Inventor

HARPER DOUGLAS CHARLES

2 patents

Patents

2 patents

US4049774ASep 20, 1977

Process for reducing formation of gypsum scale durng the washing of calcium sulphate hemihydrate crystals

FISONS LTD21 citations76

US3972981AAug 3, 1976

Method of preventing gypsum scale formation in phosphoric acid plant filters

FISONS LTD27 citations76