Process for granulating metal sulfide powders

Details Process for granulating metal sulfide powders Process for granulating metal sulfide powders

1978-12-22

1980-11-11

Arnold, Donald J.

Plastic and nonmetallic article shaping or treating: processes

Recycling of reclaimed or purified process material

Of gaseous process material

264117, B01J 210

Patent

active

042332540

ABSTRACT:
A process for granulating metal sulfide powders comprises the steps of adding a solution of thermosetting resin in a volatile organic solvent, as a binder, to a metal sulfide powder as the starting material, forming the mixture thus obtained into granules by a granulator, drying the granulation product, sieving the dried product for classification and recovering the granules within desired limits of particle size, recycling the fines after the sieve classification, with the addition of only the volatile organic solvent, as the material, and heating the granules within the desired limits of particle size for curing. Coarse particles separated out by the sieve classification are pulverized and recycled as the material, with the addition of only the volatile organic solvent.

REFERENCES:
patent: 2919184 (1959-12-01), Osswald et al.
patent: 3711254 (1973-01-01), McGowan et al.

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