he biodiesel catalyst resin provided by  Kingshan resin  is easy to handle, can reduce or eliminate the problem of waste disposal, improve the purity and yield of the product, and has lower cost than the acid of the same catalytic effect, eliminating or greatly reducing the corrosion problem. , biodiesel conversion rate is high. Moreover, it can be regenerated and reused, the regeneration step is simple, the regeneration utilization rate is high, and the economic benefit of the biodiesel company is improved.