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Method for extracting and preparing titanium and alloy nanopowder through short-process treatment of titanium slag

A nano-alloy, short-process technology, applied in the field of metallurgical engineering, can solve the problems of long process flow, unfriendly environment, cumbersome operation, etc., and achieve the effect of low energy consumption, simple equipment and short process

Inactive Publication Date: 2019-02-15
王达
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0032] In order to overcome the above-mentioned deficiencies in the prior art, the inventors have proposed a short-process treatment of titanium slag extraction and preparation of titanium and The method of its alloy nanopowder

Method used

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  • Method for extracting and preparing titanium and alloy nanopowder through short-process treatment of titanium slag
  • Method for extracting and preparing titanium and alloy nanopowder through short-process treatment of titanium slag
  • Method for extracting and preparing titanium and alloy nanopowder through short-process treatment of titanium slag

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Embodiment 1

[0061] The method of extracting and reducing Ti nano-powder by using titanium concentrate (grade 52%) is carried out according to the following process steps: firstly, 200g titanium concentrate and 33g CaO reagent are uniformly mixed, compressed into a block, and placed in a high temperature furnace at 1350℃ Oxidation enrichment is carried out. After oxidation time is 7 hours, the temperature is lowered and precipitated. The reaction is quickly cooled to room temperature and then pulverized. The powder particles are 200 meshes. The titanium-rich slag is obtained after heavy-flotation. The titanium-rich slag is subjected to secondary high temperature oxidation and enrichment treatment to obtain the intermediate product titanate (CaTiO 3 ), the mass ratio of titanium-rich slag to CaO reagent is 90:10, the secondary oxidation enrichment temperature is 1250°C, and the enrichment time is 5 hours; secondly, the obtained intermediate product is combined with NaCl-60mol% CaCl 2 The molte...

Embodiment 2

[0064] The method of using titanium concentrate (50% grade) to extract and reduce Ti-Al alloy nanopowders is carried out according to the following process steps: First, 200g titanium concentrate and 52g CaCO 3 The reagents are uniformly mixed, compressed into a block and placed in a high temperature furnace at 1450°C for oxidation enrichment. The oxidation time is 8 hours and then the temperature is lowered to precipitate. The reaction is quickly cooled to room temperature and then pulverized. The powder particles are 200 meshes. -Obtain titanium-rich slag after flotation. The titanium-rich slag is subjected to secondary high temperature oxidation and enrichment treatment to obtain the intermediate product titanate (CaTiO 3 ), titanium-rich slag and CaCO 3 The reagent percentage mass ratio is 80:10, the secondary oxidation enrichment temperature is 1350℃, and the enrichment time is 6 hours; secondly, the obtained intermediate product, sodium metaaluminate and NaCl-52mol% CaCl 2 ...

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Abstract

The invention discloses a method for extracting and preparing titanium and alloy nanopowder through short-process treatment of titanium slag. The method comprises the following steps that (1) the titanium slag is subjected to high-temperature oxidation enrichment and fusion separation-out; (2) enriched slag is sequentially subjected to crushing and gravity concentration-flotation treatment; (3) secondary enrichment treatment is carried out; (4) a fused salt reaction system is prepared; (5) titanium and alloy powder reduction synthesis and preparation are carried out; and (6) slat containing powder obtained after the reduction reaction is sequentially subjected to vacuum filtering, acid pickling, water washing and vacuum drying treatment, and salt and metal powder are separated and collected. By means of the method, the titanium slag can be continuously treated to extract and prepare the titanium and alloy nanopowder, the method has the advantages of being short in process, simple in adopted equipment, low in energy consumption and excellent in product, achieving green production and the like, and especially solid / gas / liquid harmful substances polluting the environment are not generated.

Description

Technical field [0001] The invention relates to the field of metallurgical engineering, in particular to a method for preparing titanium and its alloy nano powder by extracting titanium slag in a short process. Background technique [0002] Titanium and titanium alloy materials are known as "modern metal" and "strategic metal" materials, and at the same time as an important strategic material material that is indispensable for improving the level of national defense equipment, because of its low specific gravity, high strength, corrosion resistance, and biocompatibility Good and other excellent performance, can meet the higher requirements of new super alloy materials in high-tech industries such as aerospace, military industry, biomedical, transportation and communications, and become a hot spot for research on super alloy materials. [0003] my country is a big country with titanium resources, ranking first in the world. In recent years, through the continuous efforts of scienti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/04C22B34/12B22F1/148
CPCC22B7/002C22B7/04C22B34/1222C22B34/1227B22F1/148B22F1/056B22F9/20C22C1/0458C22B34/1268C22B34/1209B22F2998/10B33Y70/00Y02P10/20C22B34/00B22F9/04B22F9/24B22F2301/205
Inventor 王娜黄凯
Owner 王达