Recovery of caffeine from tea trimmings and vegetable wastes

Details Recovery of caffeine from tea trimmings and vegetable wastes Recovery of caffeine from tea trimmings and vegetable wastes

1992-11-24

1993-11-09

Shah, Mukund J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen bonded directly to ring carbon of the purine ring...

544275, C07D47312

Patent

active

052604373

ABSTRACT:
Tea trimmings and wastes are dried and then burned either directly or indirectly to liberate caffeine which is recovery by water scrubbing or electrostatic precipitation. The crude caffeine is then concentrated and purified by crystallization for use in foods and pharmaceuticals.

REFERENCES:
patent: 716878 (1902-12-01), Faunce
patent: 1273054 (1918-07-01), Fontanelli
patent: 2422874 (1947-06-01), Zenlea
patent: 2472881 (1949-06-01), Bender
patent: 4673743 (1987-06-01), Wilkens

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