CN105435954A - Method for increasing copper and nickel recycling rate from copper-nickel sulfide ore flotation middlings - Google Patents

Method for increasing copper and nickel recycling rate from copper-nickel sulfide ore flotation middlings Download PDF

Info

Publication number
CN105435954A
CN105435954A CN201510899106.4A CN201510899106A CN105435954A CN 105435954 A CN105435954 A CN 105435954A CN 201510899106 A CN201510899106 A CN 201510899106A CN 105435954 A CN105435954 A CN 105435954A
Authority
CN
China
Prior art keywords
flotation
copper
copper nickel
concentrate
nickel sulfide
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.)
Granted
Application number
CN201510899106.4A
Other languages
Chinese (zh)
Other versions
CN105435954B (en
Inventor
童雄
杨波
谢贤
吕向文
韩彬
吕昊子
王晓
孔云
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.)
Kunming University of Science and Technology
Original Assignee
Kunming University of Science and Technology
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 Kunming University of Science and Technology filed Critical Kunming University of Science and Technology
Priority to CN201510899106.4A priority Critical patent/CN105435954B/en
Publication of CN105435954A publication Critical patent/CN105435954A/en
Application granted granted Critical
Publication of CN105435954B publication Critical patent/CN105435954B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention discloses a method for increasing the copper and nickel recycling rate from copper-nickel sulfide ore flotation middlings. The technical problems that, the copper-nickel sulfide ore middling circulation amount is large, floatability is poor, and recycling is hard can be solved, meanwhile, the adverse effect of magnesium-containing silicate to flotation of copper-nickel sulfide ore can be lowered, the content of magnesium oxide in concentrate and the usage amount of inhibitor are reduced, and the copper and nickel recycling rate is increased. In the copper-nickel sulfide ore flotation process, selective acid leaching magnesium removing treatment is carried out on the middlings (scavenging concentrate and cleaner tailings) in the copper-nickel sulfide ore through acid adding under the normal temperature and the normal pressure, and therefore the circulation number of middlings floating hardly is reduced, and the adverse effect of magnesium-containing silicate on flotation of copper-nickel sulfide ore is lowered. After leaching is finished, flotation is carried out on leaching residues, the copper and nickel recycling rate is increased, and foam products obtained through two times of flotation are combined to serve as low-grade concentrate. The method is reasonable in technology and simple in process, and industrial implementation is easy.

Description

A kind of method improving copper nickel sulfide mineral flotation chats copper nickel recovery
Technical field
The present invention relates to a kind of method improving copper nickel sulfide mineral flotation chats copper nickel recovery, particularly reduce the method containing magnesium silicate, copper nickel sulfide mineral flotation adverse effect being improved to copper nickel recovery, use the method to reduce, containing magnesium silicate, the circulation of chats in flotation flowsheet is floated to the adverse effect of cu-ni sulphide ore flotation and difficulty, reduce magnesian content in concentrate, improve copper nickel recovery.
Background technology
China's copper nickel sulfide mineral aboundresources, but most copper nickel sulfide mineral has the feature of high magnesium iron, and its main gangue mineral is that serpentine, the tremolite, chlorite and talcum etc. contain the high silicate mineral of MgO.In the floatation process of copper nickel sulfide mineral, because of containing magnesium silicate mineral surfaces lotus positive electricity, easily with electronegative copper-nickel sulfide mineral generation heteromophism coacervation, worsen the floatation process of copper nickel sulfide mineral, cause the rising of content of MgO in concentrate.
In addition, because the embedding cloth relation of valuable mineral in copper nickel sulfide mineral is complicated, for improving the degree of dissociation of target minreal, in production practices, sorting of copper nickel sulfide mineral adopts multistage grinding, multistage flotation flowsheet more, also therefore a large amount of floating chats of micro-size fraction difficulty is produced, there is following characteristics in the recovery of copper nickel sulfide mineral flotation chats: in (1) chats, copper nickel thing mostly is lean intergrowth, and embedding cloth relation is complicated, disseminated grain size is thin; (2) chats clay content is large, ore grain size is fine; (3) alteration is serious, and serpentine, the tremolite etc. are high containing magnesium silicate content, and content of MgO is generally up to more than 18%.In current most of copper nickel sulfide mineral flotation process, all that this part difficult floating chats is back in upper level flotation operation step by step, but this mode not only increases serpentine and difficulty floats the circulation of chats in flotation flowsheet, affect the flotation of copper nickel thing, reduce the recovery rate in ore-dressing of copper nickel, easily cause the rising of content of MgO in concentrate simultaneously.Therefore, how to find a kind of method effectively and reasonably and handle this part difficult floating chats well, and reduce the adverse effect of serpentine to floatation process, there is important practical significance.
Containing magnesium silicate to the content of MgO in the adverse effect of copper nickel flotation and copper-nickel concentrate for reducing serpentine etc., how reaching this purpose by adding a large amount of floatation regulators at present.Main adjusting agent is divided into sludge dispersant and the inhibitor containing magnesium silicate, as carboxymethyl cellulose (CMC), sodium carbonate, sodium metasilicate and calgon etc.But a large amount of uses of inhibitor, easily to the raw inhibitory action of copper nickel produce, affect the recovery of nickel and copper, make tailing filtration sedimentation difficulty simultaneously.Therefore, how while not affecting copper nickel recovery, reduce the difficult problem that serpentine etc. is cu-ni sulphide ore ore dressing to the adverse effect of flotation and the content that reduces MgO in concentrate containing magnesium silicate always.Liu Yu waits by force people by adding the concentrated sulfuric acid at nickel ore concentrate, magnesia in the concentrated sulfuric acid and concentrate is reacted, produce magnesium sulfate, carrying out Separation of Solid and Liquid, make it be stranded in sulfuric acid solution to be separated with concentrate, but because in concentrate, ambrose alloy content is higher, and the sulfuric acid concentration that the method uses is higher, easily cause nickel and copper dissolution loss (number of patent application 201210526480.6) in concentrate.The people such as Feng Qiming adopt ultrasonic wave to produce supersonic jet and cavitation to raw ore slurry or add the ore pulp after collecting agent and carry out ultrasonic pretreatment, thus reduce serpentine etc. containing the absorption of magnesium silicate on nickel sulfide mineral surface and cover cap, and then magnesian content in reduction concentrate, though the method can reduce the loss of nickel and copper, reduce the content of MgO in concentrate, but be difficult to industrial applications (number of patent application 201310268992.1).The people such as Zhang Guofan are according to containing the high feature of magnesium silicate surface potential, have developed a kind of organic assembling inhibitor EP, rely on a large amount of-OH of the water-soluble rear generation of EP and-COOH, positive potential containing magnesium silicate surface is reduced greatly, prevent the carrying out hindering flotation containing forming " heterocoagulation " phenomenon between magnesium silicate and copper nickel composition granule, strengthen the suppression containing magnesium silicate gangue mineral, but the method inhibitor large usage quantity, easily inhibitory action is produced to part copper nickel mineral and intergrowth particle, affect ambrose alloy recovery (Zhang Guofan etc. mineral products protection and development, 1999, (3): 28-31).
The present invention is according to the physical property feature containing magnesium silicate such as the enrichment discipline of copper nickel in copper nickel sulfide mineral and serpentine, the flotation chats of high serpentine content is processed separately, instead of be back to upper level flotation operation, decrease serpentine etc. and circulate in flotation flowsheet containing magnesium silicate.Meanwhile, flotation chats is carried out the process of selective acidleach de-magging at normal temperatures and pressures, while guarantee copper and mickel loss late is lower, obviously can reduces magnesian content in concentrate, improve the sorting index of copper nickel.
Summary of the invention
The object of this invention is to provide a kind of method improving copper nickel sulfide mineral flotation chats copper nickel recovery, enrichment discipline according to copper and mickel in copper nickel sulfide mineral floatation process and the physical property feature containing magnesium silicate, a certain amount of acid is used to carry out the process of selective acidleach de-magging to chats at normal temperatures and pressures, again flotation is carried out to chats, instead of be back to upper level flotation operation; This method reduce serpentine etc. containing magnesium silicate to the adverse effect of floatation process with decrease its circulation in flotation flowsheet, improve the recovery rate in ore-dressing of copper nickel.
The present invention realizes by following technical scheme:
(1) by after copper nickel sulfide mineral ore grinding, carry out routine and roughly select, scan with selected, selected and scan in process, cleaner tailings and scavenger concentrate are not back to the selected operation of upper level or scan operation, obtain copper nickel sulfide mineral high-grade concentrate, chats and mine tailing;
(2) use the hydrochloric acid of the concentrated sulfuric acid or mass percent concentration 15 ~ 25% to carry out the process of selective acidleach de-magging to chats, extraction temperature is normal temperature, and extraction time is 1 ~ 1.5h, and carry out Separation of Solid and Liquid after having leached, filtrate returns leaching, and leaching slag carries out flotation;
(3) by step (2) gained leaching slag add water size mixing to ore pulp mass percent concentration be 25 ~ 30%;
(4) flotation is carried out to step (3) gained ore pulp, flotation operation is divided into twice, first time flotation adds collecting agent 80 ~ 120g/t and foaming agent 40 ~ 60g/t sizes mixing, flotation is carried out after having sized mixing, the froth pulp of flotation is as low-grade concentrate, in groove, product carries out second time flotation, collecting agent 40 ~ 60g/t and foaming agent 20 ~ 30g/t is added equally in floatation process, froth pulp and the froth pulp of first time flotation of second time flotation merge common as low-grade concentrate, and in the groove of second time flotation, product is as tailing waste.
Described chats is scavenger concentrate and cleaner tailings.
The hydrochloric acid consumption of the described concentrated sulfuric acid or mass percent concentration 15 ~ 25% is 8 ~ 15kg/t, and the concentrated sulfuric acid is commercial products.
Described collecting agent is that ethyl xanthate is or/and butyl xanthate.
Described foaming agent is J-622.
The advantage of the present invention's existence compared with known technology:
1, the present invention is only for copper nickel sulfide mineral, after copper nickel sulfide mineral ore grinding, carry out conventional roughly selecting, concentrate and scanning, cleaner tailings and scavenger concentrate (flotation chats) are not back to upper level flotation operation, decrease difficult floating chats and containing the circulation of magnesium silicate in flotation flowsheet;
2, only carry out the process of selective acidleach de-magging to flotation chats, treating capacity is less, and cost is lower, reduces the content of MgO in concentrate simultaneously;
3, in leaching process, sour consumption is only 8 ~ 15kg/t, and extraction temperature is normal temperature, decreases the loss of copper nickel in leaching process;
4, by carrying out the process of selective acidleach de-magging to flotation chats, decreasing the use of inhibitor, improving flotation operation environment, improve the rate of recovery of main metallic nickel and copper;
5, this method technological process is reasonable, and flowage structure is simple, is easy to industrializing implementation.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention;
Fig. 2 is conventional process flow schematic diagram.
Detailed description of the invention
Below in conjunction with drawings and Examples, method of the present invention is described in further detail, but scope is not limited to described content.
Embodiment 1: ore sample is the copper nickel sulfide mineral in mining area, Jinchuan, Gansu, raw ore is containing Ni1.64%, Cu0.78%, MgO21%, and main gangue mineral is serpentine, talcum and olivine.
Copper nickel sulfide mineral accounts for 85.3% through muck ore grinding to fineness-0.074mm according to flow process shown in Fig. 1, add water size mixing to ore pulp mass percent concentration be 33%, then add inhibitor sodium metasilicate 1200g/t, collecting agent butyl xanthate 120g/t and foaming agent J-62260g/t to carry out stirring and size mixing, carry out after having sized mixing conventional roughly selecting, selected and scan, in selected groove product and the froth pulp scanned be not back to upper level roughly select, selected or scan operation, obtain high-grade nickel concentrate, chats and mine tailing;
Add concentrated sulfuric acid 10kg/t after being merged by chats and carry out selective acidleach de-magging, extraction time is 1h, after leaching completes, filtration obtains filtrate and leaching slag, filtrate returns leaching, leaching slag add water size mixing to ore pulp mass percent concentration be 28%, then collecting agent butyl xanthate 90g/t is added, foaming agent J-62240g/t sizes mixing, first time flotation is carried out after having sized mixing, flotation froth product is as low-grade concentrate, mine tailing is adding butyl xanthate 40g/t successively, second time flotation is carried out after foaming agent J-62220g/t sizes mixing, flotation froth product merges as low-grade concentrate with first time flotation froth product, in groove, product is as tailing waste, in final low-grade concentrate and high-grade concentrate, the overall recovery of Cu and Ni is respectively 79.73%, 90.02%, content of MgO 4.21%,
Adopt the technological process shown in Fig. 2, copper nickel sulfide mineral is accounted for 85.3% through muck ore grinding to fineness-0.074mm, add water size mixing to ore pulp mass percent concentration be 33%, then inhibitor sodium metasilicate 2000g/t is added successively, collecting agent butyl xanthate 120g/t and foaming agent J-62260g/t carries out stirring and sizes mixing, conventional roughly selecting is carried out after having sized mixing, selected and scan, selected and scan in process, product and scan froth pulp and be back to upper level and roughly select in cleaner cell, selected and scan operation, final acquisition copper-nickel concentrate and mine tailing two products, in concentrate, the overall recovery of Cu and Ni is respectively 77.32%, 86.42%, in concentrate, content of MgO is 6.8%.Visible, adopt this invention, in concentrate, magnesian content can be reduced to 4.21% by 6.8%, and improves copper nickel recovery 2.41 and 3.6 percentage points simultaneously, and in rougher process, the consumption of inhibitor sodium metasilicate is reduced to 1200g/t by 2000g/t.
Embodiment 2: ore sample is the copper nickel sulfide mineral in copper nickel district of Baima, Yunnan stockaded village, raw ore is on average containing Ni1.2%, Cu0.7%, MgO16.67%, and main gangue mineral is serpentine, chlorite, dolomite and quartz.
Copper nickel sulfide mineral according to flow process shown in Fig. 1, adds water and sizes mixing to ore pulp mass percent concentration to be 30%, then to add inhibitor sodium metasilicate 1600g/t successively, collecting agent ethyl xanthate 100g/t and foaming agent 2 after muck ore grinding accounts for 76.43% to fineness-0.074mm #oil 40g/t carries out stirring and sizes mixing, and carries out conventional roughly selecting, selected and scan after having sized mixing, in selected groove product and the froth pulp scanned be not back to upper level roughly select, selected or scan operation, obtain high-grade nickel concentrate, chats and mine tailing;
Add concentrated sulfuric acid 8kg/t after being merged by flotation chats and carry out selective acidleach de-magging, extraction time is 1.5h, after leaching completes, filtration obtains filtrate and leaching slag, filtrate returns leaching, leaching slag add water size mixing to ore pulp mass percent concentration be 25%, then collecting agent ethyl xanthate 80g/t is added successively, foaming agent J-62250g/t sizes mixing, first time flotation is carried out after having sized mixing, flotation froth product is as low-grade concentrate, in groove, product adds ethyl xanthate 50g/t, second time flotation is carried out after foaming agent J-62225g/t sizes mixing, flotation froth product and first time flotation froth product merge common as low-grade concentrate, in groove, product is as tailing waste, in final low-grade concentrate and high-grade concentrate, the overall recovery of Cu and Ni is respectively 81.58%, 88.4%, content of MgO 3.8%.
Adopt the technological process shown in Fig. 2, copper nickel sulfide mineral is accounted for 76.43% through muck ore grinding to fineness-0.074mm, add water and size mixing to ore pulp mass percent concentration to be 30%, then to add inhibitor sodium metasilicate 3000g/t successively, collecting agent ethyl xanthate 100g/t and foaming agent 2 #oil 40g/t carries out stirring and sizes mixing, carry out after having sized mixing conventional roughly selecting, selected and scan, in cleaner cell product and scan froth pulp be back to upper level roughly select, selected and scan operation, final acquisition copper-nickel concentrate and mine tailing two products, in concentrate, the rate of recovery of Cu and Ni is respectively 78.86%, 85.4%, and in concentrate, content of MgO is 5.4%.Visible, adopt this invention, magnesian content in concentrate can be made to be reduced to 3.8% by 5.4%, and improve copper nickel recovery 2.72 and 3.0 percentage points simultaneously, in rougher process, the consumption of inhibitor sodium metasilicate is reduced to 1600g/t by 3000g/t.
Embodiment 3: ore sample is Xinjiang low grade copper-nickel sulphide ores, raw ore is on average containing Ni0.52%, Cu0.39%, MgO9.32%, and main gangue mineral is talcum, chlorite, dolomite and the tremolite.
Low grade copper-nickel sulphide ores according to flow process shown in Fig. 1 after muck ore grinding accounts for 82.34% to fineness-0.074mm, add water size mixing to ore pulp mass percent concentration be 32.3%, then inhibitor sodium metasilicate 2000g/t is added successively, collecting agent butyl xanthate 120g/t and foaming agent J-62260g/t carries out stirring and sizes mixing, carry out after having sized mixing conventional roughly selecting, selected and scan, in selected groove product and the froth pulp scanned be not back to upper level roughly select, selected or scan operation, obtain high-grade nickel concentrate, chats and mine tailing;
Add concentrated sulfuric acid 15kg/t after being merged by flotation chats and carry out selective acidleach de-magging, extraction time is 1.2h, after leaching completes, filtration obtains filtrate and leaching slag, filtrate returns leaching, leaching slag add water size mixing to ore pulp mass percent concentration be 30%, then collecting agent 110g/t(butyl xanthate 50g/t successively, ethyl xanthate 60g/t), foaming agent J-62260g/t sizes mixing, first time flotation is carried out after having sized mixing, flotation froth product is as low-grade concentrate, in groove, product adds collecting agent 60g/t(butyl xanthate 30g/t, ethyl xanthate 30g/t), second time flotation is carried out after foaming agent J-62230g/t sizes mixing, flotation froth product and first time flotation froth product merge common as low-grade concentrate, in groove, product is as tailing waste, in final low-grade concentrate and high-grade concentrate, the overall recovery of Cu and Ni is respectively 78.32%, 82.6%, content of MgO 4.34%.
Adopt the technological process shown in Fig. 2, copper nickel sulfide mineral is accounted for 82.34% through muck ore grinding to fineness-0.074mm, add water size mixing to ore pulp mass percent concentration be 32.3%, then inhibitor sodium metasilicate 3200g/t is added, collecting agent butyl xanthate 120g/t and foaming agent J-62260g/t carries out stirring and sizes mixing, conventional roughly selecting is carried out after having sized mixing, selected and scan, product and scan froth pulp and be back to upper level and roughly select in cleaner cell, selected and scan operation, final acquisition copper-nickel concentrate and mine tailing two products, in concentrate, the rate of recovery of Cu and Ni is respectively 74.43%, 78.26%, in concentrate, content of MgO is 5.16%.Visible, adopt this invention, magnesian content in concentrate can be made to be reduced to 4.34% by 5.16%, and improve copper nickel recovery 3.89 and 4.43 percentage points simultaneously, in rougher process, the consumption of inhibitor sodium metasilicate is reduced to 2000g/t by 3200g/t.
