ES442836A1 - Improved procedure for the recuperation and purification of acrylonitril or metacrilonitril. (Machine-translation by Google Translate, not legally binding) - Google Patents
Improved procedure for the recuperation and purification of acrylonitril or metacrilonitril. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES442836A1 ES442836A1 ES442836A ES442836A ES442836A1 ES 442836 A1 ES442836 A1 ES 442836A1 ES 442836 A ES442836 A ES 442836A ES 442836 A ES442836 A ES 442836A ES 442836 A1 ES442836 A1 ES 442836A1
- Authority
- ES
- Spain
- Prior art keywords
- methacrylonitrile
- acrylonitrile
- quench
- crude
- ammoxidation
- 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
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 2
- 238000000746 purification Methods 0.000 title abstract 2
- 238000010791 quenching Methods 0.000 abstract 6
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 abstract 5
- 239000007788 liquid Substances 0.000 abstract 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 229910001882 dioxygen Inorganic materials 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 abstract 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
- 230000003134 recirculating effect Effects 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Improved process for the recovery and purification of acrylonitrile or methacrylonitrile produced by the reaction of ammoxidation of propylene or isobutylene, molecular oxygen and ammonia in the presence of an ammoxidation catalyst, which consists of the steps of: (a) contacting the effluent of the ammoxidation reactor with a quench liquid in a rapid quench system to produce a gaseous quench effluent from said quench system having a temperature of about 32ºC to about 110º c: (b) absorbing said gaseous fast quenching tributary in water to form a solution and remove most of the byproducts obtained in the ammoxidation reaction and most of the water from said solution to obtain crude acrylonitrile or crude methacrylonitrile; and (c) distilling the crude acrylonitrile or crude methacrylonitrile to obtain a gaseous stream of acrylonitrile or methacrylonitrile overhead fraction of product quality and a stream of base fractions containing acrylonitrile or methacrylonitrile and impurities, wherein the improvement comprises: recirculating at least part of said liquid stream of bottom fractions obtained in step (c) and employing said liquid stream of bottom fractions as the least part of said quench liquid in step (a). (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES442836A ES442836A1 (en) | 1975-11-20 | 1975-11-20 | Improved procedure for the recuperation and purification of acrylonitril or metacrilonitril. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES442836A ES442836A1 (en) | 1975-11-20 | 1975-11-20 | Improved procedure for the recuperation and purification of acrylonitril or metacrilonitril. (Machine-translation by Google Translate, not legally binding) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES442836A1 true ES442836A1 (en) | 1977-04-01 |
Family
ID=8470402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES442836A Expired ES442836A1 (en) | 1975-11-20 | 1975-11-20 | Improved procedure for the recuperation and purification of acrylonitril or metacrilonitril. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES442836A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117695815A (en) * | 2024-02-05 | 2024-03-15 | 长盛(廊坊)科技有限公司 | PAN-based carbon fiber polymerization liquid single-removal tail gas treatment device and control method |
-
1975
- 1975-11-20 ES ES442836A patent/ES442836A1/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117695815A (en) * | 2024-02-05 | 2024-03-15 | 长盛(廊坊)科技有限公司 | PAN-based carbon fiber polymerization liquid single-removal tail gas treatment device and control method |
| CN117695815B (en) * | 2024-02-05 | 2024-04-16 | 长盛(廊坊)科技有限公司 | PAN-based carbon fiber polymerization liquid single-removal tail gas treatment device and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19921221 |