Separation process utilizing urea partition chromatography

Claim 1

A METHOD OF SEPARATING A LIQUID MIXTURE OF ORGANIC COMPOUNDS AT LEAST ONE COMPONENT OF WHICH IS AN ADDUCTING COMPOUND THAN PREFERENTIALLY FORMS AN ADDUCT WITH AN ORGANIC COMPOUND ADDUCTING AGENT SELECTED FROM THE GROUP CONSISTING OF UREA, THIOUREA, TELUROUREA AND SELENOUREA AN ANOTHER COMPONENT OF WHICH IS A NONADDUCTING COMPOUND WHICH COMPRISES INTRODUCING THE MIXTURE INTO AN ADSORBENT-ADDUCTION COLUMN OF GRANULAR ADSORBENT PARTICLES WHICH HAVE BEEN SATURATED WITH A SOLUTION OF SAID ADDUCTING AGENT, THE AMOUNT OF SAID MIXTURE INTRODUCED INTO SAID COLUMN BEING INSUFFICIENT TO PENETRATE THE ENTIRE LENGTH OF THE COLUMN, AT A TEMPERATURE BELOW THE DIASSOCIATION TEMPERATURE OF THE ADDUCT FORMED BY SAID ADDUCTING AGENT AND SAID ADDUCTING COMPONENT INTRODUCING INTO THE COLUMN AN ELUANT LIQUID WHICH DOES NOT READILY ADDUCT WITH SAID ADDUCTING AGENT AND WHICH IS A SOLVENT FOR A NON-ADDUCTING COMPONENT OF THE FEED MIXTURE, RECOVERING FROM THE COLUMN A SOLUTION OF THE ELUANT LIQUID AND SUBSTANTIALLY ALL OF SAID NONADDUCTING COMPONENT, INTRODUCING INTO THE COLUMN A LIQUID THAT DISSOCIATES THE ADDUCT FORMED BY THE ADDUCTING AGENT AND AN ADDUCTING COMPONENT OF THE FEED MIXTURE AND RECOVERING SUCH ADDUCTING COMPONENT FROM THE COLUMN.

Claim 2

A METHOD OF SEPARATING A LIQUID MIXTURE OF ORGANIC COMPOUNDS AT LEAST ONE COMPONENT OF WHICH IS AN ADDUCTING COMPOUND THAN PREFERENTIALLY FORMS AN ADDUCT WITH AN ORGANIC COMPOUND ADDUCTING AGENT SELECTED FROM THE GROUP CONSISTING OF UREA, THIOUREA, TELUROUREA AND SELENOUREA AN ANOTHER COMPONENT OF WHICH IS A NONADDUCTING COMPOUND WHICH COMPRISES INTRODUCING THE MIXTURE INTO AN ADSORBENT-ADDUCTION COLUMN OF GRANULAR ADSORBENT PARTICLES WHICH HAVE BEEN SATURATED WITH A SOLUTION OF SAID ADDUCTING AGENT, THE AMOUNT OF SAID MIXTURE INTRODUCED INTO SAID COLUMN BEING INSUFFICIENT TO PENETRATE THE ENTIRE LENGTH OF THE COLUMN, AT A TEMPERATURE BELOW THE DIASSOCIATION TEMPERATURE OF THE ADDUCT FORMED BY SAID ADDUCTING AGENT AND SAID ADDUCTING COMPONENT INTRODUCING INTO THE COLUMN AN ELUANT LIQUID WHICH DOES NOT READILY ADDUCT WITH SAID ADDUCTING AGENT AND WHICH IS A SOLVENT FOR A NON-ADDUCTING COMPONENT OF THE FEED MIXTURE, RECOVERING FROM THE COLUMN A SOLUTION OF THE ELUANT LIQUID AND SUBSTANTIALLY ALL OF SAID NONADDUCTING COMPONENT, INTRODUCING INTO THE COLUMN A LIQUID THAT DISSOCIATES THE ADDUCT FORMED BY THE ADDUCTING AGENT AND AN ADDUCTING COMPONENT OF THE FEED MIXTURE AND RECOVERING SUCH ADDUCTING COMPONENT FROM THE COLUMN.