CN107470317A - A kind of method of the debrominate of waste printed circuit board pyrolysis oil and lighting - Google Patents
A kind of method of the debrominate of waste printed circuit board pyrolysis oil and lighting Download PDFInfo
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- CN107470317A CN107470317A CN201710453326.3A CN201710453326A CN107470317A CN 107470317 A CN107470317 A CN 107470317A CN 201710453326 A CN201710453326 A CN 201710453326A CN 107470317 A CN107470317 A CN 107470317A
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- pyrolysis
- circuit board
- printed circuit
- pyrolysis oil
- waste printed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/16—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
-
- 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
- Y02W30/62—Plastics recycling; Rubber 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]
Abstract
The invention discloses a kind of method of waste printed circuit board pyrolysis oil debrominate and lighting, comprise the following steps：S1. waste printed circuit board is crushed, extraction non-metal powder is put into pyrolysis oven, and adds compound additive；S2. above-mentioned material is heated to 400~500 DEG C, kept for 1~2 hour, until pyrolysis, and collect pyrolysis oil completely；The compound additive is made up of the component of following parts by weight：10~90 parts of molecular sieve 5A, CaCO310~90 parts.The present invention can realize waste printed circuit board pyrolysis oil dehalogenation and lighting simultaneously, can be widely applied to processing disposal or the recycling of waste printed circuit board, have good application prospect.
Description
Technical field
The invention belongs to waste printed circuit board recovery technology field, and in particular to a kind of debrominate of waste printed circuit board pyrolysis oil and lighting
Method.
Background technology
Printed substrate（Printed Circuit Boards, abbreviation PCB）It is a kind of same with thermosetting compound material, as electricity
The core component of sub- product, it is widely used among multiple industrial circles such as electronic component and Electronic control.With science and technology
Development, the update of electronic product and superseded frequency are accelerated, and cause the discarded amount aggravations of PCB.Estimate according to United Nations University,
The electronic waste of European Union member countries in 2005 is up to 9,100,000 tons, and is increased every year with 2.5%~2.7% speed.In 2008 years
The printed substrate yield of state is up to the 26% of world's total amount, occupies the position of the first in the world.Meanwhile discarded circuit board contain it is more
The poisonous and hazardous material of kind, it is not acted upon polluting the environment, threatens human health and social stability to develop.Therefore, it is how right
The discarded circuit board sharply increased（Waste Printed Circuited Boards, abbreviation WPCBs）Carry out effective, innoxious
It is treated as the common issue that the whole world is faced.
Discarded circuit board, be known as " city mine " or " secondary metals rich ore ", essentially consist in it contain it is a variety of
Metal values（Such as gold, silver, iron, aluminium, copper）, remaining non-metallic part is mainly glass fibre and halogen-containing asphalt mixtures modified by epoxy resin
Fat.WPCBs traditional treatment methods mainly have mechanical approach, chemical method and pyrometallurgical smelting etc., it is therefore intended that recovery is therein to be had
Valuable metal, remaining non-metallic part are not fully used, and are also easy to produce substantial amounts of waste gas, waste liquid and waste residue, to ring
Cause secondary pollution in border.And metal, organic matter and glass fibre can be effectively separated by pyrolytic technique, pass is enjoyed in recent years
Note and research, especially vacuum pyrolysis treatment technology, still, have halogen-containing fire retardant in WPCBs, cause the heat after pyrolysis
Contain substantial amounts of bromo-containing substance in solution oil, seriously hinder the further utilization of pyrolysis oil.
