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

Method for extracting titanium dioxide from titaniferous materials

A technology of titanium dioxide and titanium raw materials, applied in the direction of titanium dioxide, titanium oxide/hydroxide, etc., can solve the problems of high water consumption, environmental pollution, waste and by-products, etc.

Inactive Publication Date: 2009-12-09
MICROVAST POWER SYST CO LTD
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] sulfuric acid method Chlorination raw material High titanium slag (~80% titanium dioxide) Ilmenite (35-65% titanium dioxide) High titanium slag (~95% titanium dioxide) Use chemical raw materials sulfuric acid (concentrated) Chlorine shortcoming High water consumption, waste and by-products, pollution pollution environment Uniaxial loading test fixture

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 extracting titanium dioxide from titaniferous materials
  • Method for extracting titanium dioxide from titaniferous materials
  • Method for extracting titanium dioxide from titaniferous materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] In this embodiment, the chemical composition of the blast furnace slag used as the raw material is shown in Table 2.

[0084] Table 2

[0085] Component

Content (mass percentage)

TiO 2

～22％

SiO 2

～24％

CaO

～28％

MgO

～8％

al 2 o 3

～13％

FeO / Fe 2 o 3

～2.5％

V 2 o 5

～0.5％

other

～2％

[0086] Before the reaction, the blast furnace slag was screened with a 40-mesh sieve.

[0087] The reaction is carried out in a hydrothermal reactor that can withstand 4MPa and 200°C. Because hydrogen bromide is a corrosive acid, a PTFE gasket needs to be installed on the inner wall of the hydrothermal reactor. The capacity of the reaction kettle is 300mL. Add 149.9g of 40% hydrogen bromide solution and 6.0254g of blast furnace slag into the reaction kettle at room temperature, seal the reaction kettle, raise the temperature to 180°C, maintain it for 4h, and...

Embodiment 2

[0091] The blast furnace slag raw material is first ground and screened through a 325 mesh screen.

[0092] Add 35.2g of 40% hydrogen bromide solution and 8.001g of blast furnace slag into the reactor at room temperature, seal the reactor, heat the reactor to 200°C for 4h, and then cool to room temperature. The reaction product was filtered to obtain a solid precipitate and a filtrate. The main components of the solid precipitate are titanium dioxide and silicon dioxide. The above solid residue is washed and sent to an oven for drying. The final product weighs 3.581g, and the recovery rate of titanium dioxide and silicon dioxide is 44.76%.

[0093]Put 3.570g of the above final product into a 100mL hydrothermal reaction kettle, and add 2.695g of sodium hydroxide and 20mL of water at the same time. Seal the reaction kettle, heat the reaction kettle to 180° C., maintain for 4 hours, cool the reaction kettle to room temperature, and filter the reaction product to obtain a precipi...

Embodiment 3

[0095] The blast furnace slag raw material is first ground and screened through a 325 mesh screen.

[0096] Add 35.2g of 40% hydrogen bromide solution and 8.000g of blast furnace slag into a 300ml hydrothermal reactor at room temperature, seal the reactor, heat the reactor to 200°C for 2 hours, and then cool to room temperature. The reaction product was filtered to obtain a solid precipitate and a filtrate. The main components of the solid precipitate are titanium dioxide and silicon dioxide. The above solid residue is washed and sent to an oven for drying. The final product weighs 3.643g, and the recovery rate of titanium dioxide and silicon dioxide is 45.54%.

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 extracting titanium dioxide from titaniferous materials, such as blast furnace slag, ilmenite or titanium slag, and the like, comprising three steps: dissolving blast furnace slag in a hydrogen bromide solution, processing filter materials by alkaline, separating TiO2 and SiO2, and the like, wherein hydrogen bromide can be circularly used, and therefore, the sufficient hydrogen bromide and raw materials are added into a beginning period to start reaction. The method for extracting titanium dioxide from titaniferous materials is economical, efficient and eco-friendly.

Description

technical field [0001] The invention relates to a method for extracting titanium dioxide from titanium-containing raw materials, in particular to a method for extracting titanium dioxide from blast furnace slag, ilmenite and high-titanium slag. Background technique [0002] Titanium dioxide, commonly known as titanium dioxide or titanium dioxide. With excellent physical and chemical properties (high melting and boiling point, strong stability, strong adhesion, extremely white color, non-toxic, etc.), titanium dioxide is an important chemical raw material and daily or industrial coatings, often used for Manufacture fire-resistant glass, glaze, enamel, clay, high-temperature-resistant experimental vessels, etc. In 2006, the global output of titanium dioxide was 5 million tons, and it was increasing at an annual rate of 3-5%. my country is a big country in the production and consumption of titanium dioxide. In 2005, the output of titanium dioxide reached about 700,000 tons, a...

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): C01G23/047
Inventor 周小平杰夫·徐付凌雁王科
Owner MICROVAST POWER SYST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com