CN110064511A - A kind of control oxidation-flotation recovery method of zincblende - Google Patents
A kind of control oxidation-flotation recovery method of zincblende Download PDFInfo
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- CN110064511A CN110064511A CN201910292359.3A CN201910292359A CN110064511A CN 110064511 A CN110064511 A CN 110064511A CN 201910292359 A CN201910292359 A CN 201910292359A CN 110064511 A CN110064511 A CN 110064511A
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- Prior art keywords
- zincblende
- added
- stone
- additional amount
- per ton
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- WGPCGCOKHWGKJJ-UHFFFAOYSA-N sulfanylidenezinc Chemical compound [Zn]=S WGPCGCOKHWGKJJ-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 229910052984 zinc sulfide Inorganic materials 0.000 title claims abstract description 90
- 238000005188 flotation Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000011084 recovery Methods 0.000 title claims abstract description 29
- 239000011701 zinc Substances 0.000 claims abstract description 53
- 239000004575 stone Substances 0.000 claims abstract description 49
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 48
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 43
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 35
- 239000007789 gas Substances 0.000 claims abstract description 26
- 239000012190 activator Substances 0.000 claims abstract description 24
- 239000012141 concentrate Substances 0.000 claims abstract description 23
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 23
- 239000004088 foaming agent Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000000498 ball milling Methods 0.000 claims abstract description 6
- 239000012991 xanthate Substances 0.000 claims description 31
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims description 16
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 16
- 238000010926 purge Methods 0.000 claims description 16
- TUZCOAQWCRRVIP-UHFFFAOYSA-N butoxymethanedithioic acid Chemical group CCCCOC(S)=S TUZCOAQWCRRVIP-UHFFFAOYSA-N 0.000 claims description 13
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 11
- 239000000292 calcium oxide Substances 0.000 claims description 10
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 10
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical group [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 9
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 6
- 239000000920 calcium hydroxide Substances 0.000 claims description 6
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 210000003205 muscle Anatomy 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- -1 add regulator Substances 0.000 claims 2
- 239000001257 hydrogen Substances 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000002002 slurry Substances 0.000 claims 1
- 239000003814 drug Substances 0.000 description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 description 7
- 239000011707 mineral Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 229940051841 polyoxyethylene ether Drugs 0.000 description 5
- 229920000056 polyoxyethylene ether Polymers 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910052950 sphalerite Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KJIOQYGWTQBHNH-UHFFFAOYSA-N undecanol Chemical compound CCCCCCCCCCCO KJIOQYGWTQBHNH-UHFFFAOYSA-N 0.000 description 2
- XFRVVPUIAFSTFO-UHFFFAOYSA-N 1-Tridecanol Chemical compound CCCCCCCCCCCCCO XFRVVPUIAFSTFO-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 210000000987 immune system Anatomy 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- QWENMOXLTHDKDL-UHFFFAOYSA-N pentoxymethanedithioic acid Chemical compound CCCCCOC(S)=S QWENMOXLTHDKDL-UHFFFAOYSA-N 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229940057402 undecyl alcohol Drugs 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 229910001656 zinc mineral Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/002—Inorganic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/008—Organic compounds containing oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/012—Organic compounds containing sulfur
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/016—Macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/007—Modifying reagents for adjusting pH or conductivity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/04—Frothers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; Specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A kind of control oxidation-flotation recovery method of zincblende sequentially includes the following steps: after zincblende stone is crushed by (1) and mixes with water, be placed in ball mill, regulator, activator and collecting agent is added；It is filled with nitrogen after ball mill closing air is discharged；(2) start ball mill, be passed through after mixed gas continues 2~5min, being passed through nitrogen to ball milling terminates, and releases ore pulp；(3) regulator, activator, collecting agent and foaming agent are added into ore pulp, carries out roughing flotation；Rougher concentration progress second level is selected, and rougher tailings carries out three-level and scans.Method of the invention can produce higher-quality zinc concentrate product, and zinc concentrate flotation recovery rate can be improved 10 percentage points or more, realize the efficient utilization of zinc resource.
