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A kind of beneficiation process of iron polymetallic ore

A polymetallic ore and process technology, applied in flotation, solid separation, etc., can solve problems such as dissociation difficulties and affecting the quality of concentrate products

Active Publication Date: 2019-02-22
青海省地质矿产测试应用中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although chalcopyrite, magnetite, and sphalerite have relatively coarse natural particle sizes, they are closely intercalated with other metal minerals. Chalcopyrite, magnetite, pyrrhotite, sphalerite, and gangue minerals They are wrapped with each other, mostly in harbor-like contact, closely symbiotic, and complete monomer dissociation is relatively difficult, thus affecting the quality of concentrate products

Method used

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  • A kind of beneficiation process of iron polymetallic ore
  • A kind of beneficiation process of iron polymetallic ore
  • A kind of beneficiation process of iron polymetallic ore

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Embodiment Construction

[0023] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0024] First of all, it is necessary to conduct research on the composition of ore materials, and the results are as follows:

[0025] 1. Full ore chemical analysis and phase analysis, see Table 1, Table 2, Table 3, and Table 4 for the analysis results.

[0026] Table 1 Chemical analysis results of raw ore

[0027] element

TF

FeO

CaO

MgO

SiO 2

Al 2 o 3

K 2 o

Content / 10 -2

27.75

16.05

12.30

4.41

36.11

4.91

0.69

element

Na 2 o

Cu

Zn

Pb

S

As

Ni

Content / 10 -2

0.60

1.20

0.64

0.0047

3.17

0.020

0.0024

element

P

co

mn

Ba

Cr

Ti

/

Content / 10 -2

0.030

0.0091

0.30

0.030

0.0042

0.16

/

element

Au

Ag

Content / 10 -6

...

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Abstract

The invention discloses a beneficiation process of iron polymetallic deposit. The beneficiation process adopts flotation and magnetic separation in sequence, and specifically comprises the following steps: (1) a raw ore is grinded; (2) the copper floatation is performed; (3) the zinc sulfur mixed flotation and the regrinding separation are performed; and (4) iron is separated through weak magnetic separation; the process obtains the copper grade of 21.47% in a copper concentrate and the copper recovery rate of 91.18%; the copper concentrate contains silver of 188 g / t; the silver recovery rate is 76.24%; the zinc grade in a zinc concentrate is 42.80%; the zinc recovery rate is 48.90%; the iron grade of an iron concentrate is 67.49%; and the iron recovery rate is 63.38%.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a mineral processing process of iron polymetallic ore. Background technique [0002] The raw ore chemical analysis and process mineralogy research results of an iron-polymetallic ore in a mine show that the main recoverable elements in the ore are iron, zinc and copper. Comprehensive recovery of elemental sulfur and silver. The ore contains 1.20% copper, 19.35% magnetic iron, 3.10% sulfur and 0.64% zinc. The content of calcium oxide in the ore reaches 12.10%, which has a certain influence on the recovery of the target minerals. Although chalcopyrite, magnetite, and sphalerite have relatively coarse natural particle sizes, they are closely intercalated with other metal minerals. Chalcopyrite, magnetite, pyrrhotite, sphalerite, and gangue minerals They are wrapped with each other, mostly in harbor-like contact, closely symbiotic, and complete monomer disso...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B9/00B03D1/018B03D103/02
CPCB03B9/00B03D1/018B03D2203/02
Inventor 孙晓华赵玉卿刘氘熊馨王守敬石华鞠青海董迈青董红军常征
Owner 青海省地质矿产测试应用中心