Flotation process of lead-, copper-, uranium- and rare earth minerals
US4070276A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1976 |
| Grant date | Jan 24, 1978 |
| Priority date | — |
| Expiry date | Jan 9, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D2203/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process and flotation agents are provided for flotation of lead-, uranium-, and rare earth-type minerals and ores in which an aqueous pulp of the mineral or ore is subjected to a froth flotation, characterized in that the flotation is performed in the presence of a tertiary amine flotation agent having the general formula: ##STR1## wherein: R is a aliphatic hydrocarbon group having from about six to about twenty four carbon atoms; PA1 A is an oxyalkylene group having from about two to about four carbon atoms; PA1 X is selected from the group consisting of hydrogen and hydroxyl; PA1 m is a number within the range from 0 to about 10; PA1 n .sub.1 is a number within the range from 1 to about 4; PA1 n .sub.2 is 1, 2 or 3; PA1 x is a number within the range from 0 to about 4; PA1 y is 0 or 1; PA1 The sum of m + y being within the range from 1 to about 11; and salts thereof. The process is especially applicable in the flotation of sulphide and oxide ores and minerals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.