Weathering type ilmenite beneficiation treatment method

A processing method and technology for ilmenite, applied in chemical instruments and methods, flotation, magnetic separation, etc., can solve the problems of loss of fine-grained titanium minerals, low resource utilization rate, etc. good effect

Active Publication Date: 2018-12-14
KUNMING METALLURGY INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the development of existing weathered ilmenite, serious loss of fine-grained titanium minerals and low resource utilization rate, the present invention aims to provide a mineral processing method for weathered ilmenite

Method used

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  • Weathering type ilmenite beneficiation treatment method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Composition of weathered ilmenite raw ore: TiO 2： 6.93%, Fe: 14.82%, CaO: 3.02%, MgO: 2.09%, Al 2 o 3 : 8.69%, SiO 2 : 38.41%.

[0034] The mineral processing method of the weathered ilmenite (raw ore) comprises the following steps:

[0035] (1) Stir the raw ore with a mixer in advance for 20 minutes;

[0036] (2) After stirring, the ore pulp is pre-classified through a vibrating screen with a screen hole of 0.5 mm, and the on-screen material enters a ball mill, and the ball mill and vibrating screen are sieved to form a closed-circuit grinding process, and the fineness of the grinding product is -0.074 mm, accounting for 40%;

[0037] (3) The products under the sieve are magnetically separated by a weak magnetic separator with a magnetic field strength of 0.2T. Weak magnetic separation tailings are obtained after removing ferromagnetic minerals by weak magnetic separation;

[0038] (4) The tailings of the weak magnetic separation are magnetically separated and di...

Embodiment 2

[0044] Composition of weathered ilmenite raw ore processed (including): TiO 2 : 4.02%, Fe: 16.26%, CaO: 2.32%, MgO: 5.37%, Al 2 o 3 : 9.32%, SiO 2 : 42.27%.

[0045] The mineral processing method of the weathered ilmenite (raw ore) comprises the following steps:

[0046] (1) Scrub the raw ore in advance with a scrubber for 10 minutes;

[0047] (2) After scrubbing, the pulp is pre-classified through a vibrating screen with a sieve hole of 0.4mm, and the on-screen material enters the ball mill, and the ball mill and the vibrating screen form a closed circuit, and the fineness of the grinding product is -0.074mm accounting for 45%;

[0048] (3) The products under the sieve are magnetically separated by a weak magnetic separator with a magnetic field strength of 0.1T. Weak magnetic separation tailings are obtained after removing ferromagnetic minerals by weak magnetic separation;

[0049] (4) The tailings of the weak magnetic separation are magnetically separated and discard...

Embodiment 3

[0055] A kind of beneficiation processing method of weathering type ilmenite, comprises the following steps:

[0056] A. Pre-screening: The raw ore is stirred or scrubbed with a mixer in advance, and the pulp after stirring or scrubbing is pre-screened through a vibrating screen with a sieve hole of 0.3mm, and the oversize enters a ball mill. The degree is -0.074mm and accounts for 40%, and the ball mill and the vibrating screen are classified to form a closed circuit; the raw ore includes the following components by weight percentage: TiO 2 4%, Fe10%, SiO 2 35%, Al 2 o 3 8%;

[0057] B, weak magnetic separation: the product under the sieve is subjected to weak magnetic separation, the magnetic field strength of weak magnetic separation is 0.1T, iron concentrate and tailings of weak magnetic separation are obtained after weak magnetic separation removes ferromagnetic minerals; The grade is Fe: 50%, TiO 2 : 12%;

[0058] C. Strong magnetic separation: the weak magnetic se...

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Abstract

The invention discloses a weathering type ilmenite beneficiation treatment method. The beneficiation treatment method comprises the following steps that A prescreening is carried out; B, low intensitymagnetic separation is carried out; C, high intensity magnetic separation is carried out; D, preliminary classification is carried out; and E, flotation is carried out. According to the weathering type ilmenite beneficiation treatment method, the titanium recovery rate is effectively improved, titanium concentrate and iron ore concentrate are obtained at the same time, the technology is simple, the technological process is easily operated, and popularization is facilitated. Beneficiation according to the technical scheme is adopted, the particle size of monomer separation fine-fraction ilmenite in raw ore is protected, and excessive abrasion is avoided; the high intensity magnetic separation technology is used for discarding tailings, the follow-up handling quantity is greatly reduced, and the ore grinding cost and the beneficiation cost are reduced; and an environment-friendly collecting agent KM221 which is good in selectivity, low in cost, non-poisonous and harmless is adopted forflotation recovering of ilmenite ore, fine fraction titanium resources which are difficult to recover through the traditional technological process are effectively recovered, and the weathering type ilmenite resource using rate is improved.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to a processing method of ilmenite ore, in particular to a beneficiation processing method of weathered ilmenite. Background technique [0002] China's titanium resource reserves rank first in the world, but 95% of them occur in primary vanadium-titanium magnetite, mainly distributed in Panxi and Chengde regions; followed by ilmenite placer, mainly distributed in Yunnan, Hainan and Guangdong and Guangxi , the mines are scattered. There are 30 proven ilmenite deposits in Yunnan Province, including 15 large ones, 5 medium ones, and 10 small ones. The discovered ilmenite reserves are 5.561×10 7 t, low in calcium and magnesium, is a high-quality titanium placer. [0003] The weathered ilmenite in Yunnan Province is relatively completely weathered and heavy in mud. The gangue minerals are mostly composed of kaolin, quartz and goethite, and 60% of the titanium min...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/00B07B1/28B03C1/00B03D1/00
CPCB03B9/00B03C1/00B03D1/00B07B1/28
Inventor 汤优优王祖旭唐鑫朱从杰闫森
Owner KUNMING METALLURGY INST
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