CN100540692C - A kind of method of high sulfide pyrite powder desulfurization - Google Patents

A kind of method of high sulfide pyrite powder desulfurization Download PDF

Info

Publication number
CN100540692C
CN100540692C CNB2007100360789A CN200710036078A CN100540692C CN 100540692 C CN100540692 C CN 100540692C CN B2007100360789 A CNB2007100360789 A CN B2007100360789A CN 200710036078 A CN200710036078 A CN 200710036078A CN 100540692 C CN100540692 C CN 100540692C
Authority
CN
China
Prior art keywords
iron ore
tons
gram
concentrate
pyrite powder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CNB2007100360789A
Other languages
Chinese (zh)
Other versions
CN101157979A (en
Inventor
石云良
苏木清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiamen Xin'ande Group Co., Ltd
Changsha Research Institute of Mining and Metallurgy Co Ltd
Original Assignee
Xiamen Xin'ande Group Co Ltd
CHANGSHA INST OF MINING & METALLURGY
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiamen Xin'ande Group Co Ltd, CHANGSHA INST OF MINING & METALLURGY filed Critical Xiamen Xin'ande Group Co Ltd
Priority to CNB2007100360789A priority Critical patent/CN100540692C/en
Publication of CN101157979A publication Critical patent/CN101157979A/en
Application granted granted Critical
Publication of CN100540692C publication Critical patent/CN100540692C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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

Abstract

The method of high sulfide pyrite powder desulfurization of the present invention is applicable to the desulfurization in the powdered iron ore that contains sulphur iron ore and the recovery of sulfide flotation mine tailing.When sulphur in the iron ore concentrate (mainly being pyrrhotite) reaches 15% when above, by adopting the principle of asynchronous sorting, iron ore concentrate is reached more than 65%, and wherein sulphur content is reduced to below 0.3%, desulfurization degree surpasses 90%.It is simple that this method has a regime of agent, little to the acid corrosion of equipment, the characteristics of low operation cost.

