Extraction Of L-Lactic Acid By Coupled Separation Process

Zhengzhou Tiei Extraction uses the new type of ionic solvent to extract lactic acid from the crude lactic acid solution through coupled adsorption, which effectively separates lactic acid from water and other impurities, and then uses the thermal sensitivity of the solvent to separate lactic acid from the solvent. The technical features of this process are as follows:

1.High efficiency: the residual concentration of lactic acid in the original solution after coupled adsorption separation is low.

2.Strong selectivity: only lactic acid and substances with the same polarity are adsorbed, and other substances are not adsorbed.

3.Low production cost: since coupled adsorption separation is carried out under normal pressure, no other raw materials are required.

4.High separation quality: product quality indicators reach and partially exceed the level of similar international products.

5.Simplified production process.

6.Significant improvement in working conditions and production environment.

Compared with the ion exchange process, it has the following advantages:

1.Improved yield: The coupling system is efficient and the product yield is improved.

2.Improved quality: The product is of high quality, and has good thermal stability, and all indicators are qualified and better than the national standard requirements.

3.Low feed requirements: The requirements of impurities such as residual sugar in crude lactic acid are not high.

4.Small amount of wastewater: The production water consumption is greatly reduced, and the environmental protection treatment load is reduced.

5.Low overall cost: The overall production cost is greatly reduced.