Method and device for continuously dynamic crystallization production of calcium lactate

• Main Authors: SUN ZIHUA, LIU YAN, YU PEIXING, LIU XIAODONG, HU ZHONGHUA, YANG QINGXIANG, GU YONGHUA, DING NAN, MA KAIGE, SHANG YANQIU
• Format: Patent
• Language: Chinese; English
• Published: 14.04.2010
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention provides a method for continuously dynamic crystallization production of calcium lactate and a device for implementing the method. The method comprises steps as follows: filtering and concentrating calcium lactate feed liquor generated via fermentation, and keeping weight concentration of the filtered and concentrated calcium lactate feed liquor within 20%-60%; cooling the filtered and concentrated calcium lactate feed liquor to a temperature ranging from 50 DEG C to 70 DEG C, and stirring the cooled calcium lactate feed liquor after being pumped into a transfer tank; further cooling the calcium lactate feed liquor to a temperature ranging from 20 DEG C to 50 DEG C, and stirring the cooled calcium lactate feed liquor after being pumped into a crystallizer to generate crystal mush; cooling the crystal mush in the crystallizer to a temperature ranging from 5 DEG C to 30 DEG C, and stirring the cooled crystal mush after being pumped into a recrystallizing tank and growing crystal; and finally gener