PROCESS FOR PRODUCING HIGHLY EXFOLIATED VERMICULITE DOES NOT REQUIRE THE USE OF ORGANIC BINDING OR ORGANIC ADDITIVE TO BE SHAPED

摘要

The invention relates to a process for the preparation of an exfoliated vermiculite comprising the following steps: a step of heating a non-exfoliated hydrated vermiculite at a temperature ranging from 400 to 600 ° C. for a period ranging from 3 hours to 7 hours; hours, thereby generating dehydrated vermiculite; - a step of contacting the dehydrated vermiculite with a solution comprising an intercalation agent capable of degrading by generating gases.Application in the field of thermal insulation.