Description
Technical field
The present invention relates to a kind of control of Mineral Processing Engineering technical field more particularly to zincblende oxidation-flotation recoveries
Method.
Background technique
Zinc is one of most common non-ferrous metal in nature, and maximum purposes is for zinc-plated industry；Zinc from it is different
The alloy that element is formed plays important in fields such as Ferrous Metallurgy, mechanical chemical industry, battery manufacture, defense military and biological medicines
Effect；Meanwhile as one of necessary microelement of human development, Zn-ef ficiency is in the important physiology such as reproduction heredity and immune system
Irreplaceable role is played in the process；Zinc resource is the high-quality mineral resources in China, and China's zinc resource reserves are 33,000,000 tons,
15% measured at world's zinc resource is accounted for, world saving second is occupied；Although and China's zinc resource reserves are abundant, Resource Guarantee journey
Degree is not high, and external dependence degree rises year by year with the national economic development；Zincblende is to be distributed most wide zinc mineral, symbiosis component
It is more, the noble metals such as most of mineral deposits and Cu, Au, Ag, Sn, Mo, Mn, Cd or yttrium association, therefore zincblende has
High economic benefit and utility value.
Ore grinding-joint flotation technology is always putative to sort the most effective means of zincblende；But in ore grinding-flotation
Cheng Zhong will form a complicated physics, chemistry and physicochemical system, it will have between mineral, milling medium and medicament
Different types of reaction occurs, and changes so as to cause the chemical property and zincblende surface nature of ore pulp, and then influences floating
Select medicament in the interaction of mineral surfaces；Studies have shown that the appropriateness oxidation on zincblende surface, can expose more scarce gold
Belong to sulfur-rich surface, be conducive to the absorption of collecting agent, and then improves Sphalerite flotation recycling；However it is currently, floating using conventional ore grinding-
Technique is selected to sort zincblende, zincblende redox reaction in grinding process is excessively strong, so that ore milling product concave-convex surface
Injustice, and there are a large amount of floccules to generate, cause zincblende hydrophily to be reinforced, and reduce floating agent in the phase interaction on surface
With, it is lower so as to cause its flotation recovery rate, cause the great wasting of resources.
Therefore, optimize zincblende milling method and medicament addition manner, and then improve Sphalerite flotation recycling with important
Meaning.
Summary of the invention
The object of the present invention is to provide a kind of control oxidation-flotation recovery methods of zincblende, by inflating closed ball
Mill adjusts mineral surfaces degree of oxidation, and by changing medicament point of addition, enhances medicament in the effect of mineral surfaces, finally
Cooperation floatation process improves the flotation recovery rate of zinc under the premise of guaranteeing zinc concentrate product quality.
Method of the invention sequentially includes the following steps:
1, zincblende stone is crushed to partial size≤3mm, then mixes and is placed in ball mill with water, add regulator, work
Agent and collecting agent；After ball mill is closed, it is filled with nitrogen and the air in ball mill is discharged；The regulator is calcium oxide
Or calcium hydroxide, activator are copper sulphate, collecting agent is xanthates；
2, start ball mill, while being passed through mixed gas into ball mill and mixed gas is kept to circulate, continue 2~5min
Afterwards, stop being passed through mixed gas, nitrogen is passed through into ball mill and keeps circulating, until ball milling terminates, released out of ball mill
Ore pulp；The part partial size≤0.074mm of zincblende powder in ore pulp accounts for the 85~95% of whole zincblende powder gross masses；It is described
Mixed gas be nitrogen and air mixed gas；
3, regulator is added into ore pulp, adds activator, collecting agent and foaming agent, finally carries out roughing flotation, obtains
Obtain rougher concentration and rougher tailings；The regulator is calcium oxide or calcium hydroxide, and activator is copper sulphate, and collecting agent is Huang
Ortho acid salt, foaming agent are ether alcohol or No. 2 oil；Rougher concentration carries out primary cleaning and recleaning, the concentrate conduct of recleaning
Zinc concentrate；The tailing of primary cleaning and recleaning returns to upper level flotation；Rougher tailings carry out once purging selection, it is secondary scan and
It scans three times, the concentrate scanned every time returns to upper level, and the tailing scanned three times is as total tailing.
In above-mentioned step 1, the mixed proportion of zincblende Shi Yushui be in mass ratio be zincblende stone: water=1:1~7:
3。
In above-mentioned step 1, xanthates selects butyl xanthate or amyl group xanthate, and additional amount is added by zincblende stone per ton
30~80g；500~1000g is added by zincblende stone per ton in the additional amount of regulator；The additional amount of activator presses zincblende per ton
100~200g is added in stone.
In above-mentioned step 1, the time for being filled with nitrogen is 1~3min.
In above-mentioned step 2, nitrogen percent by volume is 85~95% in mixed gas.
In above-mentioned step 2, mixed gas is the gas of nitrogen and air in air mixing pump after mixing.
In above-mentioned step 3,500~1000g is added by zincblende stone per ton in the additional amount of regulator in ore pulp；Activator
Additional amount by zincblende stone per ton be added 100~200g；Xanthates selects butyl xanthate or amyl group xanthate, and additional amount is by every
30~80g is added in ton zincblende stone；20~30g is added by zincblende stone per ton in the additional amount of foaming agent.
In above-mentioned step 3, stir 1~2min after regulator is added, add activator, stir 2~3min, then plus
Enter collecting agent, stir 2~3min, be eventually adding foaming agent, stirs 1~2min.
In above-mentioned step 3, in the once purging selection tailing that once purging selection obtains, collecting agent xanthates, xanthic acid is added
Salt selects butyl xanthate or amyl group xanthate, and additional amount is added 20~40g by once purging selection tailing per ton, then carries out secondary sweep
Choosing；Secondary the secondary of acquisition of scanning is scanned in tailing, and collecting agent xanthates is added, and xanthates selects butyl xanthate or amyl
Xanthate, additional amount are added 10~20g by secondary tailing of scanning per ton, are then scanned three times.
Above-mentioned zincblende stone contains Zn 0.5~10% by mass percentage.
Above-mentioned ball mill is inflatable closed ball milling machine, including horizontal ball mill and vertical stirring mill.
Nitrogen gas purity >=99.9% in the above method.
In the above method, the roughing time is 1~3min, and each selected time is 2~4min, each roughing time is 1~
3min。
In the above method, zinc concentrate contains Zn >=50% by mass percentage.
In the above method, the rate of recovery >=83% of zinc.
Method of the invention before forming ore pulp by being added the medicaments such as regulator, so that medicament more can be adequately in mine
Object surface is had an effect, and the mixed gas of nitrogen and air is passed through, and strictly to regulate and control surface oxidation of the zinc ore in grinding process
Degree, to enhance medicament in the effect on zinc ore surface；Zincblende stone is sorted using method of the invention, can be produced more high-quality
The zinc concentrate product of amount, zinc concentrate flotation recovery rate can be improved 10 percentage points or more, realize the efficient utilization of zinc resource.
Detailed description of the invention
Fig. 1 is control oxidation-flotation recovery method flow schematic diagram of the zincblende in the embodiment of the present invention.
Specific embodiment
The ball mill used in the embodiment of the present invention is JM-2L type inflatable agitating ball mill (Changsha day wound powder technology
Co., Ltd).
The zincblende used in the embodiment of the present invention is the lead-zinc ore of Yinshan Jiangxi mine or Guangdong zincblende stone.
The butyl xanthate and amyl group xanthate used in the embodiment of the present invention is commercial products.
The calcium oxide and calcium hydroxide used in the embodiment of the present invention is commercial products.
The ether alcohol used in the embodiment of the present invention and No. 2 oil is commercial products.
The ether alcohol used in the embodiment of the present invention is isomery fatty alcohol polyoxyethylene ether.
Isomery fatty alcohol polyoxyethylene ether in the embodiment of the present invention selects heterogeneous ten alcohol polyoxyethylene ether, isomery undecyl alcohol
Polyoxyethylene ether or isomerous tridecanol polyoxyethylene ether.
The copper sulphate used in the embodiment of the present invention is commercial products.
Specific discharge when being filled with nitrogen and mixed gas in the embodiment of the present invention is 300~800mL/min.
Air mixing pump in the embodiment of the present invention is XB-5L type air mixing pump (Shenyang Xin Bo Industrial Technology Co., Ltd).
PH value in the embodiment of the present invention after ore pulp addition regulator is 5~8.
Ball-milling Time at least 8.5min in the embodiment of the present invention.
Nitrogen gas purity >=99.9% used in the embodiment of the present invention.
Embodiment 1
Process is as shown in Figure 1；
Zincblende stone is crushed to partial size≤3mm, then mixes and is placed in ball mill with water, adds regulator, activation
Agent and collecting agent；It after ball mill is closed, is filled with nitrogen and the air in ball mill is discharged, the time for being filled with nitrogen is 1min；
The regulator is calcium hydroxide, and activator is copper sulphate, and collecting agent is butyl xanthate；Zincblende stone contains by mass percentage
Zn 2.2%；The mixed proportion of zincblende Shi Yushui be in mass ratio be zincblende stone: water=1:1；Collecting agent additional amount is by every
30g is added in ton zincblende stone；500g is added by zincblende stone per ton in the additional amount of regulator；The additional amount of activator presses sudden strain of a muscle per ton
100g is added in zinc ore；
Start ball mill, while being passed through mixed gas into ball mill and mixed gas is kept to circulate, after continuing 2min, stops
It is only passed through mixed gas, nitrogen is passed through into ball mill and keeps circulating, until ball milling terminates, ore pulp is released out of ball mill；
The part partial size≤0.074mm of zincblende powder in ore pulp accounts for the 95% of whole zincblende powder gross masses；The gaseous mixture
Body is the mixed gas of nitrogen and air；Nitrogen percent by volume is 85% in mixed gas；
Regulator is added into ore pulp, adds activator, collecting agent and foaming agent, finally carries out roughing flotation, obtains
Rougher concentration and rougher tailings；The regulator is calcium hydroxide, and activator is copper sulphate, and collecting agent is xanthates, is risen
Infusion is No. 2 oil；500g is added by zincblende stone per ton in the additional amount of regulator；The additional amount of activator presses zincblende stone per ton
100g is added；Xanthates selects butyl xanthate, and 30g is added by zincblende stone per ton in additional amount；The additional amount of foaming agent is by every
20g is added in ton zincblende stone；1~2min is stirred after regulator is added, adds activator, stirs 2~3min, is then added and catches
Agent is received, 2~3min is stirred, is eventually adding foaming agent, stirs 1~2min；
Rougher concentration carries out primary cleaning and recleaning, and the concentrate of recleaning is as zinc concentrate；Primary cleaning and two
Secondary selected tailing returns to upper level flotation；Rougher tailings carry out once purging selection, it is secondary scan and scan three times, scan every time
Concentrate returns to upper level, and the tailing scanned three times is as total tailing；In the once purging selection tailing that once purging selection obtains, collecting is added
Agent butyl xanthate, additional amount are added 20g by once purging selection tailing per ton, then carry out secondary scan；It is secondary to scan the two of acquisition
It is secondary to scan in tailing, collecting agent butyl xanthate is added, additional amount is added 10g by secondary tailing of scanning per ton, then carries out three times
It scans；
The roughing time is 1~3min, and each selected time is 2~4min, and each roughing time is 1~3min；
Zinc concentrate contains Zn 51.02% by mass percentage；The rate of recovery 83.09% of zinc；
Zincblende identical as existing zincblende stone flotation technology processing (concentrate contains zinc 44.78%, zinc recovery 71.56%)
It compares, zinc concentrate improves 6.24% containing zinc, and the rate of recovery improves 11.53%.
Embodiment 2
With embodiment 1, difference is method:
(1) time for being filled with nitrogen is 2min；Regulator is calcium oxide, and 800g is added by zincblende stone per ton in additional amount；
Activator is copper sulphate, and 150g is added by zincblende stone per ton in additional amount；Collecting agent is amyl group xanthate, and additional amount presses sudden strain of a muscle zinc per ton
50g is added in ore；Zincblende stone contains Zn 0.8% by mass percentage；The mixed proportion of zincblende Shi Yushui be in mass ratio
Zincblende stone: water=5:3；
(2) it is passed through mixed gas and continues 3min；The part partial size≤0.074mm of zincblende powder in ore pulp accounts for whole sudden strains of a muscle
The 90% of zinc ore powder gross mass；Nitrogen percent by volume is 90% in mixed gas；
(3) regulator is calcium oxide, and 800g is added by zincblende stone per ton in additional amount；Activator is copper sulphate, additional amount
150g is added by zincblende stone per ton；Collecting agent is amyl group xanthate, and 50g is added by zincblende stone per ton in additional amount；Foaming agent is
25g is added by zincblende stone per ton in ether alcohol, additional amount；
(4) in once purging selection tailing, 30g is added by once purging selection tailing per ton in the additional amount of collecting agent amyl group xanthate；Two
Secondary to scan in tailing, 15g is added by secondary tailing of scanning per ton in the additional amount of collecting agent amyl group xanthate；
(5) zinc concentrate contains Zn 50.46% by mass percentage；The rate of recovery 86.04% of zinc；
Zincblende identical as existing zincblende stone flotation technology processing (concentrate contains zinc 45.23%, zinc recovery 73.55%)
It compares, zinc concentrate improves 6.24% containing zinc, and the rate of recovery improves 11.53%.
Embodiment 2
With embodiment 1, difference is method:
(1) time for being filled with nitrogen is 3min；Regulator is calcium oxide, and 1000g is added by zincblende stone per ton in additional amount；
Activator is copper sulphate, and 200g is added by zincblende stone per ton in additional amount；Collecting agent is amyl group xanthate, and additional amount presses sudden strain of a muscle zinc per ton
80g is added in ore；Zincblende stone contains Zn 7.9% by mass percentage；The mixed proportion of zincblende Shi Yushui be in mass ratio
Zincblende stone: water=7:3；
(2) it is passed through mixed gas and continues 5min；The part partial size≤0.074mm of zincblende powder in ore pulp accounts for whole sudden strains of a muscle
The 85% of zinc ore powder gross mass；Nitrogen percent by volume is 95% in mixed gas；
(3) regulator is calcium oxide, and 1000g is added by zincblende stone per ton in additional amount；Activator is copper sulphate, additional amount
200g is added by zincblende stone per ton；Collecting agent is amyl group xanthate, and 80g is added by zincblende stone per ton in additional amount；Foaming agent is
30g is added by zincblende stone per ton in ether alcohol, additional amount；
(4) in once purging selection tailing, 40g is added by once purging selection tailing per ton in the additional amount of collecting agent amyl group xanthate；Two
Secondary to scan in tailing, 20g is added by secondary tailing of scanning per ton in the additional amount of collecting agent amyl group xanthate；
(5) zinc concentrate contains Zn 52.66% by mass percentage；The rate of recovery 84.39% of zinc.
The foregoing is merely illustrative of the preferred embodiments of the present invention, when that cannot be limited the scope of implementation of the present invention with this, i.e.,
Generally according to simple equivalent changes and modifications made by scope of the present invention patent and invention description content, all still belong to the present invention
In the range of patent covers.
Claims (10)
1. a kind of control oxidation-flotation recovery method of zincblende, it is characterised in that sequentially include the following steps:
(1) zincblende stone is crushed to partial size≤3mm, then mixes and is placed in ball mill with water, add regulator, activator
And collecting agent；After ball mill is closed, it is filled with nitrogen and the air in ball mill is discharged；The regulator is calcium oxide or hydrogen
Calcium oxide, activator are copper sulphate, and collecting agent is xanthates；
(2) start ball mill, while being passed through mixed gas into ball mill and mixed gas is kept to circulate, after continuing 2~5min,
Stopping is passed through mixed gas, and nitrogen is passed through into ball mill and keeps circulating, until ball milling terminates, mine is released out of ball mill
Slurry；The part partial size≤0.074mm of zincblende powder in ore pulp accounts for the 85~95% of whole zincblende powder gross masses；Described
Mixed gas is the mixed gas of nitrogen and air；
(3) regulator is added into ore pulp, adds activator, collecting agent and foaming agent, finally carries out roughing flotation, obtains thick
Concentrate selection and rougher tailings；The regulator is calcium oxide or calcium hydroxide, and activator is copper sulphate, and collecting agent is xanthic acid
Salt, foaming agent are ether alcohol or No. 2 oil；Rougher concentration carries out primary cleaning and recleaning, and the concentrate of recleaning is as zinc essence
Mine；The tailing of primary cleaning and recleaning returns to upper level flotation；Rougher tailings carries out once purging selection, secondary scans and three times
It scans, the concentrate scanned every time returns to upper level, and the tailing scanned three times is as total tailing.
2. a kind of control oxidation-flotation recovery method of zincblende according to claim 1, it is characterised in that step
(1) in, the mixed proportion of zincblende Shi Yushui be in mass ratio be zincblende stone: water=1:1~7:3.
3. a kind of control oxidation-flotation recovery method of zincblende according to claim 1, it is characterised in that step
(1) in, xanthates selects butyl xanthate or amyl group xanthate, and 30~80g is added by zincblende stone per ton in additional amount；Regulator
500~1000g is added by zincblende stone per ton in additional amount；100~200g is added by zincblende stone per ton in the additional amount of activator.
4. a kind of control oxidation-flotation recovery method of zincblende according to claim 1, it is characterised in that step
(2) in, nitrogen percent by volume is 85~95% in mixed gas.
5. a kind of control oxidation-flotation recovery method of zincblende according to claim 1, it is characterised in that step
(3) in, 500~1000g is added by zincblende stone per ton in the additional amount of regulator in ore pulp；The additional amount of activator presses sudden strain of a muscle per ton
100~200g is added in zinc ore；Xanthates selects butyl xanthate or amyl group xanthate, and additional amount is added 30 by zincblende stone per ton
~80g；20~30g is added by zincblende stone per ton in the additional amount of foaming agent.
6. a kind of control oxidation-flotation recovery method of zincblende according to claim 1, it is characterised in that step
(3) in, once purging selection obtain once purging selection tailing in, be added collecting agent xanthates, xanthates select butyl xanthate or
Amyl group xanthate, additional amount are added 20~40g by once purging selection tailing per ton, then carry out secondary scan；It is secondary to scan acquisition
It is secondary to scan in tailing, collecting agent xanthates is added, xanthates selects butyl xanthate or amyl group xanthate, and additional amount is by per ton
10~20g is added in secondary tailing of scanning, and is then scanned three times.
7. a kind of control oxidation-flotation recovery method of zincblende according to claim 1, it is characterised in that described
Zincblende stone contains Zn 0.5~10% by mass percentage.
8. a kind of control oxidation-flotation recovery method of zincblende according to claim 1, it is characterised in that step
(3) in, the roughing time is 1~3min, and each selected time is 2~4min, and each roughing time is 1~3min.
9. a kind of control oxidation-flotation recovery method of zincblende according to claim 1, it is characterised in that described
Zinc concentrate contains Zn >=50% by mass percentage.
10. a kind of control oxidation-flotation recovery method of zincblende according to claim 1, it is characterised in that zinc
The rate of recovery >=83%.
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