CN106337120A - Multiphase medium synergic leaching aid method for ionic type rare earth ore - Google Patents
Multiphase medium synergic leaching aid method for ionic type rare earth ore Download PDFInfo
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- CN106337120A CN106337120A CN201611074994.7A CN201611074994A CN106337120A CN 106337120 A CN106337120 A CN 106337120A CN 201611074994 A CN201611074994 A CN 201611074994A CN 106337120 A CN106337120 A CN 106337120A
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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
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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
- C22B59/00—Obtaining rare earth metals
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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
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Abstract
The invention provides a multiphase medium synergic leaching aid method for ionic type rare earth ore. The leaching process comprises the step that a liquid-phase leaching agent is added for leaching. The method is characterized in that ZZJ-18 is also added to serve as a liquid-phase leaching aid agent in the leaching process. Ionic type rare earth leached through the method is good in beneficiation index, high in leaching recovery efficiency and low in production cost; the new multiphase medium synergic leaching aid method is stable, efficient, good in seepage effect, sufficient in exchange reaction, high in leaching index, environmentally friendly and free of pollution, thereby being suitable for application and popularization.
Description
Technical field
The invention belongs to ore dressing field, more particularly, to a kind of ion type rareearth ore multiphase medium works in coordination with the method helping leaching.
Background technology
Ion type rareearth ore is China's distinctive rare earth mineral resources, is rich in middle heavy rare earth element because of it, partition is complete, put
Penetrating property is lower than degree, has become the grand strategy resource that China limits exploitation.Being in hydration or hydroxyl water Rare Earth Elements more
The form of cations is adsorbed in the clay mineral such as kaolinite, illite surface, stable chemical nature.Using chemical property more
Active cation can occur ion-exchange reactionss with rare earth ion, and then Extraction of rare earth.At present, for ion type rareearth ore
Molten leaching ore dressing, the electrolyte solution such as industrial commonly used ammonium sulfate, ammonium chloride, sodium chloride, potassium chloride, magnesium chloride makees leaching agent
Carry out leaching to reclaim.However, ion type rareearth ore property is special, itself and dependent crystalline mineral form, but with from
Sub- phase morphology is adsorbed in clay mineral interface, and when leaching agent injection ore body infiltration is leached, leaching will be constructed in clay mineral surface
Negate the leaching body system answered.And leaching body system is the leaching environment being collectively constituted by gas, solid, liquid three-phase, rare earth element efficient
Leach depending on synergism between three-phase.The clay mineral existing as solid phase is the carrier of rare earth element load, wherein unit
Cellulose content, mineralogical composition, stone-like pulse property, ore grain size and clay content etc. are on leaching effect impact greatly;Liquid phase be leaching agent,
The carrier that rare earth leaches, is rare earth element dissolving, migration, the medium of separation and Extraction, solution ph, ion concentration and leaching agent
All affect leaching effect;Gas phase is Leach reaction indispensable material source, affects leaching rate, course of reaction and oozes
Stream negative pressure.Interaction between leaching body system gas, solid, liquid is to realize the critical process that ion type rareearth efficiently leaches.
Because ion type rareearth ore distinctive reaction solid phase (clay mineral) property is complicated, add clay after liquid phase leaching agent
Mineral can occur the physics chemical action such as water-swellable, spread apart, and the solid phase cement of its interlayer is dissolved in water, and becomes liquid
Phase, causes to react the decline of solid phase cohesiveness;Meanwhile, clay interlayer dissociates because of hydrion, leads to surface lotus negatively charged, causes clay
Repel each other effect with electricity between mineral solid phase, so that solid volume is increased and lead to expand;In addition, clay mineral is negative as rare earth element
Carry solid phase, its granule free water between layers and surface-bonded water can produce absorption, tape-supported adhesive and inhibition to liquid phase leaching agent, seriously
Affect the seepage flow of molten dipped journey liquid phase;Again, because of the change of leaching process liquid phase factor, position in rare earth ore body is led to be fixed
There is position change in the solid phases such as the discrete particles of the discrete cloth of skeleton particle and duct middle reaches, and then affect the hole in solid phase duct
Rate, causes seepage flow duct deposition and the knot that becomes silted up;Finally, because seepage flow duct blocks, leaching body system gas phase is caused to be obstructed, by liquid phase seepage flow
And the reaction gas phase wretched insufficiency dissolving, migrating, cause rare earth leaching to react thorough, efficiency reduction.Above-mentioned reason cause from
Subtype Rare Earth Mine molten leaching during seepage flow be obstructed, ion-exchange reactionss insufficient, ore body expand unbalance stress, slope stability
Difference, clay mineral hydrophilic wettability is poor, leaching efficiency is low, and leaching agent consumption is big, production cost is high, is also easy to produce seepage flow dead band/blind
The problems such as area, rainwash, ammonia and nitrogen pollution.
Content of the invention
For ion type rareearth ore leaching body system generally existing seepage flow effect poor, reaction is insufficient, leaching efficiency is low, leaching
The problems such as go out that agent consumption is big, production cost is high, be also easy to produce environmental pollution, it is an object of the invention to provide a kind of stable, efficient,
Seepage flow effect is good, exchange reaction abundant, leach index height, low production cost, environment friendly and pollution-free multiphase medium are worked in coordination with and help leaching new
Method.
The purpose of the present invention is achieved through the following technical solutions.
Ion type rareearth ore multiphase medium is worked in coordination with and is helped leaching method, and its molten dipped journey includes adding liquid phase leaching agent to be soaked
Go out it is characterised in that its molten dipped journey is additionally added zzj-18 and makees liquid phase leaching agent.
The ion type rareearth ore multiphase medium of the present invention is worked in coordination with and is helped leaching method it is characterised in that the liquid that adds of its molten dipped journey
Phase leaching agent is one of potassium chloride, sodium chloride, magnesium chloride, calcium chloride.
The ion type rareearth ore multiphase medium of the present invention is worked in coordination with and is helped leaching method it is characterised in that the step bag of its molten dipped journey
Include:
(1) ion type rareearth ore is mixed with gravel, load molten leaching post;
(2) liquid phase leaching agent and leaching agent zzj-18 are dissolved, mix;
(3) liquid phase having configured leaching agent and leaching agent zzj-18 are carried out shower-bubble type to leaching post middle rare earth ore deposit, collect liquid phase
Leachate.
The ion type rareearth ore multiphase medium of the present invention is worked in coordination with and is helped leaching method it is characterised in that the gravel grain of its molten dipped journey
Footpath is 10 ~ 20mm, adds quality for the 10 ~ 20% of rare earth sample size.
The ion type rareearth ore multiphase medium of the present invention is worked in coordination with and is helped leaching method it is characterised in that the liquid phase of its molten dipped journey is soaked
Going out agent concentration is 25 ~ 65g/l, and liquid phase leaching agent zzj-18 concentration is 1.2 ~ 3.5g/l.
The ion type rareearth ore multiphase medium of the present invention is worked in coordination with and is helped leaching method it is characterised in that leaching the liquid phase having configured
Agent and leaching agent zzj-18 spray to solid phase Rare Earth Mine according to the flow velocity of 0.5 ~ 4.0ml/min, by leaching solution admittedly than for
0.45 ~ 1.5ml/g collects leachate.
The ion type rareearth ore multiphase medium of the present invention is worked in coordination with and is helped leaching method it is characterised in that described leaching agent zzj-18 is
With Polyvinylpyrrolidone, vinyl three alkoxysilane, sulfosuccinate polyoxyethylene alcohol monoester potassium as raw material, according to mass ratio
(0.5 ~ 1.6): 0.5:(1.5 ~ 2.8) proportioning mixing, at normal temperatures and pressures with beaker do container, magnetic stirrer 30 ~
40min produces.
Leaching body system is a complicated multiphase coexistence, interactional environment, and the present invention overcomes the deficiencies in the prior art,
There is provided a kind of ion type rareearth ore multiphase medium to work in coordination with and help leaching method, there is following technical characterstic:
(1) it is directed to ion type rareearth ore distinctive solid phase clay mineral, after adding liquid phase leaching agent, water-swellable, expansion can occur
Dissipate separate, unfavorable phenomenon of repelling each other etc. with electricity, cause cohesiveness between solid phase to decline, cause liquid phase seepage flow to be obstructed, react insufficient, side
The problems such as slope is unstable.The present invention molten leaching during annex solution phase leaching agent zzj-18, in leaching agent contain substantial amounts of sun from
Son, cation k after ionizing+Enter the diffusion electric double layer on solid phase particles surface, offset or reduce in molten infiltration discharge orifice road
Negative charge, the thickness of compression solid phase clay mineral diffusion into the surface electric double layer, thus play the work that suppression solid phase clay mineral expands
With significantly improving molten dipped journey chats volume expansion, the problems such as solid phase cohesiveness declines.And traditional leaching technology only add single
Ammonium chloride liquid-like phase leaching agent, not only easily occur to leach the problems such as expand, and the cation easily in liquid phase leaching agent consolidated
The anionic associative absorption of phase clay mineral surface, leads to the alternate ion-exchange reactionss of solid-liquid two insufficient so that seepage flow effect becomes
Difference, exchange reaction be not thorough, causes leaching rate step-down, and will solve this problem and need to add substantial amounts of liquid phase leaching agent, and then
Production cost is led to remain high.
(2) it is directed to the liquid phase Free water of ion type rareearth ore solid phase particles interlayer and surface-bonded water produces to liquid phase leaching agent
Raw absorption, tape-supported adhesive and inhibition, the problem that impact leaching agent seepage flow leaches.The liquid phase leaching agent zzj-18 tool that the present invention adopts
There is stronger wettability, when liquid phase leaching agent adds molten leaching with leaching agent simultaneously, leaching agent energy moment moistening solid phase clay ore deposit
Nitride layer surface, makes outer layer (liquid-solid interface layer) the seepage flow diffusion on clay mineral surface for the leaching agent, and is not subject to interlayer liquid phase freely
Water and the impact of surface-bonded water, reduce viscous and the drag of liquid phase, make liquid phase leaching agent quickly reach solid phase clay ore deposit
Thing surface simultaneously forms liquid-solid two-phase interfacial film, and then in two-phase interface, ion-exchange reactionss occurs, and significantly improves seepage flow and hinders now
As.And solution leaching method commonly used at present due to a lack of effective liquid phase leaching agent so that add single leaching agent not only because
Liquid phase tape-supported adhesive, inhibition, cause molten infiltration stream to be obstructed, and liquid phase leaching agent reach the time side on solid phase clay mineral surface
Long, lead to liquid-solid two sides reaction interface to build efficiency and reduce, cause leaching efficiency to decline.Even if it is also difficult to increase leaching agent consumption
To solve this difficult problem, on the contrary because leaching agent consumption increases, liquid concentration uprises, and leads to Liquid phase flowability to be deteriorated, leaches seepage flow
Effect is worse.
(3) lead to the fixing skeleton particle in position for during the molten leaching of ion type rareearth ore because of the change of liquid phase factor
There is position change with solid phases such as the discrete particles of the discrete cloth in duct middle reaches, cause ore body porosity to decline, seepage flow duct deposition,
The problems such as silt knot.The present invention adopts the gravel that particle diameter is 10 ~ 20mm uniformly to allocate in rare earth layer, with position firm solid phase gravel
Make skeleton particle, on the one hand significantly improve the pore permeability of solid phase clay mineral, increase pore channel, the liquid-solid two-phase making is anti-
Answer interfacial film to build rapidly, improve Leach reaction efficiency;On the other hand, gravel particle surface is the very strong hydrophilic of wettability
Interface, is conducive to the seepage flow of liquid phase leaching agent to pass through, and shortens the distance that liquid phase leaching agent reaches two-phase interface, accelerates reaction speed
Degree.Meanwhile, leaching agent zzj-18 belongs to Large molecule active material, the macro-radical ionizing out during molten leaching and clay mineral surface
There is chemisorbed, not only stable solid phase bulky grain, prevent it to be subjected to displacement change, and strengthen intergranular cohesiveness, make
The solid phase subparticle flocculation being subjected to displacement is reunited, and then is re-forming liquid phase seepage channel, significantly improves porosity and declines
With duct blockage problem.
(4) when being directed to ion type rareearth ore molten leaching, dissolving, the lack of air of migration, cause airwater mist cooling leaching body system
Building is obstructed reacts thorough, efficiency decline problem so that leaching.The liquid phase leaching agent zzj-18 that the present invention adopts contains alcohol
Class group, has certain foam performance, has brought enough air into so that granule with during leaching agent seepage flow by molten leaching, migration
Surface quickly forms airwater mist cooling interface, produces a small amount of macromole bubble in gas-solid two-phase interface simultaneously, on the one hand increases
The permeability in seepage flow duct and porosity, are that the introducing formation of gas phase creates conditions, on the other hand solve granule during molten leaching
Deposition and silt knot problem.
The leaching agent zzj-18 of the present invention is to be gathered with Polyvinylpyrrolidone, vinyl three alkoxysilane, sulfosuccinate
Oxygen vinyl alcohol monoester potassium be composition, by substantial amounts of theoretical research, Chemicals, interworking addition, proportioning test and succeed in developing.
Its performance characteristics not only combines the advantage of each single component, and passes through burden control, has evaded the defect of each composition.By this
The efficient composition of class, during the molten leaching for ion type rareearth ore after lot of experiments studies proportioning, significantly improves the leachings that mix more
Environment, forms ion type rareearth ore multiphase medium and works in coordination with and helps leaching method, solves existing technical problem, this creative thought and
The various medicaments that are applied in combination and complete set technology are not have as an entirety in ion type rareearth ore molten leaching technical field of beneficiation
Be disclosed and be also not easy to be conceived, be a kind of stable, efficient, seepage flow effect is good, exchange reaction fully, to leach index high, raw
Produce low cost, environment friendly and pollution-free multiphase medium is worked in coordination with and helped leaching new method.
Compared with prior art, it is an advantage of the current invention that:
1. the efficient leaching agent zzj-18 inventing, solve liquid phase leaching agent be obstructed in solid phase clay mineral interlayer seepage flow, ion
Exchange reaction is insufficient, the technical barrier of ore body water-swellable, slope stability difference, significantly improves molten leaching efficiency and imitates with seepage flow
Really.
2. efficiently leaching agent zzj-18 works in coordination with leaching agent molten leaching ion type rareearth ore jointly, solves liquid phase leaching agent to solid
Phase clay mineral wettability is poor, leaching efficiency is low, dosing is big, production cost is high, be also easy to produce the technical barrier of environmental pollution,
The Green Chemistry significantly improving and enhancing ion type rareearth ore is extracted.
3. add gravel make molten leaching reaction solid skeleton channel layer, with liquid phase leaching agent zzj-18 collective effect to dissolve,
Migration reaction air, is that the formation at leaching body system airwater mist cooling interface creates favorable conditions, and forms gas-liquid-solid three-phase and works in coordination with
Help leaching, collective effect, the molten leaching new situation mutually promoted.
Brief description
Fig. 1 works in coordination with, for ion type rareearth ore multiphase medium of the present invention, the flow chart of steps helping leaching method.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
Ion type rareearth ore multiphase medium is worked in coordination with and is helped leaching method, and its molten dipped journey includes adding liquid phase leaching agent to be soaked
Go out, the leaching agent of addition is one of potassium chloride, sodium chloride, magnesium chloride, calcium chloride;Its molten dipped journey is additionally added zzj-18 and makees
Liquid phase leaching agent.
The ion type rareearth ore multiphase medium of the present invention is worked in coordination with and is helped leaching method, and the step of its molten dipped journey includes:
(1) ion type rareearth ore is mixed with gravel, load molten leaching post;
(2) liquid phase leaching agent and leaching agent zzj-18 are dissolved, mix;
(3) liquid phase having configured leaching agent and leaching agent zzj-18 are carried out shower-bubble type to leaching post middle rare earth ore deposit, collect and leach
Liquid.
The ion type rareearth ore leaching body system Strengthen education method of the present invention, the grain size of gravel of its molten dipped journey is 10 ~
20mm, adds quality for the 10 ~ 20% of rare earth sample size;It is 25 ~ 65g/l that liquid phase leaches agent concentration, and leaching agent zzj-18 is dense for liquid phase
Spend for 1.2 ~ 3.5g/l.
The ion type rareearth ore multiphase medium of the present invention is worked in coordination with and is helped leaching method, and the liquid phase having configured is leached by its molten dipped journey
Agent and leaching agent zzj-18 spray to solid phase Rare Earth Mine according to the flow velocity of 0.5 ~ 4.0ml/min, by leaching solution admittedly than for
0.45 ~ 1.5ml/g collects leachate.
