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Concentrate manufacturing method and concentrate manufacturing system

Foreign code F190009671
File No. B000025AU
Posted date Jan 22, 2019
Country Australia
Application number 2014277706
Gazette No. 2014277706
Date of filing Aug 1, 2014
Gazette Date Feb 12, 2015
International application number JP2014070377
International publication number WO2016017032
Date of international publication Feb 4, 2016
Title Concentrate manufacturing method and concentrate manufacturing system
Abstract The present concentrate manufacturing method comprises a first mixed water generating process for generating first mixed water in which first water and powdery run-of-mines are mixed (S1), a first separating process for separating first floating minerals, first precipitating minerals, and first filtrate water contained in the first mixed water by passing the first mixed water through a first separating part (S2), a second mixed water generating process for generating second mixed water in which second water that is different from the first water and the first precipitating minerals are mixed (S3), and a second separating process for separating second floating minerals, second precipitating minerals, and second filtrate water contained in the second mixed water by passing the second mixed water through a second separating part, wherein the first filtrate water is used as a portion of the first water in the first mixed water generating process, and the second filtrate water is used as a portion of the second water in the second mixed water generating process.
Outline of related art and contending technology BACKGROUND OF THE INVENTION
Conventionally, a method for beneficiating oxides such as tin ore and tungsten ore by conducting a flotation is known.Patent Literature 1 discloses a method for manufacturing a titanium dioxide concentrate from titanium dioxide ore by conducting a flotation.Further, Non-Patent Literature 1 discloses a method for manufacturing a tungsten concentrate from tungsten ore by conducting a flotation.
FIG. 4 shows a process of a conventional concentrate manufacturing method disclosed in Non-Patent Literature 1.As shown in FIG. 4, when oxides are being beneficiated by conducting a flotation, a first flotation process (a desulfurization flotation process) for removing sulfides contained in ores is performed after the ores are ground by using a ball mill.Next, a tin mineral and a tungsten mineral that are oxides are collected by performing a second flotation process (a tungsten flotation process) for precipitating minerals obtained in the desulfurization flotation process.In the first flotation process, sulfide collectors for floating sulfides are used, and in the second flotation process, oxide collectors for floating oxides are used.
Patent Literature 1: W02012/137359
Non-Patent Literature 1: Kitaru SAWAKI, "The present state of tungsten ore dressing at Fujigatani Mine, Yamaguchi Prefecture." The Journal of the Nippon Kogyo Kai (Nippon Institute of Mining and Metallurgical Engineers), April 1986, vol. 102, no. 1178, pp.230-233
Scope of claims [claim1]
1. A concentrate manufacturing method comprising: a first mixed water generating process for generating first mixed water in which first water and powdery run-of-mines are mixed; a first separating process for separating the first mixed water into first floating minerals, first precipitating minerals, and first filtrate water contained in the first mixed water; a second mixed water generating process for generating second mixed water in which second water that is different from the first water and the first precipitating minerals are mixed; and a second separating process for separating the second mixed water into second floating minerals, second precipitating minerals, and second filtrate water contained in the second mixed water, wherein the first filtrate water is used as a portion of the first water in the first mixed water generating process, and the second filtrate water is used as a portion of the second water in the second mixed water generating process.
[claim2]
2. The concentrate manufacturing method according to Claim 1, wherein the first separating process includes: a first floating mineral separating process for separating the first floating minerals and the first filtrate water contained in the first mixed water by passing a portion of the first mixed water through a first floating mineral separating part, and a first precipitating mineral separating process for separating the first precipitating minerals and the first filtrate water contained in the first mixed water by passing another portion of the first mixed water through a first precipitating mineral separating part, and the second separating process includes: a second floating mineral separating process for separating the second floating minerals and the second filtrate water contained in the second mixed water by passing a portion of the second mixed water through a second floating mineral separating part, and a second precipitating mineral separating process for separating the second precipitating minerals and the second filtrate water contained in the second mixed water by passing another portion of the second mixed water through a second precipitating mineral separating part.
[claim3]
3. The concentrate manufacturing method according to Claim 1 or 2, wherein the second floating mineral separating process includes: conducting a flotation of minerals containing the second floating minerals in the second mixed water at a first temperature, generating third mixed water in which the minerals containing the second floating minerals and the second filtrate water are mixed at a second temperature higher than the first temperature, and separating the second floating minerals contained in the third mixed water by passing a portion of the third mixed water through the second floating mineral separating part.
[claim4]
4. The concentrate manufacturing method according to any one of Claims 1 to 3, wherein the first separating process uses water in which the first filtrate water and water obtained from outside are mixed as the first water, and the second separating process uses water in which the second filtrate water and water obtained from outside are mixed as the second water.
[claim5]
5. The concentrate manufacturing method according to any one of Claims 1 to 4, wherein the first separating part generates the first floating minerals by adding first collectors to the first mixed water, and the second separating part generates the second floating minerals by adding second collectors different from the first collectors to the second mixed water.
[claim6]
6. The concentrate manufacturing method according to Claim 5, wherein the first separating part generates the first floating minerals by making the first collectors containing first organic compounds react with sulfides contained in the run-of-mines, and the second separating part generates the second floating minerals by making the second collectors containing second organic compounds react with oxides contained in the first precipitating minerals.
[claim7]
7. The concentrate manufacturing method according to any one of Claims 1 to 6, further comprising: dry stacking the second precipitating minerals after removing water contained in the second precipitating minerals.
[claim8]
8. The concentrate manufacturing method according to Claim 7, further comprising: generating solid materials by mixing the first floating minerals with cement or fly ash; and dry stacking on the solid materials.
[claim9]
9. A concentrate manufacturing system comprising: a first separating part configured to separate first mixed water, in which first water and powdery run-of-mines are mixed, into first floating minerals, first precipitating minerals, and first filtrate water; a second separating part configured to separate second mixed water, in which second water that is different from the first water and the first precipitating minerals are mixed, into second floating minerals, second precipitating minerals, and second filtrate water; a first water storing part configured to store the first filtrate water; and a second water storing part configured to store the second filtrate water, wherein the first separating part uses water in the first water storing part as the first water and the second separating part uses water in the second water storing part as the second water.
  • Applicant
  • Japan Oil, Gas and Metals National Corporation
  • Inventor
  • Nakamura, Iichi
  • Takahashi, Tatsuru
IPC(International Patent Classification)

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