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CN1110372C - Precious metal and non-ferrous metal sulfide ore compound flotation agent - Google Patents

Precious metal and non-ferrous metal sulfide ore compound flotation agent Download PDF

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CN1110372C
CN1110372C CN 99113384 CN99113384A CN1110372C CN 1110372 C CN1110372 C CN 1110372C CN 99113384 CN99113384 CN 99113384 CN 99113384 A CN99113384 A CN 99113384A CN 1110372 C CN1110372 C CN 1110372C
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floatating
ore
gold
copper
mineral
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CN1294032A (en
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韩树山
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SHENYANG INST OF MINE AND META
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SHENYANG INST OF MINE AND META
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Abstract

The invention belongs to the field of flotation reagents for noble metal and nonferrous metal sulphide ores, and comprises the following components: 30 to 60 percent of dialkyl dithiophosphate, 8 to 14 percent of dialkyl thiocarbamate, 8 to 24 percent of mixed fatty alcohol, 4 to 8 percent of aromatic oil, 0 to 30 percent of sodium carboxymethylcellulose, and 15 to 36 percent of water.

Description

Noble metal and nonferrous metal sulfide mineral composite chemical for floatating
The invention belongs to noble metal and non-ferro metals floatation medicament, particularly a kind of noble metal and nonferrous metal sulfide mineral composite chemical for floatating.
Past is emphasized the medicament classification in order to grasp the characteristic of a certain floating agent more, and best a kind of medicament only has single performance, and promptly collecting agent can not have foaming characteristic, and foaming agent can not have collecting, so that choose to the ill in floatation process.But, the floating agent functional requirement is also constantly being improved along with the development of floatation process technology and Study on mechanism.One medicament is multi-functional to be not to be infeasible.
Before and after the sixties, the former Soviet Union promptly begins one's study and uses combination medicament, and its method is the same category medicament with different alkyl, that is to say that alkyl carbon atoms counts difference and the identical collecting agent of active group structure, combine as the alkyl xanthate that carbon number is different, make single medicine type and use.Can add snack made with traditional Chinese medicines at one according to the flotation flowsheet difference, also can add in the different snack made with traditional Chinese medicines that adds in different flotation stage, its floatation indicators all is better than single medicament.
Some patent of the seventies and ore dressing plant are released again and the application mix medicament, and it is to be mixed into a kind of medicament with the different collecting agent of active group structure.Then use xanthogen formate as certain ore dressing plant of Chile and sneak into mineral oil and select copper, reach the reduction reagent cost, improve the purpose of copper recovery as collecting agent.Certain patent is then made collectors application with sneaking into aromatic amine in the xanthogen formate, and the floatation indicators in the example all is better than the floatation indicators of single application xanthogen formate.Also early there is the method for floating that uses multiple collecting agent in floatation process simultaneously in China, as using xanthate and black powder to select non-ferrous metals such as copper, lead, zinc simultaneously, select molybdenite etc. with kerosene and xanthate, just they add respectively in use, rather than just make single medicament with the certain proportion allotment before use together.
The object of the present invention is to provide that a kind of consumption is little, cost is low, that medicament adds system is easy, has multiple flotation function, can improve the composite chemical for floatating of the noble metal and the non-ferrous metal rate of recovery in the froth flotation process effectively.
Technical solution of the present invention can realize according to following mode:
A kind of noble metal and nonferrous metal sulfide mineral composite chemical for floatating is characterized in that: contain:
Dialkyl dithiophosphate 30%-60%
Dialkyl thiocarbamic acid ester 8%-30%
Mixed fatty alcohol 8%-24%
Aromatic naphtha 4%-8%
Sodium carboxymethylcellulose 0%-14%
Water 15%-36%
All percentages are percetage by weight.
It is easy that the present invention has in use that consumption is little, cost is low, medicament adds system, to the metal recovery index good improvement can be arranged.In floatation process, have multiple function, can bubble and can collecting, and have the cooperative effect of selection, activation, inhibition, anti-sludge interference etc. simultaneously.Also might from polymetallic ore, reclaim multiple valuable metal in actual applications.
Describe the specific embodiment of the present invention below in detail:
1, composite drug of the present invention is by dialkyl dithiophosphate (I), dialkyl thiocarbamic acid ester (II), and mixed fatty alcohol (III), aromatic naphtha (IV), sodium carboxymethylcellulose compositions such as (V) is formed.
2, the chemical constitution of various components is among the present invention:
Figure C9911338400041
R=C in the formula 4H 9Alkyl Me=K, Na or NH 4
R=C in the formula 3H 7Isoalkyl R '=CH 3Or C 2H 5Alkyl III R-OH
R=C in the formula 9-13Alkyl R in the V formula 1, R 2, R 3=C 0-4 N=450-550 in the formula
3, the composition (weight %) of the various compositions of the present invention in composite drug
Dialkyl dithiophosphate 30%-60%
Dialkyl thiocarbamic acid ester 8%-30%
Mixed fatty alcohol 8%-24%
Aromatic naphtha 4%-8%
Sodium carboxymethylcellulose 0%-14%
All percentages of water 15%-36% are percetage by weight.
The present invention at first added sodium carboxymethylcellulose in the entry by said ratio in when preparation, and with the water heating more than 60 ℃, stir, make sodium carboxymethylcellulose molten entirely, add other component by said ratio then, continue to stir, dissolve mutually to each component; Be product after leaving standstill, precipitate, filtering.The composite drug that the present invention's processing obtains is mobile brownish red transparency liquid, and water soluble is easy to disperse in ore pulp.Stable chemical performance, non-stimulated smell, non-corrosiveness, non-inflammable thing, but pollution abatement are improved the ore dressing plant operating environment, store in the cool, do not have mass change for a long time.The little water that overweights of proportion, d20 is 1.015-1.045, and freezing point is low, and first condensation point is<-12 ℃.
Embodiment 1:
Noble metal and nonferrous metal sulfide mineral composite chemical for floatating, contain:
Dialkyl dithiophosphate 32%
Dialkyl thiocarbamic acid ester 18.5%
Mixed fatty alcohol 11.5%
Aromatic naphtha 8.0%
Sodium carboxymethylcellulose 0%
Water 30% all percentages are percetage by weight.
Utilize this medicament to carry out beneficiation test to being exposed to the sun certain gold mine.This gold mine ore is many metallic gold of quartz vein type copper mine stone.The major metal mineral are chalcopyrite, pyrite, magnetic iron ore, zincblende and marcasite.The valuable element that can reclaim for ore dressing is Jin Hetong, and gold is mainly rusty gold and electrum in the ore, and copper is chalcopyrite.Gold mineral mainly originates between quartzy gangue and the particle based on middle particulate.The rusty gold relative amount is 74.22%, and metallographic is to content 25.78% in the electrum.Distributive law among the Jin Zaitong is 27.74%, and the distributive law 53.97% in gangue, the distributive law in copper and gangue are 18.29%.
Amalgamate---golden copper is reclaimed in flotation in this gold mine production procedure employing, and floating product is a copper-bearing gold concentrate.
Test is that pulp density 30% carries out under the situation of pH values of pulp=8 at fixing mog-200 order 70%.Comparative test result shows that the kind that former medicament adds is many, and consumption is bigger, causes the flotation concentrate productive rate big, poor selectivity, and concentrate grade is on the low side.Adopt this composite chemical for floatating only with 80 gram/tons, the concentrate copper grade improves 5.55%, and gold grade improves 37.51 gram/tons, and copper recovery improves 6.70% simultaneously, and gold recovery improves 854%.From the flotation phenomenon, mineral floating speed is fast, and foam is not sticking, easy operating.As seen this composite chemical for floatating collecting ability is strong, and selectivity is good, is highly profitable to improving golden copper concentrate grade.Table 1 as a result:
The table 1 medicament condition mineral productive rate grade rate of recovery, (%) gram/ton, (%) copper, (%) gold, No. 152 oil of (gram/ton) copper gold butyl xanthate 70 butyl ammonium aerofloat 20 concentrate, 2.52 10.97 65.00 84.39 67.80 ethyl thiourethanes 40 composite chemical for floatating 80 concentrate 1.82 16.52 102.51 91.07 76.34
Comprehensive various technical indicator relatively can be reached a conclusion: this composite chemical for floatating selectivity is strong, and foaming characteristic is good, and consumption is few, and effect is remarkable.
Embodiment 2:
Noble metal and nonferrous metal sulfide mineral composite chemical for floatating, contain:
Dialkyl dithiophosphate 32.1%
Dialkyl thiocarbamic acid ester 8.5%
Mixed fatty alcohol 23.3%
Aromatic naphtha 4%
Sodium carboxymethylcellulose 0%
Water 32.1% all percentages are percetage by weight.
Utilize this medicament that west of Liaoning gold mine has been carried out beneficiation test.Pyrite type that this gold mine ore belongs to auriferous quartz vein---pyrite and carbonate---.Major metal mineral yellow iron ore, chalcopyrite, electrum and rusty gold.Electrum and rusty gold are mainly composed and are existed in pyrite and the chalcopyrite, and pyrite content is higher.Gold content is 3.58 gram/tons in the raw ore, and silver is 26.67 gram/tons, and sulphur is 28%, and copper is 0.52%.
Test is carried out under the prerequisite that does not change on-the-spot technological process, mog, pulp density.Adopt thick three essences two to sweep flow process, mog-200 order is between 57~62%.Compare test with the The field medicament.On-the-spot medicament is butyl xanthate consumption 60 gram/tons, 2# oil consumption 40 gram/tons.This composite chemical for floatating consumption is 50 gram/tons.Result of the test sees Table 2:
The table 2 regime of agent mineral productive rate grade rate of recovery, (%) gram/ton, (%) Cu, (%) Au, (gram/ton) Cu Au butyl xanthate 60 concentrate 6.00 7.06 46.32 78.59 75.412# oil 40 composite floating chemicals 50 concentrate 5.72 8.30 50.00 82.82 76.44
The result shows that concerning this gold mine, this composite chemical for floatating can substitute butyl xanthate fully, and this additive amount of medicament can save 1/3~1/2.Show to such an extent that flotation speed is fast in the floatation process, frothing capacity is good, the characteristics that selectivity is strong, and every index all must be improved.
Embodiment 3:
Noble metal and nonferrous metal sulfide mineral composite chemical for floatating, contain:
Dialkyl dithiophosphate 32%
Dialkyl thiocarbamic acid ester 18.5%
Mixed fatty alcohol 11.5%
Aromatic naphtha 8%
Sodium carboxymethylcellulose 0%
Water 30% all percentages are percetage by weight.
Utilize this medicament that the Henan gold mine has been carried out beneficiation test.This ore belongs to gold-containing sulfurating mineral type ore, and the major metal mineral are chalcopyrite, pyrite, rusty gold, native silver.Rusty gold and sulfide mineral symbiosis are close, main and copper mineral symbiosis also with the pyrite symbiosis, golden many embeddings cloth is in the pyrite crack and pyrite and chalcopyrite intergranular.
Gold content is 4.81 gram/tons in the raw ore, copper 0.363%, sulphur 6.45%.
In the metalliferous mineral, sulfide accounts for 15%, and wherein 13.3% is pyrite.85.12% is sulphide ore in the copper mineral, and 14.88% is cupric oxide.
Amalgamate---floatation is adopted in this gold mine production procedure, and product is Gold Concentrate under Normal Pressure and copper concentrate.Thin 200 orders 60% of ore grinding.The alkalescence ore pulp.It is identical with applied component among the embodiment 1 that this tests used composite floating chemical component, uses this floating agent and the auxilliary 2# oil that adds, and uses fourth level xanthate comparative test result such as table 3:
Table 3
The regime of agent mineral productive rate grade rate of recovery
(gram/ton) be Au (gram/ton) Au (%) butyl xanthate 80 concentrate 3.20 33.00 58.672# oil 40 composite floating chemicals 35 concentrate 2.53 42.00 59.362# oil 30 (%)
The result shows: replace fourth level xanthate with composite chemical for floatating, reduce dosing greatly, with the addition of less than 1/2, but obtain the Gold Concentrate under Normal Pressure grade and the Gold Concentrate under Normal Pressure rate of recovery, all be significantly improved.
Embodiment 4:
Noble metal and nonferrous metal sulfide mineral composite chemical for floatating, contain:
Dialkyl dithiophosphate 58.3%
Dialkyl thiocarbamic acid ester 8.8%
Mixed fatty alcohol 8.8%
Aromatic naphtha 7.4%
Sodium carboxymethylcellulose 0%
Water 16.7% all percentages are percetage by weight.
Utilize this medicament that the plumbous zinc ore in the west of Liaoning has been carried out beneficiation test.This lead zinc ore belongs to argentiferous multi-metal complex sulfide ore.The major metal mineral have pyrite, zincblende, galena, chalcopyrite.Silver mineral is freibergite, argentite, dark red silver ore and native silver etc.
Desire recovery valuable metal content is in the ore: silver 160 gram/tons, lead 1.90%, zinc 2.39%, copper 0.32%.
Use this composite chemical for floatating the valuable metal enrichment result in this ore has been made contrast test.Condition is to be added with to adjust agent CaO, Na before choosing 2S, ZnSO 4Mog-200 order 75% through one roughing and once purging selection, obtains the Ag-Cu-Zn mixed crude concentrate.Result of the test is listed in table 4.Sequence number 1,2,3,4 in the table, is to add different collecting agents and the plumbous bulk concentrate floatation indicators of the resulting silver-bearing copper of foaming agent respectively.
Table 4 sequence number is pounced on and is received the agent productive rate grade rate of recovery (%)
(gram/ton) be Ag (g/t) Cu (%) Pb (%) Ag Cu Pb1 25# black powder 40 9.70 1234.6 1.96 16.3 72.64 72.05 83.74 (%)
Foaming agent 02 aniline black powder 40 16.20 753.7 1.27 10.7 75.87 75.42 86.38
Terpenic oil 153 butyl ammonium aerofloats 40 13.20 1029.3 1.63 12.38 77.46 77.98 87.05
Foaming agent 04 composite floating chemical 40 13.80 1011.2 1.71 12.55 81.56 84.56 88.93
Foaming agent 0
The result shows that what sequence number 4 was used is that this composite chemical for floatating effect is best, and the silver-bearing copper lead minerals is had tangible enrichment advantage.Show that also this composite chemical for floatating has special effective function to silver-bearing copper lead.
Embodiment 5:
Noble metal and nonferrous metal sulfide mineral composite chemical for floatating, contain:
Dialkyl dithiophosphate 35.4%
Dialkyl thiocarbamic acid ester 12.4%
Mixed fatty alcohol 9.7%
Aromatic naphtha 4.4%
Sodium carboxymethylcellulose 2.7%
Water 35.4% all percentages are percetage by weight.
Utilize this medicament that the Jilin nickel minerals has been carried out this nickel minerals mineral deposit of beneficiation test and be the ultrabasic rock body, belong to copper nickel, essential mineral has pentlandite, magnetic iron ore, chalcopyrite, pyrite, violarite and capillose.Based on coarse grain embedding cloth, be easy to monomer dissociation mostly.Gangue has plagioclase, talcum, pyroxene etc.The ore dressing field in process of production, in order to adjust the acid-base value of ore pulp, suppress gangue and anti-sludge and disturb, optimize the optional atmosphere of valuable metal, the adjustment agent of interpolation has sodium carbonate, ammonium sulfate, lime, CMC etc., and pounce on the receipts agent with butyl xanthate and C-125, the on-the-spot use observed, because the C-125 performance is stable inadequately, mass change often arranged, shortage directly influences flotation effect to the antijamming capability of ore pulp.Therefore, adopt this composite chemical for floatating, replaced C-125.
Do not add foaming agent and carry out floating operation, small-sized flotation comparative test result is listed as table 5:
Table 5 regime of agent mineral productive rate grades (%) productive rates (%) (gram/ton) are Cu Ni Cu Ni butyl xanthate bulk concentrate 11.92 2.311 8.933 86.19 79.19C-125 140 butyl xanthate bulk concentrates 19.66 2.768 8.986 90.49 84.22 composite floating chemicals 130 (%)
The result shows: replace C-125 with this composite chemical for floatating, addition is low, and its floatation indicators is obtained positive effect.Copper, the nickel productive rate of copper, nickel grade and the bulk concentrate of the bulk concentrate that obtains with the composite chemical for floatating flotation all is better than using the flotation data of C-125.

Claims (1)

1, a kind of noble metal and nonferrous metal sulfide mineral composite chemical for floatating is characterized in that: contain:
Dialkyl dithiophosphate 30%-60%
Dialkyl thiocarbamic acid ester 8%-30%
Mixed fatty alcohol 8%-24%
Aromatic naphtha 4%-8%
Sodium carboxymethylcellulose 0%-14%
All percentages of water 15%-36% are percetage by weight.
CN 99113384 1999-10-29 1999-10-29 Precious metal and non-ferrous metal sulfide ore compound flotation agent Expired - Fee Related CN1110372C (en)

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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PE20081058A1 (en) * 2002-08-03 2008-09-04 Clariant Produkte Deutschland PROCESS FOR THE FLOTATION OF MINES OF THE SULFIDE TYPE
CN102600986A (en) * 2011-12-21 2012-07-25 西北矿冶研究院 Efficient copper-nickel polymetallic sulphide ore beneficiation reagent
CN102716809B (en) * 2012-05-30 2013-07-03 西北矿冶研究院 Copper-nickel sulfide ore collecting agent
CN102744157A (en) * 2012-07-18 2012-10-24 铁岭选矿药剂有限公司 Composite copper ore collector
CN103447155B (en) * 2013-08-23 2015-07-22 西北矿冶研究院 A kind of beneficiation method of blue chalcocite and pyrite and its collector
CN103657867B (en) * 2013-12-03 2016-02-17 安徽朝山新材料股份有限公司 A kind of flotation agent and preparation method thereof selecting gold from Copper sulfide ore containing gold
CN106492993A (en) * 2016-10-30 2017-03-15 长春黄金研究院 Suppress the composite restrainer of particulate silicate gangue
CN107138287B (en) * 2017-07-07 2020-03-24 沈阳有色金属研究院 Sulfide ore flotation combined collecting agent and application
CN117206085B (en) * 2023-11-07 2024-03-08 矿冶科技集团有限公司 High-selectivity molybdenite flotation collector, and preparation method and application thereof

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