Artificial gypsum stone based on phosphogypsum

The article cites the results of a study on the efficiency of using artificial gypsum stone obtained on the base of phosphogypsum in the process of Portland cement manufacture. It is shown that, in order to ensure high results, phosphogypsum should be moulded under a force exceeding the strength of crystalline hydrates of gypsum. The pressing force should be at least 100 MPa. A process flowsheet for the plant and specifications for the artificial gypsum stone have been developed.

Author: M.A. Mikheenkov

Section: Science and production

Keywords: mineralizer, phosphogypsum, setting time, portland cement, compacting