CN105689148B - It is a kind of to suppress calcium, the method for magnesium in ore dressing process - Google Patents
It is a kind of to suppress calcium, the method for magnesium in ore dressing process Download PDFInfo
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- CN105689148B CN105689148B CN201610253461.9A CN201610253461A CN105689148B CN 105689148 B CN105689148 B CN 105689148B CN 201610253461 A CN201610253461 A CN 201610253461A CN 105689148 B CN105689148 B CN 105689148B
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- 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
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Abstract
The invention discloses a kind of method for suppressing calcium, magnesium in ore dressing process, the method is use the floatation process of " roughing, scan, is selected " that the zinc in zinc ore is flotated in the form of zinc concentrate, it is characterised in that the combination medicament of suppression calcium, magnesium is added when selected；The present invention is that the inhibitor that combination medicament does calcium, magnesium is added during ore dressing, and output calcic, magnesium are drained than relatively low zinc concentrate, repressed calcium, magnesium with tailing, it does not produce new slag or sewage；The present invention is greatly reduced the content of calcium and magnesium in zinc concentrate so as to solve the problem of the upper calcium of zinc hydrometallurgy production, magnesium open circuit, and zinc, germanium, sulfur grade and the rate of recovery of zinc concentrate can be made to increase, the cost of transportation of zinc concentrate is also reduced while increasing the output value.
Description
Technical field
The invention belongs to hydrometallurgy and technical field of beneficiation, and in particular to a kind of to suppress calcium, magnesium in ore dressing process
Method.
Background technology
The open circuit of traditional zinc hydrometallurgy magnesium is mainly the following：1st, zinc electrolytic waste liquid neutralization of lime milk, that is, extract
A part of zinc electrolytic waste liquid filters after neutralizing pH=5.2 ~ 5.4 first with milk of lime, obtains the gypsum of about 4wt% ~ 6wt% Han zinc
Slag and filtered fluid, gypsum tailings are stored up or send rotary kiln evaporation to recycle zinc, and filtered fluid is neutralized to after pH=7.0 ~ 7.5 with milk of lime again
Filtering, the basic zinc slag of output about 15wt% ~ 20wt% Han zinc make neutralizer and are sent into the filtered fluid of sewage disposal；This method flow
Long, zinc damage is big, of high cost, and has a certain impact to environment；2nd, production white vitriol realizes the open circuit of magnesium, that is, extracts one
The solution of part wet zinc-making system, using purification, concentration, crystallization, technique productions white vitriol, but the party such as centrifuges
Method needs newly-increased investment, equipment, and energy consumption is big in process of production, moreover white vitriol sluggish market at present；3、
During zinc hydrometallurgy extraction or ion-exchange can also be used to realize the open circuit of magnesium, this method will use organic matter
Or ion-exchanger, at present seldom in production application；4th, mild acid wash is used before zinc concentrate is roasted, can be removed
The magnesium of about more than 70wt%, although this method can realize that magnesium is opened a way from zinc concentrate, producing new sewage needs to handle, thus
Also seldom it is used；5th, fluoride precipitation row magnesium processes, are exactly to add fluoride generation fluorination magnesium precipitate in Zinc electrolyte to realize
The open circuit of magnesium, but this method can bring new impurity fluorine into wet zinc-making system and influence electric zinc production, also seldom be used；
6th, crystallisation by cooling row magnesium processes, exactly concentrate a certain amount of wet zinc-making system solution of storage to be cooled down, crystallized, realize opening for magnesium
Road, this method storage solutions amount is greatly, it is necessary to which larger storage facilities, overstocks business capital, be also seldom used.These tradition
Zinc hydrometallurgy calcium, magnesium open-circuit method, be not to bring new impurity into systems to seek to produce new slag or sewage, so as to make
Into the consumption of power and the loss of valuable metal, increase new pressure to environmental protection.
There is a kind of zinc ore in Yunnan and Guizhou province, calcic, magnesium are high and calcium, magnesium are present in ore in dolomite form,
The zinc ore exploited produces zinc concentrate through flotation, as the raw material of zinc hydrometallurgy after zinc concentrate is fired.Our company just receives
Purchase such mine, zinc ore 1.5wt% containing zinc ~ 2.5wt%, the 10.0wt% containing magnesia which is exploited ~
15.0wt%, germanic 0.004wt% ~ 0.006wt%, leaded 0.1wt% ~ 0.2wt%, sulfur-bearing 1.0wt% ~ 1.5wt%, iron content 0.5wt% ~
1.0wt%, siliceous 3.0wt% ~ 5.0wt%, 15.0wt% containing calcium oxide ~ 25.0wt%；Conventional flotation separation is being carried out to the ore
When, that is, the flotation of combination medicament is added without, produce zinc concentrate 45.00wt% containing zinc ~ 50.00wt%, 3.00wt% containing magnesia
~ 4.00wt%, 5.00wt% containing calcium oxide ~ 10.00wt%, germanic 0.020wt% ~ 0.025wt%, sulfur-bearing 20.00wt% ~
25.00wt%；Its zinc recovery is 90wt% ~ 93wt%, the germanium rate of recovery is 20wt% ~ 25wt%.This zinc concentrate is through fluidized bed furnace sulfuric acid
Zinc roasted ore is produced after changing roasting, the zinc roasted ore of institute's output is as the raw material of zinc hydrometallurgy, its about 4.00wt% containing magnesia
~ 5.00wt%, 8.00wt% containing calcium oxide ~ 13.00wt%；During zinc leaching is carried out to the raw material with dilute sulfuric acid, about
Magnesia, the calcium oxide of more than 90wt% is entered in leachate in the form of sulfate；Since the sulfuric acid salt solubility of calcium is small,
Influence to zinc hydrometallurgy production is little, but its consumption sulfuric acid when leaching raises production cost；Magnesium is then different, it not only exists
Sulfuric acid is consumed during leaching rises production cost, and since the sulfuric acid salt solubility of magnesium is big, will if open circuit excludes not in time
It is enriched with zinc hydrometallurgy production system, seriously affects zinc hydrometallurgy production.
