Process for the preparation of an oxytetracycline-calcium silica

Details Process for the preparation of an oxytetracycline-calcium silica Process for the preparation of an oxytetracycline-calcium silica

1983-09-29

1986-04-22

Hollrah, Glennon H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603512, C07C10326

Patent

active

045841357

ABSTRACT:
The invention relates to a process for the preparation of an oxytetracycline-calcium silicate complex salt from fermentation broth.
By the process according to the invention the valuable antibiotic oxytetracycline may be separated from the fermentation broth in an easy manner. The complex obtained according to (a) contains up to 50% of antibiotic and is suitable for the processing in the pharmaceutical industry while the product according to (b) contains 10 to 20% of antibiotic and may be used as fodder additive directly.

REFERENCES:
patent: 2649480 (1953-08-01), Regna et al.
patent: 2740816 (1956-04-01), Starbird et al.
patent: 2831878 (1958-04-01), Esminger et al.
patent: 2847471 (1958-08-01), Vandeputte et al.
patent: 2915555 (1959-12-01), Solomons, III
Merck Index 10th Edition, Compound 1680.
Blue Circle Ind., Chemical Abstracts, vol. 91, No. 62246x, 4/25/79.
Koide et al., Chemical Abstracts, vol. 89, No. 152100h, 7/20/78.
Goto et al., Chemical Abstracts, vol. 93, No. 137807h, 1980.
Merck Index 10th Edition Compounds 5509 and 9964.

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