Embodiment 4: ore sample is the copper nickel sulfide mineral in copper nickel district of Baima, Yunnan stockaded village, raw ore is on average containing Ni1.2%, Cu0.7%, MgO16.67%, and main gangue mineral is serpentine, chlorite, dolomite and quartz.
Copper nickel sulfide mineral according to flow process shown in Fig. 1, adds water and sizes mixing to ore pulp mass percent concentration to be 30%, then to add inhibitor sodium metasilicate 1600g/t successively, collecting agent ethyl xanthate 100g/t and foaming agent 2 after muck ore grinding accounts for 76.43% to fineness-0.074mm #oil 40g/t carries out stirring and sizes mixing, and carries out conventional roughly selecting, selected and scan after having sized mixing, in selected groove product and the froth pulp scanned be not back to upper level roughly select, selected or scan operation, obtain high-grade nickel concentrate, chats and mine tailing;
The hydrochloric acid 9kg/t adding mass percent concentration 20% after being merged by flotation chats carries out selective acidleach de-magging, extraction time is 1h, after leaching completes, filtration obtains filtrate and leaching slag, filtrate returns leaching, leaching slag add water size mixing to ore pulp mass percent concentration be 27%, then collecting agent ethyl xanthate 100g/t is added successively, foaming agent J-62245g/t sizes mixing, first time flotation is carried out after having sized mixing, flotation froth product is as low-grade concentrate, in groove, product adds ethyl xanthate 55g/t, second time flotation is carried out after foaming agent J-62225g/t sizes mixing, flotation froth product and first time flotation froth product merge common as low-grade concentrate, in groove, product is as tailing waste, in final low-grade concentrate and high-grade concentrate, the overall recovery of Cu and Ni is respectively 80.92%, 87.38%, content of MgO 4.21%.
Adopt the technological process shown in Fig. 2, copper nickel sulfide mineral is accounted for 76.43% through muck ore grinding to fineness-0.074mm, add water and size mixing to ore pulp mass percent concentration to be 30%, then to add inhibitor sodium metasilicate 3000g/t successively, collecting agent ethyl xanthate 100g/t and foaming agent 2 #oil 40g/t carries out stirring and sizes mixing, carry out after having sized mixing conventional roughly selecting, selected and scan, in cleaner cell product and scan froth pulp be back to upper level roughly select, selected and scan operation, final acquisition copper-nickel concentrate and mine tailing two products, in concentrate, the rate of recovery of Cu and Ni is respectively 78.86%, 85.4%, and in concentrate, content of MgO is 5.4%; Visible, adopt this invention, magnesian content in concentrate can be made to be reduced to 4.21% by 5.4%, and improve copper nickel recovery 2.06 and 1.98 percentage points simultaneously, in rougher process, the consumption of inhibitor sodium metasilicate is reduced to 1600g/t by 3000g/t.
Embodiment 5: ore sample is the copper nickel sulfide mineral in mining area, Jinchuan, Gansu, raw ore is containing Ni1.64%, Cu0.78%, MgO21%, and main gangue mineral is serpentine, talcum and olivine.
Copper nickel sulfide mineral accounts for 85.3% through muck ore grinding to fineness-0.074mm according to flow process shown in Fig. 1, add water size mixing to ore pulp mass percent concentration be 33%, then add inhibitor sodium metasilicate 1200g/t, collecting agent butyl xanthate 115g/t and foaming agent J-62255g/t to carry out stirring and size mixing, carry out after having sized mixing conventional roughly selecting, selected and scan, in selected groove product and the froth pulp scanned be not back to upper level roughly select, selected or scan operation, obtain high-grade nickel concentrate, chats and mine tailing;
The hydrochloric acid 15kg/t adding mass percent concentration 15% after being merged by chats carries out selective acidleach de-magging, extraction time is 1.5h, after leaching completes, filtration obtains filtrate and leaching slag, filtrate returns leaching, leaching slag add water size mixing to ore pulp mass percent concentration be 30%, then collecting agent butyl xanthate 90g/t is added, foaming agent J-62240g/t sizes mixing, first time flotation is carried out after having sized mixing, flotation froth product is as low-grade concentrate, mine tailing is adding butyl xanthate 40g/t successively, second time flotation is carried out after foaming agent J-62220g/t sizes mixing, flotation froth product merges as low-grade concentrate with first time flotation froth product, in groove, product is as tailing waste, in final low-grade concentrate and high-grade concentrate, the overall recovery of Cu and Ni is respectively 78.4%, 88.32%, content of MgO 4.86%,
Adopt the technological process shown in Fig. 2, copper nickel sulfide mineral is accounted for 85.3% through muck ore grinding to fineness-0.074mm, add water size mixing to ore pulp mass percent concentration be 33%, then inhibitor sodium metasilicate 2000g/t is added successively, collecting agent butyl xanthate 120g/t and foaming agent J-62260g/t carries out stirring and sizes mixing, conventional roughly selecting is carried out after having sized mixing, selected and scan, selected and scan in process, product and scan froth pulp and be back to upper level and roughly select in cleaner cell, selected and scan operation, final acquisition copper-nickel concentrate and mine tailing two products, in concentrate, the overall recovery of Cu and Ni is respectively 77.32%, 86.42%, in concentrate, content of MgO is 6.8%.Visible, adopt this invention, in concentrate, magnesian content can be reduced to 4.86% by 6.8%, and improves copper nickel recovery 1.08 and 1.9 percentage points simultaneously, and in rougher process, the consumption of inhibitor sodium metasilicate is reduced to 1200g/t by 2000g/t.