The content of the invention
It is an object of the invention to provide a kind of method for suppressing calcium, magnesium in ore dressing process, the specially ore dressing in zinc
During add combination medicament improve zinc concentrate valuable metal grade and the rate of recovery and make calcium, magnesium formed open circuit one kind side
Method.
The object of the present invention is achieved like this：A kind of to suppress calcium, the method for magnesium in ore dressing process, the method is to adopt
The zinc in zinc ore is flotated in the form of zinc concentrate with the floatation process of " roughing, scan, selected ", it is characterised in that
Added when selected and suppress calcium, the combination medicament of magnesium, the combination medicament is ten sulfate dihydrate aluminium ammoniums and/or ten sulfate dihydrate aluminium
Potassium is with waterglass by weight 1.0 ~ 1.5：It is made into the aqueous solution of 5wt% ~ 10wt% after 1 ratio mixing, then with sulfuric acid or salt
Acid adjusts the composition that its pH value of solution=2.0 ~ 2.5 obtains.
Beneficial effect：
1st, use the floatation process of " one is thick, three sweep, three essences " that the zinc in zinc ore is flotated in the form of zinc concentrate,
And it is second selected, third time is selected when add the inhibitor that combination medicament does calcium, magnesium, make magnesium, calcium in floatation process by
To suppression, obtain containing magnesia below 0.5wt%, containing calcium oxide in the zinc concentrate of below 1.5wt%, and be not added with mixing suppression
Agent is compared, and produces that calcium oxide in zinc concentrate, content of magnesia are relatively low, does not influence the production of hydrometallurgy, and zinc grade can be from
45wt% ~ 50wt% brings up to more than 60wt%, germanium grade can bring up to more than 0.045wt%, sulphur from 0.020wt% ~ 0.025wt%
Grade can bring up to more than 28wt% from 20.00wt% ~ 25.00wt%, so as to fulfill the open circuit of magnesium, calcium in floatation process,
Effectively solve its influence to zinc hydrometallurgy；
2nd, the present invention is that the inhibitor that combination medicament does calcium, magnesium is added during ore dressing, and repressed calcium, magnesium are with tail
Ore deposit is drained, it does not produce new waste water,waste gas and industrial residue；Therefore, valuable metal does not lose, it is not necessary to increases new power, also not
Produce new environmental protection pressure；The grade of valuable metal and the rate of recovery obtain different degrees of raising at the same time, meet National Environmental
Protection, the comprehensive utilization of limited resources, the requirement of circular economy and sustainable development；
3rd, for the present invention compared with being added without the ore dressing of calcium, magnesium suppression combination medicament, it not only can contain the calcium of zinc concentrate, magnesium
Amount reduces and solves the problem in zinc hydrometallurgy production, and can improve the zinc, germanium, sulfur grade of zinc concentrate, increases the output value
While also reduce the cost of transportation of zinc concentrate.
Brief description of the drawings
Fig. 1 is the process flow chart of the present invention.
Embodiment
With reference to embodiment and attached drawing, the present invention is further illustrated, but the present invention is not subject in any way
Limitation, based on present invention teach that any conversion or replacement made, belong to protection scope of the present invention.
A kind of to suppress calcium, the method for magnesium in ore dressing process, this method uses the floatation process of " roughing, scan, is selected "
Zinc in zinc ore is flotated in the form of zinc concentrate, adds the combination medicament for suppressing calcium, magnesium when selected, described group
Medicament is closed as ten sulfate dihydrate aluminium ammoniums and/or Potassium aluminum sulfate dodecahydrate and waterglass by weight 1.0 ~ 1.5：1 ratio mixing
It is made into the aqueous solution of 5wt% ~ 10wt% afterwards, then the composition that its pH value of solution=2.0 ~ 2.5 obtains is adjusted with sulfuric acid or hydrochloric acid.
The roughing is one roughing, and described scans to scan three times, including scan, scan for the second time for the first time,
Third time is scanned, it is described it is selected be triple cleaning, including it is selected for the first time, second it is selected, selected for the third time, it is described
Suppression calcium is added when selected, the combination medicament of magnesium is added when second selected and selected for the third time.
Addition of the combination medicament when second selected is 100 ~ 150g/t, the addition when third time is selected
Measure as 50 ~ 100g/t.
The combination medicament for ten sulfate dihydrate aluminium ammoniums and/or Potassium aluminum sulfate dodecahydrate and waterglass by weight 1.1 ~
1.4：The aqueous solution of 6wt% ~ 9wt% is made into after 1 ratio mixing, then adjusts its pH value of solution=2.1 ~ 2.4 with sulfuric acid or hydrochloric acid and obtains
The composition arrived.
The combination medicament for ten sulfate dihydrate aluminium ammoniums and/or Potassium aluminum sulfate dodecahydrate and waterglass by weight 1.2 ~
1.3：Be made into the aqueous solution of 7wt% ~ 8wt% after 1 ratio mixing, then with the concentrated sulfuric acid or concentrated hydrochloric acid adjust its pH value of solution=2.2 ~
2.3 obtained compositions；The concentrated sulfuric acid be mass fraction >=70% sulfuric acid solution, the concentrated hydrochloric acid for mass fraction >=
37% hydrochloric acid solution.
The floatation process is：
1）One roughing：Raw material is milled to the miberal powder that 100wt% crosses 160 mesh sieve nets with dry ball；With pulp liquid to ore deposit
Powder carries out pulp, and it be 40wt% ~ 50wt% to make pulp density, adds 300 ~ 400g/t regulators, makes pH values of pulp=6 ~ 7, stir 2 ~
3min, add 100 ~ 150g/t activators, stir 2 ~ 3min, add 150 ~ 200g/t collecting agents, stir 2 ~ 3min, then add 50 ~
60g/t foaming agents, stir 1 ~ 2min, open charging valve, scrape 5 ~ 8min of bubble, obtain No. 1 concentrate and No. 1 tailing；
2）Scan for the first time：100 ~ 150g/t regulators are added to No. 1 tailing, make pH values of pulp=6 ~ 7,2 ~ 3min is stirred, adds
Enter 40 ~ 50g/t activators, stir 2 ~ 3min, add 30 ~ 40g/t collecting agents, stir 2 ~ 3min, then add 10 ~ 20g/t of foaming agent,
1 ~ 2min is stirred, charging valve is opened, scrapes 5 ~ 8min of bubble, obtain first time scavenger concentrate and No. 2 tailings；
3）Scan for the second time：60 ~ 100g/t regulators are added to No. 2 tailings, make pH values of pulp=6 ~ 7,2 ~ 3min is stirred, adds
Enter 30 ~ 40g/t activators, stir 2 ~ 3min, add 20 ~ 30g/t collecting agents, stir 2 ~ 3min, then add 5 ~ 10g/t of foaming agent,
1 ~ 2min is stirred, charging valve is opened, scrapes 5 ~ 8min of bubble, obtain second of scavenger concentrate and No. 3 tailings；
4）Third time is scanned：40 ~ 50g/t regulators are added to No. 3 tailings, make pH values of pulp=6 ~ 7, stir 2 ~ 3min, are added
10 ~ 20g/t activators, stir 2 ~ 3min, add 10 ~ 20g/t collecting agents, stir 2 ~ 3min, then add 5 ~ 10g/t of foaming agent, stir
1 ~ 2min is mixed, charging valve is opened, scrapes 5 ~ 8min of bubble, obtain third time scavenger concentrate and No. 4 tailings；No. 4 tailing filtrations obtain 2
Number filtrate and tailing, No. 2 filtrates, which are returned, does pulp liquid, and tailing is sent into Tailings Dam；
5）It is selected for the first time：To No. 1 concentrate and first time scavenger concentrate, second of scavenger concentrate and third time scavenger concentrate
It is 40 ~ 50wt% to be adjusted to pulp density with adjusting slurry, adds 30 ~ 40g/t regulators, makes pH values of pulp=6 ~ 7, stirs 2 ~ 3min, adds
Enter 10 ~ 20g/t activators, stir 2 ~ 3min, add 10 ~ 20g/t collecting agents, stir 2 ~ 3min, then add 5 ~ 10g/t of foaming agent,
1 ~ 2min is stirred, charging valve is opened, scrapes 5 ~ 8min of bubble, obtains No. 2 concentrate and chats, middling recurrence is selected for the first time；
6）Second selected：It is 40 ~ 50wt% that No. 2 concentrate are added with water adjustment pulp density, adds 30 ~ 40g/t adjustment
Agent, makes pH values of pulp=6 ~ 7, stirs 2 ~ 3min, 10 ~ 20g/t activators are added, stir 2 ~ 3min, combination medicament is added and does calcium, magnesium
Inhibitor, stirs 2 ~ 3min, adds 10 ~ 20g/t collecting agents, stirs 2 ~ 3min, then adds 5 ~ 10g/t of foaming agent, stirs 1 ~ 2min,
Charging valve is opened, scrapes 5 ~ 8min of bubble, obtains chats and No. 3 concentrate, middling recurrence is selected for the first time；
7）It is selected for the third time：It is 40 ~ 50wt% that No. 3 concentrate are added with water adjustment pulp density, adds 30 ~ 40g/t adjustment
Agent, makes pH values of pulp=6 ~ 7, stirs 2 ~ 3min, adds 10 ~ 20g/t activators, stirs 2 ~ 3min, add combination medicament and do calcium, magnesium
Inhibitor, stirs 2 ~ 3min, adds 10 ~ 20g/t collecting agents, stirs 2 ~ 3min, then adds No. 25 ~ 10g/t of oil of foaming agent, and stirring 1 ~
2min, opens charging valve, scrapes 5 ~ 8min of bubble, obtain chats and No. 4 concentrate；Middling recurrence for the first time it is selected, to No. 4 concentrate into
Zinc concentrate and No. 1 filtrate is obtained by filtration in row, and No. 1 filtrate returns selected for the first time.
The regulator is the aqueous sodium carbonate of 5 ~ 10wt%.
The activator is the copper sulfate solution of 5 ~ 10wt%.
The collecting agent is the butyl xanthate aqueous solution of 5 ~ 10wt%.
The foaming agent is No. 2 oil.
Embodiment one
Our company is taken to purchase its 1.52wt% containing zinc of mine, 10.13wt% containing magnesia, germanic 0.0041wt%, leaded
0.11wt%, sulfur-bearing 1.25wt%, iron content 0.52wt%, the zinc ore 20000.00 of siliceous 3.15wt%, the 15.48wt% containing calcium oxide
Gram drying is stand-by；
1 ore grinding：Stand-by zinc ore is dried the miberal powder that 100wt% crosses 160 mesh sieve nets is milled to dry ball；
2 size mixing：The miberal powder of 15000.0 grams of milleds is taken, the ore pulp for being 40wt% with water slurry chemical conversion concentration, carries out once it
Roughing；
The roughing of 3 first times：Add 300g/t sodium carbonate and be formulated as the aqueous solution of 5wt% and adjust agent, make pH values of pulp=6, stir
2min is mixed, adds the aqueous solution that activator copper sulphate 100g/t is formulated as 5wt%, 2min is stirred, adds collecting agent butyl xanthate
150g/t is formulated as the aqueous solution of 5wt%, stirs 2min, then adds No. 2 oil 50g/t of foaming agent, stirs 1min, opens charging valve,
Bubble 5min is scraped, obtains No. 1 concentrate and No. 1 tailing；
4 first times scanned：100g/t sodium carbonate is added to No. 1 tailing it is formulated as the aqueous solution of 5wt% and adjust agent, makes ore deposit
PH=6 are starched, stir 2min, add the aqueous solution that activator copper sulphate 40g/t is formulated as 5wt%, 2min is stirred, adds collecting agent fourth
Xanthate 30g/t is formulated as the aqueous solution of 5wt%, stirs 2min, then adds No. 2 oil 10g/t of foaming agent, stirs 1min, opens charge valve
Door, scrapes bubble 5min, obtains first time scavenger concentrate and No. 2 tailings；
5 scan for second：No. 2 tailings are added with 60g/t sodium carbonate it is formulated as the aqueous solution of 5wt% and adjust agent, makes ore deposit
PH=6 are starched, stir 2min, add the aqueous solution that activator copper sulphate 30g/t is formulated as 5wt%, 2min is stirred, adds collecting agent fourth
Xanthate 20g/t is formulated as the aqueous solution of 5wt%, stirs 2min, then adds No. 2 oil 5g/t of foaming agent, stirs 1min, opens charge valve
Door, scrapes bubble 5min, obtains second of scavenger concentrate and No. 3 tailings；
6 third times are scanned：No. 3 tailings are added with 40g/t sodium carbonate it is formulated as the aqueous solution of 5wt% and adjust agent, makes ore deposit
PH=6 are starched, stir 2min, add the aqueous solution that activator copper sulphate 10g/t is formulated as 5wt%, 2min is stirred, adds collecting agent fourth
Xanthate 10g/t is formulated as the aqueous solution of 5wt%, stirs 2min, then adds No. 2 oil 5g/t of foaming agent, stirs 1min, opens charge valve
Door, scrapes bubble 5min, obtains third time scavenger concentrate and No. 4 tailings；No. 4 tailing filtrations, which obtain returning, does No. 2 filtrates that miberal powder is sized mixing
With water content 30.15wt%, 0.069wt% containing zinc, magnesia 10.36wt%, calcium oxide 15.82wt%, germanium 0.003wt%, sulphur
20962 grams of feeding Tailings Dams of wet tailing of 0.58wt%；
7 is selected for the first time：To No. 1 concentrate and first time scavenger concentrate, second of scavenger concentrate and third time scavenger concentrate
It is 40wt% to be adjusted to pulp density with water, adds 30g/t sodium carbonate and is formulated as the aqueous solution of 5wt% and adjusts agent, makes pH values of pulp=6,
2min is stirred, adds the aqueous solution that activator copper sulphate 10g/t is formulated as 5wt%, 2min is stirred, adds collecting agent butyl xanthate
10g/t is formulated as the aqueous solution of 5wt%, stirs 2min, then adds No. 2 oil 5g/t of foaming agent, stirs 1min, opens charging valve, scrape
5min is steeped, obtains No. 2 concentrate and chats, middling recurrence is selected for the first time；
8 second it is selected：It is 40wt% that No. 2 concentrate are added with water adjustment pulp density, adds 30g/t sodium carbonate and is formulated as
The aqueous solution of 5wt% adjusts agent, makes pH values of pulp=6, stirs 2min, adds the water that activator copper sulphate 10g/t is formulated as 5wt%
Solution, stirs 2min, adds 100g/t combination medicaments, preparation method is for ten sulfate dihydrate aluminium ammoniums with waterglass according to 1:1 ratio
Example, which mixes the aqueous solution for being configured to 5wt% afterwards and adjusts its pH=2.0 with sulfuric acid, does calcium, magnesium inhibitor, stirs 2min, addition is caught
The aqueous solution that agent butyl xanthate 10g/t is formulated as 5wt% is received, stirs 2min, then adds No. 2 oil 5g/t of foaming agent, 1min is stirred, opens
Charging valve, scrapes bubble 5min, obtains chats and No. 3 concentrate, and middling recurrence is selected for the first time；
9 third times are selected：It is 40wt% that No. 3 concentrate are added with water adjustment pulp density, adds 30g/t sodium carbonate and is formulated as
The aqueous solution of 5wt% adjusts agent, makes pH values of pulp=6, stirs 2min, adds the water that activator copper sulphate 10g/t is formulated as 5wt%
Solution, stirs 2min, adds 50g/t combination medicaments, preparation method is for ten sulfate dihydrate aluminium ammoniums with waterglass according to 1:1 ratio
Mix the aqueous solution for being configured to 5wt% afterwards and adjust its pH=2.0 with sulfuric acid and do calcium, magnesium inhibitor, stir 2min, add collecting
Agent butyl xanthate 10g/t is formulated as the aqueous solution of 5wt%, stirs 2min, then adds No. 2 oil 5g/t of foaming agent, stirs 1min, unlatching is filled
Air valve, scrapes bubble 5min, obtains chats and No. 4 concentrate；Middling recurrence is selected for the first time, and No. 4 concentrate be obtained by filtration containing
Moisture content 27.46wt%, 60.85wt% containing zinc, magnesia 0.48wt%, calcium oxide 1.45wt%, germanium 0.045wt%, sulphur 28.65wt%
Wet 494 grams and No. 1 filtrate of zinc concentrate, No. 1 filtrate return selected for the first time.
It is by can be calculated each economic target：
1. the suppression ore dressing process of whole calcium, magnesium produces zinc concentrate water content 27.46wt%, 60.85wt% containing zinc, magnesia
0.48wt%, calcium oxide 1.45wt%, germanium 0.045wt%, sulphur 28.65wt%；Zinc concentrate yield is 2.39wt%.Produced tailing is aqueous
Part 30.15wt%, 0.069wt% containing zinc, magnesia 10.36wt%, calcium oxide 15.82wt%, germanium 0.003wt%, sulphur 0.58wt%；Tail
Mineral products rate is 97.61wt%；
2nd, from zinc ore to the process of product zinc concentrate, the rate of recovery of its zinc is 95.54wt%, the rate of recovery of germanium
26.19wt%, calcium oxide inhibiting rate 99.78wt%, magnesia inhibiting rate 99.89wt%；
3rd, from above index can be seen that calcium, magnesium suppresses the ore dressing process of combination medicament, its calcium, magnesium are almost suppressed to
In tailing, and the grade of the valuable metal such as the zinc of produced zinc concentrate, germanium, sulphur and the rate of recovery are improved；Meanwhile do not produce
New waste water,waste gas and industrial residue.
Embodiment two
Our company is taken to purchase its 2.49wt% containing zinc of mine, 14.96wt% containing magnesia, germanic 0.0058wt%, leaded
0.19wt%, sulfur-bearing 1.47wt%, iron content 0.96wt%, the zinc ore 25000.00 of siliceous 4.96wt%, the 24.96wt% containing calcium oxide
Gram drying is stand-by.
1 ore grinding：Stand-by zinc ore is dried the miberal powder that 100wt% crosses 160 mesh sieve nets is milled to dry ball.
2 size mixing：The miberal powder of 20000.0 grams of milleds is taken, the ore pulp for being 50wt% with water slurry chemical conversion concentration, carries out once it
Roughing.
3 one roughings：Add 400g/t sodium carbonate and be formulated as the aqueous solution of 10wt% and adjust agent, make pH values of pulp=7, stir
3min is mixed, adds the aqueous solution that activator copper sulphate 150g/t is formulated as 10wt%, 3min is stirred, adds collecting agent butyl xanthate
200g/t is formulated as the aqueous solution of 10wt%, stirs 3min, then adds No. 2 oil 60g/t of foaming agent, stirs 2min, opens charge valve
Door, scrapes bubble 8min, obtains No. 1 concentrate and No. 1 tailing.
4 first times scanned：150g/t sodium carbonate is added to No. 1 tailing it is formulated as the aqueous solution of 10wt% and adjust agent, makes
PH values of pulp=7, stir 3min, add the aqueous solution that activator copper sulphate 50g/t is formulated as 10wt%, stir 3min, add collecting
Agent butyl xanthate 40g/t is formulated as the aqueous solution of 10wt%, stirs 3min, then adds No. 2 oil 20g/t of foaming agent, stirs 2min, opens
Charging valve, scrapes bubble 8min, obtains first time scavenger concentrate and No. 2 tailings.
5 scan for second：No. 2 tailings are added with 100g/t sodium carbonate it is formulated as the aqueous solution of 10wt% and adjust agent, makes
PH values of pulp=7, stir 3min, add the aqueous solution that activator copper sulphate 40g/t is formulated as 10wt%, stir 3min, add collecting
Agent butyl xanthate 30g/t is formulated as the aqueous solution of 10wt%, stirs 3min, then adds No. 2 oil 10g/t of foaming agent, stirs 2min, opens
Charging valve, scrapes bubble 8min, obtains second of scavenger concentrate and No. 3 tailings.
6 third times are scanned：No. 3 tailings are added with 50g/t sodium carbonate it is formulated as the aqueous solution of 10wt% and adjust agent, makes ore deposit
PH=7 are starched, stir 3min, add the aqueous solution that activator copper sulphate 20g/t is formulated as 10wt%, 3min is stirred, adds collecting agent
Butyl xanthate 20g/t is formulated as the aqueous solution of 10wt%, stirs 3min, then adds No. 2 oil 10g/t of foaming agent, stirs 2min, unlatching is filled
Air valve, scrapes bubble 8min, obtains third time scavenger concentrate and No. 4 tailings.No. 4 tailing filtrations, which obtain returning, does No. 2 that miberal powder is sized mixing
Filtrate and water content 30.54wt%, 0.10wt% containing zinc, magnesia 15.54wt%, calcium oxide 25.91wt%, germanium 0.004wt%, sulphur
27676 grams of feeding Tailings Dams of wet tailing of 0.32wt%.
7 is selected for the first time：To No. 1 concentrate and first time scavenger concentrate, second of scavenger concentrate and third time scavenger concentrate
It is 50wt% to be adjusted with water to pulp density, adds 40g/t sodium carbonate and is formulated as the aqueous solution of 10wt% and adjusts agent, makes pH values of pulp
=7,3min is stirred, adds the aqueous solution that activator copper sulphate 20g/t is formulated as 10wt%, 3min is stirred, it is yellow to add collecting agent fourth
Medicine 20g/t is formulated as the aqueous solution of 10wt%, stirs 3min, then adds No. 2 oil 10g/t of foaming agent, stirs 2min, opens charge valve
Door, scrapes bubble 8min, obtains No. 2 concentrate and chats, and middling recurrence is selected for the first time.
8 second it is selected：It is 50wt% that No. 2 concentrate are added with water adjustment pulp density, adds 40g/t sodium carbonate and is formulated as
The aqueous solution of 10wt% adjusts agent, makes pH values of pulp=7, stirs 3min, adds activator copper sulphate 20g/t and is formulated as 10wt%'s
Aqueous solution, stirs 3min, adds 150g/t combination medicaments, and collocation method presses 1.5 for Potassium aluminum sulfate dodecahydrate and waterglass：1
Ratio, which mixes the aqueous solution for being configured to 10wt% afterwards and adjusts its pH=2.5 with the concentrated sulfuric acid, does calcium, magnesium inhibitor, stirs 3min,
The aqueous solution that collecting agent butyl xanthate 20g/t is formulated as 10wt% is added, stirs 3min, then adds No. 2 oil 10g/t of foaming agent, stirring
2min, opens charging valve, scrapes bubble 8min, obtains chats and No. 3 concentrate, and middling recurrence is selected for the first time.
9 third times are selected：It is 50wt% that No. 3 concentrate are added with water adjustment pulp density, adds 40g/t sodium carbonate and is formulated as
The aqueous solution of 10wt% adjusts agent, makes pH values of pulp=7, stirs 3min, adds activator copper sulphate 20g/t and is formulated as 10wt%'s
Aqueous solution, stirs 3min, adds 100g/t combination medicaments, and collocation method presses 1.5 for Potassium aluminum sulfate dodecahydrate and waterglass：1
Ratio, which mixes the aqueous solution for being configured to 10wt% afterwards and adjusts its pH=2.5 with the concentrated sulfuric acid, does calcium, magnesium inhibitor, stirs 3min,
The aqueous solution that collecting agent butyl xanthate 20g/t is formulated as 10wt% is added, stirs 3min, then adds No. 2 oil 10g/t of foaming agent, stirring
2min, opens charging valve, scrapes bubble 8min, obtains chats and No. 4 concentrate；Middling recurrence is selected for the first time, and No. 4 concentrate are carried out
Water content 27.85wt%, 61.71wt% containing zinc, magnesia 0.49wt%, calcium oxide 1.42wt%, germanium 0.051wt%, sulphur is obtained by filtration
1076 grams and No. 1 filtrate of the wet zinc concentrate of 29.85wt%, No. 1 filtrate return selected for the first time.
It is by can be calculated each economic target：
1st, whole calcium, the suppression ore dressing process of magnesium produce zinc concentrate water content 27.85wt%, 61.71wt% containing zinc, magnesia
0.49wt%, calcium oxide 1.42wt%, germanium 0.051wt%, sulphur 29.85wt%；Zinc concentrate yield is 3.88wt%.Produced tailing moisture content
30.54wt%, 0.10wt% containing zinc, magnesia 15.54wt%, calcium oxide 25.91wt%, germanium 0.004wt%, sulphur 0.32wt%；Tailing
Yield is 96.12wt%；
2nd, from zinc ore to the process of product zinc concentrate, the rate of recovery of its zinc is 96.16wt%, the rate of recovery of germanium
34.12wt%, calcium oxide inhibiting rate 99.78wt%, magnesia inhibiting rate 99.48wt%；
3rd, from above index can be seen that calcium, magnesium suppresses the ore dressing process of combination medicament, its calcium, magnesium are almost suppressed to
In tailing, and the grade of the valuable metal such as the zinc of produced zinc concentrate, germanium, sulphur and the rate of recovery are improved；Meanwhile do not produce
New waste water,waste gas and industrial residue.
Embodiment three
Our company is taken to purchase its 2.09wt% containing zinc of mine, 14.16wt% containing magnesia, germanic 0.0048wt%, leaded
0.12wt%, sulfur-bearing 1.37wt%, iron content 0.86wt%, the zinc ore 25000.00 of siliceous 4.86wt%, the 23.36wt% containing calcium oxide
Gram drying is stand-by.
1 ore grinding：Stand-by zinc ore is dried the miberal powder that 100wt% crosses 160 mesh sieve nets is milled to dry ball.
2 size mixing：The miberal powder of 20000.0 grams of milleds is taken, the ore pulp for being 45wt% with water slurry chemical conversion concentration, carries out once it
Roughing.
3 one roughings：Add 350g/t sodium carbonate and be formulated as the aqueous solution of 8wt% and adjust agent, make pH values of pulp=7, stir
2.5min, adds the aqueous solution that activator copper sulphate 125g/t is formulated as 8wt%, stirs 2.5min, adds collecting agent butyl xanthate
175g/t is formulated as the aqueous solution of 8wt%, stirs 2.5min, then adds No. 2 oil 55g/t of foaming agent, stirs 1.5min, opens inflation
Valve, scrapes bubble 6min, obtains No. 1 concentrate and No. 1 tailing.
4 first times scanned：125g/t sodium carbonate is added to No. 1 tailing it is formulated as the aqueous solution of 8wt% and adjust agent, makes ore deposit
PH=7 are starched, stir 2.5min, add the aqueous solution that activator copper sulphate 45g/t is formulated as 10wt%, stir 2.5min, addition is caught
The aqueous solution that agent butyl xanthate 35g/t is formulated as 8wt% is received, stirs 2.5min, then adds No. 2 oil 15g/t of foaming agent, stirs 1.5min,
Charging valve is opened, bubble 6min is scraped, obtains first time scavenger concentrate and No. 2 tailings.
5 scan for second：No. 2 tailings are added with 80g/t sodium carbonate it is formulated as the aqueous solution of 8wt% and adjust agent, makes ore deposit
PH=7 are starched, stir 2.5min, add the aqueous solution that activator copper sulphate 35g/t is formulated as 8wt%, 2.5min is stirred, adds collecting
Agent butyl xanthate 25g/t is formulated as the aqueous solution of 8wt%, stirs 2.5min, then adds No. 2 oil 8g/t of foaming agent, stirs 1.5min, opens
Charging valve is opened, bubble 6min is scraped, obtains second of scavenger concentrate and No. 3 tailings.
6 third times are scanned：No. 3 tailings are added with 45g/t sodium carbonate it is formulated as the aqueous solution of 8wt% and adjust agent, makes ore deposit
PH=7 are starched, stir 2.5min, add the aqueous solution that activator copper sulphate 15g/t is formulated as 8wt%, 2.5min is stirred, adds collecting
Agent butyl xanthate 15g/t is formulated as the aqueous solution of 8wt%, stirs 2.5min, then adds No. 2 oil 8g/t of foaming agent, stirs 1.5min, opens
Charging valve is opened, bubble 6min is scraped, obtains third time scavenger concentrate and No. 4 tailings.No. 4 tailing filtrations, which obtain returning, does what miberal powder was sized mixing
No. 2 filtrates and water content 30.28wt%, 0.08wt% containing zinc, magnesia 14.62wt%, calcium oxide 24.11wt%, germanium
27749 grams of feeding Tailings Dams of wet tailing of 0.0033wt%, sulphur 0.42wt%.
7 is selected for the first time：To No. 1 concentrate and first time scavenger concentrate, second of scavenger concentrate and third time scavenger concentrate
It is 45wt% to be adjusted with water to pulp density, adds 35g/t sodium carbonate and is formulated as the aqueous solution of 8wt% and adjusts agent, make pH values of pulp=
7,2.5min is stirred, adds the aqueous solution that activator copper sulphate 15g/t is formulated as 8wt%, 2.5min is stirred, adds collecting agent fourth
Xanthate 15g/t is formulated as the aqueous solution of 8wt%, stirs 2.5min, then adds No. 2 oil 8g/t of foaming agent, stirs 1.5min, unlatching is filled
Air valve, scrapes bubble 6min, obtains No. 2 concentrate and chats, and middling recurrence is selected for the first time.
8 second it is selected：It is 45wt% that No. 2 concentrate are added with water adjustment pulp density, adds 35g/t sodium carbonate and is formulated as
The aqueous solution of 8wt% adjusts agent, makes pH values of pulp=7, stirs 2.5min, adds activator copper sulphate 15g/t and is formulated as 8wt%'s
Aqueous solution, stirs 2.5min, adds 125g/t combination medicaments, collocation method is ten sulfate dihydrate aluminium ammoniums and Potassium aluminum sulfate dodecahydrate
1.2 are pressed with waterglass：1 ratio, which mixes the aqueous solution for being configured to 6wt% afterwards and adjusts its pH=2.2 with hydrochloric acid, does calcium, magnesium suppression
Preparation, stirs 2.5min, adds the aqueous solution that collecting agent butyl xanthate 15g/t is formulated as 8wt%, stirs 2.5min, then add foaming agent
No. 2 oil 8g/t, stir 1.5min, open charging valve, scrape bubble 6min, obtain chats and No. 3 concentrate, and middling recurrence is smart for the first time
Choosing.
9 third times are selected：It is 45wt% that No. 3 concentrate are added with water adjustment pulp density, adds 35g/t sodium carbonate and is formulated as
The aqueous solution of 8wt% adjusts agent, makes pH values of pulp=7, stirs 2.5min, adds activator copper sulphate 15g/t and is formulated as 10wt%'s
Aqueous solution, stirs 2.5min, adds 75g/t combination medicaments, collocation method is ten sulfate dihydrate aluminium ammoniums and Potassium aluminum sulfate dodecahydrate
1.2 are pressed with waterglass：1 ratio, which mixes the aqueous solution for being configured to 6wt% afterwards and adjusts its pH=2.2 with hydrochloric acid, does calcium, magnesium suppression
Preparation, stirs 2.5min, adds the aqueous solution that collecting agent butyl xanthate 15g/t is formulated as 8wt%, stirs 2.5min, then add foaming agent
No. 2 oil 8g/t, stir 1.5min, open charging valve, scrape bubble 6min, obtain chats and No. 4 concentrate；Middling recurrence is smart for the first time
Choosing, carries out No. 4 concentrate water content 27.28wt%, 61.64wt% containing zinc, magnesia 0.44wt%, calcium oxide is obtained by filtration
1.33wt%, germanium 0.049wt%, 898 grams and No. 1 filtrate of wet zinc concentrate of sulphur 29.65wt%, No. 1 filtrate return selected for the first time.
It is by can be calculated each economic target：
1st, whole calcium, the suppression ore dressing process of magnesium produce zinc concentrate water content 27.28wt%, 61.64wt% containing zinc, magnesia
0.44wt%, calcium oxide 1.33wt%, germanium 0.049wt%, sulphur 29.65wt%；Zinc concentrate yield is 3.26wt%.Produced tailing moisture content
30.28wt%, 0.08wt% containing zinc, magnesia 14.62wt%, calcium oxide 24.11wt%, germanium 0.0033wt%, sulphur 0.42wt%；Tailing
Yield is 96.74wt%；
2nd, from zinc ore to the process of product zinc concentrate, the rate of recovery of its zinc is 96.29wt%, the rate of recovery of germanium
33.33wt%, calcium oxide inhibiting rate 99.82wt%, magnesia inhibiting rate 99.90wt%；
3rd, from above index can be seen that calcium, magnesium suppresses the ore dressing process of combination medicament, its calcium, magnesium are almost suppressed to
In tailing, and the grade of the valuable metal such as the zinc of produced zinc concentrate, germanium, sulphur and the rate of recovery are improved；Meanwhile do not produce
New waste water,waste gas and industrial residue.
Example IV
The collocation method of combination medicament presses 1.4 for ten sulfate dihydrate aluminium ammoniums and waterglass：It is made into after 1 ratio mixing
The aqueous solution of 8wt%, then adjust the selected addition of its pH value of solution=2.4, second with concentrated hydrochloric acid and be changed to 130g/t, third time essence
The addition of choosing is changed to 80g/t.
Embodiment five
The collocation method of combination medicament presses 1.3 for Potassium aluminum sulfate dodecahydrate and waterglass：It is made into after 1 ratio mixing
The aqueous solution of 7wt%, then adjust the selected addition of its pH value of solution=2.3, second with the concentrated sulfuric acid and be changed to 120 g/t, third time
Selected addition is changed to 60 g/t.
Embodiment six
The collocation method of combination medicament for ten sulfate dihydrate aluminium ammoniums and Potassium aluminum sulfate dodecahydrate with waterglass by weight
1.1：The aqueous solution of 9wt% is made into after 1 ratio mixing, then its pH value of solution=2.1 is adjusted with sulfuric acid or hydrochloric acid, second selected
Addition be changed to 110 g/t, the selected addition of third time is changed to 90 g/t.
Claims (7)
1. a kind of suppress calcium, the method for magnesium in ore dressing process, the method is the flotation work using " roughing, scan, is selected "
Skill is flotated the zinc in zinc ore in the form of zinc concentrate, it is characterised in that the zinc ore calcic, magnesium is high and calcium, magnesium in
Dolomite form is present in ore, 1.5wt% containing zinc ~ 2.5wt%, 10.0wt% containing magnesia ~ 15.0wt%, germanic 0.004wt%
~ 0.006wt%, leaded 0.1wt% ~ 0.2wt%, sulfur-bearing 1.0wt% ~ 1.5wt%, iron content 0.5wt% ~ 1.0wt%, siliceous 3.0wt% ~
5.0wt%, 15.0wt% containing calcium oxide ~ 25.0wt%；The combination medicament for suppressing calcium, magnesium, the combination medicament are added when selected
For ten sulfate dihydrate aluminium ammoniums and/or Potassium aluminum sulfate dodecahydrate with waterglass by weight 1.0 ~ 1.5:Match somebody with somebody after 1 ratio mixing
The composition that its pH value of solution=2.0 ~ 2.5 obtains is adjusted into the aqueous solution of 5wt% ~ 10wt%, then with sulfuric acid or hydrochloric acid；Floatation process
For：
1）One roughing：Raw material is milled to the miberal powder that 100wt% crosses 160 mesh sieve nets with dry ball；With pulp liquid to miberal powder into
Row pulp, it is 40wt% ~ 50wt% to make pulp density, adds 300 ~ 400g/t regulators, makes pH values of pulp=6 ~ 7, stirs 2 ~ 3min,
100 ~ 150g/t activators are added, stir 2 ~ 3min, add 150 ~ 200g/t collecting agents, stir 2 ~ 3min, then add 50 ~ 60g/t
Foaming agent, stirs 1 ~ 2min, opens charging valve, scrapes 5 ~ 8min of bubble, obtain No. 1 concentrate and No. 1 tailing；
2）Scan for the first time：100 ~ 150g/t regulators are added to No. 1 tailing, make pH values of pulp=6 ~ 7, stir 2 ~ 3min, add 40
~ 50g/t activators, stir 2 ~ 3min, add 30 ~ 40g/t collecting agents, stir 2 ~ 3min, then add 10 ~ 20g/t of foaming agent, stirring
1 ~ 2min, opens charging valve, scrapes 5 ~ 8min of bubble, obtain first time scavenger concentrate and No. 2 tailings；
3）Scan for the second time：60 ~ 100g/t regulators are added to No. 2 tailings, make pH values of pulp=6 ~ 7, stir 2 ~ 3min, add 30 ~
40g/t activators, stir 2 ~ 3min, add 20 ~ 30g/t collecting agents, stir 2 ~ 3min, then add 5 ~ 10g/t of foaming agent, and stirring 1 ~
2min, opens charging valve, scrapes 5 ~ 8min of bubble, obtain second of scavenger concentrate and No. 3 tailings；
4）Third time is scanned：40 ~ 50g/t regulators are added to No. 3 tailings, make pH values of pulp=6 ~ 7, stir 2 ~ 3min, add 10 ~
20g/t activators, stir 2 ~ 3min, add 10 ~ 20g/t collecting agents, stir 2 ~ 3min, then add 5 ~ 10g/t of foaming agent, and stirring 1 ~
2min, opens charging valve, scrapes 5 ~ 8min of bubble, obtain third time scavenger concentrate and No. 4 tailings；No. 4 tailing filtrations obtain No. 2 filters
Liquid and tailing, No. 2 filtrates, which are returned, does pulp liquid, and tailing is sent into Tailings Dam；
5）It is selected for the first time：No. 1 concentrate and first time scavenger concentrate, second of scavenger concentrate and third time scavenger concentrate are adjusted
It is 40 ~ 50wt% that slurries, which are adjusted to pulp density, adds 30 ~ 40g/t regulators, makes pH values of pulp=6 ~ 7, stirs 2 ~ 3min, add 10 ~
20g/t activators, stir 2 ~ 3min, add 10 ~ 20g/t collecting agents, stir 2 ~ 3min, then add 5 ~ 10g/t of foaming agent, and stirring 1 ~
2min, opens charging valve, scrapes 5 ~ 8min of bubble, obtains No. 2 concentrate and chats, and middling recurrence is selected for the first time；
6）Second selected：It is 40 ~ 50wt% that No. 2 concentrate are added with water adjustment pulp density, adds 30 ~ 40g/t regulators, makes
PH values of pulp=6 ~ 7, stir 2 ~ 3min, add 10 ~ 20g/t activators, stir 2 ~ 3min, add 100 ~ 150g/t combination medicaments and do
Calcium, magnesium inhibitor, stir 2 ~ 3min, add 10 ~ 20g/t collecting agents, stir 2 ~ 3min, then add 5 ~ 10g/t of foaming agent, and stirring 1 ~
2min, opens charging valve, scrapes 5 ~ 8min of bubble, obtains chats and No. 3 concentrate, and middling recurrence is selected for the first time；
7）It is selected for the third time：It is 40 ~ 50wt% that No. 3 concentrate are added with water adjustment pulp density, adds 30 ~ 40g/t regulators, makes
PH values of pulp=6 ~ 7, stir 2 ~ 3min, add 10 ~ 20g/t activators, stir 2 ~ 3min, add 50 ~ 100g/t combination medicaments and do
Calcium, magnesium inhibitor, stir 2 ~ 3min, add 10 ~ 20g/t collecting agents, stir 2 ~ 3min, then add No. 25 ~ 10g/t of oil of foaming agent,
1 ~ 2min is stirred, charging valve is opened, scrapes 5 ~ 8min of bubble, obtain chats and No. 4 concentrate；Middling recurrence is selected for the first time, to No. 4
Concentrate carries out that zinc concentrate and No. 1 filtrate is obtained by filtration, and No. 1 filtrate returns selected for the first time.
2. method according to claim 1, it is characterised in that the combination medicament is ten sulfate dihydrate aluminium ammoniums and/or 12 water
Alum is with waterglass by weight 1.1 ~ 1.4:The aqueous solution of 6wt% ~ 9wt% is made into after 1 ratio mixing, then uses sulfuric acid
Or hydrochloric acid adjusts the composition that its pH value of solution=2.1 ~ 2.4 obtains.
3. method according to claim 1, it is characterised in that the combination medicament is ten sulfate dihydrate aluminium ammoniums and/or 12 water
Alum is with waterglass by weight 1.2 ~ 1.3:It is made into the aqueous solution of 7wt% ~ 8wt% after 1 ratio mixing, then with dense sulphur
Acid or concentrated hydrochloric acid adjust the composition that its pH value of solution=2.2 ~ 2.3 obtains.
4. method according to claim 1, it is characterised in that the regulator is the aqueous sodium carbonate of 5 ~ 10wt%.
5. method according to claim 1, it is characterised in that the activator is the copper sulfate solution of 5 ~ 10wt%.
6. method according to claim 1, it is characterised in that the collecting agent is the butyl xanthate aqueous solution of 5 ~ 10wt%.
7. method according to claim 1, it is characterised in that the foaming agent is No. 2 oil.
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| CN110813546A (en) * | 2019-11-28 | 2020-02-21 | 昆明理工大学 | Flotation method of high-calcium-magnesium type oxidized and vulcanized mixed copper ore |
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| CN105728199B (en) * | 2016-02-02 | 2019-11-12 | 北京矿冶研究总院 | Method for recovering silver from silver-containing vanadium ore through chemical activation flotation |
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| US4261846A (en) * | 1979-07-23 | 1981-04-14 | United States Borax & Chemical Corporation | Composition for froth flotation of zinc sulfide |
| CN1063058A (en) * | 1991-12-31 | 1992-07-29 | 广州有色金属研究院 | Fluorite technology and adjustment agent composition thereof |
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