Methods of desulphurizing fluid materials

Details Methods of desulphurizing fluid materials Methods of desulphurizing fluid materials

1977-10-03

1979-07-17

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 53, C21C 700

Patent

active

041614003

ABSTRACT:
A method for desulphurizing fluid materials such as molten iron, steel, stack gases, synthetic natural gases, boiler gases, coal gasification and liquification products and the like is provided in which one of the group rare earth oxides, rare earth fluocarbonates, rare earth oxyfluorides and mixtures thereof, including bastnasite concentrates are reacted at low oxygen potential, with the sulphur to be removed to form one of the group consisting of rare earth sulphides, rare earth oxysulphides and mixtures thereof. The low oxygen potential can be achieved by carrying out the reaction in the presence of vacuum, reducing gases, carbon, etc.

REFERENCES:
patent: 3784374 (1974-01-01), Almand
patent: 3795505 (1974-03-01), Corradini
patent: 3816103 (1974-06-01), Link
patent: 4018597 (1977-04-01), Staggers

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