油脂脱色废白土结构与成分分析及替代脱色产品选择  

Structure and Composition Analysis of Waste White Soil for Oil Decolorization and Selection of Alternative Decolorization Products

作　　者：李书媛 佟珊 尹浩 杨静媚 张乐 肖珊 王波[1] 王际辉 LI Shu-yuan;TONG Shan;YIN Hao;YANG Jing-mei;ZHANG Le;XIAO Shan;WANG Bo;WANG Ji-hui(School of Chemical Energy and Technology Engineering,Guangdong Dongguan University of Technology,Guangdong Dongguan 523000;School of Biological Engineering,Dalian Polytechnic University,Liaonimg Dalian 116000;China Grain Oil Storage Industry Dongguan Co.,Ltd.,Guangdong Dongguan 523000,China)

机构地区：[1]东莞理工学院化学能源与技术工程学院,广东东莞523000 [2]大连工业大学生物工程学院,辽宁大连116000 [3]中储粮油脂工业东莞有限公司,广东东莞523000

出　　处：《广州化工》2024年第11期67-69,共3页GuangZhou Chemical Industry

基　　金：油脂品质控制与高值化利用技术开发(11001202211023)。

摘　　要：在大豆油脱色工艺中,会产生大量废白土;若废白土长时间存放,易发生自燃现象,从而引起火灾。本研究根据废白土的成分及结构变化,从而探究其自燃的原因。经实验可得,废白土的含油率、Mg含量和P含量、颗粒大小是导致废白土自燃的因素,可以通过筛选白土颗粒大小、回收废白土的油脂等方式,降低其对环境的危害;综合考虑脱色能力、废白土含油率、稳定性等方面,后续考虑使用混合土(凹凸棒粘土∶活性白土=1∶3)来进行脱色。In the process of soybean oil decolorization,a large amount of waste clay will be produced.If the waste white soil is stored for a long time,spontaneous combustion is easy to occur,resulting in fire.Based on the composition and structural changes of waste clay,the causes of spontaneous combustion were explored.The results showed that the oil content,Mg content,P content and particle size of waste clay were the factors leading to the spontaneous combustion of waste clay.The harm to the environment can be reduced by screening the particle size of waste clay and recovering the oil of waste clay.After comprehensive consideration of decolorization ability,oil content and stability of waste white soil,

关 键 词：废白土 自燃 结构 成分 脱色 替代 

分 类 号：TS224.6[轻工技术与工程—粮食、油脂及植物蛋白工程]