Suzhou Suzhen Bioengineering Co., Ltd

Positec Power Tools Co., Ltd.

Bin Liu

Wei Wang

Yun Zhang

Fengli Zhao

Xiahong Zha

Jiang Du

Wei Ji

Ji An Luo

Guozhu Shi

Juanjuan Qian

Juan Ding

Biao Wang

Xiaoqing Zhou

A method for extracting polyol from a fermentation process is disclosed. The preparing method includes rectifying and purifying PDO (1,3-propanediol) from a polyol fermentation broth after concentration to form a steam condensate, wherein the concentration is a evaporative dehydration; and filtering the steam condensate through a reverse osmosis membrane to form a concentrated solution, wherein the retentate of the reverse osmosis flows back to the evaporative dehydration, and the penetrant of the reverse osmosis can be reused as a fermentation ingredient, as cleaning water or for sewage treatment; and the water content of the concentrated solution after the evaporative dehydration is 5-25 wt %; and the yield of PDO is 99.5%. The preparing method meets the requirements of water resources recycling, reduces the production loss of PDO and BDO (2,3-butanediol) during the concentration, and greatly cuts down on the amount of wastewater.

Method for extracting polyol from a fermentation process

Growing community of inventors

Suzhou, China

Bin Liu