硅藻土矿提纯改性制备聚醚吸附剂的工艺研究  

Study on Purification and Modification of Diatomite for Preparing Polyether Adsorbent

作　　者：孙思莹 宋丹丹 佟玥仪 罗高洋 杨振声 王冰 SUN Si-ying;SONG Dan-dan;TONG Yue-yi;LUO Gao-yang;YANG Zhen-sheng;WANG Bing(School of Petrochemical Engineering,Shenyang University of Technology,Shenyang Liaoyang 111000,China;Evonik Tianda(Liaoyang)Chemical Additive Co.,Ltd.,Liaoyang Liaoning 111000,China)

机构地区：[1]沈阳工业大学石油化工学院,辽宁辽阳111000 [2]赢创天大(辽阳)化学助剂有限公司,辽宁辽阳111000

出　　处：《辽宁化工》2021年第7期974-976,979,共4页Liaoning Chemical Industry

摘　　要：采用酸对硅藻土进行提纯改性,再吸附含钾钠离子的聚醚多元醇。研究结果表明:提纯剂浓度为6.5%的氯化氢水溶液和7%的冰乙酸水溶液,提纯温度60℃,改性剂浓度为1.5%的L-酒石酸水溶液、改性时间为12 h时,改性硅藻土加入量为聚醚多元醇的3%,可使聚醚多元醇中钾钠离子含量由95μg·g^(-1)和20μg·g^(-1)分别降至0.7μg·g^(-1)和0.9μg·g^(-1)。Diatomite was purified and modified by acid, and then polyether polyol containing potassium and sodium ions was adsorbed. The results showed that the content of potassium and sodium ions in polyether polyol could be reduced from 95 μg·g^(-1) and 20 μg·g^(-1) to 0.7 μg·g^(-1) and 0.9 μg·g^(-1) respectively when the concentration of hydrogen chloride and glacial acetic acid were 6.5% and 7%, the purification temperature was 60 ℃, the mass fractions of L-tartaric acid was 1.5%, the modification time was 12 h and the amount of modified diatomite was 3% of polyether polyol.

关 键 词：硅藻土 提纯 改性 聚醚多元醇 吸附 

分 类 号：TQ424.22[化学工程]