Removal of low melting particles from unground coal liquefaction

Details Removal of low melting particles from unground coal liquefaction Removal of low melting particles from unground coal liquefaction

1983-09-02

1985-07-02

Lutter, Frank W.

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Sorting special items or sorting by methods and apparatus...

209 5, 209 11, 209 46, 209238, 44 1R, 44 10R, 23313R, 264117, 264122, 428402, 428408, B03B 102, B07B 100

Patent

active

045266794

ABSTRACT:
A mixture of low melting particles and high melting particles is heated to a temperature above the melting point of the low melting particles and below the melting point of the high melting particles thereby melting the low melting particles and forming a bond between the low melting particles and the high melting particles which bond is strengthened on cooling, the resulting agglomerate containing the low melting particles being separated from the unbonded high melting particles.

REFERENCES:
patent: 2468472 (1949-04-01), Townsend
patent: 3097160 (1963-07-01), Rich
patent: 3114703 (1963-12-01), Brison
patent: 3306958 (1967-02-01), Gidlow
patent: 3616167 (1971-10-01), Gosden
patent: 3852046 (1974-12-01), Brown
patent: 3920418 (1975-11-01), Rice
patent: 4181502 (1980-01-01), Weber et al.

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