ES391457A1 - Process for the recovery of acrylonitrile from aqueous solutions - Google Patents
Process for the recovery of acrylonitrile from aqueous solutionsInfo
- Publication number
- ES391457A1 ES391457A1 ES391457A ES391457A ES391457A1 ES 391457 A1 ES391457 A1 ES 391457A1 ES 391457 A ES391457 A ES 391457A ES 391457 A ES391457 A ES 391457A ES 391457 A1 ES391457 A1 ES 391457A1
- Authority
- ES
- Spain
- Prior art keywords
- acrylonitrile
- recovery
- aqueous solutions
- ammonium salt
- distillation column
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/32—Separation; Purification; Stabilisation; Use of additives
- C07C253/34—Separation; Purification
Abstract
A method of recovering acrylonitrile from an aqueous ammonium salt solution contaminated with a small proportion of acrylonitrile, comprising distilling or fractionating said aqueous ammonium salt solution in a distillation column, and controlling the pH of said solution in the distillation column to a value of 5 or less. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7007496A NL7007496A (en) | 1970-05-23 | 1970-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES391457A1 true ES391457A1 (en) | 1973-06-16 |
Family
ID=19810141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES391457A Expired ES391457A1 (en) | 1970-05-23 | 1971-05-22 | Process for the recovery of acrylonitrile from aqueous solutions |
Country Status (12)
| Country | Link |
|---|---|
| AT (1) | AT307379B (en) |
| BE (1) | BE767480A (en) |
| BR (1) | BR7103115D0 (en) |
| CA (1) | CA944713A (en) |
| DE (1) | DE2124974A1 (en) |
| ES (1) | ES391457A1 (en) |
| FR (1) | FR2093577A5 (en) |
| GB (1) | GB1335226A (en) |
| NL (1) | NL7007496A (en) |
| NO (1) | NO136751C (en) |
| SE (1) | SE384674B (en) |
| ZA (1) | ZA713177B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2517300A1 (en) * | 1975-04-18 | 1976-10-28 | Standard Oil Co Ohio | Recovery and purificn of (meth)acrylonitrile - with recycle of aq. quench stream in ammoxidn process |
-
1970
- 1970-05-23 NL NL7007496A patent/NL7007496A/xx unknown
-
1971
- 1971-05-17 ZA ZA713177A patent/ZA713177B/en unknown
- 1971-05-18 GB GB1555171*[A patent/GB1335226A/en not_active Expired
- 1971-05-19 DE DE19712124974 patent/DE2124974A1/de not_active Withdrawn
- 1971-05-19 AT AT435271A patent/AT307379B/en active
- 1971-05-21 BR BR3115/71A patent/BR7103115D0/en unknown
- 1971-05-21 SE SE7106599A patent/SE384674B/en unknown
- 1971-05-21 FR FR7118435A patent/FR2093577A5/fr not_active Expired
- 1971-05-21 NO NO1923/71A patent/NO136751C/en unknown
- 1971-05-21 BE BE767480A patent/BE767480A/en unknown
- 1971-05-21 CA CA113,616A patent/CA944713A/en not_active Expired
- 1971-05-22 ES ES391457A patent/ES391457A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA944713A (en) | 1974-04-02 |
| NL7007496A (en) | 1971-11-25 |
| NO136751C (en) | 1977-11-02 |
| BE767480A (en) | 1971-11-22 |
| FR2093577A5 (en) | 1972-01-28 |
| AT307379B (en) | 1973-05-25 |
| NO136751B (en) | 1977-07-25 |
| BR7103115D0 (en) | 1973-04-19 |
| GB1335226A (en) | 1973-10-24 |
| SE384674B (en) | 1976-05-17 |
| DE2124974A1 (en) | 1971-12-09 |
| ZA713177B (en) | 1972-04-26 |
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