Sugar purification ion exchange method and apparatus

Claim 1

IN APPARATUS FOR PURIFYING SUGAR JUICES AND THE LIKE, MEANS FOR CONTAINING A MIXED BED OF ANION AND CATION RESIN; MEANS FOR PASSING SAID JUICE THROUGH SAID BED; MEANS FOR SUBSTANTIALLY CONTINUOUSLY INTRODUCING FRESH RESINS TO SAID BED AT A PREDETERMINED POINT THEREOF; MEANS FOR SUBSTANTIALLY CONTINUOUSLY REMOVING EXHAUSTED RESINS FROM SAID BED AT A SPACED POINT; AND A WET GRAVITY SHAKING TABLE FOR HYDRAULICALLY SEPARATING THE ANION RESINS FROM THE CATION RESINS, SAID TABLE HAVING A TILTED BED PROVIDED WITH LONGITUDINALLY EXTENDING RIFFLES AT LEAST 1/4 INCH DEEP, AT LEAST HALF OF SAID RIFFLES EXTENDING TO THE END OF SAID TABLE, AND MEANS FOR PRODUCING A CROSS FLOW OF WASH WATER OVER SAID RIFFLES.