Froth flotation process employing polyamino methyl phenols

Claim 1

AN IMPROVEMENT IN THE BENEFICIATION OF ORE CONTAINING SILICEOUS MATERIAL BY MEANS OF A FORTH FLOTATION PROCESS CHARACTERIZED BY EMPLOYING AS A COLLECTOR A MEMBER SELECTED FROM THE GROUP CONSISTING OF: (1) ACYLATED, (2) OXYALKYLATED, (3) ACYLATED THEN OXYALKYLATED, (4) OXYALKYLATED THEN ACYLATED, (4) ACYLATED, THEN OXYALKYLATED AND THEN ACYLATED, MONOMERIC POLYAMINOMETHYL PHENOLS CHARACTERIZED BY REACTING A PREFORMED METHYLOL PHENOL HAVING ONE TO FOUR METHYLOL GROUPS IN THE 2,4,6-POSITION WITH A POLYAMINE CONTAINING AT LEAST ONE SECONDARY AMINE GROUP IN AMOUNTS OF AT LEAST ONE MOLE OF SECONDARY POLYAMINE PER EQUIVALENT OF MEETHYLOL GROUP ON THE PHENOL UNTIL ONE MOLE OF WATER PER EQUIVALENT OF METHYLOL GROUP IS REMOVED, IN THE ABSENCE OF AN EXTRANEOUS CATALYST; AND THEN REACTING THE THUS FORMED MONOMERIC POLYAMINOMETHYL PHENOL WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF (1) AND ACYLATION AGENT, (2) AN OXYALKYLATION AGENT, (4) AND OXYALKYLATION THEN AN OXYALKYLATION AGENT, (3) AN ACYLATION THEN AN ACYLATION AGENT, AND (5) AN ACYLATION THEN AN OXYALKYLATION AND THEN ANACYLATION AGENT THE PERFORMED METHYLOL PHENOL HAVING ONLY FUNCTIONAL GROUPS SELECTED FROM THE CLASS CONSISTING OF METHYLOL GROUPS AND PHENOLIC HYDROXYL GROUPS, THE POLYAMINE HAVING ONLY FUNCTIONAL GROUPS SELECTED FROM THE CLASS CONSISTING OF PRIMARY AMINO GROUPS, SECONDARY AMINO GROUPS AND HYDROXYL GROUPS, THE ACYLATION AGENT HAVING UP TO 40 CARBON ATOMS AND BEING SELECTED FROM THE CLASS CONSISTING OF UNSUBSTITUTED CARBOXYLIC ACIDS, UNSUBSTITUTED HYDROXY CARBOXYLIC ACIDS, UNSUBSTITUTED ACYLATED HYDROXY CARBOXYLIC ACIDS, LOWER ALKANOL ESTERS OF UNSUBSTITUTED CARBOXYLIC ACIDS, GLYCERIDES OF UNSUBSTITUTED CARBOXYLIC ACIDS, UNSUBSTITUTED CARBOXYLIC BOXYLIC ACID CHLORIDES AND UNSUBSTITUTED CARBOXYLIC ACID ANHYDRIDES, AND THE OXYALKYLATION AGENT BEING SELECTED FROM THE CLASS CONSISTING OF ALPHA-BETA ALKYLENEOXIDES AND STYRENE OXIDE.