GB1251290A - - Google Patents
Info
- Publication number
- GB1251290A GB1251290A GB1251290DA GB1251290A GB 1251290 A GB1251290 A GB 1251290A GB 1251290D A GB1251290D A GB 1251290DA GB 1251290 A GB1251290 A GB 1251290A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electro
- lead
- content
- liquour
- ethenoxy
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/18—Electrolytic production, recovery or refining of metals by electrolysis of solutions of lead
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/34—Electroplating: Baths therefor from solutions of lead
- C25D3/36—Electroplating: Baths therefor from solutions of lead characterised by the organic bath constituents used
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Paper (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
1,251,290. Electro-refining of lead. ITT INDUSTRIES Inc. July 23, 1969 [Aug.1, 1968], No.36992/69. Heading C7B. Lead is electro-deposited using an aqueous solution containing Pb Si F 6 (e.g. 4-10% Pb content), H 2 Si F 6 (e.g. 5-12%) and, as additive for producing a dense, smooth, uniform cathode deposit, 140- 1200 mg/l of a lignosulphonate (e.g. spent sulphite liquour from wood pulping) and 40-600 mg/l of a water-soluble block copolymer of polyethenoxy polypropylene oxides with at least 13 polypropylene oxide units and 20-90% ethenoxy content.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US74929968A | 1968-08-01 | 1968-08-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1251290A true GB1251290A (en) | 1971-10-27 |
Family
ID=25013157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1251290D Expired GB1251290A (en) | 1968-08-01 | 1969-07-23 |
Country Status (7)
Country | Link |
---|---|
US (1) | US3554884A (en) |
DE (1) | DE1938515A1 (en) |
ES (1) | ES370119A1 (en) |
FR (1) | FR2014858A1 (en) |
GB (1) | GB1251290A (en) |
NL (1) | NL6911737A (en) |
SE (1) | SE348763B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1152776B (en) * | 1982-05-27 | 1987-01-14 | Snam Progetti | INSOLUBLE ANODES FOR THE EXTRACTION OF THE LEAD FROM THE ELECTROLYTE IN THE ELECTROCHEMICAL PROCESSES FOR THE RECOVERY OF THE METALS CONTAINED IN THE EXHAUSTED ACCUMULATORS |
IT1157026B (en) * | 1982-06-04 | 1987-02-11 | Ginatta Marco Elettrochim | METHOD FOR THE ELECTROLYTIC LEAD PRODUCTION |
US20050199507A1 (en) * | 2004-03-09 | 2005-09-15 | Taiwan Semiconductor Manufacturing Co., Ltd. | Chemical structures and compositions of ECP additives to reduce pit defects |
-
1968
- 1968-08-01 US US749299A patent/US3554884A/en not_active Expired - Lifetime
-
1969
- 1969-07-23 GB GB1251290D patent/GB1251290A/en not_active Expired
- 1969-07-29 SE SE10627/69*A patent/SE348763B/xx unknown
- 1969-07-29 DE DE19691938515 patent/DE1938515A1/en active Pending
- 1969-07-31 FR FR6926194A patent/FR2014858A1/fr not_active Withdrawn
- 1969-07-31 ES ES370119A patent/ES370119A1/en not_active Expired
- 1969-08-01 NL NL6911737A patent/NL6911737A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
NL6911737A (en) | 1970-02-03 |
SE348763B (en) | 1972-09-11 |
ES370119A1 (en) | 1971-07-16 |
FR2014858A1 (en) | 1970-04-24 |
US3554884A (en) | 1971-01-12 |
DE1938515A1 (en) | 1970-04-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |