Process for forming fluorspar compacts

Details Process for forming fluorspar compacts Process for forming fluorspar compacts

1977-12-09

1979-02-13

Silverberg, Sam

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Autogenously or by activation of dry coated particles

75 3, 75 53, 106119, 427220, B01J 210, C22B 108, C21C 700

Patent

active

041395875

ABSTRACT:
An improved process for preparing compacts of finely divided fluorspar for metallurgical use is provided in which water, hydrated lime and molasses are added in specified ratios to fluorspar in a heated mixing vessel. The water facilitates the formation of a lime-molasses coating on the fluorspar particles and impedes reaction of the lime and molasses. The water also provides evaporative cooling of the mixture, subsequent to the mixing operation, causing the molasses to become much more viscous and, resultingly, the mixture to be much less tacky so that it can be efficiently compacted immediately. Following compaction in a compacting machine the compacts are heated in an oven to force the lime and molasses reaction to completion providing a water insoluble binder for the fluorspar particles.

REFERENCES:
patent: 377036 (1888-01-01), Lichtentag
patent: 3374085 (1968-03-01), Stone
patent: 3814789 (1974-06-01), Cox
patent: 3871869 (1975-03-01), Overdirk

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