Process for preparing aluminum ethyl phosphite
US4143059A · kind A · utility
3Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1977 |
| Grant date | Mar 6, 1979 |
| Priority date | — |
| Expiry date | Nov 15, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/142
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Aluminum ethyl phosphite, useful as a plant fungicide, is made in an industrial process in high yield and good quality by reacting an excess of a ternary mixture of diethyl phosphite, monoethyl phosphite and phosphoric acid, with alumina at 20-200.degree. C. under subatmospheric pressure, while eliminating water formed during the reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.