Dehalogenation is pyrolyzed on WPCBs, domestic and foreign scholars have made many research work to this.Blazsó M（Blazsó M,
et al. 2002）Deng addition NaOH, Na respectively2CO3, CaO, ZnO, 5A molecular sieve and 13X molecular sieves and WPCBs powder heat altogether
Solution, show that additive can effectively reduce brominated phenol and the yield of brominated styrene through Py-GC/MS and Py-GC detections.Profound will China
Deng（2011）Study 12 kinds of additives（Al2O3、SnO4、CuO、ZnO、Fe2O3, Cu, Fe, Al, artificial zeolite, natural zeolite, activity
Charcoal and MCM-41）With waste epoxy circuit board vacuum pyrolysis, it is found that metal Fe and its oxide can effectively reduce bromine in cracked oil
Compound content.Liu Xin etc.（2012）By the use of urea, p- MDA, hexa as additive with it is waste and old
Circuit board powder copyrolysis, the results showed that bromine is mainly removed in the form of HBr and bromomethane, bromoethane in brominated flame-retardant.Wu Jia
Qi etc.（2014）Add Fe systems（Fe2O3、Fe3O4、FeOOH）, Ca systems（CaO、Ca(OH)2、CaCO3）With Al systems（Al2O3, activity
Al2O3Molecular sieve）Oxide and discarded circuit board carry out copyrolysis debrominate experiment, and research shows Fe3O4And CaCO3Debrominate effect
Most preferably, bromine content and in pyrolysis oil is from 72.10%（It is additive-free）Drop to 8.91% and 7.69%.Lee is extraordinarily brave etc.（2015）Grind
Study carefully Fe, FeOOH, Fe3O4, active Al2O3（3~5mm of particle diameter, graininess）And diatomite（Silicon mass fraction is 88%）With wiring board
Powder carries out copyrolysis, wherein Fe3O4, diatomite and FeOOH can significantly reduce the total bromine content of product liquid.
The content of the invention
It is an object of the invention to the drawbacks described above for prior art, there is provided a kind of waste printed circuit board pyrolysis oil debrominate and light
The method of matter, debrominate rate can exceed that 80% in pyrolysis oil so that the recovery utilization rate of waste printed circuit board significantly improves.
The object of the invention is achieved through the following technical solutions：
A kind of method of the debrominate of waste printed circuit board pyrolysis oil and lighting, comprises the following steps：
S1. waste printed circuit board is crushed, extraction non-metal powder is put into pyrolysis oven, and adds compound additive；
S2. above-mentioned material is heated to 400~500 DEG C, kept for 1~2 hour, until pyrolysis, and collect pyrolysis oil completely；
The compound additive is made up of the component of following parts by weight：10~90 parts of molecular sieve 5A, CaCO310~90 parts.
The present invention using molecular sieve 5A dissociate in the reaction come sodium ion, aluminium ion, while utilization molecular sieve 5A ratios
The advantages such as surface area is big, porosity is high are adsorbed to the halogen in pyrolysis oil, so as to reaching the removing to halogen.Secondly,
CaCO3Dissociate the CO come3 2-Exchanged with bromide ion, debrominate excellent effect.And the Al in 5A molecular sieves2O3To the lightweight of pyrolysis oil
Change has good catalytic effect, CaCO3The content of heavy constituent in pyrolysis oil can be also reduced to a certain extent.The present invention passes through
Both additives are used in combination and adjust both ratios, while reducing bromine content in pyrolysis oil, are also reduced in pyrolysis oil
Heavy constituent content.
Preferably, the compound additive is made up of the component of following parts by weight：30~70 parts of molecular sieve 5A, CaCO3
30~70 parts.
The non-metal powder is 1~3 with compound additive weight ratio:3~1.
Preferably, the non-metal powder and compound additive weight ratio are 1~2:2~1.
The feed postition of compound additive includes but is not limited to described in step S1：Added after compound additive is well mixed non-
Metal dust mixes；Molecular sieve 5A first adds that non-metal powder is well mixed to add CaCO3；CaCO3First add non-metal powder
It is well mixed to add molecular sieve 5A.
Compared with prior art, the present invention has the advantages that：
There are the brominated and high two large problems of heavy constituent content in the present invention, lead to for waste printed circuit board pyrolysis oil during resource reclaim
Cross and add composite modifier in waste printed circuit board pyrolytic process, while bromine content in reducing pyrolysis oil, reduce in pyrolysis oil
Heavy constituent content.The present invention using molecular sieve 5A dissociate in the reaction come sodium ion, aluminium ion, while utilization molecular sieve 5A
The advantages such as specific surface area is big, porosity is high are adsorbed to the halogen in pyrolysis oil, so as to reaching the removing to halogen.Its
It is secondary, CaCO3Dissociate the CO come3 2-Exchanged with bromide ion, can also remove halogen.And the Al in 5A molecular sieves2O3To pyrolysis oil
Lighting has good catalytic effect, CaCO3The content of pyrolysis oil heavy constituent can be also reduced to a certain extent.The present invention is logical
Cross and both additives are used in combination and adjust both ratios, debrominate rate can exceed that 80% in obtained pyrolysis oil；In pyrolysis oil
Less than 200 DEG C components are more than 45%, and less than 350 DEG C components are more than 90%.
