CN102191383A - 一种处理废旧印刷电路板的方法 - Google Patents
一种处理废旧印刷电路板的方法 Download PDFInfo
- Publication number
- CN102191383A CN102191383A CN2011101024103A CN201110102410A CN102191383A CN 102191383 A CN102191383 A CN 102191383A CN 2011101024103 A CN2011101024103 A CN 2011101024103A CN 201110102410 A CN201110102410 A CN 201110102410A CN 102191383 A CN102191383 A CN 102191383A
- Authority
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- Prior art keywords
- tin
- metal
- iron
- temperature
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- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000002699 waste material Substances 0.000 title claims abstract description 28
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 55
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052751 metal Inorganic materials 0.000 claims abstract description 39
- 239000002184 metal Substances 0.000 claims abstract description 39
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 28
- 229910052742 iron Inorganic materials 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 21
- 238000000926 separation method Methods 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 238000011084 recovery Methods 0.000 claims abstract description 8
- 238000007885 magnetic separation Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 44
- 239000000706 filtrate Substances 0.000 claims description 30
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 24
- 229910017604 nitric acid Inorganic materials 0.000 claims description 24
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 23
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 13
- 239000012634 fragment Substances 0.000 claims description 13
- 238000001556 precipitation Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 12
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 claims description 12
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 claims description 12
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 11
- 229910052763 palladium Inorganic materials 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 238000002386 leaching Methods 0.000 claims description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- -1 bronze ion Chemical class 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- FAKFSJNVVCGEEI-UHFFFAOYSA-J tin(4+);disulfate Chemical compound [Sn+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O FAKFSJNVVCGEEI-UHFFFAOYSA-J 0.000 claims description 6
- 241000500881 Lepisma Species 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 239000000047 product Substances 0.000 claims description 5
- 229910000679 solder Inorganic materials 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 4
- 239000006148 magnetic separator Substances 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 230000001698 pyrogenic effect Effects 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- 239000004135 Bone phosphate Substances 0.000 claims description 3
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 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
- 229910052787 antimony Inorganic materials 0.000 claims description 3
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 claims description 3
- 230000008025 crystallization Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 235000017550 sodium carbonate Nutrition 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 3
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 3
- 235000011152 sodium sulphate Nutrition 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 21
- 238000004070 electrodeposition Methods 0.000 description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- RVPVRDXYQKGNMQ-UHFFFAOYSA-N lead(2+) Chemical compound [Pb+2] RVPVRDXYQKGNMQ-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 235000019253 formic acid Nutrition 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 description 1
- 229910017090 AlO 2 Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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- 239000003063 flame retardant Substances 0.000 description 1
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- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- NICDRCVJGXLKSF-UHFFFAOYSA-N nitric acid;trihydrochloride Chemical compound Cl.Cl.Cl.O[N+]([O-])=O NICDRCVJGXLKSF-UHFFFAOYSA-N 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- XSNQEMWVLMRPFR-UHFFFAOYSA-N silver nitride Chemical compound [N-3].[Ag+].[Ag+].[Ag+] XSNQEMWVLMRPFR-UHFFFAOYSA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910001432 tin ion Inorganic materials 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
