Compared with the original bentonite modification, lithium-base bentonite can improve the properties of green sand and the optimum added content is 8 %.
与原膨润土相比，锂化膨润土的加入改善了湿型砂的性能，最佳加入量为8%。
A combined method of thermal treatment and mechanochemical modification of bentonite is briefly presented in this paper.
采用热处理与机械力化学改性相结合的方法活化膨润土，可制备橡胶补强填料。
Meantime, the study of the modification of calcium bentonite was made.
同时，对钙基膨润土人工钠化进行了研究。
Results indicated that organic bentonite could be prepared firstly by Na-modification and then by quaternary ammonium treatment.
研究表明，采用天然钙基膨润土通过钠化提纯、季铵盐有机改性的方法，可以制备出性能优良的有机膨润土。
This product is made from the natural Ca-bentonite after a process of purification, modification, long-chain organic cation covers and so on.
本产品以天然优质钙基膨润土为原料，经提纯、改型、长链有机阳离子覆盖等过程精制而成。
This product is made from the natural Ca-bentonite after a process of purification, modification, long-chain organic cation covers and so on.
本产品以天然优质钙基膨润土为原料，经提纯、改型、长链有机阳离子覆盖等过程精制而成。
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