Beneficiation method for complex Te ore

A beneficiation method and tellurium ore technology are applied in the beneficiation field of complex tellurium ore to achieve the effects of improving flotation efficiency, good separation effect and reducing the amount of beneficiation

Active Publication Date: 2014-11-19
KUNMING UNIV OF SCI & TECH
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the deficiencies of the above technologies and realize the problem of high-efficiency separation and enrichment of low-grade and extremely low-grade complex and refractory tellurium ore resources, the purpose of the present invention is to provide a method for beneficiation of complex tellurium ore, in which t

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
  • Beneficiation method for complex Te ore

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1: Very low-grade, complex and difficult-to-select tellurium ore samples were taken from Sichuan Shimian, containing Te 0.08%, S 9.04%, Fe 19.59%, and SiO 2 4.90%, CaCO 3 24.91%, MgO 10.80%, Al 2 O 3 3.09%, using such figure 1 The process flow shown, the specific process parameters and beneficiation indexes are as follows:

[0025] (1) After crushing, tellurium ore with a particle size of ≤12mm is selectively ground in a ball mill. The grinding conditions are 60% grinding concentration and pH 7.5-8 in the grinding system. The grinding products are classified by high-frequency vibrating screens. The part with a particle size greater than 0.074mm is returned to the ore mill until the grinding product has a fineness of -0.074mm, which accounts for 90%. The final grinding product is classified by a hydrocyclone;

[0026] (2) After step (1) the graded materials with a particle size of 0.039mm or less are re-selected and discarded using a fine-grain shaker, a large amoun...

Example Embodiment

[0031] Example 2: Henan low-grade, complex refractory tellurium ore sample, containing Te 0.11%, S 9.64%, Fe 20.53%, SiO 2 5.30%, CaCO 3 23.82%, MgO 11.25%, Al 2 O 3 3.22%, the specific process parameters and beneficiation indexes are as follows:

[0032] (1) After crushing, tellurium ore with a particle size of ≤12mm is selectively ground in a ball mill. The grinding conditions are 62% grinding concentration and pH 7.5-8 in the grinding system. The grinding products are classified by high-frequency vibrating screens. The material with a particle size of 0.074mm or more is returned to the ore mill until the grinding product has a fineness of -0.074mm, accounting for 92%. The final grinding product is classified by a hydrocyclone;

[0033] (2) After step (1) the graded materials with a particle size of 0.039mm or less are re-selected and discarded by a centrifuge, and a large amount of tailings are discarded to obtain a weight with a tellurium content of 1.2% and a relative recove...

Example Embodiment

[0038] Example 3: Sichuan low-grade, complex and refractory tellurium ore sample, containing Te 0.12%, S13.82%, Fe 26.20%, SiO 2 10.21%, CaCO 3 21.52%, MgO 12.65%, Al 2 O 3 4.67%, the specific process parameters and beneficiation indexes are as follows:

[0039] (1) After crushing, tellurium ore with a particle size of ≤12mm is selectively ground in a ball mill. The grinding conditions are 64% grinding concentration and pH 7.5-8 in the grinding system. The grinding products are classified by high-frequency vibrating screens. The part with a particle size greater than 0.074mm is returned to the grinding machine until the grinding product has a fineness of -0.074mm, accounting for 92%. The final grinding product is classified by a hydrocyclone;

[0040] (2) After step (1) the graded materials with a particle size of 0.039mm or less are re-selected and discarded by a spiral separator, a large amount of tailings are discarded, and a tellurium-containing grade of 1.4% and a relative r...

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
Granularityaaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for recovering Te minerals from complex Te ore, and belongs to the technical field of mineral process engineering. The reselection-flotation combined method which is low in cost and stable and mature in process is put forward so that the Te minerals can be recovered from the complex Te ore. According to the technical scheme, the method is characterized in that the classification-separation process includes the steps of ore grinding, classification, reselection and flotation; firstly, broken raw ore is ground so that the product with the fineness of -0.074 mm can account for 90% to 92%; after classification is conducted through a water separating machine device, reselecting and tailing are conducted on the part with the fineness of -0.039 mm, and the process of rough flotation, sweeping and triple refined flotation is conducted on the part with the fineness of +0.039 mm. The method is suitable for processing the low-grade and extremely-low-grade complex Te ore with 0.08% to 0.12% of Te so that high-quality Te concentrates with the Te grade of 3.30% to 4.20% and the recovery rate of 85% or higher can be obtained. The method absorbs the advantages of the reselecting and tailing process and the advantages of the flotation process, is simple in process, reasonable in procedure structure, high in adaptability to raw materials, good in separation effect, stable in index and easy to implement industrially.

Description

technical field [0001] The present invention relates to a beneficiation method, in particular to a beneficiation method of complex tellurium ore. The method adopts the combined process of gravity separation and flotation, and absorbs the advantages of gravity separation process and flotation process. This method is suitable for low-grade Sorting tellurium concentrates from very low grade complex tellurium ores. Background technique [0002] Tellurium element (Te) was discovered in 1782. Metal tellurium is bright lead gray and belongs to dispersed elements. Its average abundance in the crust is very low (6<10 -6 ), so some scholars believe: "Scattered elements do not form independent deposits, they exist in the deposits of other elements in the form of associated elements." However, in recent years, the discovery and geological exploration of a series of important telluride-type gold-silver deposits and gold-silver polymetallic deposits at home and abroad have shown tha...

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): B03B7/00B03B1/00
Inventor 童雄王晓邓政斌谢贤吕昊子吕向文周永诚韩彬
Owner KUNMING UNIV OF SCI & TECH
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