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A kind of electrolysis-titanium carbon sulfur anode-method for preparing metal titanium

A technology of metal titanium and titanium carbon is applied in the field of molten salt extraction of high-purity titanium metal, which can solve the problems of inability to achieve high-purity titanium, unattainable product quality, and high energy consumption, and achieve high-efficiency comprehensive utilization and high-efficiency recycling. The effect of using

Active Publication Date: 2020-10-13
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] The purpose of the present invention is to overcome the disadvantages of long process flow, high energy consumption, product quality not up to the standard of high-purity titanium or the inability to realize industrial production and application in the process of producing metal titanium in the prior art

Method used

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  • A kind of electrolysis-titanium carbon sulfur anode-method for preparing metal titanium
  • A kind of electrolysis-titanium carbon sulfur anode-method for preparing metal titanium
  • A kind of electrolysis-titanium carbon sulfur anode-method for preparing metal titanium

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Embodiment 1

[0058] Titanium dioxide (TiO 2 , 99.5wt%), graphite powder (99.95), sulfur powder (99%) were prepared according to the molar ratio of 1:2:2.1, a total of 100g. Mix and grind in a spherical ball mill for 12 hours, weigh 5g and press it into a small piece with a diameter of 5mm*5mm under a pressure of 10Mpa, and place it in a closed glass tube at one end, and seal it with a high-temperature resistant organic glue to ensure that the glass tube No air leakage at high temperature. Then place the glass tube in a muffle furnace, burn it at 1000°C for 10 hours and then lower the temperature to room temperature, cut the glass tube and take out the TiS 2 Material. Using the titanium disulfide and titanium carbide for SPS sintering at 1450 °C, the final synthesis of Ti 2 CS ceramic material. The XRD diffraction pattern of the synthesized material is shown in the attached figure 2 shown. A corundum crucible containing 150 g of NaCl-KCl eutectic molten salt was used to carry out rel...

Embodiment 2

[0060] First, 500g of titanium concentrate FeTiO 3 Carbon and vulcanization treatment is carried out at 1200°C, and the processed products are FeS and Ti 2 CS mixed powder. Then the mixed powder is soaked in 1mol / L dilute hydrochloric acid, and vacuum filtered, then dried in an oven at 80°C to obtain titanium carbon sulfur ceramic material powder (Ti 2 CS). The anode was vacuum sintered and pressed into Ti 2 CS anode. Use a corundum crucible to hold 150g of NaCl-KCl-TiCl 2 The eutectic molten salt was subjected to relevant electrolysis at 750°C. Wherein the cathode adopts a nickel rod with a diameter of 2mm, and the reference electrode is an AgCl / Ag electrode of NaCl-KCl-AgCl (0.04wt%). The current density is 0.1A / cm 2 The constant current electrolysis for 4h, the gas generated by the anode will pass into the TiO 2 Preparation of TiS by reduction in a high-temperature reactor 2 Or TiS. Then the cathode product was ultrasonically cleaned with distilled water and 1wt% ...

Embodiment 3

[0062] TiS and TiC were prepared with a molar ratio of 1:1, mixed and ground in a star ball mill for 12 hours, and vacuum sintered to prepare Ti 2 CS anode. Use a corundum crucible to hold 150g of CaF 2 -KF-NaF-Na 2 TiF 6 The eutectic molten salt was subjected to relevant electrolysis experiments at 850 °C. Ti fired 2 CS is the anode, the anode current density is 0.5A / cm 2Under constant current electrolysis, the distance between cathode and anode is 5cm. After 4 hours of electrolysis, a titanium powder product is obtained on the cathode nickel rod. The gas generated by the anode is introduced into the Ti 2 In the CO tube furnace (1500°C), the gas generated during the electrolysis process will reduce the Ti 2 CO, to obtain the TiS product. The cathode product is soaked in distilled water and washed and dried with 1 wt% dilute hydrochloric acid. The final product is titanium powder with uniform phase.

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Abstract

The invention discloses a method for preparing metallic titanium through titanium / carbon / sulfur soluble anode electrolysis, and relates to the technical fields of nonferrous metallurgical mineral treatment and titanium extraction metallurgy adopting molten salt electrochemistry. According to the method, a titanium-carbon-sulfur anode material with high electrical conductivity is successfully prepared by taking titanium-containing mineral raw materials, carbon (C) and sulfur (S) as raw materials, and via sintering and other technologies. The metallic titanium is successfully prepared in a molten salt electrolyte system through the titanium-carbon-sulfur anode. The titanium / carbon / sulfur soluble anode is adopted, the metallic titanium is deposited at a cathode in a molten salt electrolysis process, the anode generates CS2 gas, and the gas is effectively applied to treatment for minerals to prepare a titanium sulfide raw material; and the method is simple in process, low in energy consumption, continuous in production, and capable of realizing efficient and cyclic utilization for energy resources.

Description

technical field [0001] The invention belongs to the technical field of extraction of nonferrous metals, and in particular relates to titanium disulfide treatment of titanium-containing ore, preparation of titanium carbon and sulfur soluble anodes and a method for extracting molten salt of high-purity titanium metal. Using the titanium carbon sulfur anode electrolysis to directly deposit metal titanium on the cathode, the CS produced by the anode 2 Gas realizes efficient utilization of energy material recycling. Moreover, no anode slime is produced during the entire electrolysis process, so that continuous electrolysis can be realized, which will greatly reduce the metal extraction cost of titanium and the efficient resource utilization of titanium-containing ores. Background technique [0002] Due to its excellent physical and chemical properties, titanium metal is widely used in aviation, aerospace, petroleum, chemical industry, automobile, medical equipment, civil constru...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C3/28
Inventor 焦树强田栋华
Owner UNIV OF SCI & TECH BEIJING
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