GB387569A - Process for regenerating waste sulphuric acid - Google Patents
Process for regenerating waste sulphuric acidInfo
- Publication number
- GB387569A GB387569A GB16181/32A GB1618132A GB387569A GB 387569 A GB387569 A GB 387569A GB 16181/32 A GB16181/32 A GB 16181/32A GB 1618132 A GB1618132 A GB 1618132A GB 387569 A GB387569 A GB 387569A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- sulphuric acid
- concentrated
- nitrogen
- waste
- 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
- 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
- C01B17/90—Separation; Purification
- C01B17/92—Recovery from acid tar or the like, e.g. alkylation acids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
Waste acids obtained in the refining of mineral oils, tar oils, &c. are treated with nitric acid or higher oxides of nitrogen during their concentration in order to recover their sulphuric acid content. The nitric oxide evolved in the process may be converted into nitric acid or higher oxides of nitrogen and returned to the process by absorbing the nitrogen oxides &c. either in the waste acid that is to be concentrated or in a portion of the sulphuric acid that has already been concentrated, and adding this acid to the waste acid to be concentrated.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE387569X | 1932-02-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB387569A true GB387569A (en) | 1933-02-09 |
Family
ID=6371150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16181/32A Expired GB387569A (en) | 1932-02-25 | 1932-06-08 | Process for regenerating waste sulphuric acid |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB387569A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2493823A1 (en) * | 1980-11-13 | 1982-05-14 | Ugine Kuhlmann | PURIFICATION OF RESIDUAL SULFURIC ACIDS FROM ALCOHOL SYNTHESIS |
-
1932
- 1932-06-08 GB GB16181/32A patent/GB387569A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2493823A1 (en) * | 1980-11-13 | 1982-05-14 | Ugine Kuhlmann | PURIFICATION OF RESIDUAL SULFURIC ACIDS FROM ALCOHOL SYNTHESIS |
EP0052548A1 (en) * | 1980-11-13 | 1982-05-26 | Elf Atochem S.A. | Purification of residual sulphuric acids from alcoholic synthesis |
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