Cyclic Titanium Boride Synthesis via Potassium Fluoro Salt Intermediates
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Solution Overview
Problem
Current methods for producing titanium boride and potassium cryolite require high reaction temperatures, result in low yield, and have high production costs, making them inefficient and environmentally polluting.
Innovation Solution
A cyclic preparation method using a mixture of potassium fluoborate and potassium fluotitanate as intermediate feedstock to produce titanium boride and potassium cryolite with a molecular ratio of 1.2, allowing for recycling of byproducts and reducing environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional high-temperature methods are used to produce titanium boride, then the reaction can proceed, but the reaction temperature is high and the preparation cost is high
Solution Approach 1:
The patent changes the chemical parameters of the reaction system by using potassium fluoborate and potassium fluotitanate as intermediate feedstocks instead of traditional raw materials. This parameter change allows the reaction to proceed at lower temperatures (700-800°C) while maintaining high reaction yield and reducing preparation costs.
Solution Approach 2:
The patent introduces potassium fluoborate and potassium fluotitanate as intermediate compounds that mediate the reaction between boron sources and titanium sources. These intermediaries enable the reaction to occur at lower temperatures by providing a more favorable reaction pathway compared to direct reaction of elemental boron and titanium.
2Productivity
If traditional preparation methods are used, then titanium boride can be produced, but the reaction yield is low (less than 90%)
Solution Approach 1:
By changing the chemical composition parameters to use potassium-based fluoro salts as intermediates, the reaction achieves complete conversion with yield exceeding 95%. The specific stoichiometric ratios and chemical properties of these intermediates optimize the reaction efficiency and minimize energy loss.
Solution Approach 2:
The patent implements a cyclic process where byproducts are recovered and reused. Potassium cryolite byproduct is recycled back into the reaction system, creating a continuous process that maintains high productivity and minimizes material loss, thereby improving overall energy efficiency.
3Ease of manufacture
If traditional synthesis methods are used, then production can proceed, but the preparation cost is high
Solution Approach 1:
Instead of discarding potassium cryolite as waste, the patent recovers and reuses it in subsequent reaction cycles. This recovery process converts a potential waste stream into a valuable resource, reducing the need for fresh raw materials and significantly lowering preparation costs.
Solution Approach 2:
The system is designed to be self-sufficient by recycling its own byproducts. The potassium cryolite generated in the reaction is fed back into the process, creating a self-service loop that reduces external material inputs and minimizes preparation costs.
4Object-affected harmful factors
If conventional methods are used, then titanium boride can be produced, but environmental pollution occurs
Solution Approach 1:
The patent converts the potentially harmful byproduct into a beneficial resource. Potassium cryolite, which could be considered waste, is transformed into a reusable material that enhances production efficiency when recycled, thereby eliminating environmental pollution while maintaining high productivity.
Data Source
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AI summary
The invention discloses a cyclic preparation method for producing titanium boride from intermediate feedstock potassium-based titanium-boron-fluorine salt mixture and producing potassium cryolite as byproduct, which comprises the steps: a) boric acid or boric anhydride is added with hydrofluoric acid and then with potassium sulfate for reaction to generate potassium fluoborate; titanium-iron concentrate is added with hydrofluoric acid and then with potassium sulfate for reaction to generate potassium fluotitanate; B) the potassium fluoborate is mixed with the potassium fluotitanate, and the mixture reacts with aluminum to generate titanium boride and potassium cryolite; C) the potassium cryolite is sucked out and then fed into a rotary reaction kettle together with concentrated sulfuric acid, hydrogen fluoride gas as well as potassium sulfate and potassium aluminum sulfate are generated by reaction in the rotary reaction kettle, and the hydrogen fluoride gas is collected and then dissolved in water to obtain hydrofluoric acid aqueous solution; and D) the obtained hydrofluoric acid aqueous solution and potassium sulfate aqueous solution are recycled. The invention can achieve the recycling of the byproduct potassium cryolite, simplify the process flow in the preparation of titanium boride, lower the process condition and comprehensive production cost in the preparation of titanium boride, improve the production efficiency and reduce the pollution to environment.