Purification of anthocyan solutions

Details Purification of anthocyan solutions Purification of anthocyan solutions

1978-01-19

1981-04-07

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Dye or potential dye composition, additive, treatment,...

Dye extracted from natural product

8 53, 8440, 426250, 8438, 8439, C09B 6100

Patent

active

042603889

ABSTRACT:
Aqueous solutions of anthocyans are purified by contacting same with a particular, metallic oxide adsorbent, said adsorbent being coated with a thin film of a styrene polymer, and thence by separating the adsorbent and treating it with an eluant. The eluate and the dry, powdery anthocyans which can be obtained therefrom are useful red, blue and violet industrial colorants, especially food colorants.

REFERENCES:
patent: 1303426 (1919-05-01), Wall
patent: 1337673 (1920-04-01), Wall
patent: 4082660 (1978-04-01), Papirer et al.

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