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1. 发明专利

JPH11290041A PRODUCTION OF VEGETABLE JUICE 失效
公开(公告)号：JPH11290041A
公开(公告)日：1999-10-26
申请号：JP9635898
申请日：1998-04-08
申请人： FUKUOKA PREFECTURE NOGYO KYODO , KURITA WATER IND LTD
发明人： EJIMA HIROSHI , MUTO YUKIMITSU , MORIBE TAKAYUKI , KATSUMATA TAKUYA
IPC分类号： A23L2/02 , A23L2/78 , B01J41/04 , B01J49/00
摘要： PROBLEM TO BE SOLVED: To provide a method for efficiently carrying out the regeneration of an anion exchange resin, efficiently removing nitrate ions from a vegetable juice and producing the vegetable juice with a low content of the nitrate ions. SOLUTION: A stock solution (a pressed liquid) in a stock solution tank 6 is introduced from a gas-liquid inlet 28 into the upper part of a denitrating column 1 and passed through a resin bed 2 formed of a Cl-form strong basic anion exchange resin to remove nitrate ions. When the regeneration of the resin 2 is required, wash water is introduced from a gas-liquid introduction device 42 to backwash the resin 2 and feed the ion exchange resin into a regeneration column 3. A warm aqueous solution of sodium hydroxide in a downward stream is then passed from a water supply device 57 through the formed resin bed 56 to remove organic impurities sticking to the resin. An aqueous solution of sodium chloride is subsequently introduced from a tank 5 of the aqueous solution of sodium chloride into the regeneration column 3 and in a downward stream is passed from the water supply device 57 therethough to convert the resin into the Cl form. The regenerated resin is returned to the denitrating column 1 to repeat the denitrating treatment.

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