GB200760A - Improvements in or relating to the recovery of alkali thiosulphates from solutions - Google Patents
Improvements in or relating to the recovery of alkali thiosulphates from solutionsInfo
- Publication number
- GB200760A GB200760A GB3184822A GB3184822A GB200760A GB 200760 A GB200760 A GB 200760A GB 3184822 A GB3184822 A GB 3184822A GB 3184822 A GB3184822 A GB 3184822A GB 200760 A GB200760 A GB 200760A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crystals
- alkali
- thiosulphate
- carbonates
- thiosulphates
- 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
- 239000003513 alkali Substances 0.000 title abstract 5
- 150000004764 thiosulfuric acid derivatives Chemical class 0.000 title abstract 3
- 238000011084 recovery Methods 0.000 title 1
- 239000013078 crystal Substances 0.000 abstract 7
- 239000012452 mother liquor Substances 0.000 abstract 5
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 abstract 5
- 150000004649 carbonic acid derivatives Chemical class 0.000 abstract 4
- 150000001447 alkali salts Chemical class 0.000 abstract 2
- -1 carbonates Chemical class 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- BZWKPZBXAMTXNQ-UHFFFAOYSA-N sulfurocyanidic acid Chemical class OS(=O)(=O)C#N BZWKPZBXAMTXNQ-UHFFFAOYSA-N 0.000 abstract 2
- 238000009835 boiling Methods 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
- C01B17/64—Thiosulfates; Dithionites; Polythionates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Liquors containing alkali thiosulphates and other less soluble alkali salts such as carbonates, which may be products of gas purifying processes such as those described in Specifications 169,996, 170,572, [both in Class 55 (ii), Gas manufacture &c.], and 209,169, are evaporated until the boiling-point reaches 120 DEG C. at atmospheric pressure when the salts such as alkali carbonates separate and the crystals are removed in a centrifugal apparatus. The solution is then cooled to obtain crystals of thiosulphate. The mother-liquor may be further concentrated to obtain a second crop of thiosulphate crystals; the final mother-liquor contains sulphocyanides.ALSO:Liquors containing alkali thiosulphates and other less soluble alkali salts such as carbonates, which may be products of gas-purifying processes such as those described in Specifications 169,996 and 170,572, [both in Class 55 (ii), Gas manufacture &c.], and 209,169, are evaporated until the boiling point reaches 120 DEG C. at atmospheric pressure, when the salts such as alkali carbonates separate, and the crystals are received in a centrifugal apparatus. The solution is then cooled to obtain crystals of thiosulphate. The mother liquor may be further concentrated to obtain a second crop of thiosulphate crystals; the final mother liquor contains sulphocyanides. The thiosulphate crystals are washed and recrystallized, the mother liquor being returned to the evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3184822A GB200760A (en) | 1922-11-21 | 1922-11-21 | Improvements in or relating to the recovery of alkali thiosulphates from solutions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3184822A GB200760A (en) | 1922-11-21 | 1922-11-21 | Improvements in or relating to the recovery of alkali thiosulphates from solutions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB200760A true GB200760A (en) | 1923-07-19 |
Family
ID=10329295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3184822A Expired GB200760A (en) | 1922-11-21 | 1922-11-21 | Improvements in or relating to the recovery of alkali thiosulphates from solutions |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB200760A (en) |
-
1922
- 1922-11-21 GB GB3184822A patent/GB200760A/en not_active Expired
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