CN102896047B - Method for beneficiating high-peat copper sulphide ore - Google Patents

Method for beneficiating high-peat copper sulphide ore Download PDF

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CN102896047B
CN102896047B CN201210376387.1A CN201210376387A CN102896047B CN 102896047 B CN102896047 B CN 102896047B CN 201210376387 A CN201210376387 A CN 201210376387A CN 102896047 B CN102896047 B CN 102896047B
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ore
peat
mineral
copper
sulfide
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CN102896047A (en
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朱一民
周菁
张晓峰
潘高产
李天霞
周玉才
焦科诚
胡婷婷
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Hunan Research Institute of Non Ferrous Metals
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Hunan Research Institute of Non Ferrous Metals
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Abstract

The invention discloses a method for beneficiating high-peat copper sulphide ore and relates to a method for beneficiating nonferrous metals, which specifically relates to a method for beneficiating high-peat copper sulphide ore; regulating agent and composite inhibitor are added before floating ore pulp and after graining raw ore; flotation environment and mineral surface state in ore pulp are improved in the method disclosed by the invention; the inhibition capacity of inhibitor on easily-floated gangue mineral and selective collection of collecting agent on mineral are enhanced; compared with the traditional method for beneficiating pre-deslimed peat, a technical procedure is simplified by the invention; the loss of available mineral caused by pre-deslimed peat is avoided; and the recycle rate of copper is increased by about more than 18%.