Embodiment
The present invention being further expalined explanation with reference to specific embodiment, its description is more specific and detailed, but
Therefore limitation of the scope of the invention can not be interpreted as, as long as obtained using the form of equivalent substitution or equivalent transformation
Technical scheme, it all should be included within the protection domain of the claims in the present invention.
In following examples and comparative example, raw materials used is commercial goods.
Embodiment 1
A kind of compound additive, by the molecular sieve 5A of the 30 parts by weight and CaCO of 70 parts by weight3Composition.
A kind of method of the debrominate of waste printed circuit board pyrolysis oil and lighting, comprises the following steps：
S1. the circuit board for removing electronic component is crushed, and extraction non-metal powder is put into pyrolysis oven, and adds compound addition
Agent, wherein, add non-metal powder after compound additive is well mixed and be sufficiently mixed；
S2. after feeding, pyrolysis oven is heated to 400 DEG C, kept for 2 hours, until pyrolysis completely, and produced after collecting pyrolysis
Pyrolysis oil；
Non-metal powder is 1 with compound additive weight ratio:1.
Embodiment 2
A kind of compound additive, by the molecular sieve 5A of the 50 parts by weight and CaCO of 50 parts by weight3Composition.
A kind of method of the debrominate of waste printed circuit board pyrolysis oil and lighting, comprises the following steps：
S1. the circuit board for removing electronic component is crushed, and extraction non-metal powder is put into pyrolysis oven, and adds compound addition
Agent, wherein molecular sieve 5A, which first add to be well mixed with non-metal powder, adds CaCO3, CaCO3Do not mixed with non-metal powder；
S2. after feeding, pyrolysis oven is heated to 450 DEG C, kept for 1.5 hours, until pyrolysis completely, and produced after collecting pyrolysis
Raw pyrolysis oil；
Non-metal powder is 1 with compound additive weight ratio:2.
Embodiment 3
A kind of compound additive, by the molecular sieve 5A of the 80 parts by weight and CaCO of 20 parts by weight3Composition.
A kind of method of the debrominate of waste printed circuit board pyrolysis oil and lighting, comprises the following steps：
S1. the circuit board for removing electronic component crushes, and extracts non-golden powder and is put into pyrolysis oven, and adds compound addition
Agent, wherein CaCO3First add to be well mixed with non-golden powder and add molecular sieve 5A, molecular sieve 5A does not mix with non-golden powder
Close；
S2. after feeding, pyrolysis oven is heated to 500 DEG C, kept for 1 hour, until pyrolysis completely, and produced after collecting pyrolysis
Pyrolysis oil；
Non-metal powder is 2 with compound additive weight ratio:1.
Embodiment 4
A kind of compound additive, by the molecular sieve 5A of the 10 parts by weight and CaCO of 90 parts by weight3Composition.
A kind of method of the debrominate of waste printed circuit board pyrolysis oil and lighting, comprises the following steps：
S1. the circuit board for removing electronic component crushes, and extracts non-golden powder and is put into pyrolysis oven, and adds compound addition
Agent, wherein, add non-golden powder after compound additive is well mixed and be sufficiently mixed；
S2. after feeding, pyrolysis oven is heated to 400 DEG C, kept for 2 hours, until pyrolysis completely, and produced after collecting pyrolysis
Pyrolysis oil；
Non-metal powder is 1 with compound additive weight ratio:1.
Embodiment 5
A kind of compound additive, by the molecular sieve 5A of the 90 parts by weight and CaCO of 10 parts by weight3Composition.
A kind of method of the debrominate of waste printed circuit board pyrolysis oil and lighting, comprises the following steps：
S1. the circuit board for removing electronic component crushes, and extracts non-golden powder and is put into pyrolysis oven, and adds compound addition
Agent, wherein, add non-golden powder after compound additive is well mixed and be sufficiently mixed；
S2. after feeding, pyrolysis oven is heated to 400 DEG C, kept for 2 hours, until pyrolysis completely, and produced after collecting pyrolysis
Pyrolysis oil；
Non-metal powder is 1 with compound additive weight ratio:1.
Embodiment 6
A kind of compound additive, by the molecular sieve 5A of the 40 parts by weight and CaCO of 60 parts by weight3Composition.
A kind of method of the debrominate of waste printed circuit board pyrolysis oil and lighting, comprises the following steps：
S1. the circuit board for removing electronic component crushes, and extracts non-golden powder and is put into pyrolysis oven, and adds compound addition
Agent, wherein, add non-golden powder after compound additive is well mixed and be sufficiently mixed；
S2. after feeding, pyrolysis oven is heated to 400 DEG C, kept for 1.5 hours, until pyrolysis completely, and produced after collecting pyrolysis
Raw pyrolysis oil；
Non-metal powder is 1 with compound additive weight ratio:3.
Embodiment 7
A kind of compound additive, by the molecular sieve 5A of the 35 parts by weight and CaCO of 65 parts by weight3Composition.
A kind of method of the debrominate of waste printed circuit board pyrolysis oil and lighting, comprises the following steps：
S1. the circuit board for removing electronic component crushes, and extracts non-golden powder and is put into pyrolysis oven, and adds compound addition
Agent, wherein, add non-golden powder after compound additive is well mixed and be sufficiently mixed；
S2. after feeding, pyrolysis oven is heated to 400 DEG C, kept for 2 hours, until pyrolysis completely, and produced after collecting pyrolysis
Pyrolysis oil；
Non-metal powder is 3 with compound additive weight ratio:1.
Embodiment 8
A kind of compound additive, by the molecular sieve 5A of the 60 parts by weight and CaCO of 40 parts by weight3Composition.
A kind of method of the debrominate of waste printed circuit board pyrolysis oil and lighting, comprises the following steps：
S1. the circuit board for removing electronic component crushes, and extracts non-golden powder and is put into pyrolysis oven, and adds compound addition
Agent, wherein, add non-golden powder after compound additive is well mixed and be sufficiently mixed；
S2. after feeding, pyrolysis oven is heated to 400 DEG C, kept for 2 hours, until pyrolysis completely, and produced after collecting pyrolysis
Pyrolysis oil；
Non-metal powder is 1.5 with compound additive weight ratio:1.
Comparative example 1
A kind of method of the debrominate of waste printed circuit board pyrolysis oil and lighting, comprises the following steps：
S1. the circuit board for removing electronic component is crushed, and extraction non-metal powder is put into pyrolysis oven；
S2. pyrolysis oven is heated to 400 DEG C, kept for 2 hours, until pyrolysis completely, and collect caused pyrolysis oil after pyrolysis.
Comparative example 2
A kind of additive, it is made up of the 5A of 100 parts by weight.
A kind of method of the debrominate of waste printed circuit board pyrolysis oil and lighting, comprises the following steps：
S1. the circuit board for removing electronic component is crushed, and extraction non-metal powder is put into pyrolysis oven, and adds additive molecule
5A is sieved, wherein, additive is sufficiently mixed with non-golden powder；
S2. after feeding, pyrolysis oven is heated to 400 DEG C, kept for 2 hours, until pyrolysis completely, and produced after collecting pyrolysis
Pyrolysis oil；
Non-metal powder is 1 with additive weight ratio:1.
Comparative example 3
A kind of compound additive, by the CaCO of 100 parts by weight3Composition.
A kind of method of the debrominate of waste printed circuit board pyrolysis oil and lighting, comprises the following steps：
S1. the circuit board for removing electronic component is crushed, and extraction non-metal powder is put into pyrolysis oven, and adds additive
CaCO3, wherein, additive is sufficiently mixed with the non-golden powder of non-metal powder；
S2. after feeding, pyrolysis oven is heated to 400 DEG C, kept for 2 hours, until pyrolysis completely, and produced after collecting pyrolysis
Pyrolysis oil；
Non-metal powder is 1 with additive weight ratio:1.
Application examples 1
The pyrolysis oil collected will carry out performance test after embodiment 1-5 and comparative example 1-3 pyrolysis completely, including the test of debrominate rate and
Pyrolysis oil constituent analysis, it the results are shown in Table 1 and table 2.Debrominate rate is tested：It is combined using oxygen bomb combustion and the chromatography of ions to survey
Determine bromine content.
