GB1080741A - Mixing process for nitric and sulphuric acids - Google Patents
Mixing process for nitric and sulphuric acidsInfo
- Publication number
- GB1080741A GB1080741A GB88164A GB88164A GB1080741A GB 1080741 A GB1080741 A GB 1080741A GB 88164 A GB88164 A GB 88164A GB 88164 A GB88164 A GB 88164A GB 1080741 A GB1080741 A GB 1080741A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acids
- heat exchanger
- acid
- h2so4
- mixed
- 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
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
- C01B21/38—Nitric acid
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B43/00—Formation or introduction of functional groups containing nitrogen
- C07B43/02—Formation or introduction of functional groups containing nitrogen of nitro or nitroso groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A mixture of concentrated H2SO4 and HNO3 is obtained by feeding separate streams of HNO3 and H2SO4 or oleum into a stream of the mixed acids circulating through a heat exchanger. 4-10 parts of the mixed acid per part by wt. of the total incoming acids may be recirculated. Product is withdrawn from the circuit after the heat exchanger, and acid fumes may be drawn off and passed into an absorption column in the H2SO4 feed line.ALSO:A continuous discharge mixing apparatus comprises a circuit (including a heat exchanger and a centrifugal pump) into which separate streams of sulphuric and nitric acids are metered and from which the mixed acid is removed. 4-10 parts of the mixed acid per part by wt. of the total incoming acids may be recirculated. The mixed acid is withdrawn after the heat exchanger, and acid fumes may be drawn off and passed into an absorption column in the sulphuric acid feed line.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB88164A GB1080741A (en) | 1964-01-08 | 1964-01-08 | Mixing process for nitric and sulphuric acids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB88164A GB1080741A (en) | 1964-01-08 | 1964-01-08 | Mixing process for nitric and sulphuric acids |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1080741A true GB1080741A (en) | 1967-08-23 |
Family
ID=9712121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB88164A Expired GB1080741A (en) | 1964-01-08 | 1964-01-08 | Mixing process for nitric and sulphuric acids |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1080741A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113184815A (en) * | 2020-10-29 | 2021-07-30 | 江苏方圆芳纶研究院有限公司 | Method for preparing nitrated mixed acid by using nitrogen oxide |
-
1964
- 1964-01-08 GB GB88164A patent/GB1080741A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113184815A (en) * | 2020-10-29 | 2021-07-30 | 江苏方圆芳纶研究院有限公司 | Method for preparing nitrated mixed acid by using nitrogen oxide |
CN113184815B (en) * | 2020-10-29 | 2023-08-15 | 江苏方圆芳纶研究院有限公司 | Method for preparing nitrified mixed acid by using nitrogen oxides |
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