METHOD FOR DETERMINING A RELATIVE DECREASE IN THE CATALYTIC EFFECTIVENESS OF A CATALYST IN A CATALYST SOLUTION

摘要

the present disclosure provides a method for determining a relative decrease in catalytic effectiveness of a catalyst in a test sample of a catalyst solution with unknown catalytic activity. the method includes (a) mixing the test sample with a test solvent to form a test mixture and (b) measuring the temperature rise of the test mixture at predetermined time intervals immediately after forming the test mixture. a predetermined characteristic is used to determine both a test value in the temperature rise measured in (b) and a control value in a known increase in temperature of a control mixture of the test solvent with a control sample of a solution of control catalyst. the relative decrease in catalytic effectiveness of the catalyst in the test sample having the unknown catalytic activity is then determined from: relative decrease in catalytic effectiveness = control value? test value / control value.