METHOD FOR OBTAINING LYSINE OF PHARMACOPOEIA CONDITION FROM FODDER LYSINE Russian patent published in 2017 - IPC C07C227/40 C07C229/26

Abstract RU 2624002 C2

FIELD: food industry.

SUBSTANCE: solution of fodder lysine is treated sequentially at the temperature of 70-80°C with hydrated lime and orthophosphoric acid to the pH of 7.0-7.2, the precipitate is separated by means of vacuum filtration, heavy metals are removed by passing the lysine solution through the ion-exchange column with Ku-2x8 resin in the lysine form. Thereinafter, the lysine solution is clarified on the column with IA-4 brightening phenol-formaldehyde resin cured with urotropine, and is dried on a spray dryer.

EFFECT: method allows to obtain highly purified L-lysine of the pharmacopoeia condition.

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RU 2 624 002 C2

Authors

Kisil Nataliya Nikolaevna

Ter-Sarkisyan Erik Mushekovich

Dates

2017-06-30—Published

2014-06-24—Filed