Patent ID: 6225261
Filing Date: 2001-05-01
Classification: C09K,Y10S

Abstract:
A method of controlling the percipitation of sulfides from a acidic solution containing sulfides comprising:contacting said acidic solution containing sulfides with a sulfide reactant wherein said sulfide reactant is selected from the group consisting of compounds of the following general formulae: ##STR6##and mixtures thereof; whereinR.sub.1, and R.sub.2 are independently alkyl and cycloalkyl groups having in the range of 1 to 6 carbon atoms per group, and benzyl groups,R.sub.3, R.sub.4 and R.sub.5 are independentyl hydrogen, alkyl or cycloalkyl groups having in the range of 1 to 6 carbon atoms per group and benzyl groupsR.sub.6 and R.sub.7 are methylene groups having 1 to 3 carbon atoms per group,R.sub.8, R.sub.9, R.sub.10, R.sub.11 and R.sub.2 are independently hydrogen and alkyl groups having in the range of 1 to 3 carbon atoms per group,n is an integer having a value from 0 to 3, and m is an integer having a value from 0 to 4.