Claims (4)

1. improve a method for copper nickel sulfide mineral flotation chats copper nickel recovery, it is characterized in that concrete steps are as follows:
(1) by after copper nickel sulfide mineral ore grinding, carry out routine and roughly select, scan with selected, selected and scan in process, cleaner tailings and scavenger concentrate be not back to upper level roughly select, selected or scan operation, obtain copper nickel sulfide mineral high-grade concentrate, chats and mine tailing;
(2) use the hydrochloric acid of the concentrated sulfuric acid or mass percent concentration 15 ~ 25% to carry out the process of selective acidleach de-magging to chats, extraction temperature is normal temperature, and extraction time is 1 ~ 1.5h, and carry out Separation of Solid and Liquid after having leached, filtrate returns leaching, and leaching slag carries out flotation;
(3) by step (2) gained leaching slag add water size mixing to ore pulp mass percent concentration be 25 ~ 30%;
(4) flotation is carried out to step (3) gained ore pulp, flotation operation is divided into twice, first time flotation adds collecting agent 80 ~ 120g/t and foaming agent 40 ~ 60g/t sizes mixing, flotation is carried out after having sized mixing, the froth pulp of flotation is as low-grade concentrate, in groove, product carries out second time flotation, collecting agent 40 ~ 60g/t and foaming agent 20 ~ 30g/t is added equally in floatation process, froth pulp and the froth pulp of first time flotation of second time flotation merge common as low-grade concentrate, and in the groove of second time flotation, product is as tailing waste.
2. the method for raising copper nickel sulfide mineral flotation chats copper nickel recovery according to claim 1, is characterized in that: the hydrochloric acid consumption of the concentrated sulfuric acid or mass percent concentration 15 ~ 25% is 8 ~ 15kg/t.
3. the method for raising copper nickel sulfide mineral flotation chats copper nickel recovery according to claim 1 and 2, is characterized in that: collecting agent is that ethyl xanthate is or/and butyl xanthate.
4. the method for raising copper nickel sulfide mineral flotation chats copper nickel recovery according to claim 3, is characterized in that: foaming agent is J-622.
CN201510899106.4A 2015-12-09 2015-12-09 A kind of method for improving the copper nickel sulfide mineral flotation chats cupro-nickel rate of recovery Active CN105435954B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510899106.4A CN105435954B (en) 2015-12-09 2015-12-09 A kind of method for improving the copper nickel sulfide mineral flotation chats cupro-nickel rate of recovery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510899106.4A CN105435954B (en) 2015-12-09 2015-12-09 A kind of method for improving the copper nickel sulfide mineral flotation chats cupro-nickel rate of recovery

