FI20070288A0 - Menetelmä syövytysliuoksen käsittelemiseksi ja uudelleenkäyttämiseksi - Google Patents
Menetelmä syövytysliuoksen käsittelemiseksi ja uudelleenkäyttämiseksiInfo
- Publication number
- FI20070288A0 FI20070288A0 FI20070288A FI20070288A FI20070288A0 FI 20070288 A0 FI20070288 A0 FI 20070288A0 FI 20070288 A FI20070288 A FI 20070288A FI 20070288 A FI20070288 A FI 20070288A FI 20070288 A0 FI20070288 A0 FI 20070288A0
- Authority
- FI
- Finland
- Prior art keywords
- tin
- solution
- stripping
- stripping solution
- elevated temperatures
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/46—Regeneration of etching compositions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5272—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using specific organic precipitants
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B13/00—Obtaining lead
- C22B13/04—Obtaining lead by wet processes
- C22B13/045—Recovery from waste materials
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B25/00—Obtaining tin
- C22B25/04—Obtaining tin by wet processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/065—Nitric acids or salts thereof
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/30—Acidic compositions for etching other metallic material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/346—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from semiconductor processing, e.g. waste water from polishing of wafers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/16—Extraction of metal compounds from ores or concentrates by wet processes by leaching in organic solutions
- C22B3/1608—Leaching with acyclic or carbocyclic agents
- C22B3/1616—Leaching with acyclic or carbocyclic agents of a single type
- C22B3/165—Leaching with acyclic or carbocyclic agents of a single type with organic acids
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Inorganic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Removal Of Specific Substances (AREA)
- Manufacture And Refinement Of Metals (AREA)
- ing And Chemical Polishing (AREA)
- Manufacturing Of Printed Wiring (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Manufacturing Of Printed Circuit Boards (AREA)
- Chemical Treatment Of Metals (AREA)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20070288A FI120052B (fi) | 2007-04-13 | 2007-04-13 | Menetelmä syövytysliuoksen käsittelemiseksi ja uudelleenkäyttämiseksi |
US12/595,445 US20100193467A1 (en) | 2007-04-13 | 2008-04-11 | Method for the treatment and reuse of a stripper solution |
CN200880011967.2A CN101668705B (zh) | 2007-04-13 | 2008-04-11 | 剥离液的处理和再利用方法 |
EP20080736827 EP2152633B1 (en) | 2007-04-13 | 2008-04-11 | Method for the treatment and reuse of a stripper solution |
KR1020097023774A KR101212755B1 (ko) | 2007-04-13 | 2008-04-11 | 스트리퍼 용액의 처리 및 재사용 방법 |
DE200860002925 DE602008002925D1 (de) | 2007-04-13 | 2008-04-11 | Verfahren zur behandlung und wiederverwendung einer stripplösung |
CA 2682146 CA2682146C (en) | 2007-04-13 | 2008-04-11 | Method for the treatment and reuse of a stripper solution |
AT08736827T ATE483668T1 (de) | 2007-04-13 | 2008-04-11 | Verfahren zur behandlung und wiederverwendung einer stripplösung |
