Core for proppant and process for its production

摘要

Disclosed is a proppant core and a process for its production. The core ( 1 ) is formed from a raw material mixture comprising at least a solid powder resin and a further finely divided starting material, and which, in the thermally treated state, has a density of less than 2 g/cm³. The process includes mixing the raw material components and granulating to form cores ( 1 ), subjecting them to a thermal treatment in the temperature range of 120° C. to 220° C.