Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Controlling rate of movement of molding material or its...
Patent
1976-03-10
1977-06-21
White, Robert F.
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Controlling rate of movement of molding material or its...
264117, B01J 212
Patent
active
040311759
ABSTRACT:
Disclosed is an improved process for pelletizing batch glass making ingredients. The ingredients are pelletized in an inclined, rotating disc pelletizer using concentrated liquid alkali metal hydroxide as a binding agent and as a source of alkali metal oxide. The improvement of the invention resides in adding the glass batch ingredients directly to the pelletizing disc and pelletizing them thereon. Pellets having a 5 to 9 percent by weight moisture content are continuously produced using either fine or coarse naturally ocurring sand. The freshly formed pellets can be fed directly to a furnace or can be easily dried at slightly elevated temperature usually at temperatures not exceeding 500.degree. C. to give a strong, storage-stable pellet.
REFERENCES:
patent: 3206528 (1965-09-01), Coombs et al.
patent: 3542535 (1970-11-01), Yamamoto
Hall J. R.
Millman Dennis G.
PPG Industries Inc.
Uhl William J.
White Robert F.
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