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Silicate gangue mineral inhibitor for flotation of Ti-containing mineral and application of inhibitor

A technology of gangue minerals and titanium minerals, applied in flotation, solid separation, wet separation, etc., to achieve good selective inhibition, loss reduction and good selectivity

Active Publication Date: 2019-08-02
INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The ilmenite flotation silicate gangue inhibitor described above, due to insufficient selectivity, not only inhibits silicate gangue minerals, but also strongly inhibits the floating of useful minerals containing titanium. Currently, titanium-containing minerals are used in Panzhihua, China Mineral flotation operations only use sulfuric acid as the main inhibitor

Method used

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  • Silicate gangue mineral inhibitor for flotation of Ti-containing mineral and application of inhibitor
  • Silicate gangue mineral inhibitor for flotation of Ti-containing mineral and application of inhibitor
  • Silicate gangue mineral inhibitor for flotation of Ti-containing mineral and application of inhibitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] ① Pre-enrichment operation

[0036] The raw ilmenite ore used in the improvement test of the beneficiation pre-enrichment operation of titanium-containing minerals was taken from Panxi Concentrator, and the XRF analysis results of the raw ore samples are shown in Table 1. Titanium-containing mineral ore pre-enrichment process flow 1 and titanium-containing mineral ore pre-enrichment process flow 2 are as follows figure 1 and figure 2 As shown, the pre-enrichment titanium rough concentrate index obtained by different pre-enrichment processes is shown in Table 2:

[0037] Table 1 XRF analysis results of raw ore samples

[0038] Element TF Fe 2 o 3

[0039] Pre-enrichment process 1: weak magnetic separation-ZH strong magnetic separation, pre-enriched titanium rough concentrate product name: Z-K; tailings product name: Z-X; weak magnetic separation tailings name: A. Pre-enrichment process 2: weak magnetic separation-ZH strong magnetic separation-helica...

Embodiment 2

[0062] The inhibitor of the present invention is adopted: the weight ratio of 1-naphthalenesulfonic acid to sodium fluorosilicate is 3:1, for a certain titanium-containing mineral raw ore, the TFe content of the titanium-containing mineral raw ore is 32.78%, and TiO 2 The content is 12.50%. According to the different pre-enrichment processes in ① of Example 1, the ilmenite minerals are pre-enriched, and the obtained pre-enriched ilmenite coarse concentrate is floated according to ③ and ④ steps in Example 1. In the comparison experiment, the dosage of sulfuric acid is 4000g / t, the pH value of flotation pulp is 5-6, the dosage of collector in flotation experiment is 2500g / t, and the dosage of inhibitor is 200g / t. The comparative test results are shown in Table 7 and Table 8 Shown, can find out from comparative test result and adopt silicate gangue mineral inhibitor of the present invention, can make titanium-containing mineral beneficiation TiO 2 The recovery rate of weak magnet...

Embodiment 3

[0068] Adopt the inhibitor of the present invention: methyl naphthalene sulfonic acid polycondensate and sodium fluorosilicate weight ratio are 10:1, to certain titanium-containing mineral raw ore, TFe content of titanium-containing mineral raw ore is 24.78%, TiO 2 The content is 7.54%. According to the different pre-enrichment processes in ① of Example 1, the ilmenite minerals are pre-enriched, and the obtained pre-enriched ilmenite coarse concentrate is then flotation according to the steps ③ and ④ in Example 1. In the comparative experiment, the dosage of sulfuric acid was 4000g / t, the pH value of the flotation pulp was 5-6, the dosage of the collector in the flotation experiment was 3000g / t, and the dosage of the inhibitor was 250g / t. The comparative test results are shown in Table 9 and Table 10. It can be seen from the comparative test results that the silicate gangue mineral inhibitor of the present invention can be used to make titanium-containing minerals beneficiated ...

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Abstract

The invention discloses a combined inhibitor for silicate gangue mineral in the flotation process of Ti-containing mineral and an application of the inhibitor. The combined inhibitor consists of one or more of organic sulfonate, oxalic acid, water glass, a water glass and oxalic acid mixture and sodium fluosilicate, wherein organic sulfonate mainly comprises aromatic sulfonate and a polymer thereof. Compared with common silicate gangue mineral inhibitors for flotation of Ti-containing mineral at preset, the inhibitor has a better selective inhibition function on the silicate gangue mineral, strongly inhibits floatation of gangue mineral in the floatation process and has a weaker inhibition function on Ti-containing useful mineral than oxalic acid, water glass, the water glass and oxalic acid mixture and the sodium fluosilicate, and the recovery rate of the Ti-containing useful mineral concentrate can be increased under the condition that the selectivity of the Ti-containing mineral floatation separation process. The inhibitor has a better effect than conventional gangue mineral inhibitors for floatation of ilmenite when used for separating ilmenite from the gangue mineral.

Description

technical field [0001] The invention belongs to the field of beneficiation and flotation reagents, in particular to a silicate gangue mineral inhibitor for flotation of titanium-containing minerals and its application. Background technique [0002] Flotation is a method of separating a certain part of fine mineral particles or powder suspended in a liquid from other solid minerals. The flotation process involves inflating the liquid with air to generate foam, and making the foam with some solid particles float on the surface of the liquid and suspending other mineral solid particles that do not float up in the liquid. The basic principle of flotation is based on the fact that certain mineral particles can adhere to the air bubbles generated by inflating the pulp, while other mineral particles will not adhere to the surface of the air bubbles, and the ore particles adhering to the air bubbles become lighter than the liquid. Therefore, the ore particles rise to the surface of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03B7/00B03D101/06
CPCB03B7/00B03D1/018B03D2201/06
Inventor 刘能云邓冰王洪彬周玉昌张裕书陈超
Owner INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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