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Purification of Methylsulfonylmethane from Mixtures Containing Salt by Conventional Electrodialysis

机译：常规电渗析法从含盐混合物中纯化甲磺酰甲烷

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Methylsulfonylmethane (MSM) is one of the main sources of sulfur for living bodies, but it is hard to obtain as a pure compound. Conventional electrodialysis (CED) is a mature technology that can be used for the separation and purification of biochemical products. In this study, the purification of MSM from mixtures containing salt was performed by CED. The effects of operating conditions such as operation voltage drop, feed MSM concentration, and electrolyte salt concentration on the separation performances were investigated. The results showed that the current efficiency reached 74.0%, and the energy consumption could be 12.3 Wh·L . As for the recovery rate and desalination rate, the highest recovery rate could be 97.4%, and the desalination rate was 98.5%. Based on process energy consumption calculation, the total cost of the whole process was estimated at only 2.34 $·t . Thus, CED is highly efficient and cost-effective for the separation and purification of MSM.
机译：甲基磺酰甲烷（MSM）是生物体内硫的主要来源之一，但很难以纯化合物形式获得。常规电渗析（CED）是一项成熟的技术，可用于生化产品的分离和纯化。在这项研究中，通过CED从含盐的混合物中纯化MSM。研究了操作条件如操作电压降，进料MSM浓度和电解质盐浓度对分离性能的影响。结果表明，电流效率达到74.0％，能耗为12.3 Wh·L。至于回收率和脱盐率，最高的回收率为97.4％，脱盐率为98.5％。根据过程能耗计算，整个过程的总成本仅为2.34 $·t。因此，CED对于MSM的分离和纯化非常高效且具有成本效益。

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