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Method for Scale Extraction Quebrachitol from Natural Rubber Industry Waste Water

机译:从天然橡胶工业废水中水垢提取邻苯二酚的方法

摘要

Provided is a method for scale extraction of quebrachitol from natural rubber industry waste water, the method comprising the following steps: coarsely filtering the natural rubber industry waste water to obtain a waste water clear liquor A; filtering the waste water clear liquor A with an ultrafiltration membrane to obtain a filtrate B; concentrating the filtrate B with a nanofiltration membrane or a reverse osmosis membrane to obtain a concentrated solution C; decolorizing and then evaporating and concentrating the concentrated solution C, to obtain a pasty concentrated solution D; cooling the pasty concentrated solution D for crystallization, and collecting the crystals to obtain a coarse product E; and purifying the coarse product E to obtain a pure quebrachitol. The technology process of the method is simple and low cost, scale production can be achieved, and the purity of the obtained product can be up to 99%.
机译:本发明提供一种从天然橡胶工业废水中大规模提取邻苯二酚的方法,该方法包括以下步骤:粗滤天然橡胶工业废水,得到废水澄清液A;用超滤膜过滤废水澄清液A,得到滤液B;用纳滤膜或反渗透膜浓缩滤液B,得到浓缩液C。浓缩溶液C脱色然后蒸发浓缩,得到糊状浓缩溶液D;冷却糊状浓缩溶液D以进行结晶,并收集晶体以获得粗产物E;提纯粗产物E,得到纯净的槲皮醇。该方法的工艺过程简单,成本低廉,可实现规模生产,所得产品纯度可达99%。

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