Method for removing impurities from potassium lactate solution

A potassium lactate, solution technology, applied in the separation/purification of carboxylic acid compounds, organic chemistry and other directions, can solve the problems of poor clarity and opacity of the filtrate

Inactive Publication Date: 2011-10-26
武汉三江航天固德生物科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Method for removing impurities from potassium lactate solution

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Embodiment 1

[0020] Potassium lactate is prepared as an aqueous solution with a concentration of 25% by mass and a pH value of 6.0. At a temperature of 20°C, the potassium lactate solution flows through a desodination column equipped with an inorganic ceramic membrane, and the flow rate of the potassium lactate solution is controlled to 400L / h , to complete the removal of impurities in the potassium lactate solution. The membrane layer thickness of the inorganic ceramic membrane is 50 μm, and the membrane pore diameter is 0.01 μm.

Embodiment 2

[0022] Potassium lactate is prepared as an aqueous solution with a concentration of 25% by mass and a pH value of 7.0. At a temperature of 45°C, the potassium lactate solution flows through a desodination column equipped with an inorganic ceramic membrane, and the flow rate of the potassium lactate solution is controlled at 500L / h , to complete the removal of impurities in the potassium lactate solution. The membrane layer thickness of the inorganic ceramic membrane is 55 μm, and the membrane pore diameter is 0.15 μm.

Embodiment 3

[0024] Potassium lactate was prepared as an aqueous solution with a concentration of 25% by mass and a pH value of 8.0. At a temperature of 55°C, the potassium lactate solution was passed through a desodination column equipped with an inorganic ceramic membrane, and the flow rate of the potassium lactate solution was controlled to be 700L / h , to complete the removal of impurities in the potassium lactate solution. The membrane layer thickness of the inorganic ceramic membrane is 55 μm, and the membrane pore diameter is 0.2 μm.

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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...

Claims

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Application Information

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IPC IPC(8): C07C59/08C07C51/42
Inventor 赵文胜梁庭德谢剑宏史开勇徐仁义
Owner 武汉三江航天固德生物科技有限公司
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