饲料脱霉用膨润土提纯试验研究及性能分析  

The Purification Test and Performance Analysis of Bentonite for Feed Demolition

作　　者：程飞飞 于阳辉[1,2] 刘克起 Cheng Feifei;Yu Yanghui;Liu Keqi(Suzhou Sinoma Design&Research Institute of Non-metallic Minerals Industry Co.,Ltd.,Suzhou,Jiangsu 215151;National Engineering Research Center for Further Processing of Non-metallic Minerals,Suzhou,Jiangsu 215151)

机构地区：[1]苏州中材非金属矿工业设计研究院有限公司,江苏苏州215151 [2]国家非金属矿深加工工程技术研究中心,江苏苏州215151

出　　处：《非金属矿》2021年第4期22-25,共4页Non-Metallic Mines

基　　金：国家重点研发计划(2017YFB0310805)。

摘　　要：辽宁建平某膨润土矿蒙脱石含量较低,通过提纯试验研究其在饲料脱霉剂中的应用性能。结果表明,在捣浆质量分数为10.9%,捣浆时间为80 min,分散剂用量为1.5%,离心机转速为2300 r/min,离心时间为3.5 min的条件下,膨润土中蒙脱石含量可以提高到92%,对黄曲霉毒素B1和玉米赤霉烯酮等霉菌毒素的吸附率明显提升;提纯产品中不含方石英,且重金属含量符合GB 13078-2017《饲料卫生标准》中矿物质饲料原料的指标要求,是一种适宜的饲料脱霉用膨润土原料。The montmorillonite content of bentonite in Liaoning Jianping was relatively low.The purification experiment was conducted to study the performance of bentonite for feed demolition.The test results showed that under the conditions of mashing concentration 10.9%,mashing time 80 min,dispersant dosage 1.5%,centrifuge speed 2300 r/min,and centrifugal time 3.5 min,the content of montmorillonite in bentonite could be increased to 92%.The adsorption rate of mycotoxins such as aflatoxin B1 and zearalenone by purified bentonite were significantly improved.The cristobalite was not contained,and the content of other heavy metals meet the index requirements of mineral feed ingredients in GB 13078-2017“Feed Hygiene Standard”in the purified product,which showed that it was a suitable bentonite raw material for feed demolition.

关 键 词：膨润土 提纯 霉菌吸附率 方石英 重金属 

分 类 号：TD97[矿业工程—选矿]