CN106337130A - Preparation method of zinc oxide leaching agent by wet method and preparation device applying preparation method - Google Patents
Preparation method of zinc oxide leaching agent by wet method and preparation device applying preparation method Download PDFInfo
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- CN106337130A CN106337130A CN201610738995.0A CN201610738995A CN106337130A CN 106337130 A CN106337130 A CN 106337130A CN 201610738995 A CN201610738995 A CN 201610738995A CN 106337130 A CN106337130 A CN 106337130A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/12—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions
- C22B3/14—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions containing ammonia or ammonium salts
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/22—Obtaining zinc otherwise than by distilling with leaching with acids
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/24—Obtaining zinc otherwise than by distilling with leaching with alkaline solutions, e.g. ammonia
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/34—Obtaining zinc oxide
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/02—Apparatus therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The invention discloses a preparation method of a zinc oxide leaching agent by a wet method and a preparation device applying the preparation method. The preparation method is characterized by comprising the following steps of: screening: putting zinc-bearing powder into a powder screening barrel of a screening mechanism for screening, feeding the powder with a particle diameter less than 0.1mm into a mixing and stirring tank via screening, adding a leaching solution into the mixing and stirring tank at the same time, mixing the leaching solution and the screened powder, stirring the leaching solution and the powder via a mixing barrel stirring mechanism at the room temperature at a rotating speed of 80-90 r/min at the same time to form a primary leaching agent, and reaction and stirring: stirring mixed liquid in the mixing and stirring tank via a reaction tank stirring mechanism for reaction at the room temperature at a rotating speed of 36-85 r/min for 3-4h after the mixed liquid enters a reaction tank through an overflow port in the mixing and stirring tank, and obtaining the qualified leaching agent when a zinc content is 100-130 g/L via sampling. The preparation method of the zinc oxide leaching agent by the wet method optimizes wet method preparation conditions, the zinc-bearing yield of the leaching agent is higher, and the preparation method is suitable for continuous production.
Description
[technical field]
The present invention relates to a kind of its preparation facilities of preparation method and application of wet oxidation zinc lixiviating solution.
[background technology]
Modern hydrometallurgy almost covers all metal smeltings in addition to iron and steel, its whole smelter of some metals
Skill belongs to hydrometallurgy, but great majority be mineral decompose, extract and removal of impurities adopt wet processing, be finally reduced into metal using fire
Method smelt or powder metallurgy complete, typical hydrometallurgy have tungsten, molybdenum, tantalum, niobium, cobalt, nickel, rare earth, uranium, thorium, bismuth, tin, copper,
Lead, zinc, titanium, manganese, vanadium, Au Ag Pt Pd, indium, ruthenium, osmium, iridium, germanium, gallium etc., are typically first separated out with oxide, then reduce
To metal.
Than more typical be exactly nano zine oxide (zno), it be a kind of particle diameter between 1-100nm, geared to the 21st century
New high function fine inorganic product, show many special properties, such as non-migratory, fluorescence, piezoelectricity, absorption and
Scatters ultraviolet ability etc., high-purity zinc oxide is a kind of indispensable high-tech raw material of modern industry, of many uses, main use
In glass, feed, pottery, dyestuff, paint, papermaking, rubber, agricultural chemicals, oil refining, zinc-plated, special steel material, alloy, science and techniques of defence etc.
Tens of kinds of industry and enterprises, either glass, papermaking, or rubber, oil refining etc. are all in great demand to zinc oxide, and purity will
Ask very high.
Every technical-economic index of zinc hydrometallurgy, is decided by leach selected technological process and behaviour to a great extent
The technical conditions being controlled during work, the purpose of leaching process is that the zinc in raw material is completely dissolved entrance solution as far as possible
In, and after leaching displacement reaction, take measures, remove the objectionable impurities such as part iron, silicon, arsenic, antimony, germanium, the choosing of leaching solution
Select, extreme influence leaches the output of product, also affects sinking speed, strainability simultaneously and whether is easy to solid-liquor separation
Deng.
The solution of zinc hydrometallurgy is closed cycle, therefore in holding system, the volume of solution, the amount of metal putting into and ore pulp are clear
Dense mud given volume after clear concentration, the holding liquid volume balance generally said, tenor balance and slag balance are leachings
The substance of process is it is desirable in subsequent leaching operation, in leaching process, liquid has lamination in itself, and strength of fluid
Also can persistently change, fixing mixing speed it is impossible to enough meet the actual change in concentration needs of liquid, and because of liquid in actual job
Body slag inclusion, or have zinc oxide crystalline deposit, pipeline blocks often, leads to stop work and production to be cleared up, has a strong impact on the company of production
Continuous property, causes efficiency to reduce.
Existing Zinc hydrometallurgy process it is important to the higher leachate of extraction rate to be obtained, the technical grade side that market is commonly used
Often extraction rate, below 90%, and is not suitable for working continuously method, leads to production cost to increase.
[content of the invention]
The preparation method of wet oxidation zinc lixiviating solution, the invention aims to overcoming the deficiencies in the prior art, is provided,
Optimize wet method preparation condition, gained leachate must expect that rate is higher containing zinc, suitable continuous industry produces.
The present invention also provides a kind of oxidation zinc lixiviating solution preparation facilities applying described preparation method, suitable differential responses bar
The preparation demand of part, is suitable for production of working continuously.
The present invention to achieve these goals, employs the following technical solutions:
A kind of preparation method of wet oxidation zinc lixiviating solution, comprises the following steps:
A, screening: by zincilate material put into screening mechanism powder screening bucket in sieved, screened by particle diameter
Mixing and stirring tank sent into by powder less than 0.1mm；
B, mix and blend: add leaching liquid into mixing and stirring tank simultaneously, and mix with screened powder, pass through simultaneously
Stir under tempering tank rabbling mechanism normal temperature, rotating speed: 80～90r/min, obtain primary leachate；
C, reaction stirring: after the mixed liquor blended agitator tank overflow head piece of mixing and stirring tank enters retort, reacted
Stirring reaction under tank rabbling mechanism normal temperature, rotating speed: 36～85r/min, mixing time: 3～4 hours, sampling was demarcated containing zinc 100
During～130g/l, obtain qualified leachate.
As above a kind of preparation method of wet oxidation zinc lixiviating solution it is characterised in that: described leaching liquid be containing
There is the mixture of nh3 and nh4hco3, process ph value is 8.0～9.5.
As above a kind of preparation method of wet oxidation zinc lixiviating solution it is characterised in that: described leaching liquid be containing
There is the ammino-complex of sulfate radical, process ph value is 4.5～5.2.
The oxidation zinc lixiviating solution preparation facilities of preparation method described in a kind of application claim 1, including mitigation agitator tank, sieve
Sub-agencies and retort, described mixing and stirring tank includes mixing tank body, and described mixing tank body top is provided with screening mechanism, described mixed
Close tank body top be provided with extend in described blending tank body for agitated liquid mix and blend mechanism and with described screening mechanism
The powder entrance connecting, the side of described mixing tank body is provided with and exports for the leachate deriving primary leachate to retort,
Described mixing tank body top is additionally provided with the leaching liquid entrance for importing leaching liquid.
As above a kind of oxidation zinc lixiviating solution preparation facilities it is characterised in that: described retort includes reacting tank body,
Described reacting tank body top is provided with to extend in described reacting tank body and mixes for the secondary rabbling mechanism of agitated liquid with described
Close the leachate entrance of tank body connection, described reacting tank body bottom is provided with can reduce line clogging and connect solid-liquid separation device
Anti-blocking discharging mechanism, described secondary rabbling mechanism include located at described reacting tank body top reaction stirring driver and by
Described reaction stirring driver drives rotate and extend into the reaction shaft within described reacting tank body, described reaction shaft
Stage casing be interval with a plurality of vertical stirring blade, the bottom of described reaction shaft is provided with u-shaped stirring vane, described retort
The lower end of shaft is connected with the stirring support base being set up in described reacting tank body bottom.
As above a kind of oxidation zinc lixiviating solution preparation facilities it is characterised in that: described screening mechanism includes Powder screen
Divide bucket, the bottom that described powder sieves bucket is connected with described powder entrance, and the top that described powder sieves bucket is connected with whirlwind collection
The lower end of dust barrel, the upper end of described cyclone dust collection barrel is connected with cloth bag pulsed precipitron.
