Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1978-07-03
1979-07-03
Niebling, John
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
2604128, 260418, 260419, 2604285, 210 21, C11B 112, C11C 104, C09F 510
Patent
active
041599926
ABSTRACT:
The invention provides a system for purifying tallow. Tallow received from rendering plants typically is contaminated with suspended plastic polymer fines. According to this invention plastic polymer fines are removed from tallow containing such fines by adjusting the temperature of the tallow to just above its freezing point, and contacting the tallow in a selected organic solvent to form a solution comprising the solvent containing dissolved tallow, and particles of undissolved plastic polymer. The resulting solution is then filtered to remove the particles of undissolved plastic polymer, and the filtrate which results is treated to separate the tallow from the solvent, e.g. as by evaporating the solvent under reduced pressure. The separated solvent may be condensed and recycled to treat fresh tallow.
REFERENCES:
patent: 3064018 (1962-11-01), Brulra
patent: 3098034 (1963-07-01), Groll
A.O.C.S. recommended practice, Ca 16-75.
Niebling John
The Badger Company, Inc.
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