Embodiment 1
130g Polyvinylpyrrolidone, 50g vinyl three alkoxysilane, 240g sulfosuccinate polyoxyethylene alcohol monoester potassium are mixed
Close, under normal temperature and pressure, container is done with beaker, magnetic stirrer 30 ~ 40min obtains leaching agent zzj-18.
Embodiment 2
60g Polyvinylpyrrolidone, 50g vinyl three alkoxysilane, 190g sulfosuccinate polyoxyethylene alcohol monoester potassium are mixed
Close, under normal temperature and pressure, container is done with beaker, magnetic stirrer 30 ~ 40min obtains leaching agent zzj-18.
Embodiment 3
110g Polyvinylpyrrolidone, 50g vinyl three alkoxysilane, 220g sulfosuccinate polyoxyethylene alcohol monoester potassium are mixed
Close, under normal temperature and pressure, container is done with beaker, magnetic stirrer 30 ~ 40min obtains leaching agent zzj-18.
Embodiment 4
The sample that leaching test is taken is derived from Ganzhou ion type rareearth mine, and sample reo containing rare earth total amount is 0.069%,
Ore is mainly by sio2And al2o3Composition, is secondly k2O, mgo and tfe etc., main preservation is in quartz, Anhydrite, Muscovitum, Ai Luo
In the clay minerals such as stone, illite;, with ion phase morphology output, air slaking are serious, and clay content is higher for rare earth element.Using general at present
All over the traditional leaching technology using, this ion type rareearth ore is carried out with molten leaching ore dressing to reclaim, the optimal rare earth leaching rate of acquisition is
83.26%.
Worked in coordination with using the ion type rareearth ore multiphase medium of the present invention and help leaching method to carry out molten leaching ore dressing recovery, molten dipped journey
Including adding liquid phase leaching agent nacl to be leached, molten dipped journey is additionally added the leaching agent zzj-18 in embodiment 3, and it sorts step
Suddenly it is:
(1) weigh the gravel 100g that dry ion type rareearth ore 500g is 10 ~ 20mm with particle diameter and mix and load molten leaching post;
(2) leaching agent nacl and hardening agent zzj-18 dissolved, mix;
(3) liquid phase having configured leaching agent nacl and leaching agent zzj-18 is carried out shower-bubble type to molten leaching post middle rare earth ore deposit, receive
Collection leachate.
The liquid phase leaching agent nacl concentration of molten dipped journey is 35g/l, and leaching agent zzj-18 concentration is 1.6g/l, and liquid phase leaches
Agent nacl and leaching agent zzj-18 carries out shower-bubble type according to the flow velocity of 2.2ml/min, admittedly receives than for 0.55ml/g by leaching solution
Collection leachate.
The rare earth leaching rate that the present embodiment obtains is 96.78%.
Embodiment 5
The sample that leaching test is taken is derived from Ganzhou ion type rareearth mine, and sample reo containing rare earth total amount is
0.092%, Ore is mainly by sio2And al2o3Composition, is secondly k2O, mgo and tfe etc., main preservation is in kaolinite, quartz, length
In the clay minerals such as stone, Muscovitum, galapectite, illite;, with ion phase morphology output, air slaking are serious, and clay content is relatively for rare earth element
High.Using the traditional leaching technology commonly using at present this ion type rareearth ore is carried out molten leaching ore dressing reclaim, acquisition optimal
Rare earth leaching rate is 87.26%.
Worked in coordination with using the ion type rareearth ore multiphase medium of the present invention and help leaching method to carry out molten leaching ore dressing recovery, molten dipped journey
Including addition liquid phase leaching agent mgcl2Leached, molten dipped journey is additionally added the leaching agent zzj-18 in embodiment 1, and it sorts
Step is:
(1) weigh the gravel 70g that dry ion type rareearth ore 500g is 10 ~ 20mm with particle diameter and mix and load molten leaching post;
(2) by leaching agent mgcl2With hardening agent zzj-18 dissolving, mixing;
(3) by the liquid phase having configured leaching agent mgcl2With leaching agent zzj-18, shower-bubble type is carried out to molten leaching post middle rare earth ore deposit, receive
Collection leachate.
The liquid phase leaching agent mgcl of molten dipped journey2Concentration is 52g/l, and leaching agent zzj-18 concentration is 2.3g/l, and liquid phase is soaked
Go out agent mgcl2Carry out shower-bubble type with leaching agent zzj-18 according to the flow velocity of 3.1ml/min, by leaching solution admittedly than for 1.2ml/g
Collect leachate.
The rare earth leaching rate that the present embodiment obtains is 98.22%.
Embodiment 6
The sample that leaching test is taken is derived from Ganzhou ion type rareearth mine, and sample reo containing rare earth total amount is
0.086%, Ore is mainly by sio2And al2o3Composition, is secondly k2O, mgo and tfe etc., main preservation kaolinite, quartz, angstrom
In the clay minerals such as Lip river stone, illite, Anhydrite, Muscovitum;, with ion phase morphology output, air slaking are serious, and clay content is relatively for rare earth element
High.Using the traditional leaching technology commonly using at present this ion type rareearth ore is carried out molten leaching ore dressing reclaim, acquisition optimal
Rare earth leaching rate is 86.47%.
Worked in coordination with using the ion type rareearth ore multiphase medium of the present invention and help leaching method to carry out molten leaching ore dressing recovery, molten dipped journey
Including addition liquid phase leaching agent cacl2Leached, molten dipped journey is additionally added the leaching agent zzj-18 in embodiment 3, and it sorts
Step is:
(1) weigh the gravel 65g that dry ion type rareearth ore 500g is 10 ~ 20mm with particle diameter and mix and load molten leaching post;
(2) by leaching agent cacl2With hardening agent zzj-18 dissolving, mixing;
(3) by the liquid phase having configured leaching agent cacl2With leaching agent zzj-18, shower-bubble type is carried out to molten leaching post middle rare earth ore deposit, receive
Collection leachate.
The liquid phase leaching agent cacl of molten dipped journey2Concentration is 47g/l, and leaching agent zzj-18 concentration is 2.4g/l, and liquid phase is soaked
Go out agent cacl2Carry out shower-bubble type with leaching agent zzj-18 according to the flow velocity of 2.8ml/min, by leaching solution admittedly than for 1.1ml/g
Collect leachate.
The rare earth leaching rate that the present embodiment obtains is 98.11%.
The content not being described in detail in this specification is prior art known in professional and technical personnel in the field.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (4)
1. ion type rareearth ore multiphase medium is worked in coordination with and is helped leaching method, and its molten dipped journey includes adding liquid phase leaching agent to be leached,
The leaching agent adding is one of potassium chloride, sodium chloride, magnesium chloride, calcium chloride;It is characterized in that its molten dipped journey is additionally added
Zzj-18 makees liquid phase leaching agent.
2. ion type rareearth ore multiphase medium according to claim 1 is worked in coordination with and is helped leaching method it is characterised in that it is molten dipped
The step of journey includes:
(1) ion type rareearth ore is mixed with gravel, load molten leaching post;
(2) liquid phase leaching agent and leaching agent zzj-18 are dissolved, mix;
(3) liquid phase having configured leaching agent and leaching agent zzj-18 are carried out shower-bubble type to leaching post middle rare earth ore deposit, collect and leach
Liquid.
3. ion type rareearth ore leaching body system Strengthen education method according to claim 1 is it is characterised in that it is molten dipped
The grain size of gravel of journey is 10 ~ 20mm, adds quality for the 10 ~ 20% of rare earth sample size;It is 25 ~ 65g/l that liquid phase leaches agent concentration,
Liquid phase leaching agent zzj-18 concentration is 1.2 ~ 3.5g/l.
4. ion type rareearth ore multiphase medium according to claim 1 is worked in coordination with and is helped leaching method it is characterised in that will configure
Liquid phase leaching agent and leaching agent zzj-18 according to the flow velocity of 0.5 ~ 4.0ml/min, solid phase Rare Earth Mine is sprayed, by molten leaching
Liquid-solid ratio is that 0.45 ~ 1.5ml/g collects leachate;Described liquid phase leaching agent zzj-18 is with Polyvinylpyrrolidone, ethylene
Base three alkoxysilane, sulfosuccinate polyoxyethylene alcohol monoester potassium be raw material, according to mass ratio (0.5 ~ 1.6): 0.5:(1.5 ~
2.8) proportioning mixing, makees container with beaker, magnetic stirrer 30 ~ 40min produces at normal temperatures and pressures.
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