摘要
以钛精矿、碳和Cl2为原料,采用流态化的生产技术,通过气流加热碳使碳的比表面积大于20m2/g,把非多孔型无烟煤在流化床中与空气在500～600℃的高温下进行处理,直到形成多孔状,以380～400℃的低温的条件下,同样用流化床将钛精矿与碳进行100:30的混料后与氯气反应,能够实现四氯化钛(TiCl4)的制备。该方法解决了原料中CaO和MgO在床层中大量积累,并导致沟流出现,破坏流化状态,既避免沸腾氯化对原料的苛刻的要求,也解决了H2SO4法生产的废液环保问题。为解决攀枝花高钙、镁的钛资源利用提供了一个可行的途径。
In this paper, titanium concentrate titanomagnetite, carbon and C12 as raw materials, production technology using fluidized by heating air to make carbon-carbon ratio of surface area greater than 20m^2/g, the non-porous anthracite in a fluidized bed with air at 500- 600℃ under high temperature treatment formatted of porous , under 380- 400 ℃low temperature conditions, the same fluidized bed titanium concentrate titanomagnetite and carbon to ehloridize , after 100：30 of the solid mixing reaction, Preparation of TiCl4 can be achieved. This method not only avoids the raw materials in the CaO and MgO in the bed of a large number of accumulated and led to ditch flows appear to undermine fluidized state, namely to avoid boiling chlorinated stringent requirements for raw materials, but also eliminates environmental waste produced by H2SO4 problem. To solve problem of high calcium, magnesium and titanium resource utilization of Panzhihua provides a practical way.
出处
《四川化工》
CAS
2010年第2期7-11,共5页
Sichuan Chemical Industry
关键词
钛精矿
高温碳化
低温氯化
转化率
titanium concentrate
high-temperature carbonation
low-temperature chloride
conversion rate
