Method of producing food grade hydrated lime

Details Method of producing food grade hydrated lime Method of producing food grade hydrated lime

2005-07-14

2008-03-04

Nguyen, Ngoc-Yen (Department: 1754)

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C423S640000, C241S024100

Reexamination Certificate

active

07338649

ABSTRACT:
A method is shown for producing food grade hydrated lime. A source of raw, hydrated lime is first passed through a classification step which divides the raw hydrated lime into a first fine stream and a first coarse stream. The first fine stream is passed through a further separation step and, without being recombined with the first coarse stream is separated out to form a very fine sized product which meets CODEX chemical specifications. The additional separation step may be a wet process and may utilize a hydrocyclone type separator.

REFERENCES:
patent: 6593379 (2003-07-01), Leiter et al.
patent: 6926879 (2005-08-01), Huege et al.
patent: 2003/0213937 (2003-11-01), Yaniv
patent: 2004/0191163 (2004-09-01), Huege
Perry et al, Chemical Engineers' Handbook, Fith edition, 1973 (no month), pp. 8-30 to 8-33.

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