Description

A kind of method of high sulfide pyrite powder desulfurization
Technical field
The present invention relates to a kind of method of high sulfide pyrite powder desulfurization, especially sulfur-bearing is up to the method for the iron ore concentrate desulfurization more than 15%.
Background technology
Sulphur can make steel produce red brittleness, steel is at high temperature forged produce fracture when rolling, so sulphur content generally must not surpass 0.05% in the steel.Sulphur in this iron ore concentrate that just requires to make steel can not be too high.
At present in the high sulfide pyrite sulfur method at based on pyrite and sulfur-bearing after the method for the employing of the iron ore 5% below physical concentration, biological metallurgy and pyrogenic process was carried out processing, sulphur content is reduced to below 0.3%.But at based on the iron ore of pyrrhotite the time,, and enter in the lump in the magnetite concentrate, can make that sulphur content reaches more than 15% in the iron ore concentrate because the magnetic contrast of pyrrhotite and magnetite is less.And pyrrhotite easily argillization oxidation in grinding process, its flotability is relatively poor, activate pyrrhotite although in floatation process, add a large amount of sulfuric acid (more than the 5000g/t), but the iron ore concentrate sulphur content of producing still greater than 1%, high person even reach 3%~5%, and high sulfuric acid consumption makes equipment perishable, the industrial operation difficulty.Therefore, in fact, this class ore does not have the good treatment method at present.Sulfur-bearing is not appeared in the newspapers up to the method for the iron ore concentrate desulfurization more than 15% yet.
Summary of the invention
The object of the present invention is to provide a kind of regime of agent simple, little to the acid corrosion of equipment, the method for the high sulfide pyrite powder desulfurization that production cost is low.
Technical scheme
Because the washability in the ore between magnetite and pyrrhotite itself and magnetite and the pyrrhotite has certain difference, the present invention is by adopting asynchronous beneficiation method, the pyrrhotite and the magnetite of easily choosing are preferentially selected, separately difficult again magnetite and the pyrrhotite that selects, thus qualified iron ore concentrate and sulphur concentrate obtained.
The concrete grammar of high sulfide pyrite powder desulfurization is: (1) adds 500~1000 gram/tons in high sulfide pyrite powder sulfuric acid carries out mixture sizes mixing, and pulp density is 50~60%; (2) add the butyl xanthate of 20~100 gram/tons and the pine camphor oil of one or both collecting agents in the amyl group xanthate and 10~50 gram/tons and one or both pore forming materials in the 2# oil and carry out flotation, floatingly select sulphur concentrate 1, magnetic separation obtains iron ore concentrate 1 and refractory magnetite and pyrrhotite; (3) one or more dispersion agents that add in refractory magnetite and pyrrhotite in the humic acids, water glass, Sodium hexametaphosphate 99 of 500~3000 gram/tons are sized mixing, add the butyl xanthate of 20~100 gram/tons and the pine camphor oil of one or both collecting agents in the amyl group xanthate and 10~50 gram/tons and one or both pore forming materials in the 2# oil again and carry out flotation, obtain sulphur concentrate 2 and iron ore concentrate after the flotation respectively; When (4) iron concentrate grade that obtains when above-mentioned (3) does not reach requirement, can obtain final iron ore concentrate 2 to iron ore concentrate magnetic separation again.
The magnetic separation magneticstrength is 300~500 oersteds in the aforesaid method step 2, and the magnetic separation magneticstrength is 800~1200 oersteds in the step 4.
Characteristics of the present invention are: the present invention has that flowage structure is simple, cost is low, high efficiency, eco-friendly characteristics, adopts the technology of the present invention, the iron ore concentrate desulfurization degree is reached more than 90%, and make the high sulfide pyrite powder (stone) that can not utilize obtain comprehensive utilization.
Description of drawings
Fig. 1 is the process flow sheet of high sulfide pyrite powder sulfur method of the present invention
Specific embodiment
Embodiment: certain plumbous zinc ore milltailings contains magnetite, contains a large amount of repressed pyrrhotite simultaneously, by low intensity magnetic separation, obtains the collective concentrate of magnetite and pyrrhotite, and this concentrate iron content is 57.13%, and sulphur content is up to 16.28%.Add the sulfuric acid of 750g/t under ore pulp 50% concentration, sized mixing 5 minutes, add the 2# oil of 50g/t butyl xanthate, 30g/t again, floatingly select and easily select sulfide mineral, promptly the sulphur concentrate 1; Under magneticstrength 500 oersted conditions, obtain magnetite concentrate 1; Magnetic tailing adds humic acids 2000g/t and disperses ore pulp, adds the 2# oil of 100g/t butyl xanthate, 50g/t again, the difficult floating pyrrhotite of flotation, obtain second sulphur concentrate, flotation tailings enters magnetic separation again, and magneticstrength 1000 oersteds obtain second iron ore concentrate.Industrial production results sees Table 1.
The desulfurization industrial production results of table 1 high sulfide pyrite powder

Claims (3)

1. the sulfur method of a high sulfide pyrite powder, it is characterized in that: described sulfur method step is
(1) sulfuric acid that adds 500~1000 gram/tons in high sulfide pyrite powder carries out mixture and sizes mixing, and pulp density is 50~60%;
(2) add the butyl xanthate of 20~100 gram/tons and the pine camphor oil of one or both collecting agents in the amyl group xanthate and 10~50 gram/tons and one or both pore forming materials in the 2# oil and carry out flotation, floatingly select sulphur concentrate 1, magnetic separation obtains iron ore concentrate 1 and refractory magnetite and pyrrhotite;
(3) one or more dispersion agents that add in refractory magnetite and pyrrhotite in the humic acids, water glass, Sodium hexametaphosphate 99 of 500~3000 gram/tons are sized mixing, add the butyl xanthate of 20~100 gram/tons and the pine camphor oil of one or both collecting agents in the amyl group xanthate and 10~50 gram/tons and one or both pore forming materials in the 2# oil again and carry out flotation, obtain sulphur concentrate 2 and iron ore concentrate after the flotation respectively;
When (4) iron concentrate grade that obtains when step (3) does not reach requirement,, obtain final iron ore concentrate 2 to iron ore concentrate magnetic separation again.
2. according to the sulfur method of high sulfide pyrite powder described in the claim 1, it is characterized in that: step (2) magnetic separation magneticstrength is 300~500 oersteds.
3. according to the sulfur method of high sulfide pyrite powder described in the claim 1, it is characterized in that: step (4) magnetic separation magneticstrength is 800~1200 oersteds.
CNB2007100360789A 2007-11-08 2007-11-08 A kind of method of high sulfide pyrite powder desulfurization Active CN100540692C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2007100360789A CN100540692C (en) 2007-11-08 2007-11-08 A kind of method of high sulfide pyrite powder desulfurization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2007100360789A CN100540692C (en) 2007-11-08 2007-11-08 A kind of method of high sulfide pyrite powder desulfurization

