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Method for directly preparing titanium alloy by titanium concentrate powder

A titanium concentrate and titanium-based technology, applied in the field of metal titanium alloy preparation technology, can solve the problems of failure to effectively solve pollution, high cost, and harsh raw material requirements, so as to achieve easy control of experimental parameters, improve electrolysis efficiency, and avoid pollution effect

Inactive Publication Date: 2010-05-19
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Neither the sulfuric acid process nor the chlorination process can effectively solve the problems of pollution, energy consumption, and complicated procedures.
[0003] As an important form of titanium resource application, titanium alloy has huge market potential, but the current production process of titanium alloy has shortcomings such as complex preparation process, high equipment requirements, and harsh raw material requirements, resulting in high costs

Method used

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  • Method for directly preparing titanium alloy by titanium concentrate powder
  • Method for directly preparing titanium alloy by titanium concentrate powder
  • Method for directly preparing titanium alloy by titanium concentrate powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Weigh 1.5g of ball-milled ore powder, and press the ore powder into discs under a pressure of 3-6 MPa ( 1.5g),

[0032] Then sinter in an oxidizing atmosphere at 1150°C for 2h. Use a molybdenum wire with a diameter of 0.2mm to wind the disc on a molybdenum rod with a diameter of 1.5mm to make the cathode, and the anode is the copper liquid saturated with carbon powder in the YSZ tube (solid oxygen-permeable film), and the CaCl 2 It is a molten salt electrolyte, and the corundum crucible is the reaction vessel. It is electrolyzed in a sealed resistance furnace. The electrolysis temperature is 1100 ° C. The whole electrolysis process is fed with high-purity argon as a protective gas. The electrolysis voltage is 3.5V. After 4 hours of electrolysis, the current drops to A very low value maintains the level, and the electrolysis is completed. After cooling down, take out the cathode and wash it with water to remove CaCl 2 Molten salt, low temperature drying to obtain rel...

Embodiment 2

[0034] Weigh 1.5g of ball-milled ore powder, and press the ore powder into discs under a pressure of 3-6 MPa ( 1.5g), and then sintered in an oxidizing atmosphere at 1150°C for 2h. see figure 1 , put the mineral powder sintered sheet directly in a small stainless steel crucible, the whole small stainless steel crucible is submerged in the molten salt of the electrolytic cell, and the small stainless steel crucible is drawn out by a molybdenum wire as the cathode, and the anode is saturated with carbon powder in the YSZ tube (solid oxygen permeable membrane) copper liquid to CaCl 2 It is a molten salt electrolyte, and the corundum crucible is the reaction vessel. It is electrolyzed in a sealed resistance furnace. The electrolysis temperature is 1100 ° C. The whole electrolysis process is fed with high-purity argon as a protective gas. The electrolysis voltage is 3.5V. After 6 hours of electrolysis, the current drops to A very low value maintains the level, and the electrolys...

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Abstract

The invention relates to a method for directly preparing titanium alloy by titanium concentrate powder, and belongs to the technical field of the preparation process for metal titanium alloys. The method mainly comprises the following steps: taking Gossampinus titanium concentrate powder as a raw material to obtain a fine material of titanium concentrate through ball milling and screening; then performing tabletting and sintering; winding round tablets on a molybdenum rod by using a fine molybdenum wire to prepare a cathode, or sintering the ore concentrate powder to form circular sheets, putting the circular sheets into a small stainless steel crucible directly, immersing the integral small stainless steel crucible into molten salt in an electrolytic cell, leading the small stainless steel crucible out by using the molybdenum wire as the cathode; taking copper solution of saturated carbon dust in a solid oxygen-permeable membrane tube as an anode; taking a corundum crucible as a reaction vessel, and taking CaCl2 as a molten salt electrolyte; taking high-purity argon as protective gas; performing electrolysis at a temperature of 1,100 DEG C under the constant voltage of between 3.5 and 4.0 V for 2 to 6 hours, taking the electrolyzed cathode out, and washing and drying the electrolyzed cathode to prepare the titanium alloy. The method has the characteristics of short flow, high efficiency, no pollution, low cost and the like.

Description

technical field [0001] The invention relates to a method for directly preparing titanium series alloys from titanium concentrate powder, and belongs to the technical field of metal titanium alloy preparation technology. Background technique [0002] my country is a country rich in titanium ore resources, and the Panzhihua area is rich in titanium resources. The recovery of ilmenite from Panzhihua vanadium-titanium magnetite has become one of the important sources of titanium raw materials in my country. The country's comprehensive utilization of Panzhihua titanium resources is very important big concern. Titanium concentrate is the raw material for extracting titanium products (mainly titanium dioxide and titanium sponge). The process of extracting titanium is essentially a process of impurity removal and purification. However, the current production techniques for producing titanium dioxide and titanium sponge are high in energy consumption and heavy in pollution. The curr...

Claims

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Application Information

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IPC IPC(8): C25C5/04
Inventor 鲁雄刚邹星礼李重河钟庆东
Owner SHANGHAI UNIV
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