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CN201110102410A CN102191383B (zh) | 2011-04-22 | 2011-04-22 | 一种处理废旧印刷电路板的方法 |
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CN201110102410A CN102191383B (zh) | 2011-04-22 | 2011-04-22 | 一种处理废旧印刷电路板的方法 |
Publications (2)
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CN102191383A true CN102191383A (zh) | 2011-09-21 |
CN102191383B CN102191383B (zh) | 2012-10-10 |
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Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103084369A (zh) * | 2011-11-08 | 2013-05-08 | 江西格林美资源循环有限公司 | 一种电路板的无害化处理以及资源综合回收的方法 |
WO2013104895A1 (en) * | 2012-01-09 | 2013-07-18 | Itri Innovation Ltd. | Recovery of metals |
CN103388074A (zh) * | 2012-05-09 | 2013-11-13 | 荆门市格林美新材料有限公司 | 一种处理废旧电路板退锡废液的方法 |
CN103540748A (zh) * | 2012-07-16 | 2014-01-29 | 中国科学院化学研究所 | 一种废旧印刷线路板基板的金属与非金属的分离方法 |
CN103667704A (zh) * | 2012-09-17 | 2014-03-26 | 中国科学院化学研究所 | 分离废旧印刷线路板基板的金属与非金属的方法 |
CN103934536A (zh) * | 2014-05-12 | 2014-07-23 | 上海第二工业大学 | 一种对废弃印刷电路板焊接元器件进行拆解的方法 |
WO2014166484A1 (de) * | 2013-04-12 | 2014-10-16 | Loser, Ulrich | Verfahren zur konzentration von metallen aus metallhaltigen abfällen |
GB2518223A (en) * | 2013-09-16 | 2015-03-18 | Itri Innovation Ltd | Recovery of metals |
CN105112673A (zh) * | 2015-09-20 | 2015-12-02 | 成都育芽科技有限公司 | 废焊锡料制备超细二氧化锡的方法 |
CN105312705A (zh) * | 2015-12-09 | 2016-02-10 | 清华大学 | 一种从废电路板中浸提焊锡的方法 |
CN105525098A (zh) * | 2016-02-02 | 2016-04-27 | 周益辉 | 一种废旧crt显示器玻壳的回收处理方法 |
CN106756037A (zh) * | 2016-12-08 | 2017-05-31 | 清华大学 | 一种废电路板与退锡废液有价金属协同回收方法 |
CN106978536A (zh) * | 2017-03-30 | 2017-07-25 | 桑德(天津)再生资源投资控股有限公司 | 拆分废旧电路板的方法 |
CN108383278A (zh) * | 2018-03-16 | 2018-08-10 | 深圳市祺鑫天正环保科技有限公司 | 退锡废液的处理方法 |
CN110306053A (zh) * | 2018-03-20 | 2019-10-08 | 荆门市格林美新材料有限公司 | 一种废线路板有价金属的回收方法 |
CN110306054A (zh) * | 2018-03-20 | 2019-10-08 | 荆门市格林美新材料有限公司 | 一种废旧线路板有价金属的回收方法 |
CN110863110A (zh) * | 2019-12-09 | 2020-03-06 | 阳新鹏富矿业有限公司 | 一种铜、金、银、钯协同回收利用方法 |
CN114277249A (zh) * | 2021-11-26 | 2022-04-05 | 江西瑞亿电子科技有限公司 | 一种pcb锡废液循环再生式回收锡、铜和废气的处理方法 |
CN114427030A (zh) * | 2022-01-20 | 2022-05-03 | 安徽燊岚环境科技有限公司 | 一种废旧电路板回收贵金属的方法 |
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CN101665875A (zh) * | 2009-09-29 | 2010-03-10 | 刘景洋 | 一种废电路板中锡铅回收方法 |
CN101812591A (zh) * | 2009-02-20 | 2010-08-25 | 国立云林科技大学 | 废电路板的金、铜、硫酸铜、氯化铜废液回收方法 |
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CN101812591A (zh) * | 2009-02-20 | 2010-08-25 | 国立云林科技大学 | 废电路板的金、铜、硫酸铜、氯化铜废液回收方法 |
CN101665875A (zh) * | 2009-09-29 | 2010-03-10 | 刘景洋 | 一种废电路板中锡铅回收方法 |
Non-Patent Citations (1)
Title |
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刘景洋等: "废印制电路板元器件筛分及金属分类回收方法", 《现代化工》 * |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103084369B (zh) * | 2011-11-08 | 2015-09-02 | 江西格林美资源循环有限公司 | 一种电路板的无害化处理以及资源综合回收的方法 |
CN103084369A (zh) * | 2011-11-08 | 2013-05-08 | 江西格林美资源循环有限公司 | 一种电路板的无害化处理以及资源综合回收的方法 |
WO2013104895A1 (en) * | 2012-01-09 | 2013-07-18 | Itri Innovation Ltd. | Recovery of metals |
CN103388074A (zh) * | 2012-05-09 | 2013-11-13 | 荆门市格林美新材料有限公司 | 一种处理废旧电路板退锡废液的方法 |
CN103388074B (zh) * | 2012-05-09 | 2015-01-21 | 荆门市格林美新材料有限公司 | 一种处理废旧电路板退锡废液的方法 |
CN103540748A (zh) * | 2012-07-16 | 2014-01-29 | 中国科学院化学研究所 | 一种废旧印刷线路板基板的金属与非金属的分离方法 |
CN103540748B (zh) * | 2012-07-16 | 2015-10-28 | 中国科学院化学研究所 | 一种废旧印刷线路板基板的金属与非金属的分离方法 |
CN103667704A (zh) * | 2012-09-17 | 2014-03-26 | 中国科学院化学研究所 | 分离废旧印刷线路板基板的金属与非金属的方法 |
CN103667704B (zh) * | 2012-09-17 | 2015-10-28 | 中国科学院化学研究所 | 分离废旧印刷线路板基板的金属与非金属的方法 |
WO2014166484A1 (de) * | 2013-04-12 | 2014-10-16 | Loser, Ulrich | Verfahren zur konzentration von metallen aus metallhaltigen abfällen |
US10041142B2 (en) | 2013-04-12 | 2018-08-07 | Ulrich Loser | Method for concentrating metals from scrap containing metal |
WO2015036801A1 (en) * | 2013-09-16 | 2015-03-19 | Itri Innovation Ltd | Recovery of metals |
GB2518223A (en) * | 2013-09-16 | 2015-03-18 | Itri Innovation Ltd | Recovery of metals |
CN103934536A (zh) * | 2014-05-12 | 2014-07-23 | 上海第二工业大学 | 一种对废弃印刷电路板焊接元器件进行拆解的方法 |
CN105112673A (zh) * | 2015-09-20 | 2015-12-02 | 成都育芽科技有限公司 | 废焊锡料制备超细二氧化锡的方法 |
CN105312705A (zh) * | 2015-12-09 | 2016-02-10 | 清华大学 | 一种从废电路板中浸提焊锡的方法 |
CN105525098A (zh) * | 2016-02-02 | 2016-04-27 | 周益辉 | 一种废旧crt显示器玻壳的回收处理方法 |
CN106756037A (zh) * | 2016-12-08 | 2017-05-31 | 清华大学 | 一种废电路板与退锡废液有价金属协同回收方法 |
CN106756037B (zh) * | 2016-12-08 | 2018-08-03 | 清华大学 | 一种废电路板与退锡废液有价金属协同回收方法 |
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CN114427030A (zh) * | 2022-01-20 | 2022-05-03 | 安徽燊岚环境科技有限公司 | 一种废旧电路板回收贵金属的方法 |
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