Publications (2)

Publication Number Publication Date
CN101157979A CN101157979A (en) 2008-04-09
CN100540692C true CN100540692C (en) 2009-09-16

Family

ID=39306214

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2007100360789A Active CN100540692C (en) 2007-11-08 2007-11-08 A kind of method of high sulfide pyrite powder desulfurization

Country Status (1)

Country Link
CN (1) CN100540692C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103143434A (en) * 2011-12-06 2013-06-12 广东省大宝山矿业有限公司 Method for producing high-quality sulfur concentrate by pyrrhotite-containing tailing obtained by copper-sulfur ore copper separating pyrrhotite

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102896049B (en) * 2012-11-06 2015-02-25 永利高盛(北京)环保科技有限公司 Beneficiation method and system
CN103861741A (en) * 2012-12-14 2014-06-18 北京矿冶研究总院 Carbonaceous mineral inhibitor and method for flotation of multi-metal sulfide ores
CN102974469B (en) * 2012-12-21 2014-12-10 长沙矿冶研究院有限责任公司 Method for reducing sulfur in iron ore concentrate through flotation
CN103160685B (en) * 2013-02-22 2015-07-15 厦门大学 Method of recycling iron fine powder from sulfate residue
JP6009999B2 (en) * 2013-06-27 2016-10-19 株式会社神戸製鋼所 Method for producing low sulfur-containing iron ore
CN103567077A (en) * 2013-11-08 2014-02-12 昆明川金诺化工股份有限公司 Method for concentrating sulfur with fluorosilicic acid as activator of pyrite
CN104069937A (en) * 2014-05-16 2014-10-01 马钢集团设计研究院有限责任公司 Ore dressing method for removing pyrrhotite from iron ore
CN104353546A (en) * 2014-11-11 2015-02-18 安徽新中远化工科技有限公司 System for recycling sulphur mine resource in pyrite slurry
CN104624380A (en) * 2015-01-05 2015-05-20 云南铜业胜威化工有限公司 Sulphur dressing method adopting titanium dioxide production waste water as activating agents
CN104646175A (en) * 2015-03-13 2015-05-27 沈瑾 Mineral separation method of low-grade kieselguhr
CN105483374B (en) * 2015-11-20 2017-10-10 罗光臣 The method of ore simultaneous leaching flotation in flotation cell is leached
CN108745625B (en) * 2018-05-31 2020-04-21 铜陵有色金属集团股份有限公司 Method for recycling magnetite, monoclinic pyrrhotite, hexagonal pyrrhotite and pyrite step by step
CN110201798A (en) * 2019-04-19 2019-09-06 铜陵有色金属集团股份有限公司 A kind of DC activator and the acidless craft for sorting the sulphur, iron mineral that are inhibited by high-alkali and high calcium
CN110293000A (en) * 2019-06-21 2019-10-01 铜陵有色金属集团股份有限公司 A kind of sulfur method and desulphurization system of iron ore concentrate
CN110586337A (en) * 2019-08-29 2019-12-20 江西理工大学 Low-alkali flotation-followed-magnetism-based beneficiation method for pyrite containing magnetism
CN110586335A (en) * 2019-08-29 2019-12-20 江西理工大学 High-alkali magnetic-first-floating-later-magnetic pyrite beneficiation method
CN110947516A (en) * 2019-12-21 2020-04-03 宝钢集团新疆八一钢铁有限公司 Zinc reduction method for iron ore concentrate
CN111437990A (en) * 2020-04-15 2020-07-24 首钢京唐钢铁联合有限责任公司 High-sulfur iron ore desulfurization process and system and iron ore powder
CN111744676A (en) * 2020-07-02 2020-10-09 沈阳五寰工程技术有限公司 Acid pretreatment-flotation method for high-sulfur magnetite concentrate desulfurization

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103143434A (en) * 2011-12-06 2013-06-12 广东省大宝山矿业有限公司 Method for producing high-quality sulfur concentrate by pyrrhotite-containing tailing obtained by copper-sulfur ore copper separating pyrrhotite

Also Published As

Publication number Publication date
CN101157979A (en) 2008-04-09

Similar Documents

Publication Publication Date Title
CN100540692C (en) A kind of method of high sulfide pyrite powder desulfurization
Ma Froth flotation of iron ores
CN105435953A (en) Beneficiation method for low-grade mixed copper ore containing molybdenum
CN101831559B (en) Flotation and metallurgy method of high-bonding-ratio carbonate gangue-type oxygen-sulfur mixed copper ore
RU2542072C1 (en) Method for improvement of surface behaviour contrast for gold ore sulphide minerals
CN107326172B (en) A kind of beneficiation method of high-carbon microfine submicro gold mine
CN103551245B (en) Complex multi-metal micro fine particle sulphide ore is carried out to the beneficiation method of synthetical recovery
CN102240600A (en) Method for separating and recovering sulfur and arsenic from sulfur and arsenic containing materials
CN101905190A (en) Method for separating collophanite
CN102357424A (en) Extracting method for copper in slag of copper smelting converter
CN109158214B (en) Flotation separation process for copper-zinc sulfide ore
CN101274306B (en) Complete flotation mineral separation process for polymetallic siderite
CN103386359A (en) Beneficiation method for copper oxide cobalt ores
CN108262156B (en) Beneficiation method for high-argillaceous and high-alkaline gangue low-grade refractory copper oxide ore
CN110170381B (en) Beneficiation method for recovering cassiterite from tin-copper paragenic ore
Phetla et al. A multistage sulphidisation flotation procedure for a low grade malachite copper ore
CN104259009A (en) Copper-iron-sulfur separation composite inhibitor and ore dressing method of high-sulfur refractory copper-iron ore
CN102151607A (en) Joint magnetic flotation sorting method for complex magnetic pyrite copper-containing pyrite ore
CN104815746A (en) Recovery method of high-iron highly-argillaceous alkaline gangue refractory oxide copper ore
CN106269290A (en) The method for floating of decopperized lead zinc from highgrade pyrite concentrate
CN103447155A (en) Blue chalcocite and pyrite beneficiation method and collecting agent used for the same
CN103041925A (en) Application method of combined reagent in copper and sulphur separation of ore beneficiation of covellite predominantly copper sulfide ore
CN1017686B (en) Ore-dressing method to separate multi-metal complex minerals of cu, pb and zn
CN103691566A (en) Method for performing flotation separation on garnet from magnetic separation brown iron ore concentrate
CN104148175B (en) Mineral processing technology for siderite-magnetite mixed ore

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: 410012 Hunan province Changsha Lushan Road No. 966

Patentee after: Changsha Research Institute of Mining and Metallurgy Co., Ltd.

Patentee after: Xiamen Xin'ande Group Co., Ltd

Address before: 410012 Hunan province Changsha Lushan Road No. 966

Patentee before: Changsha Inst. of Mining &. Metallurgy

Patentee before: Xiamen Xin'ande Group Co., Ltd

C56 Change in the name or address of the patentee

Owner name: CHANGSHA RESEARCH INSTITUTE OF MINING AND METALLUR

Free format text: FORMER NAME: CHANGSHA RESEARCH INSTITUTE OF MINING AND METALLURGY