Acetic acid is an important chemical mainly used in the chemical and pharmaceutical industries, as a raw material for products or as a solvent in the production process. Due to the production process, acetic acid may contain trace amounts of chlorine, bromine or iodide ions, as well as trace amounts of heavy metal and iron ion impurities. These impurities can cause corrosion of equipment or have a certain impact on the production process.
Sunresin provides a mature ion exchange resin process for acetic acid purification, which can remove bromine or chloride ions in acetic acid to less than 5ppm, or undetectable levels. The fixed bed mode is recommended for the ion exchange process for acetic acid purification, which runs continuously and removes impurities through the front and back resin columns to improve the removal accuracy and ensure the maximum utilization of the resins. For details, refer to the figure below.
Sunresin also provides chelating resins that can work in strong acid environments for the removal of iron in acetic acid.
Since 2017, Sunresin has carried out research and development on BPA resins. From understanding the production process of bisphenol A to benchmarking against similar competition products, after thousands of experiments and demonstrations, the resins were be tested for the first time in 2022.
During the processing from the corn raw materials to the final allulose product, Sunresin provides a complete purification process including: ion exchange deashing, activated carbon decolorization, chromatographic separation, etc., to achieve high-quality crystalline allulose. Currently, the two core process units in allulose production are the differential isomerization of fructose and the purification process.
On March 7, Forbes China released the list of "2023 China’s 100 Power Businesswomen". Dr. Gao Yuejing, chairwoman of Sunresin, was selected on the list, demonstrating the outstanding contributions of the "she power" in the development of Sunresin.
Sunresin Park,No.135, jinye Road, Xi’an Hi-tech Industrial Development Zone, Shaanxi-710076, China 
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