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

A method for selecting niobium concentrate from polymetallic ores containing rare earth, niobium, zirconium, etc.

A niobium concentrate and multi-metal technology, applied in the direction of solid separation, etc., can solve the problems of low grade niobium concentrate and the difficulty of obtaining high-grade niobium concentrate, etc., and achieve the goal of improving production efficiency, reducing processing capacity, and reducing production costs Effect

Active Publication Date: 2022-06-28
BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the physical properties and buoyancy of other useful minerals and some gangue minerals in the ore are close to those of niobium minerals, which makes it difficult to obtain high-grade niobium concentrates
[0007] According to the existing data on niobium beneficiation of 801 ore, although the so-called "niobium concentrate" can be selected, the grade of niobium concentrate is very low.

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
  • A method for selecting niobium concentrate from polymetallic ores containing rare earth, niobium, zirconium, etc.
  • A method for selecting niobium concentrate from polymetallic ores containing rare earth, niobium, zirconium, etc.
  • A method for selecting niobium concentrate from polymetallic ores containing rare earth, niobium, zirconium, etc.

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] ① Strong magnetic separation of raw ore

[0072] Raw ore (Nb+Ta) 2 O 5 The grade is 0.39%, grinding to the fineness of -200 mesh accounts for 40%, and the results of strong magnetic separation are shown in Table 1.

[0073] Table 1 Test results of strong magnetic separation of raw ore

[0074]

[0075] The raw ore can be obtained by strong magnetic separation with a yield of 13.79%, (Nb+Ta) 2 O 5 Strong magnetic rough concentrate of grade 1.94%, (Nb+Ta) 2 O 5 The recovery rate was 69.00%.

[0076] ②Intensive magnetic separation of coarse concentrate, regrinding and flotation of rare earths

[0077] Intensive magnetic separation of coarse concentrate and regrinding to fineness of -400 mesh accounts for 70%, rare earth ore activator sodium fluorosilicate dosage 600g / t, inhibitor water glass dosage 1.6kg / t, collector oxidized paraffin in rare earth flotation The amount of soap is 320g / t for rough selection and 260g / t for sweep selection. The rare earth flotation...

Embodiment 2

[0098] ① Strong magnetic separation of raw ore

[0099] Raw ore (Nb+Ta) 2 O5 The grade is 0.43%, and the grinding to the fineness -200 mesh accounts for 63%. The results of strong magnetic separation are shown in Table 6.

[0100] Table 6 Test results of strong magnetic separation of raw ore

[0101]

[0102] The raw ore can be obtained by strong magnetic separation with a yield of 24.14%, (Nb+Ta) 2 O 5 Strong magnetic rough concentrate of grade 1.44%, (Nb+Ta) 2 O 5 The recovery rate was 80.59%.

[0103] ②Intensive magnetic separation of coarse concentrate, regrinding and flotation of rare earths

[0104] Intensive magnetic separation of coarse concentrate and regrinding to fineness of -400 mesh accounts for 75%, flotation pulp concentration of 30%, rare earth ore activator sodium fluorosilicate dosage of 600g / t, inhibitor water glass dosage of 1.7kg / t, collected The dosage of oxidized paraffin soap is 360g / t for rough selection and 200g / t for sweep selection. The ra...

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

PropertyMeasurementUnit
magnetic flux densityaaaaaaaaaa
Login to View More

Abstract

The invention provides a method for selecting niobium concentrate from polymetallic ores containing rare earth, niobium, zirconium, etc. The main process is as follows: raw ore strong magnetic separation-magnetic fine regrinding-priority flotation rare earth-rare earth flotation tailings Intensive magnetic separation of niobium ‑ strong magnetic separation of niobium concentrate flotation of fine-grained niobium minerals ‑ niobium flotation tailings re-selection of coarse-grained niobium minerals to obtain high-grade niobium concentrates. The technical scheme of the invention can obtain high-quality concentrate products and reduce the processing capacity of the metallurgical process.

Description

technical field [0001] The invention belongs to the technical field of beneficiation, and in particular relates to a method for selecting niobium concentrate from polymetallic ores containing rare earth, niobium, zirconium and the like. Background technique [0002] Barenzalage Mine (also known as 801 Mine) in Zalute Banner, Inner Mongolia Autonomous Region of my country is a polymetallic ore containing rare earth, niobium, zirconium, beryllium and other useful elements. At or near industrial grade, so its ore value potential is huge. However, due to the complex types of useful elements in ores, and the inclusion of useful minerals in ores, the symbiotic relationship is close. It is very difficult to obtain a concentrate of a single element or a single mineral with high purity through conventional beneficiation, which has led to the fact that the ore has not been developed and utilized since its discovery for more than 40 years. [0003] The gangue minerals in the ore are m...

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): B03B9/00B03B1/00
CPCB03B9/00B03B1/00
Inventor 李广刘志超强录德李春风马嘉
Owner BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY