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本文报道了采用膜分离组合工艺从海带浸泡液中提取甘露醇工业性试验的结果，并进行了经济效益测算和评估。该工艺技术可行，运行稳定；与现行制取甘露醇工艺相比，具有较显著的经济效益，可以在海藻工业和类似的化工分离过程中推广应用。
This paper reports the results of the industrial experiment on the extraction of mannitol from kelp soaking solution by membrane separation and combination process, and the calculation and evaluation of economic benefits. The process technology is feasible and stable operation. Compared with the current mannitol preparation process, the process has obvious economic benefits and can be applied in the separation process of the seaweed industry and the similar chemical industry.