PCT/FI2008/050178 WO2008125728A2 (en) | 2007-04-13 | 2008-04-11 | Method for the treatment and reuse of a stripper solution |
JP2010502536A JP5091306B2 (ja) | 2007-04-13 | 2008-04-11 | 剥離液の処理および再生使用のための方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20070288A FI120052B (fi) | 2007-04-13 | 2007-04-13 | Menetelmä syövytysliuoksen käsittelemiseksi ja uudelleenkäyttämiseksi |
FI20070288 | 2007-04-13 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI20070288A0 true FI20070288A0 (fi) | 2007-04-13 |
FI20070288A FI20070288A (fi) | 2008-10-14 |
FI120052B FI120052B (fi) | 2009-06-15 |
Family
ID=38009827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20070288A FI120052B (fi) | 2007-04-13 | 2007-04-13 | Menetelmä syövytysliuoksen käsittelemiseksi ja uudelleenkäyttämiseksi |
Country Status (10)
Country | Link |
---|---|
US (1) | US20100193467A1 (fi) |
EP (1) | EP2152633B1 (fi) |
JP (1) | JP5091306B2 (fi) |
KR (1) | KR101212755B1 (fi) |
CN (1) | CN101668705B (fi) |
AT (1) | ATE483668T1 (fi) |
CA (1) | CA2682146C (fi) |
DE (1) | DE602008002925D1 (fi) |
FI (1) | FI120052B (fi) |
WO (1) | WO2008125728A2 (fi) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5481233B2 (ja) * | 2010-03-04 | 2014-04-23 | Dowaメタルテック株式会社 | Snイオンを含有する廃液の再生処理方法 |
KR101143216B1 (ko) * | 2010-03-19 | 2012-05-18 | 김경선 | 폐납재로부터 고체주석화합물을 분리하는 방법 및 그로부터 고순도의 주석(Sn)을 회수하는 방법 |
CN102560118B (zh) * | 2012-01-09 | 2013-07-24 | 刘景洋 | 一种废电路板浸提液中锡铅回收方法 |
CN103436885A (zh) * | 2013-09-25 | 2013-12-11 | 深圳市瑞世兴科技有限公司 | 退锡废液的循环利用方法 |
KR101527108B1 (ko) * | 2014-06-13 | 2015-06-15 | 대진대학교 산학협력단 | 질산계 주석 함유 폐액으로부터 주석의 선택적 회수방법 |
CN104894599A (zh) * | 2015-06-23 | 2015-09-09 | 成都虹华环保科技股份有限公司 | 一种退锡废液的回收利用工艺 |
CN108383278B (zh) * | 2018-03-16 | 2019-08-09 | 深圳市祺鑫天正环保科技有限公司 | 退锡废液的处理方法 |
CN109534575A (zh) * | 2018-12-25 | 2019-03-29 | 江西遂川通明电子科技有限公司 | 一种pcb退锡废水的无损再生处理工艺 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51125605A (en) * | 1975-02-25 | 1976-11-02 | Toray Ind Inc | A method of fractional recovery of heavy metals |
JPH01312086A (ja) * | 1988-06-10 | 1989-12-15 | Hitachi Condenser Co Ltd | エッチング廃液の再生処理法 |
US4957653A (en) * | 1989-04-07 | 1990-09-18 | Macdermid, Incorporated | Composition containing alkane sulfonic acid and ferric nitrate for stripping tin or tin-lead alloy from copper surfaces, and method for stripping tin or tin-lead alloy |
EP0429044A1 (en) * | 1989-11-21 | 1991-05-29 | GC GALVANO CONSULT GmbH | Process for recovering metals from aqueous solutions |
US5505872A (en) * | 1995-05-23 | 1996-04-09 | Applied Electroless Concepts, Inc. | Solder stripper recycle and reuse |
US5755950A (en) * | 1995-06-07 | 1998-05-26 | Dulin Metals Company | Process for removing plating materials from copper-based substrates |
JPH1121681A (ja) * | 1997-07-04 | 1999-01-26 | Mec Kk | 錫または半田用剥離液の再生処理方法 |
US6290835B1 (en) * | 2000-02-07 | 2001-09-18 | Rd Chemical Company | Treatment of waste from printed circuit board production for recovery of tin and environmentally safe disposal |
TW553906B (en) * | 2002-03-21 | 2003-09-21 | Amia Co Ltd | A method for the treatment of waste tin-lead stripping solution |
US6685820B2 (en) * | 2002-04-26 | 2004-02-03 | Amia Co., Ltd. | Method for treating spent tin/lead stripping solution |
