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膨润土又称膨土岩或斑脱岩,是以蒙脱石类矿物为主要成分的粘土岩,是一种含水的铝硅酸盐矿物。 蒙脱石颗粒极细,由于晶格置换晶层表面带有大量负电荷,能吸附可交换性阳离子。以吸附钠离子为主时称为钠质膨润土,以吸附钙离子为主时称为钙质膨润土。此外,还有过渡类型。钠质膨润土具有高的电动电位和极强的水化能,在物性上优于钙质膨润土,从而有广泛应用价值。在冶金工业中用于球团矿的粘合剂。 我国膨润土资源丰富,近年相继发现了浙江临安平山和新疆托克逊克尔碱两个钠质
Bentonite, also known as bentonite or bentonite, is a clay mineral containing montmorillonite as its main component. It is an aqueous aluminosilicate mineral. Montmorillonite particles are very fine, due to the lattice-displacement of the surface with a large number of negative charge, can exchange exchangeable cations. In order to absorb sodium ions mainly called sodium bentonite, mainly to absorb calcium ion called calcium bentonite. In addition, there are transitional types. Sodium bentonite with high electric potential and very strong hydration energy, better than calcium bentonite in physical properties, which has a wide range of applications. In the metallurgical industry for the pellet binder. Bentonite rich in resources in China in recent years have been found in Zhejiang Lin’an Pingshan and Xinjiang two toxins