CN101928840B - 一种从废旧电路板中回收金、银的方法 - Google Patents
一种从废旧电路板中回收金、银的方法 Download PDFInfo
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- CN101928840B CN101928840B CN201010244663XA CN201010244663A CN101928840B CN 101928840 B CN101928840 B CN 101928840B CN 201010244663X A CN201010244663X A CN 201010244663XA CN 201010244663 A CN201010244663 A CN 201010244663A CN 101928840 B CN101928840 B CN 101928840B
- Authority
- CN
- China
- Prior art keywords
- gold
- silver
- circuit board
- solid
- copper
- 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.)
- Expired - Fee Related
Links
- 239000010931 gold Substances 0.000 title claims abstract description 89
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 88
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 50
- 239000004332 silver Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000002699 waste material Substances 0.000 title claims abstract description 19
- 238000002386 leaching Methods 0.000 claims abstract description 32
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- 229910014265 BrCl Inorganic materials 0.000 claims abstract description 23
- CODNYICXDISAEA-UHFFFAOYSA-N bromine monochloride Chemical compound BrCl CODNYICXDISAEA-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000011084 recovery Methods 0.000 claims abstract description 20
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 52
- 229910052802 copper Inorganic materials 0.000 claims description 32
- 239000010949 copper Substances 0.000 claims description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 31
- 239000002994 raw material Substances 0.000 claims description 28
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 14
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 claims description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- ANFIEGWCRSNVFS-UHFFFAOYSA-N [Na].OCl(=O)=O Chemical compound [Na].OCl(=O)=O ANFIEGWCRSNVFS-UHFFFAOYSA-N 0.000 claims description 12
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims description 12
- 239000012451 post-reaction mixture Substances 0.000 claims description 12
- 239000013528 metallic particle Substances 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 10
- 239000001117 sulphuric acid Substances 0.000 claims description 10
- 235000011149 sulphuric acid Nutrition 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 239000003610 charcoal Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000002791 soaking Methods 0.000 claims description 8
- 150000002739 metals Chemical class 0.000 claims description 7
- 230000008929 regeneration Effects 0.000 claims description 7
- 238000011069 regeneration method Methods 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical group [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 claims description 6
- 238000005868 electrolysis reaction Methods 0.000 claims description 6
- 230000035484 reaction time Effects 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000000605 extraction Methods 0.000 claims description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 3
- 239000001110 calcium chloride Substances 0.000 claims description 3
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 2
- 238000005204 segregation Methods 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 9
- 239000010953 base metal Substances 0.000 abstract description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 3
- 239000007800 oxidant agent Substances 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 230000001590 oxidative effect Effects 0.000 abstract description 2
- 239000002923 metal particle Substances 0.000 abstract 2
- 230000003213 activating effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 25
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000013467 fragmentation Methods 0.000 description 4
- 238000006062 fragmentation reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002203 pretreatment Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910003771 Gold(I) chloride Inorganic materials 0.000 description 2
- 239000010793 electronic waste Substances 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- FDWREHZXQUYJFJ-UHFFFAOYSA-M gold monochloride Chemical compound [Cl-].[Au+] FDWREHZXQUYJFJ-UHFFFAOYSA-M 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- NICDRCVJGXLKSF-UHFFFAOYSA-N nitric acid;trihydrochloride Chemical compound Cl.Cl.Cl.O[N+]([O-])=O NICDRCVJGXLKSF-UHFFFAOYSA-N 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- DHCDFWKWKRSZHF-UHFFFAOYSA-N sulfurothioic S-acid Chemical compound OS(O)(=O)=S DHCDFWKWKRSZHF-UHFFFAOYSA-N 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- BRSVJNYNWNMJKC-UHFFFAOYSA-N [Cl].[Au] Chemical compound [Cl].[Au] BRSVJNYNWNMJKC-UHFFFAOYSA-N 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 150000001457 metallic cations Chemical class 0.000 description 1
- -1 metals ion Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010244663XA CN101928840B (zh) | 2010-08-02 | 2010-08-02 | 一种从废旧电路板中回收金、银的方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010244663XA CN101928840B (zh) | 2010-08-02 | 2010-08-02 | 一种从废旧电路板中回收金、银的方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101928840A CN101928840A (zh) | 2010-12-29 |
| CN101928840B true CN101928840B (zh) | 2012-05-23 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010244663XA Expired - Fee Related CN101928840B (zh) | 2010-08-02 | 2010-08-02 | 一种从废旧电路板中回收金、银的方法 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101928840B (zh) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031391A (zh) * | 2010-12-30 | 2011-04-27 | 宾丽萍 | 一种从金矿尾矿中提取黄金的方法 |
| CN102808084B (zh) * | 2012-08-14 | 2014-04-02 | 云南大学 | 一种从加压氰化后液中富集铂、钯的方法 |
| CN102978414B (zh) * | 2012-11-28 | 2015-02-18 | 大连东泰产业废弃物处理有限公司 | 从含氰镀金废液中沉淀金的方法 |
| CN104178630A (zh) * | 2013-05-24 | 2014-12-03 | 欣兴电子股份有限公司 | 含铜金属污泥的处理方法 |
| CN103667707A (zh) * | 2013-12-04 | 2014-03-26 | 江苏融源再生资源科技有限公司 | 废旧电路板中回收金银的方法 |
| CN104762477A (zh) * | 2014-01-08 | 2015-07-08 | 陈怡雯 | 含银成分的废弃物回收处理方法 |
| CN104264184A (zh) * | 2014-09-12 | 2015-01-07 | 上海电力学院 | 一种从废旧线路板中提取金属铜的方法 |
| CN105586494A (zh) * | 2016-03-21 | 2016-05-18 | 黑龙江科技大学 | 一种考虑废液循环再用的碘化浸金贵液中金的回收方法 |
| CA3008880C (en) * | 2017-06-22 | 2025-05-06 | Lifezone Limited | HYDROMETALLURGICAL PROCESS FOR EXTRACTION OF PRECIOUS ELEMENTS, RARE ELEMENTS, AND BASIC ELEMENTS |
| CN108486380B (zh) * | 2018-03-26 | 2020-12-11 | 曾振坤 | 一种具有快速溶解的钛合金的装置 |
| CN109797407B (zh) * | 2019-03-13 | 2020-11-27 | 上海第二工业大学 | 一种从废旧内存条中选择性电解浸出回收金、铜的方法 |
| CN110551904A (zh) * | 2019-10-18 | 2019-12-10 | 广西森合高新科技股份有限公司 | 高硫砷碳难选金精矿非氰浸金及提金方法 |
| CN111020199A (zh) * | 2019-12-13 | 2020-04-17 | 江门市新财富环境科技有限公司 | 一种废电路板处理工艺 |
| CN112143899B (zh) * | 2020-09-16 | 2022-07-01 | 励福(江门)环保科技股份有限公司 | 一种从废线路板中回收铜及富集贵金属的方法 |
| CN113046569A (zh) * | 2021-03-03 | 2021-06-29 | 南昌航空大学 | 一种从废弃线路板中选择性回收金的方法 |
| CN114134337B (zh) * | 2021-12-03 | 2023-04-28 | 北京工业大学 | 一种低成本高效的线路板元器件中贵金属回收方法 |
| US11753699B2 (en) | 2021-12-03 | 2023-09-12 | Beijing University Of Technology | Cost-effective method for recovering precious metals in circuit board components |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100342044C (zh) * | 2004-10-28 | 2007-10-10 | 南京大学 | 一种从电子工业废渣中提取金、银、钯的工艺方法 |
| CN100580109C (zh) * | 2007-12-26 | 2010-01-13 | 东华大学 | 一种从废电路板中提金的方法 |
| CN101392325B (zh) * | 2008-10-21 | 2010-08-11 | 东华大学 | 一种从废弃印刷线路板中提取金的方法 |
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2010
- 2010-08-02 CN CN201010244663XA patent/CN101928840B/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101928840A (zh) | 2010-12-29 |
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Owner name: TCL-AOBO ENVIRONMENTAL PROTECTION AND DEVELOPMENT Free format text: FORMER OWNER: TCL ENVIRONMENTAL TECHNOLOGY CO., LTD. Effective date: 20140930 |
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