JPS57156445A - Method for treating nitric acid vapor and nitrogen oxide gas containing tetranitoromethane - Google Patents
Method for treating nitric acid vapor and nitrogen oxide gas containing tetranitoromethaneInfo
- Publication number
- JPS57156445A JPS57156445A JP4355181A JP4355181A JPS57156445A JP S57156445 A JPS57156445 A JP S57156445A JP 4355181 A JP4355181 A JP 4355181A JP 4355181 A JP4355181 A JP 4355181A JP S57156445 A JPS57156445 A JP S57156445A
- Authority
- JP
- Japan
- Prior art keywords
- nitric acid
- nitrogen oxide
- oxide gas
- vapor
- gas containing
- 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.)
- Pending
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To recover a mixture of tertanitromethane, nitric acid vapor and nitrogen oxide gas obtained by the nitration of anthraquinone compound, safely as an industrially useful alkali nitrate, without separating each component of the mixture.
CONSTITUTION: An anthraquinone compound is nitrated with nitric acid or a mixture of nitric acid and sulfuric acid. Tetranitromethane, which is produced by the reaction as a by-product, is separated to the vapor phase by the stripping with air, oxygen or inert gas, to obtain nitric acid vapor and nitrogen oxide gas containing tetranitromethane. The product is treated with an alkali solution, mixed with nitric acid, and at the same time, air, oxygen or inert gas is introduced to the system to effect the decomposition and stripping. The produced vapor component is introduced again into the alkaline absorption system to neutralize the decomposed liquid with an alkali, and recover as the alkali nitrate. The nitration product of anthraquinone compound is useful as an intermediate of dye.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4355181A JPS57156445A (en) | 1981-03-24 | 1981-03-24 | Method for treating nitric acid vapor and nitrogen oxide gas containing tetranitoromethane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4355181A JPS57156445A (en) | 1981-03-24 | 1981-03-24 | Method for treating nitric acid vapor and nitrogen oxide gas containing tetranitoromethane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57156445A true JPS57156445A (en) | 1982-09-27 |
Family
ID=12666883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4355181A Pending JPS57156445A (en) | 1981-03-24 | 1981-03-24 | Method for treating nitric acid vapor and nitrogen oxide gas containing tetranitoromethane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57156445A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5589037A (en) * | 1995-10-24 | 1996-12-31 | General Electric Company | Method for removing tetranitromethane from nitric acid |
| US5847240A (en) * | 1997-03-24 | 1998-12-08 | Arco Chemical Technology, L.P. | Process for reducing tetranitromethane in compositions containing nitroaromatic compounds |
| CN109438246A (en) * | 2018-09-27 | 2019-03-08 | 青岛海湾精细化工有限公司 | A kind of processing method and processing system of anthraquinone |
-
1981
- 1981-03-24 JP JP4355181A patent/JPS57156445A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5589037A (en) * | 1995-10-24 | 1996-12-31 | General Electric Company | Method for removing tetranitromethane from nitric acid |
| US5847240A (en) * | 1997-03-24 | 1998-12-08 | Arco Chemical Technology, L.P. | Process for reducing tetranitromethane in compositions containing nitroaromatic compounds |
| CN109438246A (en) * | 2018-09-27 | 2019-03-08 | 青岛海湾精细化工有限公司 | A kind of processing method and processing system of anthraquinone |
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