求翻译：化学法存在着工艺复杂、醇用量特别大、反应物中混有游离脂肪酸与水,对酯交换反应有妨害作用、产物回收难、环境污染大等缺点。是什么意思？

Chemical method exists complex process, alcohol particularly large amount of reactants in a mixture of free fatty acids and water, the transesterification prejudice to the role, difficult product recovery, environmental pollution and other shortcomings.

There is a process chemical complex, isopropyl alcohol usage in particular, in response, mixed with water, and free fatty acids and esters of prejudice role exchange reaction, the Product Recovery, air pollution, such as the disadvantages.

The chemical process has the craft complex, the mellow amount used is specially big, in the reactant mixes has the free fatty acids and the water, to the ester exchange responded has the hindrance function, the product recycles, the environmental pollution difficultly big and so on the shortcomings.

There is a complex chemical and alcohol consumption in particular, reaction of free fatty acid and mixed with water, Transesterification of prejudice, product recovery, environmental pollution and other disadvantages.

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