Description

A kind of high peat copper sulfide ore beneficiation method
Technical field
The invention belongs to non-ferrous metal ore field, relate to a kind of high peat copper sulfide ore beneficiation method.
Background technology
Sludge is on the influence research of flotation and how to eliminate sludge and between nearest 20 ~ 30 years, obtain very fast development on the impact of flotation, has occurred many new floatation process and new floating agent.If containing more sludge in flotation pulp, a series of harmful effect can be brought to flotation.Major effect have following some: be 1. easily entrained in froth pulp, concentrate grade declined; 2. easily cover cap, in coarse grain surface, affects the flotation of coarse grain; 3. adsorb a large amount of medicament, increase reagent consumption; 4. make ore pulp stickness, venting condition degenerates.The technological measure addressed this problem mainly contains: 1. adopt rarer ore pulp, reduces the stickiness of ore pulp, can reduce sludge being mingled with in froth pulp; 2. add dispersant, sludge is disperseed, eliminate slime coating in the illeffects of other mineral surfaces; 3. segmentation dosing in batches, can reduce the consumption of sludge to medicament like this; 4. to flotation again after flotation material predictive desliming.For flotation containing mud, ore that charcoal amount is large, adopt above-mentioned beneficiation method effect undesirable, flotation selects factory's cost higher, and floatation indicators is low.Therefore, for being a thorny difficult problem containing mud, ore floatation that charcoal amount is large always.
Summary of the invention
For containing mud, ore that charcoal amount is large, valuable mineral flotation difficult problem, the object of the invention is to propose a kind of high peat copper sulfide ore beneficiation method.The method adopts the good and selective height of rejection, nontoxic, pollution-free, and the composite restrainer of convenient operation and management, is applied in flotation of ore pulp the impact eliminating peat matter, realizes effective flotation recovery of valuable mineral.
For achieving the above object, technical scheme of the present invention is:
A kind of high peat copper sulfide ore beneficiation method, comprises the following steps:
A, ore grinding: by crushing raw ore, ore grinding to the fineness reclaiming degree of dissociation of mineral monomer >=80%;
B, to roughly select: under the condition of not predictive desliming charcoal, first add adjusting agent vulcanized sodium and size mixing, amount of sodium sulfide is 800 g/t ~ 2000g/t; Then composite restrainer is added as easy-floating gangue inhibitor; Described composite restrainer is made up of calgon 30g/t ~ 300g/t and aluminum sulfate 100g/t ~ 600g/t; Next adds 10g/t ~ 100g/t sulfide mineral collector; Flotation is carried out after stirring;
C, to scan: add 5g/t ~ 50g/t sulfide mineral collector, scan 2 ~ 3 times, the bottom land product scanned is mine tailing, scavenger concentrate order returns previous stage operation;
D, selected: add 50g/t ~ 200g/t vulcanized sodium and composite restrainer calgon 5g/t ~ 30g/t and aluminum sulfate 100g/t ~ 600g/t, selected 2 ~ 5 times, selected froth pulp is concentrate, selected chats sequentially returns previous stage operation.
Sulfide mineral collector described in step b and step c is preferably xanthate class 20g/t ~ 100g/t or black powder class 10g/t ~ 60g/t or thiourethane class 10 g/t ~ 100g/t.
Add 0 ~ 40g/t foaming agent again after preferably adding sulfide mineral collector in step b, foaming agent is methyl isobutyl carbinol or terpenic oil.
Described raw ore is preferably the Bu Langsi copper-sulphide ores containing Cu >=2.80%, Co >=0.16%, Ni >=0.15%, C >=4.41%.
Below the present invention be further explained and illustrate:
Described recovery degree of dissociation of mineral monomer refers to: reclaim the content of mineral monomer and the ratio of this mineral total amount in the sample to which (content of monomer and intergrowth content sum).
The present invention utilizes the reagent removal effect of vulcanized sodium, will be adsorbed in the collecting agent desorption on peat matter surface, eliminates the unavoidable ion in ore pulp, plays inducing action simultaneously, play activation to oxide mineral to sulfide mineral, improves the floatability of valuable mineral; The selective inhibitory of recycling composite restrainer calgon and aluminum sulfate, realizes valuable mineral flotation high efficiente callback, avoids the loss that predictive desliming charcoal technique causes valuable mineral.Instant invention overcomes previous methods flow process complicated, floating operation difficulty, the shortcomings such as mineral processing index is poor, economic benefit is bad, develop a kind of flow process simple, floatation indicators is high, good separation effect, the new method that reagent consumption amount is low.By using this floatation process, process raw ore is containing Cu 2.80%, containing Co 0.16%, containing Ni 0.15%, Bu Langsi copper-sulphide ores containing C 4.41%, can obtain containing Cu 16.12%, copper recovery is the copper concentrate of 94.67%, in concentrate product, the rate of recovery of Co, Ni is respectively 32.03%, 36.19%, or obtain containing Cu 22.02%, copper recovery is the copper concentrate of 83.46%, and in concentrate product, the rate of recovery of Co, Ni is respectively 31.87%, 28.67%.
" order returns last operation " of the present invention is routine operation, namely, except the final products concentrate and tailings of flotation, the intermediate products of output in floatation process, as cleaner tailings, scavenger concentrate, custom is referred to as chats, this chats is turned back to the method for upper level operation from this grade of operation.
Compared with prior art, advantage of the present invention is:
1, the inventive method improves flotation environment and ore pulp Minerals surface state, enhances inhibitor to the rejection ability of ore of easy floating gangue and collecting agent to the selective collecting of mineral.
2, the method not only simplify technological process, and avoids the loss that predictive desliming charcoal causes valuable mineral, improves the mineral processing index of valuable mineral.
Accompanying drawing explanation
Fig. 1 is the process chart of a kind of high peat copper sulfide ore beneficiation method of the present invention.
Detailed description of the invention
Following examples are intended to further illustrate the present invention, instead of limitation of the present invention.G/t described in the application refers to the quality of the medicament added in raw ore per ton.Described percentage composition is mass percentage.
Australia's somewhere copper cobalt nickel Polymetallic Minerals is for deposition carbonaceous shale type mineral deposit.Due to long-term weathering effect, make the crystal class of raw ore, ore texture is tending towards complicated, ore hardness is 1 ~ 2, with nail can portray, dirty hand.Carbonaceous thing content in raw ore is higher is 4.41%; Clay mineral content reaches 55.26%, and it is mainly the silicate mineral of the bedded structures such as water kaolinite, hydromuscovite, and interlayer closes with remaining bond, not only can adsorb a large amount of free metal ion, also adsorb many floating agents, makes System of Flotation Reagent be difficult to control; Ore very easily argillization in broken, grinding process, by crushing raw ore to sieve analysis when being less than 2mm grade ,-0.037mm grain size content accounts for 37.33%.
Valuable mineral in ore is copper, cobalt, nickel.Raw ore cupric 2.80%, copper is with chalcopyrite, secondary copper sulfide, exist in conjunction with cupric oxide, copper carbonate and free copper ion five kinds of forms, wherein exist with chalcopyrite and secondary copper sulfide form and account for 82.78%, copper mineral is mainly distributed in mud carbonaceous layer, secondly in quartz or opaline crack, no matter which kind of inlays, and the periphery of copper mineral all has peat matter to wrap up; Cobalt, the nickel grade in raw ore is respectively 0.16%, 0.16%, and cobalt, nickel mineral account for 38.13%, 29.27% respectively with oxide morphology, and therefore, this copper cobalt nickel minerals belongs to high peat complicated difficult and selects copper sulfide cobalt nickel polymetallic ore.
These mineral resources are not exploited always, mainly because the content of peat matter is comparatively large in ore, worsen flotation environment, cause floatation indicators poor.Even if adopt predictive desliming charcoal method, valuable metal still fails effectively to be reclaimed.
The experimental study that we carry out for these mineral resources, obtaining mineral processing circuit is that mog-0.074mm order accounts for 92%, do not need to carry out desliming and take off charcoal flotation, directly enter the bulk flotation of copper sulfide cobalt nickel, adjusting agent vulcanized sodium 1600g/t is added when roughly selecting, inhibitor calgon 60g/t, aluminum sulfate 600g/t, sulfide mineral collector 100g/t, foaming agent methyl isobutyl carbinol 20g/t, scan is add 50g/t sulfide mineral collector, 80g/t vulcanized sodium and calgon 20g/t and aluminum sulfate 400g/t is added time selected, scan for two to four times selected twice through one roughing, chats order returns, obtain copper cobalt nickel bulk concentrate product.
The floatation indicators that thick two essences two of scheme 1 one sweep technological process acquisition is: containing Cu16.12%, Co 0.25%, Ni 0.28% in concentrate, the rate of recovery is respectively Cu 94.67%, Co 32.03%, Ni 36.19%;
The floatation indicators that thick four essences two of scheme 2 one sweep technological process acquisition is: containing Cu 22.02%, Co 0.38%, Ni 0.35% in concentrate, the rate of recovery is respectively Cu 83.46%, Co 31.87%, Ni 28.67%.

Claims (4)

1. a high peat copper sulfide ore beneficiation method, it is characterized in that, step is:
A, ore grinding: by crushing raw ore, ore grinding to the fineness reclaiming degree of dissociation of mineral monomer >=80%;
B, to roughly select: under the condition of not predictive desliming charcoal, first add adjusting agent vulcanized sodium and size mixing, amount of sodium sulfide is 800 g/t ~ 2000g/t; Then composite restrainer is added as easy-floating gangue inhibitor; Described composite restrainer is made up of calgon 30g/t ~ 300g/t and aluminum sulfate 100g/t ~ 600g/t; Next adds 10g/t ~ 100g/t sulfide mineral collector; Flotation is carried out after stirring;
C, to scan: add 5g/t ~ 50g/t sulfide mineral collector, scan 2 ~ 3 times, the bottom land product scanned is mine tailing, scavenger concentrate order returns previous stage operation;
D, selected: add 50g/t ~ 200g/t vulcanized sodium and calgon 5g/t ~ 30g/t and aluminum sulfate 100g/t ~ 600g/t, selected 2 ~ 5 times, selected froth pulp is concentrate, selected chats sequentially returns previous stage operation.
2. a kind of high peat copper sulfide ore beneficiation method according to claim 1, it is characterized in that, sulfide mineral collector described in step b is xanthate class 20g/t ~ 100g/t or black powder class 10g/t ~ 60g/t or thiourethane class 10 g/t ~ 100g/t.
3. a kind of high peat copper sulfide ore beneficiation method according to claim 1, it is characterized in that, add 0 ~ 40g/t foaming agent after adding sulfide mineral collector in step b again, foaming agent is methyl isobutyl carbinol or terpenic oil.
4. a kind of high peat copper sulfide ore beneficiation method according to claim 1, is characterized in that, described raw ore is the Bu Langsi copper-sulphide ores containing Cu >=2.80%, Co >=0.16%, Ni >=0.15%, C >=4.41%.
CN201210376387.1A 2012-10-08 2012-10-08 Method for beneficiating high-peat copper sulphide ore Expired - Fee Related CN102896047B (en)

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CN105344491B (en) * 2015-09-30 2017-09-15 广西大学 A kind of preparation method of Sb-Au ore thing collecting agent
CN105344485B (en) * 2015-10-16 2018-03-02 中南大学 The method for reclaiming gold and its intergrowth from difficult-treating gold mine based on sulphur oil aggregative flotation
CN105363565A (en) * 2015-11-11 2016-03-02 湖南有色金属研究院 Malachite catalytic activating agent and method for flotation of malachite through malachite catalytic activating agent
CN105435966B (en) * 2015-11-18 2018-05-15 西北矿冶研究院 Beneficiation method for copper sulfide ore containing easily-argillized gangue mineral
CN105689146B (en) * 2016-03-07 2017-10-17 紫金矿业集团股份有限公司 It is a kind of by the Cu2+ pyrite activated and the low alkalinity flotation separation method of vitreous copper
CN106583060A (en) * 2016-11-21 2017-04-26 西北矿冶研究院 Beneficiation method for low-grade copper-molybdenum ore and single copper ore
CN107350083B (en) * 2017-05-23 2019-05-17 西北矿冶研究院 Beneficiation method of high-mud high-order-generation copper sulfide ore and combined regulator used for beneficiation method
CN107737667A (en) * 2017-11-21 2018-02-27 湖南有色金属研究院 The method for improving high shale content cupric oxide ore mineral processing index
CN108080152A (en) * 2017-11-27 2018-05-29 西北矿冶研究院 Beneficiation method for high-weathering high-mud oxidation sulfur-oxygen mixed copper ore
CN109517980B (en) * 2018-11-30 2020-07-10 广东省资源综合利用研究所 Method for comprehensively recovering copper and nickel in electroplating sludge
CN110170381B (en) * 2019-05-09 2021-08-27 广东省资源综合利用研究所 Beneficiation method for recovering cassiterite from tin-copper paragenic ore
CN110369147A (en) * 2019-07-31 2019-10-25 王佳盈 The method for floating that a kind of ore of easy floating gangue inhibitor, a kind of gold mineral are separated with ore of easy floating gangue
CN112337654A (en) * 2020-10-16 2021-02-09 中南大学 Application of metal ion brine in flotation separation of copper sulfide gold ore difficult to separate
CN115007326B (en) * 2022-04-06 2023-09-19 郴州市苏仙区黄泥坳矿业有限公司 Flotation method of high-calcium tungsten fluorite ore

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