摘要我国硫酸铝的生产现状，年产量万吨以上的企业已达 29 个，3000t 至10000t 的企业达 85 个。全国硫酸铝生产能力已达 115 万 t，产量突破 95 万t，仅次于美国和日本，而居世界第三位[1]；硫酸铝生产中存在的问题是，设计不合理，设备不配套，产量质量都无法达到初衷要求以与部分生产厂家规模较小，经济效益差导致产品积压严重、投资无法收回，使部分企业背上沉重的经济包袱；生产工艺主要有铝灰、铝渣法、活性氢氧化铝法、铝矾土常压法、煤矸石加压法等，对各个工艺的优缺点进行对比，发现以高岭土为原料生产硫酸铝，具有原料成本低，产量高，产品质量好，过程易控制等优点，制备过程中产生的废渣可作为高活性的高硅材料，也可作为优良的涂料与板材制品填料，从而实现了综合利用和无废渣排放，具有积极的环保意义；采纳高岭土为原料生产硫酸铝，符合设计的目的和指导思想。高岭土生产硫酸铝，使高岭土经过预处理过程，排除高岭土中的粗石英砂、杂质，用于生产水泥玻璃，得到高岭土精矿，经过煅烧活化，粉碎，过筛送致生产车间，与 55%的硫酸容易混合送至反应釜，经过反应的酸浸，沉降，分离和中和处理，得到合格的硫酸铝容易，送至浓缩结晶槽中，进行浓缩结晶，并通过成品粉碎机将硫酸铝晶体粉碎，包装。关键词：硫酸铝；现状；生产工艺；高岭土AbstractThe plants having 10,000 tons of annual output of aluminum sulfate in China hav being upto 29, and the plants having 3000 t to 10000 t, being upto 85.The aluminum sulfate production capacity has reached 1.15 million t, yield breakthroughs 950,000 t, after the United States and Japan, the third in the world live;Aluminum sulfate production in the problem is that the unreasonable design, equipment is not supporting, yield and quality are unable to meet its mind and requested some smaller manufacturers, leading to poor economic returns serious backlog of products, investment is not possible, so that some enterprises back heavy The economic burden of production of a major Al Grey, Al Jardine, of aluminum hydroxide, bauxite atmospheric pressure, such as coal gangue compression meth...
