Hetang Wang

Title: Hetang Wang and Two-Stage Ultrafiltration for Biological Dust Suppressant Purification.

Introduction

Hetang Wang is an inventor based in Jiangsu, China, associated with China University of Mining and Technology. His listed patent concerns a two-stage ultrafiltration method for purifying a biological dust suppressant.

Latest Patents

Wang is credited with 1 patent: “Method for Purifying Biological Dust Suppressant by Two-Stage Ultrafiltration.” The method first centrifuges fermentation broth to remove insoluble materials, including microbial cells. The supernatant then passes through a primary ultrafiltration membrane that retains polysaccharides, lactic acid, and aggregated biological dust suppressant molecules with molecular weights above 20 kilodaltons. After dilution of the retained material with an organic solvent, such as methanol or ethyl acetate, a second ultrafiltration step produces a liquid product. Rotary evaporation and constant-temperature drying can then be used to prepare a solid purified product.

Career Highlights

The available information identifies Wang’s work with China University of Mining and Technology and documents his contribution to a purification process based on differences in solubility and molecular morphology. The method describes a sequence of pretreatment, membrane separation, solvent dilution, and final product preparation.

Collaborations

Qi Zhang and Yuxuan Wang are listed as Wang’s coworkers. The provided information does not specify their roles in the patent or the project.

Conclusion

Hetang Wang’s listed patent presents a two-stage ultrafiltration approach to purifying biological dust suppressant from fermentation broth, with the aim of producing liquid and solid purified products.