CN106783473A - A kind of recovery and treatment method of waste old fluorescence lamp tube - Google Patents
A kind of recovery and treatment method of waste old fluorescence lamp tube Download PDFInfo
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- CN106783473A CN106783473A CN201710093768.1A CN201710093768A CN106783473A CN 106783473 A CN106783473 A CN 106783473A CN 201710093768 A CN201710093768 A CN 201710093768A CN 106783473 A CN106783473 A CN 106783473A
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- 238000011084 recovery Methods 0.000 title claims abstract description 37
- 239000002699 waste material Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000011521 glass Substances 0.000 claims abstract description 57
- 239000000463 material Substances 0.000 claims abstract description 28
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 28
- 239000012634 fragment Substances 0.000 claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims abstract description 10
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 10
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 229910052693 Europium Inorganic materials 0.000 claims description 12
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 12
- 229920003023 plastic Polymers 0.000 claims description 12
- 229910052727 yttrium Inorganic materials 0.000 claims description 12
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 12
- 238000007670 refining Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 6
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 5
- 239000000284 extract Substances 0.000 claims description 5
- 229910017604 nitric acid Inorganic materials 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- MQAYPFVXSPHGJM-UHFFFAOYSA-M trimethyl(phenyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)C1=CC=CC=C1 MQAYPFVXSPHGJM-UHFFFAOYSA-M 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 229910002651 NO3 Inorganic materials 0.000 claims description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000003795 desorption Methods 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 230000029087 digestion Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000012266 salt solution Substances 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- 150000003567 thiocyanates Chemical class 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- -1 wire Substances 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 239000006148 magnetic separator Substances 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims 1
- 238000004064 recycling Methods 0.000 abstract description 4
- 239000007769 metal material Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- OWSAONVDQMWRRP-UHFFFAOYSA-N CCl(C)(C)C1=CC=CC=C1 Chemical compound CCl(C)(C)C1=CC=CC=C1 OWSAONVDQMWRRP-UHFFFAOYSA-N 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000005355 lead glass Substances 0.000 description 2
- 239000012190 activator Substances 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 229960002594 arsenic trioxide Drugs 0.000 description 1
- GOLCXWYRSKYTSP-UHFFFAOYSA-N arsenic trioxide Inorganic materials O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- KTTMEOWBIWLMSE-UHFFFAOYSA-N diarsenic trioxide Chemical compound O1[As](O2)O[As]3O[As]1O[As]2O3 KTTMEOWBIWLMSE-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229940100892 mercury compound Drugs 0.000 description 1
- 150000002731 mercury compounds Chemical class 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/52—Recovery of material from discharge tubes or lamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B15/00—Combinations of apparatus for separating solids from solids by dry methods applicable to bulk material, e.g. loose articles fit to be handled like bulk material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/60—Glass recycling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of recovery and treatment method of waste old fluorescence lamp tube, the recovery and treatment method of the waste old fluorescence lamp tube is comprised the following steps that：S1：The collection of waste fluorescent lamp；S2：Cleaning；S3：Cutting；S4：Lamp holder is disassembled；S5：Fluorescent material is collected；S6：Glass lamp is crushed；S7：The separation and recovery of mercury；S8：The recovery of glass fragment；S9：The recovery of rare earth valuable element.The recovery and treatment method of the strict control ring waste old fluorescence lamp tube of the present invention, the present invention realizes the recycling of old and useless fluorescent lamp tube material, effectively metal material, glass and fluorescent material are separated, the mercury that glass and fluorescent material are contained within also is reclaimed, simultaneously the rare earth valuable element in fluorescent material is reclaimed out, it is to avoid pollution of the old and useless fluorescent lamp tube material to environment, the recovery and treatment method of the waste old fluorescence lamp tube, have the advantages that reasonable in design and safe and practical, can be used with popularity.
Description
Technical field
The present invention relates to waste fluorescent lamp recovery technology field, specially a kind of recovery and treatment method of waste old fluorescence lamp tube.
Background technology
With the continuous enhancing that people's energy-conserving and environment-protective are realized, high-efficiency straight fluorescent lamp, electricity-saving lamp, compact fluorescent lamp are gradually
Traditional incandescent lamp is instead of, as the light source that illumination consumption is maximum.But, due to fluorescent lamp by the use of mercury as activity activator into
Point, mercury vapour or solid-state mercury compound that the lamp of different model is not all waited containing quantity.If untreated to discarded fluorescent lamp
Or it is mishandling, harmful components mercury will enter human body by skin, breathing or food, and high risks are produced to human health.
According to preresearch estimates, one caliber of China is 25~45mg for the T12 fluorescent lamps mercury content of 36mm；One caliber is glimmering for the T5 of 16mm
Light lamp mercury content is 20mg；One caliber is 10mg for the compact fluorescent lamp mercury content of 10mm.China's production fluorescence in 2004
About 1,000,000,000, lamp, to disenabling stage is mostly at present, based on the average mercury content 30mg of every tubes, it is glimmering that the year produces
Mercurous total amount about 30t in light lamp.The boiling point of mercury is very low, can evaporate at normal temperatures, so after discarded fluorescent lamp is broken, can stand
Mercury vapour is distributed to surrounding, the mercury mass concentration in surrounding air is reached 10~20mg/m3, and national regulation
It is only 0.01mg/m3 that the aerial highest of mercury allows mass concentration.In addition, fluorescent tube is usually using lead glass, lead glass
In lead oxide precipitation can be slowly replaced under various natural environments.Arsenic in glass is to make clear with white arsenic in glass smelting
Clear agent bring into and final residue in glass.
For various reasons, China is paid close attention to discarded fluorescent lamp mercury pollution problem and resource reutilization problem so far
Less, control is started late, and the recovery of the discarded fluorescent lamp of China is anticipated also in difficult condition along with citizen is environmentally friendly
Knowledge is not high, throws out discarded fluorescent lamp pipe without care everywhere, makes recovery operation more be difficult to carry out.Existing laws and regulations are mostly policy
File, implementation dynamics is far from enough.Good waste fluorescent lamp way of recycling does not change this present situation.
The content of the invention
It is an object of the invention to provide a kind of recovery and treatment method of waste old fluorescence lamp tube, to solve above-mentioned background technology
The problem of middle proposition.
To achieve the above object, the present invention provides following technical scheme：A kind of recovery and treatment method of waste old fluorescence lamp tube,
The recovery and treatment method of the waste old fluorescence lamp tube is comprised the following steps that：
S1：The collection of waste fluorescent lamp, the waste old fluorescence lamp tube that purchase is collected on the market is placed at one, and sticks mark
Sign；
S2：Cleaning, the waste old fluorescence lamp tube washing that will be collected into S1 is clean, and air blast drying at room temperature；
S3：Cutting, the waste old fluorescence lamp tube two ends in S2 are cut away, and glass lamp unification is placed at A, and lamp holder is unified
It is placed at B；
S4：Lamp holder is disassembled, and the available metal of the cap part being placed in S3 at B is disassembled, and lamp holder other parts are led to
Cross grinder crushing to fragmentate, chip size control accelerates in below 2mm by shaking air flow bed, mutually advances, rubs and matches somebody with somebody
Electromagnetic separator is closed, aluminium, wire, glass and parts of plastics is efficiently separated out, refining is molten during parts of plastics is placed on into refining smelting furnace, and refining is molten
Temperature control at 70-200 DEG C, for remaking lamp holder plastics and making other plastic products；
S5：Fluorescent material is collected, and glass lamp at A will be placed in S3 and be received through being blown into after high-pressure blast blows out mercurous fluorescent material
Collection, and the fluorescent material of collection is reclaimed into mercury by vacuum heater；
S6：Glass lamp is crushed, and glass lamp is crushed and fragmentated by the glass lamp that will be processed in S5 by grinder, and
By glass lamp garbage collection together；
S7：The separation and recovery of mercury, is separated the mercury in the glass lamp fragment in S4 and S6 using thermal desorption method, will
The glass tube fragment of crushing heats 1h at 380-400 DEG C, can completely be desorbed mercury；
S8：The recovery of glass fragment, the glass fragment that will be handled well in S7 delivers to glass factory and is reprocessed into glass lamp
Or other glasswares；
S9：The recovery of rare earth valuable element, high pressure digestion method is used by the fluorescent material in S5, using 65% sulfuric acid and
69% nitric acid extracts the yttrium and europium in discarded Fluorescence Fluorescence powder, converts it into rhodanate, then uses trimethylphenyl chlorine
Change ammonium selective extraction from rhodanate and go out yttrium and europium, and with 69% nitric acid and tributyl phosphate (TBP) by organic solvent
Yttrium and europium extract in salpeter solution and exist in the form of nitrate, then rare earth gold is restored by hydrogen heat reduction technique
Category.
Preferably, the cutting mode in the step S3 is the pipe cutting tool that sword is cut using diamond, is enclosed within Glass lamp
The place of incision of pipe is rotated one week and can be cut off.
Preferably, the grinder for being used in the step S4 and S6 is glass fine crusher, and rotating speed is that 800-1000 turns/min,
Vibrations air flow bed uses vertical vibration bed.
