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CN1958815A - Biological extract technology for ore of cobalt nickel oxide - Google Patents

Biological extract technology for ore of cobalt nickel oxide Download PDF

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Publication number
CN1958815A
CN1958815A CNA2005101168602A CN200510116860A CN1958815A CN 1958815 A CN1958815 A CN 1958815A CN A2005101168602 A CNA2005101168602 A CN A2005101168602A CN 200510116860 A CN200510116860 A CN 200510116860A CN 1958815 A CN1958815 A CN 1958815A
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China
Prior art keywords
ore
cobalt
nickel
organic acid
nickel oxide
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CN100554444C (en
Inventor
温建康
阮仁满
刘学
宋永胜
董清海
姚国成
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GRINM Resources and Environment Technology Co Ltd
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Beijing General Research Institute for Non Ferrous Metals
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

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Abstract

This invention relates to a biological method for leaching ores of nickel oxide and cobalt oxide. The method comprises: leaching ores of nickel oxide and cobalt oxide by using leaching organism derived organic acid, dissociating the leaching solution containing nickel and cobalt, passing through a separation resin, and separating nickel and cobalt from the eluate by a resin to obtain nickel sulfate and cobalt sulfate products. The method has such advantages as short process, simple equipment, low investment, low cost, no pollution and high recovery rate. The method can treat low-grade ores of nickel oxide and cobalt oxide that cannot be treated by traditional separation process, thus expanding the utility range of resources and increase the recovery rate of nickel and cobalt.

Description

A kind of bioleaching process of ore of cobalt nickel oxide
Technical field
The present invention relates to a kind of bioleaching process of ore of cobalt nickel oxide, particularly a kind of technology of utilizing the multiple organic acid mixture of fungi deutero-to leach ore of cobalt nickel oxide.
Background technology
Nickel resources in the world is nickel oxide ore more than 60%, and the associated valuable metals cobalt.The treatment process of traditional nickel oxide ore can only be handled high-grade nickel oxide ore, and its principle process is that ore reduction, ore grinding, pyrometallurgical smelting or sulfuric acid high pressure leach.There are shortcomings such as energy consumption height, environmental pollution is heavy, metal recovery rate is low in the former; Though the latter has finished commerical test abroad and has carried out industrial scale applications, but can not solve its running cost height all the time, problems such as complex process and calcium magnesium vitriol blocking pipe, and adopt traditional technology to develop low-grade nickel oxide ore and do not have economic worth.The explored nickel minerals of China produces in the resource, and some is low-grade nickel oxide ore, adopts existing conventional process techniques exploitation, no economic benefit.Therefore, be necessary to provide a kind of novel process.
Summary of the invention
The purpose of this invention is to provide a kind of new ore of cobalt nickel oxide extraction process, this technology is different from traditional dressing and smelting process, promptly do not need high melt through high energy consumption, novel process flue dust and toxic gas that exhaust emission is not big, this technical process is short, equipment simple, reduced investment, cost are low, pollution-free, high-recovery has fully utilized low-grade cobalt nickel oxide mineral products resource, can obtain favorable economic benefit.
For achieving the above object, the present invention takes following technical scheme: a kind of bioleaching process of ore of cobalt nickel oxide, and it may further comprise the steps:
(1) preparation of multiple biogenic organic acid mixture
Cultivated in the fungi liquid medium within 5~6 days, 33~37 ℃ of culture temperature stir 100~120 rev/mins of revolutions, obtain multiple biogenic organic acid mixture;
(2) the nickel cobalt in the ore leaches
Adopt the multiple biogenic organic acid mixture in (1) to soak the ore deposit, soaking the ore deposit temperature is normal temperature;
(3) purification of nickel and cobalt containing leach liquor
Leach liquor in (2) is added dilute sulphuric acid regulator solution pH value, and the pH value dissociates the organic acid metal complex at 0.5-1.7, crosses strong acid type cationic resin, obtains nickeliferous behind the wash-out and sulphuric acid soln cobalt.
(4) the nickel cobalt reclaims
Use nickel cobalt separation resin to obtain nickel and cobalt liquor respectively the elute soln in (3), obtain single nickel salt and rose vitriol product then.
(5) organic acid reuse
After the organic acid that disintegrates down concentrated, return the leaching of ore.
The source of bacterial classification can be: contain the waste water of glucide of black-koji mould such as the sewage of sugar refinery discharging, or putrid fruit fruit juice etc. all can.The solid medium that adopts during seed selection can be potato sucrose substratum (potato also can use starch-containing abundant material such as cassava, sweet potato, corn to replace), inserts the fungi that contains black-koji mould and carry out seed selection in solid medium.The liquid nutrient medium of enlarged culturing can adopt the improved Bei Keshi of examining fungi culture medium, and wherein the nutritive substance of Jia Ruing is: NaNO 33g/L, KCl 0.5g/L, K 2HPO 41g/L, MgSO 47H 2O 0.5g/L, W-Gum 20g/L.The spore concentration of inoculation is about 10 4Individual/ml-10 6Individual/ml; Through cultivation, spore germination, aerial mycelium, bacterium liquid contains the black-koji mould mycelium, 33~37 ℃ of described microorganism optimum growth temps.
It can be agitation leach that nickel cobalt in the ore leaches in the step, also can be dump leaching.The ore reduction of agitation leach is ground to granularity less than 74 microns, the leaching pulp density is 5%-35% (weight percent), the ore reduction granularity of dump leaching is-10mm to soak the ore deposit with the clear liquid that contains multiple biogenic organic acid mixture of fungi deutero-or multiple organic acid composition.The kind of fungi is single black-koji mould, and this bacterium produces the acid amount greatly, is good acid-producing bacteria kind.
Soak the ore deposit after 10 days, nickel cobalt leaching yield is respectively more than 63% and 51%.This technology is fine to the selection leaching effect of nickel and cobalt, and iron is had only a small amount of leaching, has reduced subsequent steps such as heavy iron.
Description of drawings
Fig. 1 is the process flow diagram of an embodiment of the present invention
Among Fig. 1,1 is bacterial classification collection operation, 2 is strain improvement, the mycelium of picking black spore is transferred and is cultivated that to obtain biogenic organic acid be biological relieving haperacidity operation 3, add nickel oxide ores and carry out nickel oxide ore leaching operation 4,5 carry out the sulfuric acid displacement operation of dissociating for adding sulfuric acid in the leach liquor, 6 is the purification and impurity removal operation, can carry out ion-exchange by resin cation (R.C.), 7 is nickel cobalt separation circuit, and 8 is nickel cobalt product, among the figure, 9 is the organic acid storage tank, and 10 is the residual body storage bay of biogenic organic acid mixture microorganism after filtering.
Embodiment
As shown in Figure 1,
The invention will be further described below in conjunction with embodiment
Embodiment 1:
This novel process is applied to the Yunnan ore of cobalt nickel oxide, and metalliferous mineral mainly is a noumeite in the ore, secondly is nickel-containing limonite.Gangue mineral mainly is peridotites, serpentine, pyroxene etc.The nickel cobalt contents is respectively nickel 0.93%, cobalt 0.015%, iron 7.09% in the ore.
(1) preparation of multiple biogenic organic acid mixture
The acquisition of original strain: the sugared waste water that contains black-koji mould is drawn flat board and is obtained several bacterial colonys and multiple fungi through preparation fungus solids substratum (film solid media is the potato sucrose substratum).Picking grows the mycelium of black spore, the cultivation of transferring.
The acquisition of exclusive bacterium: use modified version to examine the Bei Keshi liquid nutrient medium, fungi is carried out enlarged culturing.Cultivated in the fungi liquid medium within 5~6 days, 33~35 ℃ of culture temperature stir 100~120 rev/mins of revolutions, obtain multiple biogenic organic acid mixture, use millipore filter to filter the clear liquid that obtains containing multiple organic acid composition.
(2) the nickel cobalt in the ore leaches
The clear liquid that contains multiple organic acid composition in the employing (1) stirs and soaks the ore deposit, pulp density 5%, revolution 100/ minute, extraction temperature normal temperature, extraction time 5-7 days, leaching yield was 50~80%, carry out solid-liquid separation then, discarded stable the storing up of solid residue, leach liquor enters next step operation.
(3) dissociate under the organic acid metal complex compound acidic conditions
Add dilute sulphuric acid regulator solution pH value to 0.5~1.7, the organic acid metal complex is almost completely dissociated, cross strong acidic ion resin (can adopt the resin trade mark is the 732# strongly acidic styrene type cation exchange resin), organic acid combines with hydrogen ion with the organic acid form and flows out earlier, use the dilute sulphuric acid wash-out again, obtain the elute soln (its pH value is 2~3) of sulfur acid nickel and rose vitriol.
(4) the nickel cobalt reclaims
Elute soln pH value in the step (3) is adjusted to 1~1.7, uses nickel cobalt separation resin (as WP-1, the extraordinary ion exchange resin of WP-2 inorganic type, can buy on the market) to obtain nickel and cobalt liquor respectively, crystallization obtains single nickel salt and rose vitriol product then.The rate of recovery is 85~95%
(5) organic acid reuse
After the organic acid that disintegrates down concentrated, return ore and leach.
Embodiment 2:
This novel process is applied to the Yunnan ore of cobalt nickel oxide and carries out dump leaching, and metalliferous mineral is the same in the ore.
(1) preparation of multiple biogenic organic acid mixture
With (1) among the embodiment 1.
(2) the nickel cobalt in the ore leaches
Ore reduction is arrived granularity less than 10mm; Build heap then, build in the heap process, build stack height 1~3m in order to keep ore to form multiple hole, draughty heap naturally as far as possible; Spray the leaching ore with the clear liquid that contains multiple organic acid composition in (1), spray rate is 5-10L/m 2.h.
(3) dissociate under the organic acid metal complex compound acidic conditions
Add dilute sulphuric acid regulator solution pH value to 0.5~about 1.7, the organic acid metal complex is almost completely dissociated, cross strong acidic ion resin, organic acid combines with hydrogen ion with the organic acid form and flows out earlier, use the dilute sulphuric acid wash-out again, obtain the solution of sulfur acid nickel and rose vitriol.
(4) the nickel cobalt reclaims
(3) elute soln pH value is adjusted to 0.5~2.0, uses nickel cobalt separation resin to obtain nickel and cobalt liquor respectively, crystallization obtains solid sulphuric acid nickel and rose vitriol product then.
(5) organic acid reuse
After the organic acid that disintegrates down concentrated, return ore and leach.
Effect of the present invention is: except being conducive to environmental protection, can also be used to develop traditional selecting and smelting technology can not The low-grade nickel oxide cobalt ore that utilizes produces resource, enlarges the scope of utilizing that the nickel cobalt ore produces resource, improves the nickel cobalt and combines Close the rate of recovery.

Claims (9)

1, a kind of bioleaching process of ore of cobalt nickel oxide, it is characterized in that: it may further comprise the steps:
(1), the preparation of multiple biogenic organic acid mixture
Cultivated in the fungi liquid medium within 5~6 days, 33~37 ℃ of culture temperature stir 100~120 rev/mins of revolutions, obtain multiple biogenic organic acid mixture;
(2), the nickel cobalt in the ore leaches
Adopt the multiple biogenic organic acid mixture in (1) to soak the ore deposit, soaking the ore deposit temperature is normal temperature;
(3), the purification of nickel and cobalt containing leach liquor
Leach liquor in (2) is added dilute sulphuric acid regulator solution pH value, and the pH value dissociates the organic acid metal complex at 0.5-1.7, crosses strong acidic ion resin, obtains nickeliferous behind the wash-out and sulphuric acid soln cobalt;
(4), the nickel cobalt reclaims
Use nickel cobalt separation resin to obtain nickel and cobalt liquor respectively the elute soln in (3), obtain single nickel salt and rose vitriol product then;
(5) organic acid reuse
After the organic acid that disintegrates down concentrated, return the leaching of ore.
2, the bioleaching process of a kind of ore of cobalt nickel oxide according to claim 1, after it is characterized in that the described multiple biogenic organic acid mixture that soaks the ore deposit use filters through millipore filter, the clear liquid that contains multiple organic acid composition that obtains is delivered to the leaching operation.
3, the bioleaching process of a kind of ore of cobalt nickel oxide according to claim 1 and 2, it is characterized in that: described preparation to multiple biogenic organic acid mixture is to insert the fungi that contains black-koji mould to carry out in the solid medium that the sucrose of potato or cassava or sweet potato or corn is made, the liquid nutrient medium of enlarged culturing is the improved Bei Keshi of examining fungi culture medium, and wherein the nutritive substance of Jia Ruing is: NaNO 33g/L, KCl 0.5g/L, K 2HPO 41g/L, MgSO 47H 2O 0.5g/L, W-Gum 20g/L; Bacterium liquid contains the black-koji mould mycelium, and the spore concentration of inoculation is 10 4Individual/ml-10 7Individual/ml; 33~37 ℃ of described microorganism optimum growth temps.
4, the bioleaching process of a kind of ore of cobalt nickel oxide according to claim 1 and 2, it is characterized in that: nickel and cobalt leach and comprise agitation leach in the described ore, agitation leach is less than 74 microns with the ore reduction grind size, leaching pulp density is the 5%-35% weight percent, and the pH value is between 3.0-3.5.
5, the bioleaching process of a kind of ore of cobalt nickel oxide according to claim 3, it is characterized in that: nickel and cobalt leach and comprise agitation leach in the described ore, agitation leach is less than 74 microns with the ore reduction grind size, leaching pulp density is the 5%-35% weight percent, and the pH value is between 3.0-3.5.
6, the bioleaching process of a kind of ore of cobalt nickel oxide according to claim 1 and 2, its feature dump leaching are that ore reduction is arrived granularity less than 10mm; Build heap then, build in the heap process in order to keep ore to form multiple hole, draughty heap naturally as far as possible, build stack height 1~3m, spray rate is 5~10L/ (m 2H).
7, the bioleaching process of a kind of ore of cobalt nickel oxide according to claim 3, its feature dump leaching are that ore reduction is arrived granularity less than 10mm; Build heap then, build in the heap process in order to keep ore to form multiple hole, draughty heap naturally as far as possible, build stack height 1~3m, spray rate is 5~10L/ (m 2H).
8, a kind of bioleaching process that contains ore of cobalt nickel oxide according to claim 1 and 2 is characterized in that: described nickel-containing mineral comprise noumeite claim again nepouite (Ni, Mg) 3Si 2O 5(OH) 4, nickel-containing limonite (Fe, Ni) O (OH) .nH 2O, health nickel serpentine (Ni, Mg) 8(OH) 4[Si 4O 10] 6H 2O, nickel chrysotile Ni 6Si 4O 10(OH) 8, thunder nickel serpentine (Mg, Ni, Fe 2+) 3Si 2O 5(OH) 4Deng.
9, a kind of bioleaching process that contains ore of cobalt nickel oxide according to claim 1 and 2 is characterized in that: obtaining the nickeliferous and employed separation resin of sulphuric acid soln cobalt behind the described wash-out is strong acid type cationic resin.
CNB2005101168602A 2005-10-31 2005-10-31 A kind of bioleaching process of ore of cobalt nickel oxide Expired - Fee Related CN100554444C (en)

