GB348776A - A process for the manufacture and production of sodium hydrosulphite and pure zinc oxide or pure zinc carbonate - Google Patents
A process for the manufacture and production of sodium hydrosulphite and pure zinc oxide or pure zinc carbonateInfo
- Publication number
- GB348776A GB348776A GB854730A GB854730A GB348776A GB 348776 A GB348776 A GB 348776A GB 854730 A GB854730 A GB 854730A GB 854730 A GB854730 A GB 854730A GB 348776 A GB348776 A GB 348776A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zinc
- carbonate
- pure zinc
- sulphur dioxide
- excess
- 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
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
- C01D5/14—Preparation of sulfites
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/64—Thiosulfates; Dithionites; Polythionates
- C01B17/66—Dithionites or hydrosulfites (S2O42-)
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G9/00—Compounds of zinc
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G9/00—Compounds of zinc
- C01G9/02—Oxides; Hydroxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
To the aqueous reaction mixtures of equivalent quantities of zinc dust and sulphur dioxide is added at least 1 per cent (by weight of the zinc dust employed) of zinc oxide, zinc dust, or zinc carbonate, the resulting solution of zinc hydrosulphite being filtered, and then treated with an excess of caustic soda or sodium carbonate, in which latter case the zinc carbonate formed is heated to form zinc oxide. The excess zinc or zinc compound may be added before, during or after the main reaction, or a little sodium hydroxide or carbonate may be added before filtration of the solution obtained from equivalent quantities of zinc dust and sulphur dioxide. The quantity of sulphur dioxide employed in practice is usually slightly in excess of the quantity theoretically required, since the zinc dust usually contains impurities which consume some sulphur dioxide. Examples of the process are given.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB854730A GB348776A (en) | 1930-03-17 | 1930-03-17 | A process for the manufacture and production of sodium hydrosulphite and pure zinc oxide or pure zinc carbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB854730A GB348776A (en) | 1930-03-17 | 1930-03-17 | A process for the manufacture and production of sodium hydrosulphite and pure zinc oxide or pure zinc carbonate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB348776A true GB348776A (en) | 1931-05-21 |
Family
ID=9854549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB854730A Expired GB348776A (en) | 1930-03-17 | 1930-03-17 | A process for the manufacture and production of sodium hydrosulphite and pure zinc oxide or pure zinc carbonate |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB348776A (en) |
-
1930
- 1930-03-17 GB GB854730A patent/GB348776A/en not_active Expired
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