GB648528A - Improvements in and relating to the treatment of metal sulphates - Google Patents
Improvements in and relating to the treatment of metal sulphatesInfo
- Publication number
- GB648528A GB648528A GB3325948A GB3325948A GB648528A GB 648528 A GB648528 A GB 648528A GB 3325948 A GB3325948 A GB 3325948A GB 3325948 A GB3325948 A GB 3325948A GB 648528 A GB648528 A GB 648528A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphate
- relating
- treatment
- roasting
- furnace
- 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
- 150000003467 sulfuric acid derivatives Chemical class 0.000 title abstract 2
- 239000002184 metal Substances 0.000 title 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 150000004684 trihydrates Chemical class 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
Classifications
-
- 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
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
- C01B17/745—Preparation from sulfates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/14—Methods for preparing oxides or hydroxides in general
- C01B13/18—Methods for preparing oxides or hydroxides in general by thermal decomposition of compounds, e.g. of salts or hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Metal oxides are produced by partially dehydrating the hydrated sulphate, e.g. ferrous, zinc, or copper sulphate, by introducing it, in crystalline form, into suspension in a heated gas, and thereafter subjecting it to a higher temperature to decompose it to the oxide. The degree of dehydration may correspond with the trihydrate, so as to ensure that the material does not fuse or coalesce in the later heat treatment. A suitable drying plant is disclosed in Specification 592,354, [Group XIII]. A rotary furnace or kiln or multi-hearth (Herreshoff) furnace may be used for the roasting, a temperature of 600-1000 DEG C. being suitable. Carbon may be added to the partially dehydrated sulphate before roasting. Specification 510,733 also is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3325948A GB648528A (en) | 1948-12-24 | 1948-12-24 | Improvements in and relating to the treatment of metal sulphates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3325948A GB648528A (en) | 1948-12-24 | 1948-12-24 | Improvements in and relating to the treatment of metal sulphates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB648528A true GB648528A (en) | 1951-01-03 |
Family
ID=10350607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3325948A Expired GB648528A (en) | 1948-12-24 | 1948-12-24 | Improvements in and relating to the treatment of metal sulphates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB648528A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1178406B (en) * | 1957-04-10 | 1964-09-24 | British Titan Products | Process for the production of gases containing sulfur dioxide by sedimentation of iron sulfate |
| DE1181179B (en) * | 1961-04-22 | 1964-11-12 | Bayer Ag | Process for the production of gases containing sulfur dioxide |
| DE2940151A1 (en) * | 1978-10-04 | 1980-08-21 | Thann & Mulhouse | METHOD FOR PRODUCING IRON OXIDE PIGMENTS FROM IRON (II) SULFATE RESIDUE, AND FE LOW 2 0 LOW 3 PIGMENTS PRODUCED BY THE METHOD |
-
1948
- 1948-12-24 GB GB3325948A patent/GB648528A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1178406B (en) * | 1957-04-10 | 1964-09-24 | British Titan Products | Process for the production of gases containing sulfur dioxide by sedimentation of iron sulfate |
| DE1181179B (en) * | 1961-04-22 | 1964-11-12 | Bayer Ag | Process for the production of gases containing sulfur dioxide |
| DE2940151A1 (en) * | 1978-10-04 | 1980-08-21 | Thann & Mulhouse | METHOD FOR PRODUCING IRON OXIDE PIGMENTS FROM IRON (II) SULFATE RESIDUE, AND FE LOW 2 0 LOW 3 PIGMENTS PRODUCED BY THE METHOD |
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