矿产综合利用Issue(1)：125-128,4.DOI:10.3969/j.issn.1000-6532.2017.01.029
电化学作用对伊利石颗粒凝聚沉降性能的影响
Effects of the Electrochemical on Coagulation and Sedimentation Performances of Illites in Water
摘要
Abstract
Illite was one of the main clay minerals in coal.the coal slime water was difficult to settlement,which of viscosity was bigger because of sliming of illite,and not only the coal slime water was difficult to be purified and to be recovered,but also the normal operations of the washing preparation were seriously affected.Aiming at the difficult sedimentation problem of the illite in the water,therefore,this paper,proposed by electrochemical methods to modified the illite,researched the effect of electrochemical action on coagulation and sedimentation behavior of illite,explored a kind of solution to the difficulty settling slurry.The specific experimental process was described as below.this author,firstly modified the illite by using electrochemical methods with calcium chloride as the electrolyte,and tested theζpotential and contact angle of illite under different electric potential with the JS94H electrophoresis apparatus and the JC2000B contact Angle meter,then calculated the electrostatic interaction potential energy,hydration interaction potential energy and total interaction potential energy under different electric potential,finally verified the coagulation and sedimentation performances of illite through the settlement test It were shown by results that by the method of electrochemical modified,the electrostatic interaction potential energy,hydration interaction potential energy and total interaction potential energy between illites,can be effectively reduced,then the sedimentation performance of illite can be better improved.,When electric potential being 2 v/cm,the turbidity of supernatant was 294 NTU that being 34.46％ of the no modified illite,the whole settlement model formed by"the side(Edge)surface(Face) "mutual adsorption space truss structure of illite particles,caused to the slower subsidence and the larger turbidity supernatant in the process of coagulation and sedimentation.关键词
电化学作用/伊利石/凝聚/沉降/EDLVO理论Key words
Electrochemical action/Illite/Coagulation/Sedimentation/EDLVO theory分类
矿业与冶金引用本文复制引用
李明明,徐硕,卢冀伟,刘炯天..电化学作用对伊利石颗粒凝聚沉降性能的影响[J].矿产综合利用,2017,(1):125-128,4.基金项目
黑龙江省普通高校矿物加工工程重点实验室开放课题(201307) （201307）
