Process for producing metal salts of oil-soluble organosulfonic acids
US4164474A · kind A · utility
11Cited by
6References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1976 |
| Grant date | Aug 14, 1979 |
| Priority date | — |
| Expiry date | Oct 27, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2010/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An improved process for producing metal salts of organosulfonic acids comprises reacting the sulfonic acid with a slight excess of the corresponding metal carbonate until the carbonate/acid equilibrium point is reached, i.e., the pH of a substantially carbonate- and bicarbonate-free sample stabilizes in the range of 6.0 to 6.38, and then adding a very small amount of stronger base to effect complete neutralization of the remainder of the sulfonic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.