Titanium tetrachloride refining processing technology

Abstract

The invention relates to a titanium tetrachloride refining processing technology. The technology includes: bringing the coarse titanium tetrachloride coming from a chlorination workshop into an elevated tank, passing the coarse titanium tetrachloride through a flowmeter and adding it into a tower from the middle part of a float valve tower, performing air flow exchange when the coarse titanium tetrachloride and a backflow fluid encounter the rising steam in a distillation kettle, condensing low fluorine silicon tetrachloride and other chlorides and bringing them into a backflow tank, returning part of the chlorides to the tower top to undergo backflow, and letting the redundant overflow to a silicon tetrachloride storage pot, vaporizing low boiling point impurity removed titanium tetrachloride, and bringing it into a copper wire distillation kettle from the bottom of the float valve tower to contact the copper wire so as to remove vanadium oxytrichloride and copper, then bringing the titanium tetrachloride into a condenser and carrying out condensing, thus obtaining a refined titanium tetrachloride fluid, checking it whether it is up to the standards, then sending it to a storage pot if it is qualified, and supplying it to a reduction process, returning the high boiling point titanium tetrachloride gathered in the distillation kettle and elevated tank to a chlorination workshop thickener regularly, and discharging the tail gas of all towers and equipment into the atmosphere by an acid sealing pot. The technology provided in the invention not only is simple, but also guarantees the quality of refined titanium tetrachloride.

Description

technical field [0001] The invention belongs to the field of chemical industry, in particular to a titanium tetrachloride refining process. [0002] Background technique [0003] Sponge titanium production is the basic link of titanium industry, it is the raw material of titanium material, titanium powder and other titanium components. Turn ilmenite into titanium tetrachloride, put it in a sealed stainless steel tank, fill it with argon gas, and make them react with metal magnesium to get "titanium sponge". But the process of turning ilmenite into titanium tetrachloride is a tricky one. The methods mainly include boiling chlorination, molten salt chlorination and shaft furnace chlorination. Boiling chlorination is currently the main method for producing titanium tetrachloride, followed by molten salt chlorination, and shaft furnace chlorination has been eliminated. Boiling chlorination generally uses high-grade titanium-rich materials with low calcium and magnesium conte...

AI Technical Summary

Problems solved by technology

No matter which method produces titanium tetrachloride, its processing technology is difficult to handle

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