Selective Chlorination for Titanium Tetrachloride Recovery
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Solution Overview
Problem
The production process for titanium tetrachloride generates valuable materials like unreacted titanium-rich raw materials and chlorine as waste, leading to increased costs and environmental concerns, with existing methods being inefficient in recycling these materials and treating impure chlorides.
Innovation Solution
A method involving selective chlorinating treatment of titanium-containing raw materials to separate and recover unreacted titanium and chlorine, using the recovered solid materials to improve titanium concentration and recycle chlorine, thereby reducing waste and improving process efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional water washing and separation treatment is applied to byproduct, then harmful factors are reduced, but valuable materials (unreacted titanium-rich raw material, carbon raw material, and chlorine) are wasted
Solution Approach 1:
The patent applies this principle by converting the harmful byproduct containing metal chlorides into a beneficial resource. Instead of simply washing and discarding the byproduct, the invention reacts it with titanium dioxide and carbon in a chlorinating reaction to produce titanium tetrachloride, thereby converting waste material into valuable product and eliminating the loss of valuable materials like titanium, carbon, and chlorine
Solution Approach 2:
The patent implements this principle by recovering valuable materials from the byproduct through a chemical reaction process. The byproduct is not discarded but rather processed to extract and recover titanium, carbon, and chlorine in the form of titanium tetrachloride, which can be reused in the production cycle, thus preventing material loss
2Manufacturing precision
If low grade titanium raw material is used to improve quality, then high titanium-containing raw material can be obtained, but impure chlorides increase as waste product
Solution Approach 1:
The patent converts the impure chlorides generated from processing low grade titanium material into valuable titanium tetrachloride product. By reacting the impure chlorides with titanium dioxide and carbon in a chlorinating reaction, the invention transforms what would be waste into useful product, thereby reducing waste quantity while maintaining high titanium concentration output
3Loss of substance
If existing methods react metal chlorides at high temperature to recover metal, then valuable material can be recovered, but titanium chlorides require further treatment increasing cost and process complexity
Solution Approach 1:
The patent merges multiple operations into a single integrated chlorinating reaction process. Instead of separately recovering metal from metal chlorides and then separately producing titanium tetrachloride, the invention combines these steps by reacting metal chlorides with titanium dioxide and carbon in one process to directly produce titanium tetrachloride, thereby reducing process complexity and eliminating the need for further treatment of titanium chlorides
Solution Approach 2:
The patent applies this principle by making the chlorinating reaction serve multiple functions simultaneously: it recovers valuable titanium material, produces titanium tetrachloride product, and handles impure chlorides all in one process. This multi-functional approach eliminates the need for separate treatment steps, reducing both cost and process complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method efficiently recovers valuable materials, reduces waste, and improves the quality of titanium-containing raw materials, allowing for their reuse in titanium tetrachloride production, thereby minimizing environmental impact and lowering production costs.
Implementation Method 1
separating and removing impurities selectively from the titanium-containing raw material as chlorides
Implementation Method 2
heating the mixture together so as to vaporize and remove impure chlorides contained in the solid recovered material
Implementation Method 3
reacting chlorine gas with the heated mixture so as to separate and remove other impurities contained in the solid recovered material in the form of chlorides
Implementation Method 4
titanium tetrachloride is produced by a chlorinating reaction of raw material containing titanium
Data Source
AI summary
A method for producing titanium tetrachloride is provided, in which valuable materials such as unreacted titanium-containing raw material, carbon raw material and chlorine can be recovered from solid recovered material generated in chlorinating process of titanium-containing raw material, and titanium-containing raw material can be efficiently used. The treatment method of titanium-containing raw material includes the steps: separating and removing impurities selectively from the titanium-containing raw material as chlorides so as to obtain high titanium-containing raw material, producing titanium tetrachloride using the high titanium-containing raw material, and performing separating process of impurities from solid recovered material byproduced in the production of titanium tetrachloride, together with selective chlorinating treatment of the titanium-containing raw material. Thus, the high titanium-containing raw material can be produced while recovering chlorine and impure oxides.