Publications (2)

Publication Number Publication Date
CN105435954A true CN105435954A (en) 2016-03-30
CN105435954B CN105435954B (en) 2017-12-22

Family

ID=55546845

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510899106.4A Active CN105435954B (en) 2015-12-09 2015-12-09 A kind of method for improving the copper nickel sulfide mineral flotation chats cupro-nickel rate of recovery

Country Status (1)

Country Link
CN (1) CN105435954B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106269274A (en) * 2016-06-20 2017-01-04 兰州大学 A kind of medicament for copper nickel sulfide mineral flotation in acidic condition
CN106583027A (en) * 2016-12-13 2017-04-26 昆明理工大学 Carbonate type high-silicon bauxite beneficiation method
CN106583061A (en) * 2016-11-29 2017-04-26 金川集团股份有限公司 Two-stage acidification and flotation process of nickel-copper sulfide ore
CN106694235A (en) * 2016-12-22 2017-05-24 中国恩菲工程技术有限公司 Nickel polymetallic ore separation technology
CN106824548A (en) * 2017-02-27 2017-06-13 中国地质科学院矿产综合利用研究所 Flotation dispersing agent suitable for high-talc-content copper-nickel sulfide ore and preparation method thereof
CN108927284A (en) * 2018-06-06 2018-12-04 北京矿冶科技集团有限公司 A kind of beneficiation method producing multi-product nickel ore concentrate
CN109174436A (en) * 2018-09-11 2019-01-11 中国恩菲工程技术有限公司 The smelting process of nickel sulfide ore
CN109261345A (en) * 2018-08-01 2019-01-25 昆明理工大学 A kind of copper sulphur mine separation method
CN111632744A (en) * 2020-04-28 2020-09-08 西北矿冶研究院 Beneficiation method for recovering copper sulfide from copper oxide acid leaching residues
CN112642583A (en) * 2020-12-29 2021-04-13 黑龙江省宝泉岭农垦溢祥石墨有限公司 Graphite flotation middling treatment process and device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2610927A1 (en) * 2006-11-22 2008-05-22 Norilsk Nickel Finland Oy Method of making up and treating nickel concentrates
CN101831559A (en) * 2010-05-21 2010-09-15 昆明理工大学 Flotation and metallurgy method of high-bonding-ratio carbonate gangue-type oxygen-sulfur mixed copper ore
CN102600984A (en) * 2012-03-20 2012-07-25 昆明理工大学 Processing method of copper oxide ore containing calcium magnesium gangue
CN102965500A (en) * 2012-12-10 2013-03-13 金川集团股份有限公司 Method for decreasing magnesium oxide in nickel sulfide concentrate
CN103301947A (en) * 2013-06-28 2013-09-18 中南大学 Beneficiation method for copper sulfide nickel ore with serpentines
CN103495492A (en) * 2013-10-11 2014-01-08 金川集团股份有限公司 Beneficiation method for copper nickel
CN104874484A (en) * 2015-04-28 2015-09-02 中国地质科学院郑州矿产综合利用研究所 Method for reducing content of magnesium oxide in concentrate in copper-nickel sulfide ore flotation
CN104998758A (en) * 2015-07-09 2015-10-28 广东省工业技术研究院(广州有色金属研究院) Ore dressing and magnesium reduction method of copper-nickel sulfide-platinum-group metal ores
CN105013603A (en) * 2015-07-24 2015-11-04 中南大学 Copper-nickel sulfide ore mineral separation method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2610927A1 (en) * 2006-11-22 2008-05-22 Norilsk Nickel Finland Oy Method of making up and treating nickel concentrates
CN101831559A (en) * 2010-05-21 2010-09-15 昆明理工大学 Flotation and metallurgy method of high-bonding-ratio carbonate gangue-type oxygen-sulfur mixed copper ore
CN102600984A (en) * 2012-03-20 2012-07-25 昆明理工大学 Processing method of copper oxide ore containing calcium magnesium gangue
CN102965500A (en) * 2012-12-10 2013-03-13 金川集团股份有限公司 Method for decreasing magnesium oxide in nickel sulfide concentrate
CN103301947A (en) * 2013-06-28 2013-09-18 中南大学 Beneficiation method for copper sulfide nickel ore with serpentines
CN103495492A (en) * 2013-10-11 2014-01-08 金川集团股份有限公司 Beneficiation method for copper nickel
CN104874484A (en) * 2015-04-28 2015-09-02 中国地质科学院郑州矿产综合利用研究所 Method for reducing content of magnesium oxide in concentrate in copper-nickel sulfide ore flotation
CN104998758A (en) * 2015-07-09 2015-10-28 广东省工业技术研究院(广州有色金属研究院) Ore dressing and magnesium reduction method of copper-nickel sulfide-platinum-group metal ores
CN105013603A (en) * 2015-07-24 2015-11-04 中南大学 Copper-nickel sulfide ore mineral separation method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
卢苏君等: "选择型浸出硫化镍精矿中的镁", 《有色金属(冶炼部分)》 *
孙科峰等: "铜镍硫化矿捕收剂的研究与应用", 《甘肃冶金》 *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106269274A (en) * 2016-06-20 2017-01-04 兰州大学 A kind of medicament for copper nickel sulfide mineral flotation in acidic condition
CN106583061B (en) * 2016-11-29 2018-12-07 金川集团股份有限公司 A kind of two sections of acid adding floatation process of villamaninite
CN106583061A (en) * 2016-11-29 2017-04-26 金川集团股份有限公司 Two-stage acidification and flotation process of nickel-copper sulfide ore
CN106583027B (en) * 2016-12-13 2019-06-11 昆明理工大学 A kind of beneficiation method of carbonate-type high-silica diaspore ore
CN106583027A (en) * 2016-12-13 2017-04-26 昆明理工大学 Carbonate type high-silicon bauxite beneficiation method
CN106694235A (en) * 2016-12-22 2017-05-24 中国恩菲工程技术有限公司 Nickel polymetallic ore separation technology
CN106824548A (en) * 2017-02-27 2017-06-13 中国地质科学院矿产综合利用研究所 Flotation dispersing agent suitable for high-talc-content copper-nickel sulfide ore and preparation method thereof
CN106824548B (en) * 2017-02-27 2020-07-10 中国地质科学院矿产综合利用研究所 Flotation dispersing agent suitable for high-talc-content copper-nickel sulfide ore and preparation method thereof
CN108927284A (en) * 2018-06-06 2018-12-04 北京矿冶科技集团有限公司 A kind of beneficiation method producing multi-product nickel ore concentrate
CN109261345A (en) * 2018-08-01 2019-01-25 昆明理工大学 A kind of copper sulphur mine separation method
CN109174436A (en) * 2018-09-11 2019-01-11 中国恩菲工程技术有限公司 The smelting process of nickel sulfide ore
CN109174436B (en) * 2018-09-11 2020-11-17 中国恩菲工程技术有限公司 Smelting method of nickel sulfide ore
CN111632744A (en) * 2020-04-28 2020-09-08 西北矿冶研究院 Beneficiation method for recovering copper sulfide from copper oxide acid leaching residues
CN112642583A (en) * 2020-12-29 2021-04-13 黑龙江省宝泉岭农垦溢祥石墨有限公司 Graphite flotation middling treatment process and device

