1
Gunther Velling, Norbert Brungel: Process for the oxidation of hydrogen sulphide dissolved in the waste water from a coal gasification process. Rheinische Braunkohlenwerke, Howson and Howson, October 23, 1984: US04478725 (40 worldwide citation)

Hydrogen sulphide in the waste water from a coal gasification installation is subjected to an oxidizing treatment in the presence of the very fine-grain residual coke which, being washed out of the product gas, is suspended in the waste water, the residual coke particles thus serving as a catalyst. ...


2
Velling Gunther, Brungel Norbert: Methode doxydation de lacide sulfhydrique en solution dans les eaux usees de la gazeification du charbon, Process for the oxidation of hydrogen sulphide dissolved in the waste water from a coal gasification process. Rheinische Braunkohlenwerke, FETHERSTONHAUGH & CO, May 7, 1985: CA1186484

ABSTRACT OF THE INVENTION Hydrogen sulphide in the waste water from a coalgasification installation is subjected to an oxidisingtreatment in the presence of the very fine-grain residualcoke which, being washed out of the product gas, is sus-pended in the waste water, the residual coke particlesthus ...