Production of metal material by composite compound

A technology for metal materials and compounds, applied in the field of preparing metal materials from composite compounds, can solve the problems of reduced mass transfer efficiency, increased energy consumption, low electrolysis efficiency and low current efficiency, and achieves improved current efficiency, reduced energy consumption, and simple process. Effect

Inactive Publication Date: 2007-04-04
WUHAN UNIV +1
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, the cation M in the molten salt during the cathodic reduction process 3 It will combine with the cathode or cathode reduction products in the cathode to block the ion migration channel and reduce the mass transfer efficiency, resulting in lower electrolysis efficiency and current efficiency, and increased energy consumption

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Production of metal material by composite compound
  • Production of metal material by composite compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031]Take Ca(OH) in equimolar ratio 2 and TiO 2 , add an appropriate amount of distilled water, and use a planetary ball mill to mill for 2-5 hours at a speed of 200-300 rpm to make it fully mixed. After drying the homogeneous slurry mixture, take 2-3g of powder and press it into tablets with a pressure of 2-10MPa. Sinter the pellet at 900-1200°C for 2-10h to obtain porous CaTiO 3 (Particle size 0.5-3 μm, see accompanying drawing 1). CaCl at 850-950°C 2 In the molten salt, argon is used as the protective gas, and CaTiO is wrapped with Mo wire or Mo net. 3 Press the tablet as a composite cathode, use graphite as the anode, apply a voltage of 3.0V, electrolyze for 6 hours, take out the product after cooling and wash it with water, and you can get metal Ti with an oxygen content of less than 2000ppm (particle size 2-10μm, see Figure 2) . Electrolysis of TiO under the same conditions 2 It takes more than 10 hours to get the same result.

Embodiment 2

[0033] Take Panzhihua Iron and Steel blast furnace slag (mainly containing Ca, Mg, Si, Ti, Fe, S, O and other elements) or titanium concentrate (mainly containing Ca, Mg, Si, Ti, V, Fe, S, O and other elements) 1.5 - 2.0g, grind it to a particle size of about 0.5-10μm, press into a tablet with 2-10MPa pressure, and then sinter at 800-1000°C for 2h. CaCl at 850-950°C 2 In the molten salt, use argon as the protective gas, wrap blast furnace slag pellets with Mo wire or Mo mesh as composite cathode, use graphite rod as anode, apply 3.0-3.2V voltage, electrolyze for 6-15h, cool the product, take it out and wash it with water , TiFeSi alloy powder (particle size about 10-20 μm) can be obtained.

Embodiment 3

[0035] Take fine spar (CaNaTa 2 o 6 (OH)) 100g, placed in a planetary mushroom machine and ground, passed through a 300-mesh sieve, took 2g of the sample and pressed it with 6MPa, and sintered it at 900°C for 2h, compounded it with molybdenum mesh as the cathode, and used graphite as the anode. CaCl at 700°C 2 - Applying 2.9-3.3V voltage to electrolyze for 6 hours in NaCl molten salt, taking out the sample after cooling, and washing with water and dilute acid to obtain tantalum powder with a particle size of several hundred nanometers.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to view more

Abstract

This invention relates to a method of preparing metal material using complex compounds. Electrolysis is carried out in the electrolyte under the protection of inert gas or air containing M3Y with composite compounds of M1M2X combine with the collector as a cathode and carbon, metal or conductive ceramic as anode. Controlling electrolysis voltage, so that M2 reduction reaction is the dominated reaction, and M1 and X is partly or all dissolved in the electrolyte as electrolysis going on. When M1 is H, M1 can be reduced to gas leaving away the cathode. At the end of electrolys, M2 alone or with part of the M1 and X-stay is left on the cathode, which is the corresponding metal. Since M1X part or all leave away cathode in this invention during electrolysis process, the reactivity and ability of cathode is enhanced, the reaction rate and the current efficiency are effectively improved and energy consumption is reduced.

Description

technical field [0001] The invention relates to a method for preparing metal materials from composite compounds, and belongs to the field of electrometallurgy, new materials and new preparation technologies. Background of the invention [0002] Metals, semi-metals, alloys, intermetallic compounds and other materials are currently mainly produced and prepared by high-temperature thermal reduction and high-temperature smelting of carbon or metals. This method is used in the smelting of steel, titanium, niobium, tantalum and some alloy materials. Industrial application, but this kind of method has high reaction temperature, high requirements on equipment and devices, and huge energy consumption and serious pollution. With the increasing attention to energy and environmental issues, it is very urgent to develop new technologies with low energy consumption and less pollution . [0003] Some metals, semi-metals, alloys, intermetallic compounds and other materials can also be prep...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C25C5/00C25C1/00C25C3/00
CPCY02P10/20
Inventor 陈政汪的华胡晓宏蒋凯金先波
Owner WUHAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap