FLOTATION PROCESS OF LEAD-, COPPER-, URANIUM- AND RARE EARTH MINERALS

摘要

PROCESS FOR FLOTATION OF LEAD-, COPPER-,URANIUM-, AND RARE EARTH-TYPE MINERALS ANDORES AND FLOTATION AGENTS THEREFORABSTRACT OF THE DISCLOSUREA process and flotation agents are provided for flotation of lead-,uranium-, and rare earth-type minerals and ores in which an aqueous pulpof the mineral or ore is subjected to a froth flotation, characterized in thatthe flotation is performed in the presence of a tertiary amine flotation agenthaving the general formula:wherein:R is a aliphatic hydrocarbon group having from about six to abouttwenty four carbon atoms;A is an oxyalkylene group having from about two to about four carbonatoms;X is selected from the group consisting of hydrogen and hydroxyl;m is a number within the range from 0 to about 10;n1 is a number within the range from 1 to about 4;n2 is 1, 2 or 3;x is a number within the range from 0 to about 4;y is 0 or 1;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 sulphideand oxide ores and minerals.