Method for the preparation of low molecular weight alkali metal

Details Method for the preparation of low molecular weight alkali metal Method for the preparation of low molecular weight alkali metal

1988-03-01

1990-05-01

Schenkman, Leonard

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Carbohydrate doai

A61K 3170

Patent

active

049218409

ABSTRACT:
The invention relates to a synthetic preparation of alkali metal salts of low molecular weight humic acids wherein multi-valent phenols are oxidized in a weakly alkaline aqueous medium at a temperature in the range of 15.degree. to 40.degree. C. Subsequently, the reaction mixture is adjusted to a pH value ranging between 6.2 and 7.2 and/or buffered. The low molecular alkali metal huminate is then purified through purification means including preparatory chromotography, ultra-filtration, ultra-centrifugation, or electrodialysis and separated from undesirable by-products.

REFERENCES:
Lindquist et al.--Lantbr. Hogsk Annaler, vol. 35, 815-822 (Sweden) 1969.

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