一种含钛渣回收钛工艺探讨

Discussion on a technology for recovering titanium from titanium containing slag

提出一种从含钛高炉渣及含钛物(矿)中回收钛的工艺。该工艺有两种流程,一种是冷态渣流程:将渣磨碎成粉末,用喷嘴将渣粉喷入熔炼炉内高温氧化、熔化,熔渣流入过度槽屏蔽钙镁,再流入斜面氯化炉氯化,含四氯化钛气体经净化得到四氯化钛,氯化残渣可制取磷酸盐水泥。另一种是热态渣流程:将高炉或电炉排出的热态渣,倒入储渣槽氧化,或屏蔽钙镁,流入斜面氯化炉氯化,含四氯化钛气体经净化得到四氯化钛,氯化残渣可制取矿渣棉。介绍了工艺流程、主要设备、技术特点和优缺点,并对工艺可行性进行研讨。

A technology for recovering titanium from ti-bearing blast furnace slag and ti-bearing minerals was presented in this paper. There are two processes for this technology. One is the cold slag process: The slag is grinded into powder. The slag powder is sprayed into the melting furnace with a nozzle to oxidize and melt at high temperature.Molten slag flow into excessive groove shielding calcium magnesium. Re-flow chlorination was done in an inclined-surface chlorination furnace. The titanium tetrachloride gas is purified and titanium tetrachloride is got. Phosphate cement can be made from chlorinated residue. Another hot slag process: blast furnace or electric furnace from the hot slag, is poured into the slag storage tank oxidation, or shielding calcium magnesium. Flow chlorination is in an inclined-surface chlorination furnace. The titanium tetrachloride gas is purified and titanium tetrachloride. Slag wool can be made from chlorinated residue. This paper introduced the technology, main equipment, technical features, advantages and disadvantages for recovering titanium from titanium containing slag, and the feasibility of the technology was also discussed.