Abstract
Waste rolling oil (WRO) can be regenerated by polymer flocculation-adsorption. Poly diallyl dimethyl ammonium chlorid (PDADMAC) is a linear high polymer with quaternary ammonium cations which was selected as an polymer flocculant. Effects of different treatment conditions on the performance of the recycled oil were investigated. Results indicated that the recycled oil achieved optimum quality under the following conditions: mass ratios of PDADMAC-WRO, KOH-WRO of 0.02 and 0.075, refining time, 20 min, refining temperature, 40 °C, stirring speed, 500 rpm, respectively. Compared with traditional regeneration methods, this flocculation method has higher effectiveness and can reduce the treatment time and cost.
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