Preferably, vacuum heat heating by electric cooker is used in the step S5, heated perimeter is at 0-850 DEG C.
Preferably, the extraction mode of the step S9 will add trimethylphenyl ammonium chloride in thiocyanate salt solution, put
Fully vibrated in separatory funnel, then stand separatory funnel, after after liquid layered, carry out a point liquid, isolated containing yttrium and europium
Organic solvent.
Compared with prior art, the beneficial effects of the invention are as follows：The recovery of the strict control ring waste old fluorescence lamp tube of the present invention
Processing method, the present invention realizes the recycling of old and useless fluorescent lamp tube material, effectively separates metal material, glass and fluorescent material
Out, the mercury that glass and fluorescent material are contained within also is reclaimed, while the rare earth valuable element in fluorescent material is reclaimed out,
Avoid pollution of the old and useless fluorescent lamp tube material to environment, the recovery and treatment method of the waste old fluorescence lamp tube, with reasonable in design
And it is safe and practical the advantages of, can be used with popularity.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
A kind of recovery and treatment method of waste old fluorescence lamp tube, the recovery and treatment method specific steps of the waste old fluorescence lamp tube are such as
Under：
S1：The collection of waste fluorescent lamp, the waste old fluorescence lamp tube that purchase is collected on the market is placed at one, and sticks mark
Sign；
S2：Cleaning, the waste old fluorescence lamp tube washing that will be collected into S1 is clean, and air blast drying at room temperature；
S3：Cutting, the waste old fluorescence lamp tube two ends in S2 are cut away, and glass lamp unification is placed at A, and lamp holder is unified
It is placed at B；
S4：Lamp holder is disassembled, and the available metal of the cap part being placed in S3 at B is disassembled, and lamp holder other parts are led to
Cross grinder crushing to fragmentate, chip size control accelerates in below 2mm by shaking air flow bed, mutually advances, rubs and matches somebody with somebody
Electromagnetic separator is closed, aluminium, wire, glass and parts of plastics is efficiently separated out, refining is molten during parts of plastics is placed on into refining smelting furnace, and refining is molten
Temperature control at 70-200 DEG C, for remaking lamp holder plastics and making other plastic products；
S5：Fluorescent material is collected, and glass lamp at A will be placed in S3 and be received through being blown into after high-pressure blast blows out mercurous fluorescent material
Collection, and the fluorescent material of collection is reclaimed into mercury by vacuum heater；
S6：Glass lamp is crushed；Glass lamp is crushed and fragmentated by the glass lamp that will be processed in S5 by grinder, and
By glass lamp garbage collection together；
S7：The separation and recovery of mercury, is separated the mercury in the glass lamp fragment in S4 and S6 using thermal desorption method, will
The glass tube fragment of crushing heats 1h at 380-400 DEG C, can completely be desorbed mercury；
S8：The recovery of glass fragment, the glass fragment that will be handled well in S7 delivers to glass factory and is reprocessed into glass lamp
Or other glasswares；
S9：The recovery of rare earth valuable element, high pressure digestion method is used by the fluorescent material in S5, using 65% sulfuric acid and
69% nitric acid extracts the yttrium and europium in discarded Fluorescence Fluorescence powder, converts it into rhodanate, then uses trimethylphenyl chlorine
Change ammonium selective extraction from rhodanate and go out yttrium and europium, and with 69% nitric acid and tributyl phosphate (TBP) by organic solvent
Yttrium and europium extract in salpeter solution and exist in the form of nitrate, then rare earth gold is restored by hydrogen heat reduction technique
Category.
Cutting mode in the step S3 is the pipe cutting tool that sword is cut using diamond, is enclosed within the cut-out of glass lamp
Position rotates one week and can be cut off.
The grinder used in the step S4 and S6 is glass fine crusher, and rotating speed is that 800-1000 turns/min, shakes gas
Fluidized bed uses vertical vibration bed.
Vacuum heat heating by electric cooker is used in the step S5, heated perimeter is at 0-850 DEG C.
The extraction mode of the step S9 will add trimethylphenyl ammonium chloride in thiocyanate salt solution, be placed on a point liquid leakage
Fully vibrated in bucket, then stand separatory funnel, after after liquid layered, carry out a point liquid, isolate the organic solvent containing yttrium and europium.
