Certain benzoxazoles and the use thereof as metal extractants
US4020081A · kind A · utility
4Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1974 |
| Grant date | Apr 26, 1977 |
| Priority date | — |
| Expiry date | Oct 25, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/14
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Benzoxazoles having the structure ##STR1## where R is hydrogen or an alkyl group having from 1 to 20 carbon atoms, R' is hydrogen, chlorine or an alkyl group containing from 1 to 20 carbon atoms, X is H or Chlorine and the total number of carbon atoms in R and R' is 6 to 40 with the proviso that one of R and R' must be an alkyl group of at least 6 carbon atoms. The benzoxazoles are useful in a process of recovering metal values, particularly copper and nickel, from aqueous solutions thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.