Process of producing iron oxide red pigment with side product from ore dressing of high iron bauxite

A technology of high iron bauxite and red iron oxide, applied in fibrous fillers and other directions, can solve the problems of unstable raw material sources, lack of mature technology for reference, complex production technology, etc., and achieve good comprehensive utilization effect.

Inactive Publication Date: 2007-08-22
中国长城铝业有限公司
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technology is mature and the product quality is stable, but the production process is complicated, the source of raw materials is unstable, the production cost is high, and the pollution to the environment is great.
The use of associated iron-containing minerals after beneficiation to produce iron oxide red is an effective way to improve the comprehensive utilization of bauxite, but without mature process reference, its performance and quality are difficult to reach the level of wet iron red

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
  • Process of producing iron oxide red pigment with side product from ore dressing of high iron bauxite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Pass the beneficiation by-products containing 80% ferric oxide through a stirring ball mill, use CSN-1 as the surface modifier, and the dosage is 0.05% of the dry ore weight; add the surface modifier to the iron-containing ore, and carry out fine grinding in the ball mill, The grinding concentration is 25%, the ball-to-material ratio is 6:1, the grinding time is 4 hours, and the particle size is less than 2 μm. After solid-liquid separation and drying, roast at 600°C for 90 minutes, and obtain qualified iron oxide by jet crushing. Red, its performance is the same as wet method.

Embodiment 2

[0025] The beneficiation by-product containing 85% ferric oxide is passed through a stirring ball mill, and HAN-12 is added as a surface modifier, and the dosage is 0.15% of the dry ore weight; through a stirring ball mill, the grinding concentration is 75%, and the ball-to-material ratio is 6: 1. Grind ore for 4 hours until the particle size is less than 2μm. After solid-liquid separation and drying, roast at 700°C for 60 minutes, and obtain qualified iron oxide red through jet crushing. Its performance is the same as that of wet method.

Embodiment 3

[0027] The beneficiation by-product containing 80% ferric oxide is passed through a stirring ball mill, and CSN-1 is added as a surface modifier, and the dosage is 0.15% of the dry ore weight; through a stirring ball mill, the grinding concentration is 75%, and the ball-to-material ratio is 6: 1. Grind ore for 5 hours until the particle size is less than 1.5μm. After solid-liquid separation and drying, roast at 650°C for 100 minutes, and then jet mill to obtain qualified iron oxide red, which has the same performance as wet method.

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 present invention relates to process of producing iron oxide red pigment with side product from ore dressing of high iron bauxite, and features that iron oxide red pigment is produced with iron containing mineral from the combined technological process of strong magnetic separation and anion reverse floating, and through adding surfactant, fine grinding, stoving, roasting and grinding in an airflow mill. The process can produce iron oxide red pigment with the performance reaching that of iron oxide red pigment the wet process produces, and has no environmental pollution and high comprehensive utilization effect.

Description

technical background [0001] A method for producing iron oxide red pigments by using high-iron bauxite beneficiation by-products relates to a process of producing aluminum concentrates from high-iron bauxite beneficiation, especially in the process of strong magnetic separation-anion reverse flotation to produce aluminum concentrates. The invention discloses a method for producing iron oxide red pigment by utilizing iron oxide associated with high-iron bauxite. Background technique [0002] The diaspore-type high-iron bauxite is widely distributed in Henan, Guangxi, Shanxi and other places in my country, with large geological reserves and high iron content (Fe 2 o 3 >15%), aluminum grade is low (Al 2 o 3 content of about 50%). Due to the current alumina production process, the bauxite fed into the mill is usually Al 2 o 3 Content > 60%, the utilization of diaspore-type high-iron bauxite has always been a difficult problem in the aluminum smelting industry. At pre...

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): C09C1/24
Inventor 李天庚王霄楠魏党生吴一峰
Owner 中国长城铝业有限公司
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