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Fenton's reaction: a simple and versatile method to structurally modify commercial lignosulphonates

机译:Fenton反应:一种简单且通用的方法,可对商品木质素磺酸盐进行结构改性

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摘要

Treatment of lignosulphonates with hydrogen peroxide and Fe (II) acetate under mild conditions can be used to increase the molecular weight and content of carboxylic acids. Such Fenton's oxidation can produce, in some of the conditions of pH and lignosulphonate concentration, a two-fold increase in the molecular weight and a 6-7 fold increase in the carboxylic acid content. The structural modifications of lignosulphonate may increase the technical performance of the product in several applications. Possible reaction mechanisms of the Fenton system are proposed and discussed.
机译:在温和的条件下用过氧化氢和乙酸铁(II)处理木质素磺酸盐可用于增加分子量和羧酸含量。在某些pH和木质素磺酸盐浓度的条件下,这种芬顿氧化可以使分子量增加两倍,并使羧酸含量增加6-7倍。木质素磺酸盐的结构改性可在多种应用中提高产品的技术性能。提出并讨论了Fenton系统可能的反应机理。

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