Method of treating(regenerating)used up ion exchange particles

Abstract

Abstract BED SECTIONS WITH A PARTIAL STREAM OF SAID WASH FLUID, THE ABOVE STEPS CREATING A PRESSURE DIFFERENTIAL BETWEEN SAID FOURTH AND FIFTH BED SECTIONS AND SAID FIRST, SECOND, AND THIRD BED SECTIONS, THEREBY CAUSING SAID BED IN ITS ENTIRETY TO MOVE COUNTER TO THE DIRECTION OF FLOW OF SAID WASH FLUID. 1. A METHOD OF CONTINUOUSLY TREATING USED UP ION EXCHANGE PARTICLES ACCORDING TO WHICH THE ION EXCHANGE PARTICLES TO BE TREATED FORM A BED HAVING NEARLY CONSTANT VOLUME AND COMPRISING AT LEAST A FIRST BED SECTION, A SECOND BED SECTION, AND A THIRD BED SECTION, A FOURTH BED SECTION, AND A FIFTH BED SECTION, SAID BED SECTIONS BEING CONSECUTIVELY ARRANGED UPON EACH OTHER, WHICH INCLUDES THE STEPS OF: SUPPLYING USED UP ION EXCHANGE PARTICLES TO SAID FIFTH BED SECTION FOR PRELIMINARY REGENERATION; ADDING REGENERATING MEDIUM TO SAID BED AT THE BOUNDARY ZONE BETWEEN SAID SECOND AND THIRD BED SECTIONS FOR REGENERATING USED UP ION EXCHANGE PARTICLES; ADDING WASH FLUID TO SAID FIRST BED SECTION FOR WASHING OUT REGENERATED ION EXCHANGE PARTICLES; WITHDRAWING FROM THE BOUNDARY ZONE BETWEEN SAID THIRD AND FOURTH BED SECTONS A FLUID STREAM COMPRISING ION EXCHANGE PARTICLES, REGENERATING MEDIUM, AND WASH FLUID; ADDING USED UP ION EXCHANGE PARTICLES TO SAID FLUID STREAM; SUPPLYING SAID FLUID STREAM AND SAID ADDED USED UP ION EXCHANGE PARTICLES TO SAID FIFTH BED SECTIONS; WITHDRAWING SPENT REGENERATING MEDIUM AND WASH FLUID FROM THE BOUNDARY ZONE BETWEEN SAID FOURTH AND FIFTH BED SECTIONS; AND WITHDRAWING REGNERATED ION EXCHANGE PARTICLES FROM BETWEEN SAID FIRST AND SECOND

Inventors

• 👤 G Plura

Bibliographic Details