The recovery and treatment method of the strict control ring waste old fluorescence lamp tube of the present invention, the present invention realizes old and useless fluorescent lamp tube material
Recycling, effectively metal material, glass and fluorescent material are separated, the mercury that glass and fluorescent material are contained within also is obtained
Reclaim, while the rare earth valuable element in fluorescent material is reclaimed out, it is to avoid pollution of the old and useless fluorescent lamp tube material to environment,
The recovery and treatment method of the waste old fluorescence lamp tube, has the advantages that reasonable in design and safe and practical, can be used with popularity.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (5)
1. a kind of recovery and treatment method of waste old fluorescence lamp tube, it is characterised in that：The recovery and treatment method of the waste old fluorescence lamp tube
Comprise the following steps that：
S1：The collection of waste fluorescent lamp, the waste old fluorescence lamp tube that purchase is collected on the market is placed at one, and labelled；
S2：Cleaning, the waste old fluorescence lamp tube washing that will be collected into S1 is clean, and air blast drying at room temperature；
S3：Cutting, the waste old fluorescence lamp tube two ends in S2 are cut away, and glass lamp unification is placed at A, and lamp holder is unified to place
At B；
S4：Lamp holder is disassembled, and the available metal of the cap part being placed in S3 at B is disassembled, and lamp holder other parts pass through powder
Millstone is crushed and fragmentated, and chip size control is accelerated in below 2mm by shaking air flow bed, is mutually advanced, is rubbed and coordinates electricity
Magnetic separator, efficiently separates out aluminium, wire, glass and parts of plastics, and refining is molten during parts of plastics is placed on into refining smelting furnace, refines melting temperatur
Control at 70-200 DEG C, for remaking lamp holder plastics and making other plastic products；
S5：Fluorescent material is collected, and glass lamp at A will be placed in S3 and be collected through being blown into after high-pressure blast blows out mercurous fluorescent material,
And the fluorescent material of collection is reclaimed into mercury by vacuum heater；
S6：Glass lamp is crushed；Glass lamp is crushed and fragmentated by the glass lamp that will be processed in S5 by grinder, and by glass
Glass fluorescent tube garbage collection is together；
S7：The separation and recovery of mercury, is separated the mercury in the glass lamp fragment in S4 and S6 using thermal desorption method, will be crushed
Glass tube fragment heat 1h at 380-400 DEG C, mercury can be completely desorbed；
S8：The recovery of glass fragment, the glass fragment that will be handled well in S7 deliver to glass factory be reprocessed into glass lamp or
Other glasswares；
S9：The recovery of rare earth valuable element, uses high pressure digestion method, using 65% sulfuric acid and 69% nitre by the fluorescent material in S5
Acid extracts the yttrium and europium in discarded Fluorescence Fluorescence powder, converts it into rhodanate, then with trimethylphenyl ammonium chloride from
Selective extraction goes out yttrium and europium in rhodanate, and with 69% nitric acid and tributyl phosphate (TBP) by the yttrium in organic solvent and
Europium exists in extracting salpeter solution in the form of nitrate, then restores rare earth metal by hydrogen heat reduction technique.
2. the recovery and treatment method of a kind of waste old fluorescence lamp tube according to claim 1, it is characterised in that：The step S3
In cutting mode be the pipe cutting tool that sword is cut using diamond, be enclosed within glass lamp place of incision rotate one week by cut
It is disconnected.
3. the recovery and treatment method of a kind of waste old fluorescence lamp tube according to claim 1, it is characterised in that：The step S4
It is glass fine crusher with the grinder used in S6, rotating speed is that 800-1000 turns/min, and vibrations air flow bed uses Vertical Vibrating
Dynamic bed.
4. the recovery and treatment method of a kind of waste old fluorescence lamp tube according to claim 1, it is characterised in that：The step S5
In use vacuum heat heating by electric cooker, heated perimeter is at 0-850 DEG C.
5. the recovery and treatment method of a kind of waste old fluorescence lamp tube according to claim 1, it is characterised in that：The step S9
Extraction mode trimethylphenyl ammonium chloride will be added in thiocyanate salt solution, be placed in separatory funnel and fully vibrate, then
Separatory funnel is stood, after after liquid layered, a point liquid is carried out, the organic solvent containing yttrium and europium is isolated.
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| CN201710093768.1A CN106783473A (en) | 2017-02-21 | 2017-02-21 | A kind of recovery and treatment method of waste old fluorescence lamp tube |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799372A (en) * | 2017-10-27 | 2018-03-13 | 锦州光能环保科技有限公司 | A kind of recovery and treatment method of waste old fluorescence lamp tube |
| CN108288577A (en) * | 2017-08-08 | 2018-07-17 | 兰州大学 | A kind of fluorescent tube recovery method and its equipment |
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| CN108288577B (en) * | 2017-08-08 | 2023-12-29 | 兰州大学 | Fluorescent lamp tube recycling method and equipment thereof |
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