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Method for titanium and iron separation and upgrading of titanium rough concentrate of beach placer

A technology for the separation of titanium and iron and coarse concentrate, which is applied in the field of mineral processing, can solve the problems of unutilized and separated, and achieve the effects of no chemical pollution, simple process and easy process

Active Publication Date: 2019-10-01
广东省科学院资源利用与稀土开发研究所
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0005] For the hematite-containing ilmenite, it is difficult to effectively separate titanium and iron by conventional beneficiation methods, resulting in many similar seaside sands in foreign countries not being utilized

Method used

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  • Method for titanium and iron separation and upgrading of titanium rough concentrate of beach placer

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Composition of seashore titanium sand rough concentrate: TiO 2 42.20%, Fe 38.76%, CaO 0.20%, MgO 0.62%, Al 2 o 3 0.82%, SiO 2 2.29%.

[0034] Above-mentioned raw ore is passed through following processing steps:

[0035] (1) Add 15% reduced carbon powder and mix evenly with titanium coarse concentrate, use rotary kiln equipment to carry out reduction roasting, the roasting temperature is 875 ° C, and the reduction roasting time is 55 minutes to obtain calcined sand;

[0036] (2) The calcined sand obtained by reduction roasting is cooled by water quenching, and then the excessive reducing agent in the calcined sand is recovered by a shaking table gravity separation process, and heavy sand is obtained;

[0037] (3) The heavy sand is separated by a two-stage weak magnetic separation process. The strength of the weak magnetic separation rough separation is 0.15T to obtain iron coarse concentrate 1. The rough separation tailings are subjected to weak magnetic separation ...

Embodiment 2

[0042] Composition of seashore titanium sand rough concentrate: TiO 2 : 43.07%, Fe: 41.47%, CaO: 0.18%, MgO: 0.51%, Al 2 o 3 : 0.83%, SiO 2: 1.85%.

[0043] Above-mentioned raw ore is passed through following processing steps:

[0044] (1) Add 25% reduced carbon powder and mix evenly with titanium coarse concentrate, and use rotary kiln equipment to carry out reduction roasting, the roasting temperature is 750 ° C, and the reduction roasting time is 85 minutes to obtain calcined sand;

[0045] (2) The calcined sand obtained by reduction roasting is cooled by water quenching, and then the excessive reducing agent in the calcined sand is recovered by a spiral chute gravity separation process, and heavy sand is obtained;

[0046] (3) The heavy sand is separated by two-stage weak magnetic separation process, the strength of weak magnetic rough separation is 0.10T, and iron coarse concentrate 1 is obtained. The strength is 0.30T, and the iron coarse concentrate 2 and titanium ...

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Abstract

The invention discloses a method for titanium and iron separation and upgrading of titanium rough concentrate of beach placer. The method comprises the following steps of adding a solid reducing agentinto the titanium rough concentrate, and carrying out reduction roasting by using a rotary kiln to obtain calcine; carrying out water quenching on the calcine, then carrying out gravity separation onthe calcine through a shaking table to recover excessive solid reducing agent to obtain a reducing agent and heavy concentrate; performing two-stage low-intensity magnetic separation on the heavy concentrate to obtain iron rough concentrate and titanium concentrate; and carrying out fine grinding on the iron rough concentrate, and carrying out separation by adopting low-intensity magnetic separation to obtain magnetite concentrate and secondary titanium concentrate. According to the method for titanium and iron separation and upgrading of the titanium rough concentrate containing hematite alteration, titanium and iron are efficiently separated, the quality of the titanium concentrate is improved, meanwhile, the iron concentrate is recovered, the process is simple, no medicament pollutionexists, the process is easy to operate, and the method is convenient to popularize.

Description

technical field [0001] The invention belongs to the technical field of mineral treatment, in particular to a method for separating and upgrading ferro-titanium of rough concentrate containing hematite, and in particular relates to a method for separating and upgrading ferro-titanium of titanium rough concentrate containing seaside sand method. Background technique [0002] Titanium is widely used in industrial production, modern national defense and daily life, and the production of its raw materials has received considerable attention. As the main source of titanium resources, ilmenite is the main raw material for the production of titanium sponge and titanium dioxide, and is also an indispensable raw material for the production of ferro-titanium and welding electrodes. Titanium deposits with industrial value can be summarized into two categories: magmatic ilmenite deposits (vein mines) and titanium placer deposits. The coastal placer is the most industrially valuable tit...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03C1/02B03C1/015
CPCB03B7/00B03C1/015B03C1/02
Inventor 喻连香汤优优
Owner 广东省科学院资源利用与稀土开发研究所
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