JPS55104246A - Quenching and extraction of olefinic unsaturated nitrile reaction gas - Google Patents
Quenching and extraction of olefinic unsaturated nitrile reaction gasInfo
- Publication number
- JPS55104246A JPS55104246A JP1111179A JP1111179A JPS55104246A JP S55104246 A JPS55104246 A JP S55104246A JP 1111179 A JP1111179 A JP 1111179A JP 1111179 A JP1111179 A JP 1111179A JP S55104246 A JPS55104246 A JP S55104246A
- Authority
- JP
- Japan
- Prior art keywords
- olefinic unsaturated
- unsaturated nitrile
- quenching
- absorber
- fed
- 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.)
- Granted
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To reduce the load on the absorber in quenching the reaction gas obtained from ammoxidation of propylene, by taking a liquid with the maximum concentration of an olefinic unsaturated nitrile from a specific point of the quencher.
CONSTITUTION: The reaction mixture gas containing an olefinic unsaturated nitrile, e.g. acrylonitrile, obtained from ammoxidation of propylene or isobutylene is fed from the line 2 into the quencher 1 to remove the ammonia substantially. The gas containing the olefinic unsaturated nitrile is fed to the absorber. The liquid in the column is partly taken from the line 8 at the tray m with the maximum nitrile concentration, and fed into the extractive distillation column directly without passing through the absorber 9. Thus, the amount of circulating water and the quantity for heating it can be saved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1111179A JPS55104246A (en) | 1979-02-02 | 1979-02-02 | Quenching and extraction of olefinic unsaturated nitrile reaction gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1111179A JPS55104246A (en) | 1979-02-02 | 1979-02-02 | Quenching and extraction of olefinic unsaturated nitrile reaction gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55104246A true JPS55104246A (en) | 1980-08-09 |
| JPS6144861B2 JPS6144861B2 (en) | 1986-10-04 |
Family
ID=11768890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1111179A Granted JPS55104246A (en) | 1979-02-02 | 1979-02-02 | Quenching and extraction of olefinic unsaturated nitrile reaction gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55104246A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996026917A1 (en) * | 1995-02-28 | 1996-09-06 | Asahi Kasei Kogyo Kabushiki Kaisha | Process for producing acrylonitrile |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0520352U (en) * | 1991-08-23 | 1993-03-12 | 日本デンヨー株式会社 | LED lamp |
| JPH08162673A (en) * | 1994-11-30 | 1996-06-21 | Rohm Co Ltd | Light emitting diode lamp |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3649179A (en) * | 1967-11-13 | 1972-03-14 | Nitto Chemical Industry Co Ltd | Process for the removal of unreacted ammonia |
-
1979
- 1979-02-02 JP JP1111179A patent/JPS55104246A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3649179A (en) * | 1967-11-13 | 1972-03-14 | Nitto Chemical Industry Co Ltd | Process for the removal of unreacted ammonia |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996026917A1 (en) * | 1995-02-28 | 1996-09-06 | Asahi Kasei Kogyo Kabushiki Kaisha | Process for producing acrylonitrile |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6144861B2 (en) | 1986-10-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BG51249A3 (en) | Method for the reduction the quantity of polymercontaining waste flows | |
| KR830009004A (en) | Hydrocyanation of Olefin | |
| JPS55104246A (en) | Quenching and extraction of olefinic unsaturated nitrile reaction gas | |
| GB1440402A (en) | Process for separating methacrolein | |
| GB630884A (en) | Improvements in and relating to the absorption and separation of vapours and gases | |
| GB1350486A (en) | Recovery of olefinic nitriles | |
| JPS55104243A (en) | Purification of olefinic unsaturated nitrile | |
| JPS57108041A (en) | Distilling and separating method of methylamine | |
| JPS5421054A (en) | Biological method of removing nitrogen | |
| JPS5456076A (en) | Reducing method for nonvolatile impurities contained in liquid during evaporation | |
| JPS5683421A (en) | Extractive distillation process | |
| JPS5340737A (en) | Preparation of cyanophenol | |
| JPS55115858A (en) | Recovery and purification of unsaturated nitrile | |
| JPS5511531A (en) | Preparation of alkylamine | |
| JPS57165359A (en) | Preparation of unsaturated nitrile | |
| JPS53113080A (en) | Purification of urokinase | |
| JPS542976A (en) | Gas-liquid contact apparatus | |
| JPS5359645A (en) | Preparation of benzonitriles | |
| JPS55104245A (en) | Purification of crude hydrogen cyanide-containing olefinic unsaturated nitrile | |
| JPS53111001A (en) | Separation of mixture of hydrocarbons | |
| JPS53149901A (en) | Preparation of methacrolein and 1,3-butadiene | |
| JPS5254612A (en) | Steel for large heatinput welding | |
| JPS53121713A (en) | Separation of butanediol | |
| GB873890A (en) | Improvements in or relating to ammonia stills | |
| JPS52138078A (en) | Removal of nox by absorption |