Unlock instant, AI-driven research and patent intelligence for your innovation.

A method for preparing catio from ilmenite by molten salt electrolysis 3 powder method

A technology of molten salt electrolysis and ilmenite, applied in electrolysis process, electrolysis components, etc., can solve the problems of high energy consumption, high reaction temperature, long process flow, etc., and achieve low energy consumption, high purity, and shortened process flow Effect

Active Publication Date: 2017-12-22
KUNMING UNIV OF SCI & TECH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of this method is to solve the CaTiO 3 Problems such as high reaction temperature, long process flow, and high energy consumption in the production process of the prior art, the present invention realizes through the following technical solutions

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The preparation of CaTiO from ilmenite by molten salt electrolysis 3 The powder method, its specific steps are as follows:

[0018] Step 1. Under an inert atmosphere, mix CaO, NaCl and CaCl 2 Mix uniformly according to the molar ratio of 0.8:8:20 and raise the temperature to 650 °C to obtain a completely molten molten salt. Add ilmenite with a mass fraction of molten salt of 1% to the molten salt and mix evenly to obtain electrolytic molten salt; the inert atmosphere is argon gas , purity>99.9%; ilmenite includes the following mass percentage components: titanium 31.6%, iron 36.8%;

[0019] Step 2. Place the electrolytic molten salt of step 1 in the electrolytic cell, use the molybdenum rod (purity ≥99.95%) as the cathode, control the molybdenum rod not to contact the ilmenite at the bottom of the electrolytic cell, and the graphite rod as the anode, and then control the cell voltage Electrolysis was carried out at 2.8V and the electrolysis temperature was 650°C for 8...

Embodiment 2

[0021] The preparation of CaTiO from ilmenite by molten salt electrolysis 3 The powder method, its specific steps are as follows:

[0022] Step 1. Under an inert atmosphere, mix CaO, NaCl and CaCl 2 Mix uniformly according to the molar ratio of 1:12:10 and raise the temperature to 850°C to obtain a completely molten molten salt. Add ilmenite with a mass fraction of 15.2% molten salt to the molten salt and mix evenly to obtain an electrolytic molten salt; the inert atmosphere is argon gas , purity>99.9%; ilmenite includes the following mass percentage components: titanium 31.6%, iron 36.8%

[0023] Step 2. Place the electrolytic molten salt of step 1 in the electrolytic cell, use the molybdenum rod (purity ≥99.95%) as the cathode, control the molybdenum rod not to contact the ilmenite at the bottom of the electrolytic cell, and the graphite rod as the anode, and then control the cell voltage Electrolysis was carried out at 3.2V and the electrolysis temperature was 850°C for 6...

Embodiment 3

[0025] The preparation of CaTiO from ilmenite by molten salt electrolysis 3 The powder method, its specific steps are as follows:

[0026] Step 1. Under an inert atmosphere, mix CaO, NaCl and CaCl 2 Mix uniformly according to the molar ratio of 1:10:15 and raise the temperature to 700°C to obtain a completely molten molten salt. Add ilmenite with a mass fraction of molten salt of 10% to the molten salt and mix evenly to obtain electrolytic molten salt; the inert atmosphere is argon gas , purity>99.9%; ilmenite includes the following mass percentage components: titanium 31.6%, iron 36.8%

[0027] Step 2. Place the electrolytic molten salt of step 1 in the electrolytic cell, use the molybdenum rod (purity ≥99.95%) as the cathode, control the molybdenum rod not to contact the ilmenite at the bottom of the electrolytic cell, and the graphite rod as the anode, and then control the cell voltage Electrolysis was carried out at 3.2V and the electrolysis temperature was 700℃ for 7h, ...

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

No PUM Login to View More

Abstract

The invention relates to a method for preparing CaTuO<3> from ilmenite by using a molten salt electrolytic method, belongs to a nonferrous metal metallurgy field. In an inert atmosphere, CaO, NaCl and CaCl<2> are mixed uniformly and entirely melted under elevated temperature, ilmenite, accounting for 1-15.2% by mass of total melted salt, is added in the melting salt and mixed uniformly to obtain electrolytic molten salt; Electrolytic melted salt is infused in the electrolytic tank; a molybdenum rod, not contacting with the ilmenite at bottom of the electrolytic tank, serves as a cathode; a graphite rod serves as an anode and electrolysis is performed for 6-8 hours; bottom products are picked out and filtered by a 1wt% HCl solution to remove impurities in the solution, rinsed by deionized water, dried etc., and the CaTiO<3> powder is obtained. The method for preparing CaTuO<3> from ilmenite solves problems of high reaction temperature, long process course, high energy consumption etc. of the existing production technology.

Description

technical field [0001] The invention relates to a method for preparing CaTiO from ilmenite by molten salt electrolysis 3 The powder method belongs to the technical field of non-ferrous metal metallurgy. Background technique [0002] Calcium titanate (CaTiO 3 ) as the perovskite complex oxide ABO 3 It is a new type of inorganic non-metallic material with stable crystal structure, unique electromagnetic properties and high redox, photocatalytic and electrocatalytic activities, and has a wide range of applications in microwave dielectric ceramics, photocatalytic reduction and other fields. [0003] Currently CaTiO 3 The production methods mainly include solid phase sintering method, mechanochemical synthesis method, soft chemical method and so on. Among them, the solid phase sintering method uses TiO 2 and the corresponding metal carbonate or oxide as the raw material, through pre-sintering, re-sintering, cooling and other steps to make it crystallize to obtain titanate mi...

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 Patents(China)
IPC IPC(8): C25B1/00
Inventor 华一新周忠仁徐存英李坚张启波李艳龚凯汝娟坚
Owner KUNMING UNIV OF SCI & TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com