GB1202992A - Process for electro depositing low oxygen copper - Google Patents
Process for electro depositing low oxygen copperInfo
- Publication number
- GB1202992A GB1202992A GB3172868A GB3172868A GB1202992A GB 1202992 A GB1202992 A GB 1202992A GB 3172868 A GB3172868 A GB 3172868A GB 3172868 A GB3172868 A GB 3172868A GB 1202992 A GB1202992 A GB 1202992A
- Authority
- GB
- United Kingdom
- Prior art keywords
- copper
- low oxygen
- electro
- july
- deposition
- 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
- C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
1,202,992. Electro-refining copper. NORTH AMERICAN ROCKWELL CORP. July 3, 1968 [July 3, 1967], No.31728/68. Heading C7B. Copper of low oxygen content, e.g. 6 ppm, is obtained by cathodic electro-deposition at a current density of 20 to 400 amps/sq. ft. from a copper plating bath containing additionally 0À001 to 5 ozs/U.S. gallon of xylose, arabinose, ribose or lyxose or a mixture of two or more of these pentoses which is supplied with copper from a copper anode containing oxygen. The copper plating bath may be of the sulphate, fluoborate, pyrophosphate or free cyanide type. Reference is also made to the use of copper baths containing sulphate and oxalate with or without boric acid, and to chloridesodium thiosulphate baths. Deposition may be effected on to stainless steel cathodes from which the copper is melted off under an inert atmosphere to form low oxygen ingots, or on to undersize objects followed if desired by machining to precise dimensions.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65057867A | 1967-07-03 | 1967-07-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1202992A true GB1202992A (en) | 1970-08-26 |
Family
ID=24609466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3172868A Expired GB1202992A (en) | 1967-07-03 | 1968-07-03 | Process for electro depositing low oxygen copper |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1771747A1 (en) |
| FR (1) | FR1573438A (en) |
| GB (1) | GB1202992A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9243339B2 (en) | 2012-05-25 | 2016-01-26 | Trevor Pearson | Additives for producing copper electrodeposits having low oxygen content |
-
1968
- 1968-07-02 FR FR1573438D patent/FR1573438A/fr not_active Expired
- 1968-07-03 DE DE19681771747 patent/DE1771747A1/en active Pending
- 1968-07-03 GB GB3172868A patent/GB1202992A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9243339B2 (en) | 2012-05-25 | 2016-01-26 | Trevor Pearson | Additives for producing copper electrodeposits having low oxygen content |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1771747A1 (en) | 1972-01-13 |
| FR1573438A (en) | 1969-07-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |