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A method for separating and upgrading ferro-titanium from seaside sandy titanium coarse concentrate

A technology for separation of ferrous titanium and rough concentrate is applied in the field of mineral processing, which can solve the problems of unutilized and separation, and achieve the effects of no chemical pollution, simple process, and guaranteeing the original particle size.

Active Publication Date: 2021-03-05
INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • A method for separating and upgrading ferro-titanium from seaside sandy titanium coarse concentrate

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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, and the iron coarse concentrate 1 is obtained, and the rough separation tailings are subjected to weak magne...

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 titanium coarse concentrate and mix evenly, 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 c...

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Abstract

The invention discloses a method for separating and upgrading titanium and ferro-titanium ore of seashore sandy rough concentrate. The mineral treatment method comprises the following steps: adding a solid reducing agent to the titanium rough concentrate and performing reduction roasting in a rotary kiln to obtain calcined sand; After sand water quenching, excess solid reductant is separated and recovered by shaking table gravity separation to obtain reductant and heavy sand; heavy sand is separated by two-stage weak magnetic separation to obtain iron coarse concentrate and titanium concentrate; iron coarse concentrate is finely ground Finally, weak magnetic separation is used for separation to obtain magnetite concentrate and sub-titanium concentrate. The present invention is a method for separating and upgrading titanium and ferro-titanium rough concentrates containing hematite alteration, so that titanium and iron are efficiently separated, the quality of titanium concentrates is improved, and iron concentrates are recovered at the same time. The process is simple and there is no chemical agent Pollution, the process is easy to operate and easy to promote.

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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Patent Type & Authority Patents(China)
IPC IPC(8): B03B7/00B03C1/02B03C1/015
CPCB03B7/00B03C1/015B03C1/02
Inventor 喻连香汤优优
Owner INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI