文献类型：专利

英文题名：Compound demulsifying flocculant used for oily wastewater treatment, comprises cationic demulsifier, poly diallyl dimethyl ammonium chloride, polyaluminum chloride and polymethacrylic acid

作者：LI S;XU X;YANG J;ZHANG H;YAN L

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN104817150-B

公开日：2016-07-20

语种：英文

收录：DERWENT

摘要：NOVELTY - A compound demulsifying flocculant comprises 60-80 wt.% cationic demulsifier (I), 10-20 wt.% poly diallyl dimethyl ammonium chloride, 5-10 wt.% polyaluminum chloride and 5-10 wt.% polymethacrylic acid. USE - Compound demulsifying flocculant used for oily wastewater treatment with organic pollutant and microorganism floc including oily petrochemical enterprises wastewater, grease containing oily wastewater, chemical oily wastewater, and urban sewage and contain microbial floc aging water (all claimed). ADVANTAGE - The flocculant has low reaction temperature, fast reaction speed, high de-oiling rate, and reduced water turbidity prolapse. DETAILED DESCRIPTION - A compound demulsifying flocculant comprises 60-80 wt.% cationic demulsifier of formula (I), 10-20 wt.% poly diallyl dimethyl ammonium chloride, 5-10 wt.% polyaluminum chloride and 5-10 wt.% polymethacrylic acid. R1=-(CH2)2NH2, -(CH2)3N(CH3)2, -(CH2)6NH2 or -(CH2)9CH3; R2=-CH3, -CH2NH2, -C2H5 or -CH2NHCH2NH2; R3=-CH3, -CH2NH2, -C2H5 or -CH2NHCH2NH2; X=10-50; and Y'=1-5. An INDEPENDENT CLAIM is included for application of compound demulsifying flocculant comprising reacting at 40-60 degrees C for 1-2 hours.