Process and apparatus for titrating

Claim 1

A PROCESS FOR CONTINUOUSLY DETERMINING THE AMOUNT OF WATER IN A MATERIAL TO BE EXAMINED WHICH COMRPISES PROVIDING A MEASURING CELL HAVING A PAIR OF GENERATOR ELECTRODES AND A PAIR OF INDICATING ELECTRODES, FEEDING INTO THE CELL A KARL FISCHER REAGENT CONTAINING A MEMBER OF THE GROUP CONSISTING OF IODIDE AND BROMIDE, PROVIDING A VOLTAGE BETWEEN SAID GENERATOR ELECTRODES AND GENERATING BY ANODIC OXIDATION THEREBETWEEN A PRODUCT SELECTED FROM THE GROUP CONSISTING OF IODINE AND BROMINE WHICH REACTS WITH THE WATER TO BE DETERMINED, CONTINUOUSLY PASSING SAID MATERIAL INTO CELL AND MIXING THE SAME WITH SAID GENERATED PRODUCT, THEREAFTER PASSING THE RESULTING MIXTURE PAST SAID INDICATOR ELECTRODES, MEASURING THE CURRENT BETWEEN SAID INDICATOR ELECTRODES AS SAID MIXTURE IS PASSED THEREBY, REGULATING THE CURRENT BETWEEN SAID GENERATOR ELECTRODES AND THE AMOUNT OF PRODUCT GENERATED THEREBY BY MAINTAINING THE CURRENT BETWEENSAID INDICTOR ELECTRODES SUBSTANTIALLY CONSTANT, CONTINUOUSLY REMOVING THE MIXTURE FROM SAID CELL AFTER IT HAS PASSED SAID INDICATOR ELECTRODES, RECYCLING PAST SAID INDICATOR ELECTRODES AT LEAST A PORTION OF THE REMOVED MIXTURE AND CONTINUOUSLY MEASURING THE CURRENT BETWEEN SAID GENERATOR ELECTRODES TO DETERMINE THE AMOUNT OF WATER IN SAID MATERIAL.