The debrominate rate test result of table 1
| Debrominate rate | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | Embodiment 8 |
| % | 82 | 91 | 87 | 84 | 81 | 84 | 86 | 88 |
| Debrominate rate | Comparative example 1 | Comparative example 2 | Comparative example 3 | |||||
| % | 0 | 27 | 31 |
The pyrolysis oil composition analysis result of table 2
| It is pyrolyzed oil component | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | Embodiment 8 |
| >360℃ | 25 | 21 | 18 | 20 | 23 | 25 | 21 | 23 |
| 240-360℃ | 19 | 20 | 25 | 23 | 20 | 21 | 21 | 22 |
| 120-240℃ | 48 | 49 | 48 | 50 | 47 | 45 | 47 | 47 |
| 120 DEG C of ＜ | 8 | 10 | 9 | 7 | 10 | 9 | 11 | 8 |
| It is pyrolyzed oil component | Comparative example 1 | Comparative example 2 | Comparative example 3 | |||||
| >360℃ | 35 | 17 | 32 | |||||
| 240-360℃ | 9 | 31 | 10 | |||||
| 120-240℃ | 48 | 50 | 49 | |||||
| 120 DEG C of ＜ | 8 | 2 | 9 |
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in the spirit and principles in the present invention
Within any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection.
Claims (4)
1. a kind of waste printed circuit board pyrolysis oil debrominate and the method for lighting, it is characterised in that comprise the following steps：
S1. waste printed circuit board is crushed, extraction non-metal powder is put into pyrolysis oven, and adds compound additive；
S2. above-mentioned material is heated to 400~500 DEG C, kept for 1~2 hour, until pyrolysis, and collect pyrolysis oil completely；
The compound additive is made up of the component of following parts by weight：10~90 parts of molecular sieve 5A, CaCO310~90 parts.
2. according to the method for claim 1, it is characterised in that the compound additive by following parts by weight component group
Into：Molecular sieve 5A30~70 part, CaCO330~70 parts.
3. according to the method for claim 1, it is characterised in that the weight ratio of the non-metal powder and compound additive is
1~3:3~1.
4. according to the method for claim 1, it is characterised in that the weight ratio of the non-metal powder and compound additive is
1~2:2~1.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108500032A (en) * | 2018-03-22 | 2018-09-07 | 安徽浩悦环境科技有限责任公司 | Brominated treatment of wastes produced method |
| CN111635502A (en) * | 2020-06-10 | 2020-09-08 | 万华化学集团股份有限公司 | Polyisocyanate composition and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04163005A (en) * | 1990-10-23 | 1992-06-08 | Matsushita Electric Works Ltd | Base material for prepreg |
| JPH06859A (en) * | 1992-06-22 | 1994-01-11 | Diafoil Co Ltd | Production of laminated film |
| CN103831287A (en) * | 2014-03-13 | 2014-06-04 | 北京神雾环境能源科技集团股份有限公司 | Method for treating circuit board |
| CN103846272A (en) * | 2014-02-27 | 2014-06-11 | 广东工业大学 | Two-step debromination method for waste printed circuit board |
| CN104624611A (en) * | 2015-01-23 | 2015-05-20 | 长沙紫宸科技开发有限公司 | Energy-regeneration pollution-free disposal method for waste electrical appliance circuit board |
-
2017
- 2017-06-15 CN CN201710453326.3A patent/CN107470317B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04163005A (en) * | 1990-10-23 | 1992-06-08 | Matsushita Electric Works Ltd | Base material for prepreg |
| JPH06859A (en) * | 1992-06-22 | 1994-01-11 | Diafoil Co Ltd | Production of laminated film |
| CN103846272A (en) * | 2014-02-27 | 2014-06-11 | 广东工业大学 | Two-step debromination method for waste printed circuit board |
| CN103831287A (en) * | 2014-03-13 | 2014-06-04 | 北京神雾环境能源科技集团股份有限公司 | Method for treating circuit board |
| CN104624611A (en) * | 2015-01-23 | 2015-05-20 | 长沙紫宸科技开发有限公司 | Energy-regeneration pollution-free disposal method for waste electrical appliance circuit board |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108500032A (en) * | 2018-03-22 | 2018-09-07 | 安徽浩悦环境科技有限责任公司 | Brominated treatment of wastes produced method |
| CN108500032B (en) * | 2018-03-22 | 2021-09-28 | 安徽浩悦环境科技有限责任公司 | Treatment method of bromine-containing waste |
| CN111635502A (en) * | 2020-06-10 | 2020-09-08 | 万华化学集团股份有限公司 | Polyisocyanate composition and preparation method and application thereof |
| CN111635502B (en) * | 2020-06-10 | 2022-04-22 | 万华化学集团股份有限公司 | Polyisocyanate composition and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN107470317B (en) | 2020-01-14 |
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