油脂脱色废白土二次煅烧再生工艺的研究  

Regeneration of spent bleaching clay by secondary calcination

作　　者：王月华 刘玉兰[2] 李超群 郝秀云 程芳园 王萍 WANG Yuehua;LIU Yulan;LI Chaoqun;HAO Xiuyun;CHENG Fangyuan;WANG Ping(R&D Center of Shandong Sanxing Group,Binzhou 256209,Shandong,China;College of Food Science and Technology,Henan University of Technology,Zhengzhou 450001,China)

机构地区：[1]山东三星玉米产业科技有限公司,山东滨州256209 [2]河南工业大学粮油食品学院,郑州450001

出　　处：《中国油脂》2019年第11期116-117,共2页China Oils and Fats

摘　　要：采用二次煅烧对油脂脱色废白土进行再生,对煅烧温度及煅烧时间进行了探索研究。通过实验确定最佳脱色废白土再生条件为520℃两次煅烧0.5 h,该条件下所得再生白土脱色率可达79.79%,接近于新活性白土的脱色效果(82.18%),实现了循环利用、节约成本、节能降耗、环保安全的目标。The spent bleaching clay was regenerated by secondary calcination, and the calcination temperature and calcination time were studied. The optimal regeneration conditions of spent bleaching clay were determined as follows: twice calcination at 520℃ for 0.5 h. Under these conditions,the bleaching rate of recycled clay reached 79.79%,close to the bleaching effect of new activated clay(82.18%), which achieved the goal of recycling, cost saving, energy saving, environmental protection and safety.

关 键 词：脱色废白土 二次煅烧 脱色效果 循环利用 白土再生 

分 类 号：TS224[轻工技术与工程—粮食、油脂及植物蛋白工程] X792[轻工技术与工程—食品科学与工程]