As above a kind of oxidation zinc lixiviating solution preparation facilities it is characterised in that: described anti-blocking discharging mechanism includes setting
In the dump valve discharged stirring vane and be located at described reacting tank body bottom of described stirring support base bottom, described discharge stirring
Blade together rotates with described secondary shaft, described dump valve its upper surface and described reacting tank body when stirring job state
Inwall is concordant.
As above a kind of oxidation zinc lixiviating solution preparation facilities it is characterised in that: described mixing tank body and reacting tank body
Inner side is respectively equipped with primary spoiler and secondary spoiler, and described primary spoiler is used for coordinating described PRIMARY STIRRING mechanism to liquid
The bodily form flushes in pairs and mixes, and described secondary spoiler cooperation described secondary rabbling mechanism forms the stirring that liquidates, described mixing to liquid
It is equipped with the liner being made up of po material rotational moulding inside tank body and reacting tank body.
As above a kind of oxidation zinc lixiviating solution preparation facilities it is characterised in that: the liquid level in described mixing and stirring tank
Level height is higher than the liquid level height in described reaction agitator tank, and mixing leachate flows into secondary agitator tank by drop
Interior.
As above a kind of oxidation zinc lixiviating solution preparation facilities it is characterised in that: the liquid level water in described reacting tank body
Flat height is higher than the liquid level height in described mixing and stirring tank, and mixing leachate is admitted in reacting tank body by pumping.
The present invention, with respect to prior art, has the advantage that
1st, the method for the present invention is wet method secondary leaching zinc oxide, equipment strong applicability, disclosure satisfy that various metals are smelted
Pre-treatment produce, simultaneously according in the planning of actual factory building, the position of mixing and stirring tank and retort can be adjusted, and leachate
Demarcate 100～130g/l containing zinc, the extraction rate of zinc, up to more than 94%, joins the gained activated zinc oxide product through separation of solid and liquid gained
Matter is best.
2nd, the leaching liquid in the inventive method, can be leaching liquid using the mixture containing nh3 and nh4hco3, be suitable to alkali
Formula method Preparing of Zinc Oxide, may also be employed the ammino-complex of sulfate radical, is suitable to acid method Preparing of Zinc Oxide, highly versatile, reacts conditional
Scope is wide；
3rd, take independent mixing arrangement in the inventive method, reduce equipment investment, charging rate is fast, controllable type is strong,
And improving leaching rate, controlled stirring intensity using the high intensity stirring of mixing and stirring tank, collection reacts, staticly settles, repeatedly leaching
The features such as, a mixing and stirring tank can correspond to multiple retort operations, and multiple retort can use simultaneously, is suitable for continuously entering
Row leaching process；
4th, the solid powder raw material in the inventive method, can improve leaching rate, avoid line clogging, decrease after being sieved
Situation is shut down in equipment fault, and adapted feeds intake dust collecting, greatly improves environment, saves materials, reduces cost；
5th, the mixing and stirring tank in the inventive method and retort have acid and alkali-resistance, and bucket wall liner uses po rotational molding technique system
Become, sturdy and durable, any acid-alkali medium is all suitable for, and volume is big, processing speed is fast, efficiency high, and the anti-blocking discharging of retort
The dump valve of mechanism designs anti-clogging it is ensured that the continuity of production, decreases equipment fault and shuts down；
6th, the mixing and stirring tank in the inventive method and retort, is suitable for the setting of various workshops, according to diverse location height,
Can flexibly arrange in pairs or groups pumping, carry out device layout planning, meet large-scale continuous production demand.
[brief description]
Fig. 1 is schematic diagram of the present invention；
Fig. 2 is schematic diagram of the present invention；
Fig. 3 is partial schematic diagram of the present invention.
[specific embodiment]
As Figure 1-3, the oxidation zinc lixiviating solution preparation dress of the preparation method of present invention application wet oxidation zinc lixiviating solution
Put, including relaxing agitator tank 1, screening mechanism 3 and retort 2, described mixing and stirring tank 1 includes mixing tank body 11, described mixing
Tank body 11 top be provided with extend in described mixing tank body 11 for agitated liquid PRIMARY STIRRING mechanism 12 and with described screening
The powder entrance 13 that mechanism 3 connects, the side of described mixing tank body 11 is provided with for deriving primary leachate to the leaching of retort
Eluate outlet 14, described primary tank body top is additionally provided with the leaching liquid entrance 15 for importing.Zincilate material is dissolved in leaching liquid,
Make both preliminary mixed dissolutions, carry out dissolving displacement, the another partial impurities controlling in powder cannot be dissolved in leaching liquid, or is dissolved in leaching
Precipitation cannot be crystallized, thus decreasing the impurity component in zinc oxide, screening mechanism controls the particle diameter of powder to be less than after taking liquid
0.1mm, can react fully and carry out, and reduce the generation of dust simultaneously again, improve the environment in workshop.
