Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for separating titanium resource in titanium slag through super gravity

A super-gravity, titanium slag technology, applied in centrifuges, centrifuges with rotating drums, recycling technology, etc., can solve the effect of magnetic separation is not very effective, perovskite and titanium pyroxene magnetic susceptibility The problem is not much different, so as to achieve the effect of solving the environmental load and realizing the comprehensive utilization

Active Publication Date: 2013-10-23
UNIV OF SCI & TECH BEIJING
View PDF4 Cites 32 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] "Magnetic separation" process: The disadvantage of this process is that the ratio of perovskite and titanopyroxene has little difference in magnetic susceptibility coefficient, both of which are between non-magnetic minerals and this mineral Between, so the effect of magnetic separation is not very effective

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
  • Method for separating titanium resource in titanium slag through super gravity
  • Method for separating titanium resource in titanium slag through super gravity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Prepare 10kg of simulated Panzhihua Iron and Steel blast furnace slag with a basicity of 1.3: (CaO-TiO 2 -SiO 2 -Al 2 o 3 -MgO five-element slag), heated to 1500°C for 30 minutes to ensure that the ingredients are evenly mixed, then cooled to 1320°C, and then at a cooling rate of 0.5°C / min in the temperature range of 1250-1320°C to promote the titanium element in the titanium slag to calcium The titanite phase is enriched and eventually precipitates and grows in the form of perovskite crystals. After the slag heat treatment is completed, adjust the slag temperature to 1300°C and immediately start the centrifuge with a built-in ceramic feeding inner spiral lining, adjust the speed of the centrifuge so that the gravity coefficient is 450g, and after centrifuging at a constant temperature for 15 minutes, turn off the centrifuge. The sample from the solid outlet at the small end of the drum was ground into powder for fluorescence analysis. The composition of the titaniu...

Embodiment 2

[0045] Prepare 10kg basicity as the simulation Panzhihua Iron and Steel blast furnace slag (CaO-TiO 2 -SiO 2 -Al 2 o 3 -MgO five-element slag), heated to 1500°C for 30 minutes, then cooled to 1320°C, and then at a cooling rate of 0.5°C / min in the temperature range of 1250-1320°C to promote the enrichment of titanium in the titanium slag to the perovskite phase , eventually precipitated and grew up in the form of perovskite crystals. After the heat treatment of the slag is completed, adjust the temperature of the slag to 1300°C and immediately start the centrifuge with a built-in ceramic feeding inner spiral lining, adjust the speed of the centrifuge so that the gravity coefficient is 750g, and control the cooling rate at about 1-5°C / min. After the temperature dropped to 1150°C, the centrifuge was turned off and cooled naturally. The sample from the solid outlet at the small end of the drum was ground into powder for fluorescence analysis. The test results show that the re...

Embodiment 3

[0047] Prepare 10kg basicity as the simulation Panzhihua Iron and Steel blast furnace slag (CaO-TiO 2 -SiO 2 -Al 2 o 3 -MgO five-element slag), heated to 1500°C for 30 minutes, then cooled to 1320°C, and then at a cooling rate of 0.5°C / min in the temperature range of 1290-1320°C to promote the enrichment of titanium in the titanium slag to the perovskite phase , eventually precipitated and grew up in the form of perovskite crystals. After the heat treatment of the slag is completed, adjust the temperature of the slag to 1300°C and immediately start the centrifuge with a built-in porous ceramic filter, adjust the speed of the centrifuge so that the gravity coefficient is 750g, and control the temperature drop rate in the centrifuge to be less than 5°C / min. After reaching 1150°C, turn off the centrifuge and let it cool down naturally. The white sample retained on the filter cartridge and the black sample leaked to the outside of the filter were ground into powder for fluores...

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 provides a method for separating titanium resource in titanium slag through super gravity. The method comprises the following steps:1. cooling molten titanium slag within a temperature range from 1320 to 1250 DEG C at a cooling speed of smaller than 2 DEG C / min to obtain heat treated titanium slag; and 2. performing centrifugal super gravity separation on the heat treated titanium slag to obtain perovskite containing CaTiO3 with grade of 75-90%, wherein the recovery rate of titanium in the titanium slag can reach 70-80%. The method has the advantages that fine and scattered rich titanium in the titanium slag is directionally enriched through super gravity, the separated concentrate can be directly used as raw material for producing titanium dioxide, and the tailings can be directly used as raw material for producing cement, thereby not only solving the environmental load of the titanium slag, but also realizing the comprehensive utilization of resources.

Description

technical field [0001] The invention relates to the efficient separation and utilization of symbiotic resources in the field of metallurgy, in particular to a method for separating titanium resources from titanium slag under high gravity conditions. Background technique [0002] The Panxi region is the region with the richest and most concentrated titanium resources in China, with proven reserves of 870 million tons, accounting for 90.15% of the country's total and 35.03% of the world's total. After beneficiation, about 53% of the titanium in the vanadium-titanium magnetite enters the blast furnace smelting process in the form of iron concentrate, and finally forms alum-containing molten iron and TiO 2 It is about 25% blast furnace slag. [0003] The titanium element in the slag is distributed in a variety of titanium-containing ore phases, and the grain size is fine, which makes its ore dressing recovery technology difficult and comprehensive utilization difficult. Till n...

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
IPC IPC(8): C21B3/06C21B3/08B04B1/20
CPCY02W30/50
Inventor 郭占成李军成高金涛
Owner UNIV OF SCI & TECH BEIJING
Features
  • Generate Ideas
  • 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