Chlorinated paraffin turbidity
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This post was last edited by sunjl1981 on 2013-1-6 at 20:00. Our company produces chlorinated paraffins, and we have two caustic soda production units: one that produces 30,000 tons of diaphragm caustic soda per year, and another that produces 60,000 tons of ion-exchange membrane caustic soda per year. The chlorine generated by the diaphragm caustic soda process is used in the production of chlorinated paraffins, and this results in turbidity in the latter; such turbidity does not occur with ion-exchange membrane caustic soda. The chlorine treatment equipment used in both units is from the same manufacturer, so the treatment efficiency should be similar. I would like to know why turbidity occurs when diaphragm caustic soda is used in the production of chlorinated paraffins. hcbbs !!
Is the diaphragm chlorine treatment unit the same as the ion-exchange membrane chlorine treatment unit? It’s probably not a single system; the impurities present in the treated chlorine vary, which is why the turbidity of the chlorinated paraffins differs.
Two sets of equipment are fed into one chlorine treatment unit; it works fine when 60,000 tons per day of ion-exchange membrane production is involved, but turbidity occurs when the production volume increases to 30,000 tons per day
It might be due to the high iron content in the chlorine gas
It is not possible to operate the diaphragm electrolysis system separately; this increases the load on the chlorine treatment system, resulting in insufficient processing capacity, and thus an increased likelihood that the treated chlorine will contain water, acid, and other impurities.
Chlorinated paraffins require high-purity chlorine; low purity of chlorine in diaphragm cells affects the quality of chlorinated paraffins
I think it’s because of the oxygen content in chlorine; the chlorine in diaphragm alkalis has an increased oxygen content
This chlorine system is designed to handle a capacity of 100,000 tons of chlorine, so there is no issue of excessive load, and the same situation occurs with the membrane caustic process as well
As for the iron content, can’t it be removed using a chlorine water scrubber? In a subsequent treatment system, isn’t this problem caused by incomplete removal of water? Yet this contradicts the effects produced by ion exchange membranes and diaphragms
Low chlorine purity and high moisture content can affect its color.
I would like to ask the producers of chlorinated paraffins: do you conduct acid value tests on your products before they leave the factory? If so, which standards do you follow? What are the typical test values? Thank you for the answer
Oil-water separation: It enables high-precision separation of oil and water, minimizing the amount of organic substances in the resulting aqueous phase. The entire process takes place automatically and continuously, without any manual intervention or operational costs. The by-products in the form of acid or water become clear and transparent. The recovered organic substances can be reused as raw materials or solvents after dehydration; this technique has been successfully applied to chlorinated paraffins. Requirements for by-product acid or wastewater: no solid impurities (filter if any); the organic substances contained are insoluble in water, and layering should occur upon prolonged static settling. Hope this helps you