JP4071041B2 (ja) * | 2002-05-22 | 2008-04-02 | 日鉱金属株式会社 | 銅合金酸洗廃液の再生方法 |
CN1209500C (zh) * | 2002-08-01 | 2005-07-06 | 昶昕实业股份有限公司 | 去除剥锡或剥锡铅废液中铜、亚锡及亚铅离子的方法 |
JP2005105309A (ja) * | 2003-09-29 | 2005-04-21 | Toto Ltd | クロムめっき液中の銅不純物除去方法 |
FI121569B (fi) | 2005-10-14 | 2011-01-14 | Yara Suomi Oy | Menetelmä metallioksidien saostamiseksi jätevesiliuoksesta |
-
2007
- 2007-04-13 FI FI20070288A patent/FI120052B/fi not_active IP Right Cessation
-
2008
- 2008-04-11 CA CA 2682146 patent/CA2682146C/en not_active Expired - Fee Related
- 2008-04-11 AT AT08736827T patent/ATE483668T1/de not_active IP Right Cessation
- 2008-04-11 KR KR1020097023774A patent/KR101212755B1/ko not_active IP Right Cessation
- 2008-04-11 CN CN200880011967.2A patent/CN101668705B/zh not_active Expired - Fee Related
- 2008-04-11 EP EP20080736827 patent/EP2152633B1/en not_active Not-in-force
- 2008-04-11 US US12/595,445 patent/US20100193467A1/en not_active Abandoned
- 2008-04-11 WO PCT/FI2008/050178 patent/WO2008125728A2/en active Application Filing
- 2008-04-11 DE DE200860002925 patent/DE602008002925D1/de active Active
- 2008-04-11 JP JP2010502536A patent/JP5091306B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FI120052B (fi) | 2009-06-15 |
KR20100008783A (ko) | 2010-01-26 |
CN101668705B (zh) | 2014-12-31 |
WO2008125728A3 (en) | 2009-03-19 |
KR101212755B1 (ko) | 2012-12-14 |
JP5091306B2 (ja) | 2012-12-05 |
ATE483668T1 (de) | 2010-10-15 |
CN101668705A (zh) | 2010-03-10 |
JP2010524657A (ja) | 2010-07-22 |
EP2152633B1 (en) | 2010-10-06 |
CA2682146A1 (en) | 2008-10-23 |
DE602008002925D1 (de) | 2010-11-18 |
FI20070288A (fi) | 2008-10-14 |
WO2008125728A2 (en) | 2008-10-23 |
EP2152633A2 (en) | 2010-02-17 |
US20100193467A1 (en) | 2010-08-05 |
CA2682146C (en) | 2012-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI20070288A (fi) | Menetelmä syövytysliuoksen käsittelemiseksi ja uudelleenkäyttämiseksi | |
US11198615B2 (en) | Method of pretreatment and bromine recovery of PCB incineration ash | |
CN102942278A (zh) | 一种酸性含铜废液的处理方法 | |
CN104512974A (zh) | 一种深度去除水体中持久性有机污染物和重金属的方法 | |
JP4758377B2 (ja) | 焼却灰の処理方法 | |
CN103613179A (zh) | 一种废水处理混凝剂及其制备方法 | |
CN101580317A (zh) | 一种含镍废水处理工艺 | |
CN105296757A (zh) | 一种退锡废液的处理方法 | |
CN104876367A (zh) | 对从废盐酸和碱性污泥获得的酸性液进行综合处理的方法 | |
CN104178630A (zh) | 含铜金属污泥的处理方法 | |
KR20080073038A (ko) | 인쇄회로기판 제조시 발생하는 폐수를 처리하는 과정 중발생된 슬러지내의 구리를 회수하는 방법 | |
JP6260332B2 (ja) | セメント製造に用いる廃棄物系燃焼灰の処理方法及び処理装置 | |
CN106745416B (zh) | 一种高温熔融铜渣处理污酸中砷和氟的应用及其应用方法 | |
CN102452696A (zh) | 一种高盐含量高cod碱渣中和水的治理方法 | |
JP2010090452A (ja) | 製造プロセスにおける銅資源の循環再生方法 | |
CN105733664B (zh) | 一种原油电脱盐脱钙工艺方法 | |
CN103864254B (zh) | 钢绳酸洗磷化酸性废液除铅锌处理及综合利用的方法 | |
CN105543481A (zh) | 铜阳极泥处理产生的高酸废液中铜、铋、砷分离的方法 | |
CN108164071B (zh) | 一种从烟气吸收液中回收溴盐的方法 | |
WO2018086096A1 (zh) | 一种油田废水絮凝剂 | |
KR100691165B1 (ko) | 산세공정에서 생긴 폐황산의 회수 방법 | |
CN102328982B (zh) | 一种氯化铁废液再生并回收有价金属的方法 | |
CN113174484A (zh) | 一种稀土原矿、矿渣的溶解浸出装置 | |
CN104843957A (zh) | 对钢丝绳加工中产生的废盐酸和碱性污泥进行综合处理的方法 | |
CN102603105A (zh) | 一种实验室氰化镀铜废液循环利用的方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Transfer of assignment of patent |
Owner name: YARA SUOMI OY Free format text: YARA SUOMI OY |
|
FG | Patent granted |
Ref document number: 120052 Country of ref document: FI |
|
MM | Patent lapsed |