Chemical process
US4100188A · kind A · utility
3Cited by
2References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 27, 1972 |
| Grant date | Jul 11, 1978 |
| Priority date | — |
| Expiry date | Apr 27, 1992 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/2089
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
It is disclosed that water soluble salts of carboxyalkoxy succinic acids are obtained in solid form by crystallization from mixed solvent systems wherein the solvents are water plus a lower alkanol having up to about six carbon atoms per molecule. A particularly preferred alkanol is methanol. The selective production of salts containing various amounts of water of hydration is possible by controlling the ratio of water to alcohol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.