Title: Desulfurization of gypsum
Application Number: 87107380 Application Date: 1987.11.06
Publication Number: 1019060 Publication Date: 1988.06.22
Approval Pub. Date: 1992.09.23 Granted Pub. Date: 1992.09.23
International Classifi-cation: C01B17/50;C01F11/08
Applicant(s) Name: Florida Inst. of Phosphate Research Address:
Inventor(s) Name: George Michael Lioyd
Attorney & Agent: HUANG JIAWEI
Abstract:
    A pelletized mixture of gypsum, carbonaceous material and pyrite is charged to a travelling grate where the charge is heated under suitable conditions to produce a solid sintered material which has a broad spectrum of applications due to its chemical and physical properties and a gaseous effluent containing sulfur dioxide, sulfur or mixtures thereof.
Time: 5