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2395599C2 (en) * 2007-07-09 2010-07-27 Татьяна Викторовна Башлыкова Procedure for processing silicate cobalt-nickel ore
CN101434920B (en) * 2007-11-13 2010-11-10 北京有色金属研究总院 An strain of low temperature leaching-ore bacteria and process for using the same for low temperature heap leaching of nickel sulfide ore
CN101457292B (en) * 2007-12-10 2012-01-25 北京有色金属研究总院 Process for recovering nickel ion from biochemical lixivium of laterite nickel mine by using room temperature ion liquid
CN102719669A (en) * 2012-07-06 2012-10-10 中国矿业大学(北京) Process for vulcanizing and modifying low-grade oxidized copper ore by using biological vulcanizing agent
CN103509946A (en) * 2012-06-14 2014-01-15 中国科学院过程工程研究所 Method for vulcanizing low-grade oxidized nickel ore with microbiological method
CN104531992A (en) * 2014-12-23 2015-04-22 中南大学 Application of ferric phosphate for reinforcement of bacterial leaching out of nickel sulphide ores
CN104745813A (en) * 2013-12-31 2015-07-01 北京有色金属研究总院 Method for comprehensively recovering nickel and magnesium in bio-leaching process of high-magnesium low-nickel sulfide ore
CN106222410A (en) * 2016-08-30 2016-12-14 合肥常青机械股份有限公司 Prevent locking nut plate of side longitudinal cracking and preparation method thereof
CN106222408A (en) * 2016-08-29 2016-12-14 芜湖常瑞汽车部件有限公司 The preparation method of the right front door snap close fixed plate that tensile strength high-alloy steel materials is made
CN106222409A (en) * 2016-08-29 2016-12-14 合肥常青机械股份有限公司 Seat belt fixed plate that process route reasonable efficiency quality is high and preparation method thereof
CN106244896A (en) * 2016-08-29 2016-12-21 芜湖常瑞汽车部件有限公司 Good automobile front lamp support of the big tensile strength of outer wall hardness and preparation method thereof
CN106282466A (en) * 2016-08-29 2017-01-04 合肥常青机械股份有限公司 Along inner panel reinforcing plate and preparation method thereof under door in hardness height dense structure automobile
CN106282749A (en) * 2016-08-30 2017-01-04 合肥常青机械股份有限公司 Reduce surface roughness oil filler liner plate reducing the raising of allowance intensity and preparation method thereof
CN106319332A (en) * 2016-08-30 2017-01-11 合肥常青机械股份有限公司 Empennage support glossy in surface, attractive, free of dark lines and good in mechanical property, and preparation method thereof
CN106319331A (en) * 2016-08-29 2017-01-11 合肥常青机械股份有限公司 Rear door left hinge reinforcing plate with good-corrosion-resistance easy-to-weld welding zone and preparation method thereof
CN108004401A (en) * 2017-11-30 2018-05-08 武汉理工大学 A kind of method that high-phosphorus iron ore dephosphorization is carried out using Aspergillus niger strain zymotic fluid
CN110055415A (en) * 2019-04-17 2019-07-26 吉林吉恩镍业股份有限公司 A method of metallic nickel in laterite is extracted using microorganism
WO2023244964A1 (en) 2022-06-14 2023-12-21 Cemvita Factory, Inc. Process

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2395599C2 (en) * 2007-07-09 2010-07-27 Татьяна Викторовна Башлыкова Procedure for processing silicate cobalt-nickel ore
CN101434920B (en) * 2007-11-13 2010-11-10 北京有色金属研究总院 An strain of low temperature leaching-ore bacteria and process for using the same for low temperature heap leaching of nickel sulfide ore
CN101457292B (en) * 2007-12-10 2012-01-25 北京有色金属研究总院 Process for recovering nickel ion from biochemical lixivium of laterite nickel mine by using room temperature ion liquid
CN103509946A (en) * 2012-06-14 2014-01-15 中国科学院过程工程研究所 Method for vulcanizing low-grade oxidized nickel ore with microbiological method
CN102719669A (en) * 2012-07-06 2012-10-10 中国矿业大学(北京) Process for vulcanizing and modifying low-grade oxidized copper ore by using biological vulcanizing agent
CN102719669B (en) * 2012-07-06 2016-12-21 中国矿业大学(北京) The technique of biological vulcanizing agent sulfide modifier low grade copper oxide ore
CN104745813A (en) * 2013-12-31 2015-07-01 北京有色金属研究总院 Method for comprehensively recovering nickel and magnesium in bio-leaching process of high-magnesium low-nickel sulfide ore
CN104745813B (en) * 2013-12-31 2017-02-15 北京有色金属研究总院 Method for comprehensively recovering nickel and magnesium in bio-leaching process of high-magnesium low-nickel sulfide ore
CN104531992A (en) * 2014-12-23 2015-04-22 中南大学 Application of ferric phosphate for reinforcement of bacterial leaching out of nickel sulphide ores
CN106244896A (en) * 2016-08-29 2016-12-21 芜湖常瑞汽车部件有限公司 Good automobile front lamp support of the big tensile strength of outer wall hardness and preparation method thereof
CN106222409A (en) * 2016-08-29 2016-12-14 合肥常青机械股份有限公司 Seat belt fixed plate that process route reasonable efficiency quality is high and preparation method thereof
CN106222408A (en) * 2016-08-29 2016-12-14 芜湖常瑞汽车部件有限公司 The preparation method of the right front door snap close fixed plate that tensile strength high-alloy steel materials is made
CN106282466A (en) * 2016-08-29 2017-01-04 合肥常青机械股份有限公司 Along inner panel reinforcing plate and preparation method thereof under door in hardness height dense structure automobile
CN106319331A (en) * 2016-08-29 2017-01-11 合肥常青机械股份有限公司 Rear door left hinge reinforcing plate with good-corrosion-resistance easy-to-weld welding zone and preparation method thereof
CN106282749A (en) * 2016-08-30 2017-01-04 合肥常青机械股份有限公司 Reduce surface roughness oil filler liner plate reducing the raising of allowance intensity and preparation method thereof
CN106319332A (en) * 2016-08-30 2017-01-11 合肥常青机械股份有限公司 Empennage support glossy in surface, attractive, free of dark lines and good in mechanical property, and preparation method thereof
CN106222410A (en) * 2016-08-30 2016-12-14 合肥常青机械股份有限公司 Prevent locking nut plate of side longitudinal cracking and preparation method thereof
CN108004401A (en) * 2017-11-30 2018-05-08 武汉理工大学 A kind of method that high-phosphorus iron ore dephosphorization is carried out using Aspergillus niger strain zymotic fluid
CN110055415A (en) * 2019-04-17 2019-07-26 吉林吉恩镍业股份有限公司 A method of metallic nickel in laterite is extracted using microorganism
WO2023244964A1 (en) 2022-06-14 2023-12-21 Cemvita Factory, Inc. Process

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