GB384714A - Improvements in or relating to the catalytic production of amines from alcohols and a - Google Patents
Improvements in or relating to the catalytic production of amines from alcohols and aInfo
- Publication number
- GB384714A GB384714A GB24112/31A GB2411231A GB384714A GB 384714 A GB384714 A GB 384714A GB 24112/31 A GB24112/31 A GB 24112/31A GB 2411231 A GB2411231 A GB 2411231A GB 384714 A GB384714 A GB 384714A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gel
- oxide
- contact mass
- silica gel
- prepared
- 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
Landscapes
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Amines are prepared by passing an aliphatic alcohol and ammonia at a raised temperature, e.g. 250-500 DEG C. over a contact mass comprising a porous rigid gel impregnated with an oxide acting as a dehydrating catalyst. The gel may be silica gel, alumina gel, or chromium oxide gel, and the oxide with which the gel is impregnated may be alumina, thoria or oxide of boron, tungsten or titanium. The contact mass may be prepared by adding to the gel, after or in the course of its preparation, the dehydrating oxide or a compound convertible into such oxide. In the examples, (1) silica gel is evacuated at 400 DEG C., cooled in vacuo, immersed in aluminium nitrate solution, dried, and ignited at 400 DEG C.; a mixture of butanol vapour and ammonia is passed at 325 DEG C. over the contact mass so prepared, yielding butylamines and a little butylene; the yields are compared with those obtained when an unsupported aluminium phosphate catalyst is used; (2) methanol vapour and ammonia are passed at 340 DEG C. over the contact mass described in example 1, yielding methylamines and a little dimethyl ether; (3) a contact mass comprising boron trioxide supported on silica gel is prepared, as in example 1, from silica gel and ammonium borate; methanol vapour and ammonia are passed over the contact mass at 350 DEG C., yielding methylamines. Specification 355,867 is referred to.ALSO:A contact mass for the manufacture of amines from aliphatic alcohols and ammonia comprises a porous rigid gel impregnated with an oxide acting as a dehydrating catalyst. The gel may be silica gel, alumina gel, or chromium oxide gel, and the oxide with which the gel is impregnated may be alumina, thoria, or oxide of boron, tungsten or titanium. The contact mass may be prepared by adding to the gel, after or in the course of its preparation, the dehydrating oxide or a compound covertible into such oxide. In the examples (1) silica gel is evacuated at 400 DEG C., cooled in vacuo, immersed in aluminium nitrate solution, dried, and ignited at 400 DEG C.; (2) a contact mass comprising boron trioxide supported on silica gel is prepared, as in example (1), from silica gel and ammonium borate. Specification 355,867 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US384714XA | 1930-08-27 | 1930-08-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB384714A true GB384714A (en) | 1932-12-15 |
Family
ID=21900159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB24112/31A Expired GB384714A (en) | 1930-08-27 | 1931-08-27 | Improvements in or relating to the catalytic production of amines from alcohols and a |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB384714A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2450676A (en) * | 1946-08-29 | 1948-10-05 | Socony Vacuum Oil Co Inc | Production of nitriles |
US5254270A (en) * | 1991-03-13 | 1993-10-19 | Rewo Chemische Werke Gmbh | Fabric softeners based on quaternary poly(oxyalkylene) alkanolamine esters |
US5703035A (en) * | 1994-02-23 | 1997-12-30 | Witco Surfactants Gmbh | Highly concentrated aqueous fabric softners having improved storage stability |
DE102007056525A1 (en) | 2007-11-22 | 2009-10-08 | Henkel Ag & Co. Kgaa | Polyoxyalkylenamine for improved perfume yield |
-
1931
- 1931-08-27 GB GB24112/31A patent/GB384714A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2450676A (en) * | 1946-08-29 | 1948-10-05 | Socony Vacuum Oil Co Inc | Production of nitriles |
US5254270A (en) * | 1991-03-13 | 1993-10-19 | Rewo Chemische Werke Gmbh | Fabric softeners based on quaternary poly(oxyalkylene) alkanolamine esters |
US5703035A (en) * | 1994-02-23 | 1997-12-30 | Witco Surfactants Gmbh | Highly concentrated aqueous fabric softners having improved storage stability |
DE102007056525A1 (en) | 2007-11-22 | 2009-10-08 | Henkel Ag & Co. Kgaa | Polyoxyalkylenamine for improved perfume yield |
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