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Method and system for separating high-chrome ilmenite

A technology of ilmenite and high chromium, applied in chemical instruments and methods, magnetic separation, solid separation, etc., can solve problems such as unsuitable separation of ilmenite

Inactive Publication Date: 2014-04-23
YUNNAN METALLURGICAL XINLI TITANIUM IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this method is not suitable for sorting ilmenite

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  • Method and system for separating high-chrome ilmenite
  • Method and system for separating high-chrome ilmenite
  • Method and system for separating high-chrome ilmenite

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0030]...

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Abstract

The invention discloses a method and a system for separating high-chrome ilmenite. The method includes: performing gravity separation on raw ores so as to obtain heavy minerals and tailings; performing first magnetic separation on the heavy minerals to obtain ferrotitanium rough concentrate and magnetic minerals; drying the ferrotitanium rough concentrate; roasting the dried ferrotitanium rough concentrate in a fluidized roasting furnace to obtained roasted products; performing second magnetic separation on the roasted products to obtain ilmenite concentrate and tailings. By the method combining fluidized roasting with magnetic separation, the ilmenite concentrate with Cr2O3 content not higher than 0.35wt% and TiO2 content being 46-48wt% can be effectively separated from the high-chrome ilmenite, and the quality requirements of subsequent chloride titanium white industries can be satisfied.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, in particular, the invention relates to a method and system for sorting high-chromium ilmenite. Background technique [0002] The current separation method for ilmenite still needs to be improved. [0003] CN103316761A discloses a method for separating ilmenite and chromite ores, including: ore pre-selection, roasting, and magnetic separation processes, specifically including: the ores containing ilmenite and chromite are separated by gravity separation or "weak separation" Magnetic-strong magnetic” process for sorting, throwing away part of the gangue minerals (tailings) in advance, enriching chromite and ilmenite, forming a mixed coarse concentrate of ilmenite and chromite, and the obtained The mixed coarse concentrate is oxidized and roasted in a rotary kiln, fluidized bed or fluidized bed furnace, cooled naturally, and then the oxidized and roasted material is sorted by a dry medi...

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Application Information

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IPC IPC(8): B03B7/00B03C1/00C22B1/02
Inventor 汪云华刘建良杨文韬贺昌友
Owner YUNNAN METALLURGICAL XINLI TITANIUM IND CO LTD
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