SU688426A1 - Method of purification of spent sulfuric acid from organic impurities - Google Patents
Method of purification of spent sulfuric acid from organic impuritiesInfo
- Publication number
- SU688426A1 SU688426A1 SU782601668A SU2601668A SU688426A1 SU 688426 A1 SU688426 A1 SU 688426A1 SU 782601668 A SU782601668 A SU 782601668A SU 2601668 A SU2601668 A SU 2601668A SU 688426 A1 SU688426 A1 SU 688426A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- purification
- sulfuric acid
- organic impurities
- spent sulfuric
- spent
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
3 3.Способ по п. 1, отличающийс тем, что натриевую соль ввод т в предварительную сконцентрированную до 50-70% серную кислоту. 4.Способ по п. 1, отличающийс тем,5 что очистку целевого продукта ведут при 120-140°С. 4 Источники информации, прин тые во внимание при экспертизе 1- Авторское свидетельство СССР № 552290, кл. С 01В 17/90, 1975. 2. Патент Франции № 2223303, кл. С 01В 17/90, 1974.3 3. A method according to claim 1, characterized in that the sodium salt is introduced into a preliminary concentrated sulfuric acid of 50-70%. 4. A method according to claim 1, characterized in that 5 that the purification of the target product is carried out at 120-140 ° C. 4 Sources of information taken into account in the examination of 1- USSR Copyright Certificate No. 552290, cl. From 01B to 17/90, 1975. 2. Patent of France No. 2223303, cl. From 01B to 17/90, 1974.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782601668A SU688426A1 (en) | 1978-04-07 | 1978-04-07 | Method of purification of spent sulfuric acid from organic impurities |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782601668A SU688426A1 (en) | 1978-04-07 | 1978-04-07 | Method of purification of spent sulfuric acid from organic impurities |
Publications (1)
Publication Number | Publication Date |
---|---|
SU688426A1 true SU688426A1 (en) | 1979-09-30 |
Family
ID=20758460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782601668A SU688426A1 (en) | 1978-04-07 | 1978-04-07 | Method of purification of spent sulfuric acid from organic impurities |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU688426A1 (en) |
-
1978
- 1978-04-07 SU SU782601668A patent/SU688426A1/en active
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