Biodiesel refers to vegetable oil (such as rapeseed oil, soybean oil, peanut oil, cottonseed oil, etc.), animal oil (such as fish oil, lard, butter, sheep oil, etc.), fatty oils formed from waste oil or microbial oil and methanol or ethanol. Methyl ester or ethanol. It is a typical "green energy." Due to the wide range of biodiesel raw materials, biodiesel produced by general manufacturers often contains various impurities, and ion exchange purification of biodiesel has been widely used. The special grade resin for biodiesel purification provided by Suzhou Bojie Resin Technology Co., Ltd. is a special cation exchange resin with high exchange capacity. It can remove or reduce the processing of salt, soap, glycerin and other organic substances from biodiesel crude oil. Auxiliary, the resin is installed in the resin column to purify the biodiesel flowing through it. The purification process of this biodiesel is all free water, and the washing process has no loss of biodiesel diesel. The resin has high mechanical strength and high bleed ball rate, acid and alkali resistance, simple operation and cost saving.