Process for pan granulating a particulate material

Details Process for pan granulating a particulate material Process for pan granulating a particulate material

1994-03-07

1995-10-24

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Agitating to form larger particles

23313P, B29B 908

Patent

active

054607655

ABSTRACT:
Industrial materials can be efficiently pan granulated by grinding the material to 95% minus 150 mesh, feeding this to a pan in conjunction with 1 to 15% seed materials and applying binder solution such that the free moisture content of the green ball is between 8-13% by weight of the feedstock. The granules build up on the seed to a desired size range, say -5 to +8 mesh, in an onion skin manner. Product is sent preferably to a fluid bed dryer for drying. The productivity and classification is very high with yields up to 95% for two mesh size ranges, such as -5 to +8 mesh.

REFERENCES:
patent: 3206528 (1965-09-01), Coombs et al.
patent: 3536475 (1970-10-01), Trub
patent: 3711254 (1973-01-01), McGowan et al.
patent: 3853490 (1974-12-01), Boeglin et al.
patent: 4131668 (1978-12-01), Sasaki et al.
patent: 4264543 (1981-04-01), Valenta
patent: 4344747 (1982-08-01), Henry
patent: 5108481 (1992-04-01), Shutt
Chemical Engineers' Handbook, 5th ed, 1973, pp. 8-61 to 8-64.

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