Also Published As

Publication number Publication date
CN105435954B (en) 2017-12-22

Similar Documents

Publication Publication Date Title
CN105435954A (en) Method for increasing copper and nickel recycling rate from copper-nickel sulfide ore flotation middlings
CN102371212B (en) Technology of enhanced-dispersion partial selective and bulk flotation of lead and zinc sulfide ores under low and high alkalinity
CN102489407B (en) Mineral processing method for recycling scheelite/molybdenum oxide ores from molybdenum sulfide flotation tailings
CN102218376B (en) Method for high-efficiency floatation and separation of molybdenum and nickel and recovery of molybdenum and nickel from high carbon nickel-molybdenum ore to obtain molybdenum concentrate and nickel-molybdenum bulk concentrate
CN101831559B (en) Flotation and metallurgy method of high-bonding-ratio carbonate gangue-type oxygen-sulfur mixed copper ore
CN101961673B (en) Combined concentration and smelting method for mixed copper ore
CN102600984B (en) Processing method of copper oxide ore containing calcium magnesium gangue
CN105413854A (en) Beneficiation method for high-oxidation-rate copper-molybdenum paragenic ore
CN102886311B (en) Flotation method for platinum-mineral-containing violarite
CN103143447B (en) Beneficiation method of high-oxygenation-efficiency complicated copper ore containing co-associated metal
CN102029220A (en) Separating flotation method of low-grade complex lead-antimony-zinc
CN105268559A (en) Beneficiation method for low-grade copper sulphide ore
CN101269353A (en) Beneficiation method for recycling scheelite from tungsten ore rich in mispickel
CN111686925B (en) Mineral processing technology for recovering rare earth, fluorite and barite from low-grade rare earth ore
CN103551245A (en) Beneficiation method for comprehensively reclaiming complex multi-metal micro-grain cassiterite sulphide ore
CN105013603A (en) Copper-nickel sulfide ore mineral separation method
CN101632957A (en) Process for processing hematite ore containing iron carbonate
CN102580856A (en) Mineral separation method for low-content molybdenum and low-content bismuth in polymetallic ore
CN105381868A (en) Physical beneficiation phosphorus reduction method for skarn type high-phosphorus molybdenum ore
CN104492592A (en) Beneficiation method for copper sulfide scheelite mineral
CN102527497B (en) Beneficiation method for separating zinc sulfide ores from sulphur in wet-method zinc smelting slag
CN114247559A (en) Tailing-free ore dressing method for lithium ore recovery
CN115780067A (en) Efficient utilization method of micro-fine particle refractory weathered scheelite
CN105750089A (en) Magnesian collophanite separation method
CN102513214B (en) Process for separating copper from waste micro/fine-particle zinc tailing

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant