| abstract |
REFERS TO A METHOD TO ELIMINATE THE DUST FROM A MINE, WHERE THE MINERAL OBTAINED IS TREATED WITH A SOLUTION TO LEACH FOLLOWED BY AN EXTRACTION BY SOLVENTS, WHICH INCLUDES WETTING THE DUST WITH A WATERY MIXTURE CONTAINING: A) AT LEAST 10 ppm UP TO 1000 ppm, OF ALKYL POLYGLUCOSIDE, WITH A DEGREE OF POLYMERIZATION OF 1.4 TO 1.6; WHERE, THE RENTAL GROUP CONTAINS AN AVERAGE OF 8 TO 12 CARBON ATOMS, OF FORMULA R1O (Z) a, R1 BEING A MONOVALENT RADICAL ALKYL, Z A RESIDUE OF GLUCOSE, AND A NUMBER BETWEEN 1.4 AND 1.6; AND, B) A HYDROPHILE BINDING MATERIAL. WHERE THE AQUEOUS MIXTURE PRODUCES LITTLE FOAM AND IS COMPATIBLE WITH THE SOLVENT EXTRACTION PROCESS |