Ore flotation and di-alkali metal-di(carboxyalkyl)dithiocarbamate and diammonium-di(carboxyalkyl)dithiocarbamate flotation agents for use therein
US4702821A · kind A · utility
6Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1985 |
| Grant date | Oct 27, 1987 |
| Priority date | — |
| Expiry date | Feb 26, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D2203/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Carboxyalkyl dithiocarbamates which can be characterized by the formula ##STR1## wherein R is selected from the group consisting of alkylene radicals, wherein R' is selected from the group consisting of hydrogen and methyl and ethyl radicals, R.sup.2 is selected from the group consisting of alkylene radicals and wherein M is selected from the group consisting of ammonium and alkali metal atoms, their use as ore flotation depressants, and a process for making these novel compositions are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.