Iron-increasing and silicon-reduction mineral separation method for iron ores

A beneficiation method and iron ore technology, which are applied in the field of iron concentrate and iron ore extraction and silicon reduction, can solve the problems of difficult operation, large consumption, increased operation cost, etc. The effect of less quantity and cost saving

Inactive Publication Date: 2010-10-13
SINOSTEEL MAANSHAN INST OF MINING RES
View PDF5 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, dodecylamine, a commonly used cationic collector, also has obvious deficiencies: large amount of foam, high viscosity, difficult defoaming, and poor fluidity in the flotation process, resulting in difficult follow-up operations; poor selectivity of dodecylamine and poor mineral separation effect greatly affected
[0010] However, the reverse flotation process of anion collectors has many kinds

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
  • Iron-increasing and silicon-reduction mineral separation method for iron ores
  • Iron-increasing and silicon-reduction mineral separation method for iron ores

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] In order to further describe the present invention, below in conjunction with accompanying drawing, a kind of mineral processing method of iron ore iron ore reduction silicon reduction of the present invention will be described in more detail.

[0032] Taking a domestic magnetite ore dressing as an example, after the existing full magnetic separation process, the grade of magnetic iron concentrate obtained is 64.5±0.5%, SiO 2 The content is about 9%, and SiO 2 The content fluctuation is relatively large, and the user response is relatively large.

[0033] The magnetic separation iron concentrate adopts figure 1 Shown a kind of mineral processing method of iron ore of the present invention to raise iron and reduce silicon is carried out to raise iron and reduce silicon mineral processing, and its technology, step are as follows:

[0034] (1) Magnetic separation of iron ore concentrates for cationic collector reverse flotation.

[0035] Feed the magnetically separated ...

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 discloses an iron-increasing and silicon-reduction mineral separation method for iron ores, which comprises the following steps of: producing TFe60 to 66 percent iron ore concentrate by the conventional mineral separation method; executing a cationic collector reverse-flotation process on the TFe60 to 66 percent iron ore concentrate to obtain cationic collector reversely-floated iron ore concentrate and middling; executing an anionic collector reverse-flotation process on the middling obtained by the cationic collector reverse-flotation to obtain anionic collector reversely-floated iron ore concentrate, and discharging tailings; and combining the cationic collector reversely-floated iron ore concentrate and the anionic collector reversely-floated iron ore concentrate to obtain final high-quality iron ore concentrate. The method has the advantages of high iron ore concentrate grade, high iron recovery rate, low fine iron mineral loss, low mineral separation energy consumption, low medicament consumption, and the capacity of solving the industrial problem of the difficult filtration of fine-grained concentrate caused by the addition of starch and greatly optimizing concentrate filtration, and can be used for the separation of magnetic iron ores as well as weakly-magnetic iron minerals, such as hematite and the like.

Description

technical field [0001] The present invention relates to an iron ore beneficiation method, in particular to an iron ore beneficiation method for iron ore reduction and silicon reduction, which is suitable for the separation of quartz-type magnetite ore and quartz-type hematite, especially for Iron and silicon reduction of fine-grained quartz-type lean magnetite ore to produce high-quality iron ore concentrate. Background technique [0002] The main characteristics of my country's iron ore are "poor", "fine" and "miscellaneous". The average iron grade is 32%, which is 11 percentage points lower than the world average grade. Among them, 97% of the iron ore needs to be processed, and the complex and difficult-to-select red iron ore accounts for a large proportion, accounting for about 20.8% of the iron ore reserves. [0003] Magnetite ore beneficiation has always been the main body of iron ore beneficiation. In my country's iron ore concentrate output, magnetite concentrate is ...

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): B03B7/00B03D1/00B03D1/01B03B1/04B03D101/02B03D103/04
Inventor 胡义明刘军张永皇甫明柱
Owner SINOSTEEL MAANSHAN INST OF MINING RES
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