GB170082A - Process for the production of zinc oxide suitable for metallurgical treatment for gypseous precipitates - Google Patents
Process for the production of zinc oxide suitable for metallurgical treatment for gypseous precipitatesInfo
- Publication number
- GB170082A GB170082A GB19959/20A GB1995920A GB170082A GB 170082 A GB170082 A GB 170082A GB 19959/20 A GB19959/20 A GB 19959/20A GB 1995920 A GB1995920 A GB 1995920A GB 170082 A GB170082 A GB 170082A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zinc
- sulphate
- sodium
- chloride
- gypseous
- 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
- C22B19/22—Obtaining zinc otherwise than by distilling with leaching with 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Gypseous zinc precipitates resulting from the treatment of zinc liquors containing sulphate, with lime, are freed substantially from their sulphur content by heating and stirring the precipitate suspended in a solution containing zinc chloride and sodium or calcium chloride, and calcining the resulting basic zinc sulphate after washing with water to free it from calcium chloride &c. The zinc chloride should be approximately equivalent to the sulphate present, and may be added from external sources, or may be prepared in situ by means of the sodium or calcium chloride. Alternatively the process may be carried out during the precipitation of the gypseous zinc hydrate. Dilute milk of lime is slowly added to the zinc liquor heated for example to about 70 DEG C., to which has been added sodium or calcium chloride. If the liquor has a high sulphate content it may be reduced prior to the above treatment by adding sodium chloride and crystallizing out the resulting Glauber's salt. High concentration of zinc and of neutral salts such as sodium and calcium chlorides facilitate the formation of the basic sulphate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB19959/20A GB170082A (en) | 1920-07-09 | 1920-07-09 | Process for the production of zinc oxide suitable for metallurgical treatment for gypseous precipitates |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB19959/20A GB170082A (en) | 1920-07-09 | 1920-07-09 | Process for the production of zinc oxide suitable for metallurgical treatment for gypseous precipitates |
Publications (1)
Publication Number | Publication Date |
---|---|
GB170082A true GB170082A (en) | 1921-10-10 |
Family
ID=10137970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19959/20A Expired GB170082A (en) | 1920-07-09 | 1920-07-09 | Process for the production of zinc oxide suitable for metallurgical treatment for gypseous precipitates |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB170082A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2090271A1 (en) * | 1970-05-25 | 1972-01-14 | Electrolyt Zinc Australasia |
-
1920
- 1920-07-09 GB GB19959/20A patent/GB170082A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2090271A1 (en) * | 1970-05-25 | 1972-01-14 | Electrolyt Zinc Australasia |
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