作 者: ;
机构地区: 广东工学院
出 处: 《广东工业大学学报》 1995年第4期129-135,共7页
摘 要: 本文采用硫酸溶液作介质,亚硫酸盐作还原剂,结合单因素试验和正交试验法,对两种低级滑石进行了还原漂白试验研究,并提出了漂白机理.考查了还原剂、酸度、矿浆浓度、搅拌时间、温度以及还原剂添加次数对滑石漂白的影响.在优化条件下,两种滑石白度分别提高了8.1度和5.2度,除铁率分别为36.73%和12.75%. n presence of sulphuric acid medium,by adding reductors sulfite (Sodium Solrite,Sodium Dithionite),two kinds of talc ons have been studied through reduction bleaching bythe combined--method of test design and single factors. The variety and additional times ofreductors,acidity, concentration,time and temperature are investigated on the bleaching results. Under optimized conditions,their whiteness has been increased by 8.1 and 5. 2 degree,the iron removal is 36. 73% and 12. 5%,respectively.