Method for removing impurities from potassium lactate solution

Abstract

The invention relates to a method for removing impurities from a potassium lactate solution. The method comprises that: potassium lactate is prepared into an aqueous solution and the impurities are separated from the potassium lactate solution through an inorganic ceramic membrane. According to the invention, removing the impurities from the potassium lactate solution is completed through an inorganic ceramic membrane separation technology, so the clarity and the transparency of the potassium lactate solution are substantially improved, the loss of effective components is less, the yield is increased by 10% than yields of traditional filtering, and simultaneously the apparent clarity of a filtrate is improved and the light transmittance is improved from 60% to 95%. Ceramic membrane filtration equipment which can continuously work for a long time allows regeneration of the membrane to be simple and efficient, fully-automatic control to be realized and labor intensity to be low.

Description

technical field [0001] The invention belongs to the field of biological fermentation, and in particular relates to a method for removing impurities with potassium lactate. Background technique [0002] Potassium lactate is a kind of lactate products, which is generally produced by reacting pure natural L (+) lactic acid produced by fermentation with corresponding alkali. Potassium lactate is becoming more and more popular among consumers in meat processing technology due to its low sodium properties. Meat processing enterprises in developed countries such as the United States have begun to use potassium lactate products in production and processing. The sodium content in the potassium lactate products of Holland Prak, an authoritative and well-known enterprise in the production of lactic acid and series products in the world, and the potassium lactate products in the US market are both less than 1000ppm. At the same time, potassium lactate has been more and more used in sk...

AI Technical Summary

Problems solved by technology

The traditional method of removing activated carbon is to use filter processes such as plate frame, drum, centrifugation, and diatomaceous earth. Due to the inhomogeneity of the filter pore size and the large pore size, the filtrate obtained by traditional filtration has poor clarity, opaque, and contains small amount of activated charcoal

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