全球膨润土市场报告(2017-2021年)
Bentonite is a sedimentary deposit; it is volcanic in origin and contains more than 50%
montmorillonite. Bentonite is surface mined, dried, crushed, and sent through grinding
mills to be sized based on customer requirements. Processed bentonite can also be
chemically modified. Bentonite has a unique chemical structure that enables it to act as
a sealant, binder, thickener, lubricant and absorption agent. Primarily, there are two
types of natural bentonite: calcium and sodium.