GB1246281A - Recovery of zinc - Google Patents
Recovery of zincInfo
- Publication number
- GB1246281A GB1246281A GB4470/68A GB447068A GB1246281A GB 1246281 A GB1246281 A GB 1246281A GB 4470/68 A GB4470/68 A GB 4470/68A GB 447068 A GB447068 A GB 447068A GB 1246281 A GB1246281 A GB 1246281A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zinc
- carbonate
- solution
- mixture
- aqueous
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/24—Obtaining zinc otherwise than by distilling with leaching with alkaline solutions, e.g. ammonia
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
1,246,281. Zinc carbonate; zinc sulphate. COURTAULDS Ltd. 28 Jan., 1969 [29 Jan., 1968], No. 4470/68. Heading C1A. Zinc is recovered from an aqueous solution of a zinc salt by adding the solution to an aqueous solution of an alkal metal carbonate or bicarbonate until the pH of the mixture is in the range 6 to 7 forming a precipitate of granular zinc carbonate and leaving zinc ions in solution, then adding an aqueous alkaline solution to the mixture so as to raise the pH to at least 8 to precipitate as the basic carbonate some of the zinc remaining in solution,-which causes the granular carbonate to flocculate and settle. The preferred alkali metal carbonate is sodium carbonate and the aqueous alkaline solution added may be an aqueous solution of sodium carbonate. Before adding the alkaline solution to the mixture, carbon dioxide may be eliminated from it. The aqueous solution of the zinc salt may be the waste spin bath liquor from a viscose spinning process, in which the weight ratio of zinc to H 2 SO 4 is preferably at least 1 : 3. The comparative examples refer to the production of a basic zinc carbonate 3Zn(OH) a 2.- ZnCO 3 by adding the Na 2 CO 3 to the Zn solution and stirring to remove CO 2 , and a basic zinc sulphate 3Zn(OH) 2 ZnSO 4 by the addition of NaOH to solutions containing zinc sulphate.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4470/68A GB1246281A (en) | 1968-01-29 | 1968-01-29 | Recovery of zinc |
FR6901811A FR2000930A7 (en) | 1968-01-29 | 1969-01-29 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4470/68A GB1246281A (en) | 1968-01-29 | 1968-01-29 | Recovery of zinc |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1246281A true GB1246281A (en) | 1971-09-15 |
Family
ID=9777787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4470/68A Expired GB1246281A (en) | 1968-01-29 | 1968-01-29 | Recovery of zinc |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2000930A7 (en) |
GB (1) | GB1246281A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113816526A (en) * | 2021-09-18 | 2021-12-21 | 武汉钢铁有限公司 | Water quenching water recycling treatment process for cold rolling continuous annealing unit |
-
1968
- 1968-01-29 GB GB4470/68A patent/GB1246281A/en not_active Expired
-
1969
- 1969-01-29 FR FR6901811A patent/FR2000930A7/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113816526A (en) * | 2021-09-18 | 2021-12-21 | 武汉钢铁有限公司 | Water quenching water recycling treatment process for cold rolling continuous annealing unit |
CN113816526B (en) * | 2021-09-18 | 2023-02-28 | 武汉钢铁有限公司 | Water quenching water recycling treatment process for cold rolling continuous annealing unit |
Also Published As
Publication number | Publication date |
---|---|
FR2000930A7 (en) | 1969-09-19 |
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