Described retort 2 includes reacting tank body 21, and described reacting tank body 21 top is provided with and extends into described reacting tank body 21
The interior secondary rabbling mechanism 22 for agitated liquid and the leachate entrance 23 connecting with described mixing tank body 11, described reaction
Tank body 21 bottom is provided with the anti-blocking discharging mechanism 24 that can reduce line clogging and be connected with solid-liquid separation device, and described secondary is stirred
Mix mechanism 22 to include located at the secondary stirring driver 221 on described reacting tank body 21 top and stir driver by described secondary
221 drives rotate and extend into the secondary shaft 222 within described reacting tank body 21, the stage casing of described secondary shaft 222
It is interval with a plurality of vertical stirring blade 223, the bottom of described secondary shaft 222 is provided with u-shaped stirring vane 224, described secondary
The lower end of level shaft 222 is connected with the stirring support base 225 being set up in described reacting tank body 21 bottom.Using mixing and stirring tank
Powder is mixed with leaching liquid, carries out PRIMARY STIRRING, make both carry out dissolving displacement for the first time, more primary leachate is sent into reaction
Tank body, proceeds dissolving displacement, along with the dissolving of zincilate material in whipping process, and the precipitation containing zinc crystal,
In reacting tank body, located at a plurality of stirring vane of secondary shaft middle and upper part, stirring vane is arranged perpendicular to secondary shaft, main
To be stirred for the less liquid of top crystallization, to promote its reaction, the u-shaped stirring vane of secondary shaft bottom, outside it
Edge shape is similar with the edge shape of reacting tank body bottom, gapless can stir in tank body and rotate, drive tank base
The more liquid containing crystal is stirred, and secondary stirs the motor via reducer of driver and the control speed governing of frequency converter,
Can be good at tackle solution be layered density unevenness situation, promote zinc displacement reaction in replaced out.
Described screening mechanism 3 includes powder screening bucket 31, and described powder sieves the bottom of bucket 31 and described powder entrance 13
Connection, the top of described powder screening bucket 31 is connected with the lower end of cyclone dust collection barrel 32, and the upper end of described cyclone dust collection barrel 32 is even
It is connected to cloth bag pulsed precipitron 33.Screening mechanism can control the powder particle size entering in PRIMARY STIRRING tank to be less than 0.1mm, from
And overcome because of powder particles heterogeneity, replacement reaction speed uneven problem when leading to leach, can control in working continuously
Zincilate material in addition PRIMARY STIRRING tank and leaching liquid proportioning are corresponding, and reaction speed is stable, and powder sieves the top of bucket simultaneously
It is connected in series cyclone dust collection barrel and cloth bag pulsed precipitron, so that powder is sieved in bucket and maintain negative pressure, the less dust of particle will not
Fly away the workshop of device external, keep the good operating environment in workshop, make the zinc-containing dust flying away be adsorbed reclaiming simultaneously, can
For the reaction that feeds intake again, save cost of material.
Described anti-blocking discharging mechanism 24 includes discharge stirring vane 241 and position located at described stirring support base 225 bottom
In described reacting tank body bottom-discharge valve 242, described discharge stirring vane 241 together rotates with described secondary shaft 222, institute
State dump valve 242 upper surface in non-discharge state concordant with described reacting tank body 21 inwall.Anti-blocking discharging mechanism is used for controlling
Leachate containing zinc oxide crystallization is sent to the speed of back segment separation of solid and liquid, the displacement in working continuously, in reacting tank body
After reaction proceeds to certain time, that is, start to send the leachate crystallizing containing zinc oxide, now discharge stirring vane and continuously stir
Mix, solids will not had arround dump valve to pile up, unlatching and the closure of dump valve will not be hindered, when needing to discharge, on dump valve
Float to open anti-blocking discharging mechanism and discharge and contain the leachate that zinc oxide crystallizes, when in question response tank body, liquid level drops to setting, discharge
Valve sinks to cutting out anti-blocking discharging mechanism, and after dump valve cuts out, its upper surface is concordant with the inwall of reacting tank body bottom, makees in stirring
Solids will not be produced in industry pile up, this kind of anti-clogging designs control of conveniently working continuously.
It is respectively equipped with primary spoiler 16 and secondary spoiler 26 inside described mixing tank body 11 and reacting tank body 21, described
Primary spoiler 16 is used for coordinating described PRIMARY STIRRING mechanism 12 that liquid is formed with the stirring that liquidates, and described secondary spoiler 26 coordinates
Described secondary rabbling mechanism 22 forms the stirring that liquidates to liquid, is equipped with by po inside described mixing tank body 11 and reacting tank body 21
The liner constituting.In mixing tank body and reacting tank body, it is respectively designed with primary spoiler and secondary spoiler, cooperation primary is stirred
Mix mechanism and secondary rabbling mechanism carries out the stirring that liquidates, in tank body, form vortex, promote dissolving displacement reaction to carry out, blending tank
The inner barrel wall liner of body and reacting tank body is made using po rotational molding technique, sturdy and durable, and any acid-alkali medium is all suitable for, also simultaneously
Impact during stirring can be born.
Liquid level height in described mixing and stirring tank 1 is higher than the liquid level height in described retort 2, primary leaching
Go out liquid to flow in reacting tank body by drop.During plant layout's planning, if conditions permit, PRIMARY STIRRING tank can be arranged on liquid
Face position is higher than the place of reacting tank body, and primary leachate can flow into reacting tank body using gravity-head, reduces energy consumption, and
Conveniently work continuously.
Liquid level height in described retort 2 is higher than the liquid level height in described mixing and stirring tank 1, primary leaching
Go out liquid to be admitted in reacting tank body by pumping 4.During plant layout's planning, as special in geographical position condition, mixing can be stirred
Mix tank to be arranged on, liquid level position is less than the place of reacting tank body, using pumping, primary leachate is delivered in reacting tank body, with
The opening and closing of Shi Liyong Liquid level pumping, is limited with the Special geographical position condition overcoming factory's setting, suitable different work ring
The factory building planning and designing in border.
With reference to specific embodiment, preparation method of the present invention is further described:
Embodiment 1:
A, screening: by zincilate material put into screening mechanism powder screening bucket in sieved, screened by particle diameter
Contain zinc 50% powder less than the 10t of 0.1mm and send into tempering tank；
B, mix and blend: add 40m into tempering tank simultaneously3Leaching liquid, and mix with screened powder, pass through simultaneously
Stir under tempering tank rabbling mechanism normal temperature, rotating speed: 80r/min, obtain primary leachate；
C, reaction stirring: after the mixed liquor blended bucket overflow head piece of tempering tank enters retort, reacted tank mixer
Stirring reaction under structure normal temperature, initial stage 36r/min0.5 hour, later stage 58r/min2.5 hour, 116.33g/l containing zinc is demarcated in sampling
Obtain qualified leachate.
Embodiment 2:
A, screening: by zincilate material put into screening mechanism powder screening bucket in sieved, screened by particle diameter
Contain zinc 50% powder less than the 10t of 0.1mm and send into tempering tank；
B, mix and blend: add 40m into tempering tank simultaneously3Leaching liquid, and mix with screened powder, pass through simultaneously
Stir under tempering tank rabbling mechanism normal temperature, rotating speed: 80r/min, obtain primary leachate；
C, reaction stirring: after the mixed liquor blended bucket overflow head piece of tempering tank enters retort, reacted tank mixer
Stirring reaction under structure normal temperature, initial stage 36r/min0.5 hour, later stage 58r/min3.5 hour, 110.43g/l containing zinc is demarcated in sampling
Obtain qualified leachate.
Embodiment 3:
A, screening: by zincilate material put into screening mechanism powder screening bucket in sieved, screened by particle diameter
Contain zinc 50% powder less than the 10t of 0.1mm and send into tempering tank；
B, mix and blend: add 40m into tempering tank simultaneously3Leaching liquid, and mix with screened powder, pass through simultaneously
Stir under tempering tank rabbling mechanism normal temperature, rotating speed: 80r/min, obtain primary leachate；
C, reaction stirring: after the mixed liquor blended bucket overflow head piece of tempering tank enters retort, reacted tank mixer
Stirring reaction under structure normal temperature, initial stage 36r/min0.5 hour, later stage 65r/min2.5 hour, 118.34g/l containing zinc is demarcated in sampling
Obtain qualified leachate.
Embodiment 4:
A, screening: by zincilate material put into screening mechanism powder screening bucket in sieved, screened by particle diameter
Contain zinc 50% powder less than the 10t of 0.1mm and send into tempering tank；
B, mix and blend: add 40m into tempering tank simultaneously3Leaching liquid, and mix with screened powder, pass through simultaneously
Stir under tempering tank rabbling mechanism normal temperature, rotating speed: 80r/min, obtain primary leachate；
C, reaction stirring: after the mixed liquor blended bucket overflow head piece of tempering tank enters retort, reacted tank mixer
Stirring reaction under structure normal temperature, initial stage 36r/min0.5 hour, later stage 75r/min3 hour, sampling is demarcated 118.34g/l containing zinc and is obtained
Qualified leachate.
Embodiment 5:
A, screening: by zincilate material put into screening mechanism powder screening bucket in sieved, screened by particle diameter
Contain zinc 50% powder less than the 10t of 0.1mm and send into tempering tank；
B, mix and blend: add 40m into tempering tank simultaneously3Leaching liquid, and mix with screened powder, pass through simultaneously
Stir under tempering tank rabbling mechanism normal temperature, rotating speed: 80r/min, obtain primary leachate；
C, reaction stirring: after the mixed liquor blended bucket overflow head piece of tempering tank enters retort, reacted tank mixer
Stirring reaction under structure normal temperature, initial stage 36r/min0.5 hour, later stage 85r/min2.5 hour, 118.50g/l containing zinc is demarcated in sampling
Obtain qualified leachate.
Embodiment 6:
A, screening: by zincilate material put into screening mechanism powder screening bucket in sieved, screened by particle diameter
Contain zinc 50% powder less than the 10t of 0.1mm and send into tempering tank；
B, mix and blend: add 40m into tempering tank simultaneously3Leaching liquid, and mix with screened powder, pass through simultaneously
Stir under tempering tank rabbling mechanism normal temperature, rotating speed: 90r/min, obtain primary leachate；
C, reaction stirring: after the mixed liquor blended bucket overflow head piece of tempering tank enters retort, reacted tank mixer
Stirring reaction under structure normal temperature, initial stage 36r/min0.5 hour, later stage 75r/min2.5 hour, 118.51g/l containing zinc is demarcated in sampling
Obtain qualified leachate.
Embodiment 7:
A, screening: by zincilate material put into screening mechanism powder screening bucket in sieved, screened by particle diameter
Contain zinc 50% powder less than the 10t of 0.1mm and send into tempering tank；
B, mix and blend: add 40m into tempering tank simultaneously3Leaching liquid, leaching liquid is mixed containing nh3 and nh4hco3
Compound, and mix with screened powder, pass through to stir under tempering tank rabbling mechanism normal temperature, rotating speed: 80r/min simultaneously, obtain just
Level leachate；
C, reaction stirring: after the mixed liquor blended bucket overflow head piece of tempering tank enters retort, reacted tank mixer
Stirring reaction under structure normal temperature, initial stage 36r/min0.5 hour, later stage 65r/min2.5 hour, 122.50g/l containing zinc is demarcated in sampling
Obtain qualified leachate.
Embodiment 8:
A, screening: by zincilate material put into screening mechanism powder screening bucket in sieved, screened by particle diameter
Contain zinc 50% powder less than the 10t of 0.1mm and send into tempering tank；
B, mix and blend: add 40m into tempering tank simultaneously3Leaching liquid, leaching liquid is mixed containing nh3 and nh4hco3
Compound, and mix with screened powder, pass through to stir under tempering tank rabbling mechanism normal temperature, rotating speed: 90r/min simultaneously, obtain just
Level leachate；
C, reaction stirring: after the mixed liquor blended bucket overflow head piece of tempering tank enters retort, reacted tank mixer
Stirring reaction under structure normal temperature, initial stage 36r/min0.5 hour, later stage 68r/min3 hour, sampling is demarcated 110.00g/l containing zinc and is obtained
Qualified leachate.
Embodiment 9:
A, screening: by zincilate material put into screening mechanism powder screening bucket in sieved, screened by particle diameter
Contain zinc 50% powder less than the 10t of 0.1mm and send into tempering tank；
B, mix and blend: add 40m into tempering tank simultaneously3Leaching liquid, leaching liquid is the ammino-complex containing sulfate radical,
And mix with screened powder, pass through to stir under tempering tank rabbling mechanism normal temperature, rotating speed: 80r/min simultaneously, obtain primary leaching
Liquid；
C, reaction stirring: after the mixed liquor blended bucket overflow head piece of tempering tank enters retort, reacted tank mixer
Stirring reaction under structure normal temperature, initial stage 36r/min0.5 hour, later stage 70r/min2.5 hour, 125.53g/l containing zinc is demarcated in sampling
Obtain qualified leachate.
Embodiment 10:
A, screening: by zincilate material put into screening mechanism powder screening bucket in sieved, screened by particle diameter
Contain zinc 50% powder less than the 10t of 0.1mm and send into tempering tank；
B, mix and blend: add 40m into tempering tank simultaneously3Leaching liquid, leaching liquid is the ammino-complex containing sulfate radical,
And mix with screened powder, pass through to stir under tempering tank rabbling mechanism normal temperature, rotating speed: 90r/min simultaneously, obtain primary leaching
Liquid；
C, reaction stirring: after the mixed liquor blended bucket overflow head piece of tempering tank enters retort, reacted tank mixer
Stirring reaction under structure normal temperature, initial stage 36r/min0.5 hour, later stage 72r/min3.5 hour, 130.00g/l containing zinc is demarcated in sampling
Obtain qualified leachate.
Table 1: leaching ratio contrast
1st, from the test data in table 1, the preparation method of the present invention, it is possible to increase the displacement reaction ratio of zinc in powder
Example, extracts the zinc in raw material to greatest extent, and the zinc recovery rate in identical weight unit mineral material improves 3%～5% about, in fact
Test the running parameter resultant effect showing to invent and adopt embodiment 4 and 5 using this optimal, meeting quantity-produced simultaneously,
Improve leaching ratio, save energy consumption, bring good economic benefit.
2nd, from the test data in table 1, using different acids or alkali formula leaching liquid Preparing of Zinc Oxide, using we
After method and equipment, all can obtain higher extraction rate, this preparation method and equipment are all applicable to soda acid formula medium.
Claims (10)
1. a kind of preparation method of wet oxidation zinc lixiviating solution is it is characterised in that comprise the following steps:
A, screening: zincilate material is put in the powder screening bucket of screening mechanism and is sieved, screened particle diameter is less than
Mixing and stirring tank sent into by the powder of 0.1mm；
B, mix and blend: add leaching liquid into mixing and stirring tank simultaneously, and mix with screened powder, pass through mixing simultaneously
Stir under bucket rabbling mechanism normal temperature, rotating speed: 80～90r/min, obtain primary leachate；
C, reaction stirring: after the mixed liquor blended agitator tank overflow head piece of mixing and stirring tank enters retort, reacted tank stirs
Mix stirring reaction under mechanism's normal temperature, rotating speed: 36～85r/min, mixing time: 3～4 hours, sampling demarcates containing zinc 110～
During 130g/l, obtain qualified leachate.
2. a kind of wet oxidation zinc lixiviating solution according to claim 1 preparation method it is characterised in that: described leaching
Liquid is the mixture containing nh3 and nh4hco3, and process ph value is 8.0～9.5.
3. a kind of wet oxidation zinc lixiviating solution according to claim 1 preparation method it is characterised in that: described leaching
Liquid is the ammino-complex containing sulfate radical, and process ph value is 4.5～5.2.
4. a kind of application claim 1 described in preparation method oxidation zinc lixiviating solution preparation facilities it is characterised in that: include relax
Agitator tank, screening mechanism and retort, described mixing and stirring tank includes mixing tank body, and described mixing tank body top is provided with screening machine
Structure, described mixing tank body top be provided with extend in described blending tank body for agitated liquid mix and blend mechanism and with described
The powder entrance that screening mechanism connects, the side of described mixing tank body is provided with for deriving primary leachate to the leaching of retort
Liquid exports, and described mixing tank body top is additionally provided with the leaching liquid entrance for importing leaching liquid.
5. a kind of oxidation zinc lixiviating solution preparation facilities according to claim 4 it is characterised in that: described retort includes instead
Answer tank body, described reacting tank body top be provided with extend in described reacting tank body for agitated liquid secondary rabbling mechanism and with
The leachate entrance of described mixing tank body connection, described reacting tank body bottom is provided with to reduce line clogging and connect solid-liquid to be divided
Disembark the anti-blocking discharging mechanism of structure, described secondary rabbling mechanism includes the reaction stirring driver located at described reacting tank body top
Rotate and extend into the reaction shaft within described reacting tank body with by described reaction stirring driver drives, described reaction is stirred
The stage casing mixing axle is interval with a plurality of vertical stirring blade, and the bottom of described reaction shaft is provided with u-shaped stirring vane, described anti-
The lower end answering tank shaft is connected with the stirring support base being set up in described reacting tank body bottom.
6. a kind of oxidation zinc lixiviating solution preparation facilities according to claim 4 it is characterised in that: described screening mechanism includes
Powder sieves bucket, and the bottom that described powder sieves bucket is connected with described powder entrance, and the top that described powder sieves bucket is connected with
The lower end of cyclone dust collection barrel, the upper end of described cyclone dust collection barrel is connected with cloth bag pulsed precipitron.
7. a kind of oxidation zinc lixiviating solution preparation facilities according to claim 5 it is characterised in that: described anti-blocking discharging mechanism
Including the dump valve discharged stirring vane and be located at described reacting tank body bottom located at described stirring support base bottom, described row
Go out stirring vane together to rotate with described secondary shaft, described dump valve its upper surface when stirring job state is secondary with described
Level inner tank wall is concordant.
8. a kind of oxidation zinc lixiviating solution preparation facilities according to claim 5 it is characterised in that: described mixing tank body and anti-
Answer and inside tank body, be respectively equipped with primary spoiler and secondary spoiler, described primary spoiler is used for coordinating described PRIMARY STIRRING machine
Structure forms the stirring that liquidates to liquid, and described secondary spoiler cooperation described secondary rabbling mechanism forms the stirring that liquidates, institute to liquid
State and be equipped with, inside mixing tank body and reacting tank body, the liner being made up of po material rotational moulding.
9. a kind of oxidation zinc lixiviating solution preparation facilities according to any one of claim 4-8 it is characterised in that: described mixing
Liquid level height in agitator tank is higher than the liquid level height in described reaction agitator tank, and mixing leachate passes through hydraulic current
Enter in secondary agitator tank.
10. a kind of oxidation zinc lixiviating solution preparation facilities according to any one of claim 4-8 it is characterised in that: described anti-
Answer the liquid level height that the liquid level height in tank body is higher than in described mixing and stirring tank, mixing leachate passes through pumping quilt
Send in reacting tank body.
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| CN1718783A (en) * | 2005-03-26 | 2006-01-11 | 尹国宗 | Technololgy of extracting zinc, copper, nickel, cobalt from oxide ore by hydrometallurgy and its device |
| CN102861902A (en) * | 2012-09-10 | 2013-01-09 | 北京科技大学 | Continuous preparation device for composite stirred semi-solid slurry |
| CN104762473A (en) * | 2015-04-29 | 2015-07-08 | 中南大学 | Method for leaching low-grade zinc oxide ore |
| CN205501393U (en) * | 2016-04-13 | 2016-08-24 | 赣州齐飞新材料有限公司 | Dissolving device for rare earth extraction |
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2016
- 2016-08-26 CN CN201610738995.0A patent/CN106337130A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1718783A (en) * | 2005-03-26 | 2006-01-11 | 尹国宗 | Technololgy of extracting zinc, copper, nickel, cobalt from oxide ore by hydrometallurgy and its device |
| CN102861902A (en) * | 2012-09-10 | 2013-01-09 | 北京科技大学 | Continuous preparation device for composite stirred semi-solid slurry |
| CN104762473A (en) * | 2015-04-29 | 2015-07-08 | 中南大学 | Method for leaching low-grade zinc oxide ore |
| CN205501393U (en) * | 2016-04-13 | 2016-08-24 | 赣州齐飞新材料有限公司 | Dissolving device for rare earth extraction |
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