GB593851A - Improvements in or relating to the manufacture of acrylonitrile - Google Patents
Improvements in or relating to the manufacture of acrylonitrileInfo
- Publication number
- GB593851A GB593851A GB1522845A GB1522845A GB593851A GB 593851 A GB593851 A GB 593851A GB 1522845 A GB1522845 A GB 1522845A GB 1522845 A GB1522845 A GB 1522845A GB 593851 A GB593851 A GB 593851A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- acrylonitrile
- mercury
- cuprous
- mercuric chloride
- 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 4
- 238000004519 manufacturing process Methods 0.000 title 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 4
- LWJROJCJINYWOX-UHFFFAOYSA-L Mercury(II) chloride Chemical compound Cl[Hg]Cl LWJROJCJINYWOX-UHFFFAOYSA-L 0.000 abstract 3
- 229960002523 mercuric chloride Drugs 0.000 abstract 3
- LELOWRISYMNNSU-UHFFFAOYSA-N Hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 abstract 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 abstract 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 2
- 229910052753 mercury Inorganic materials 0.000 abstract 2
- 150000002731 mercury compounds Chemical class 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- 235000019270 ammonium chloride Nutrition 0.000 abstract 1
- 239000011260 aqueous acid Substances 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 150000001805 chlorine compounds Chemical class 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229920003013 deoxyribonucleic acid Polymers 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 229940100892 mercury compounds Drugs 0.000 abstract 1
- QDHHCQZDFGDHMP-UHFFFAOYSA-N monochloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/18—Preparation of carboxylic acid nitriles by reaction of ammonia or amines with compounds containing carbon-to-carbon multiple bonds other than in six-membered aromatic rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Acrylonitrile is prepared by reacting acetylene with hydrogen cyanide in the presence of an aqueous solution containing a cuprous salt and mercury, for example in the form of a mercury compound. An aqueous acid medium is usually employed containing, for example, cuprous ammonium chloride, hydrochloric acid and mercuric chloride. A solution of cuprous ammonium and cuprous chlorides may be used which is practically saturated at the reaction temperature of 80 DEG C., and contains 1-5 per cent mercuric chloride, 3-5 per cent hydrochloric acid to maintain a pH of 1-2 and, preferably, 5-10 per cent copper powder. This may be heated to 80-95 DEG C. and acetylene dna hydrogen cyanide, desirably in a molar ratio of 3-6 : 1, passed in at a feed rate which may exceed that giving maximum yield in absence of mercury. An inert gas may also be supplied to increase agitation. Acrylonitrile distils as an azeotrope with water. By leading the products to a water-cooled separator connected at the top to two condensers in series, the first cooled to -10 DEG , the second to -70 DEG to -60 DEG C., the lower aqueous layer separating may be returned while the acrylonitrile is led off. Examples give comparative results using catalyst solutions containing 1.25, 2.5 and 5 per cent mercuric chloride, and in the absence of mercury compounds.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB593851A true GB593851A (en) | 1947-10-28 |
Family
ID=1731355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1522845A Expired GB593851A (en) | 1945-06-15 | Improvements in or relating to the manufacture of acrylonitrile |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB593851A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2744926A (en) * | 1951-10-22 | 1956-05-08 | Monsanto Chemicals | Preparation of acrylonitrile |
| DE1034170B (en) * | 1956-05-04 | 1958-07-17 | Buna Chem Werke Veb | Process for the production of acrylic acid nitrile |
-
1945
- 1945-06-15 GB GB1522845A patent/GB593851A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2744926A (en) * | 1951-10-22 | 1956-05-08 | Monsanto Chemicals | Preparation of acrylonitrile |
| DE1034170B (en) * | 1956-05-04 | 1958-07-17 | Buna Chem Werke Veb | Process for the production of acrylic acid nitrile |
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