CN106957959A - A kind of leaching of ores separation multi-section tube type counterflow leaching reaction unit - Google Patents
A kind of leaching of ores separation multi-section tube type counterflow leaching reaction unit Download PDFInfo
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- CN106957959A CN106957959A CN201710371426.1A CN201710371426A CN106957959A CN 106957959 A CN106957959 A CN 106957959A CN 201710371426 A CN201710371426 A CN 201710371426A CN 106957959 A CN106957959 A CN 106957959A
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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
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Abstract
Present invention offer is a kind of can to improve the leaching of ores separation multi-section tube type counterflow leaching reaction unit of object element leaching rate in mineral, including more than three sections of countercurrent screw infuser, each countercurrent screw infuser is obliquely installed, it is connected between adjacent countercurrent screw infuser by discharge pipe, discharging bin is connected with discharge pipe, feeding warehouse is connected with by feed pipe on first section countercurrent screw infuser, and lower end is connected with steep liquor product accumulator tank by input duct, interlude and latter end countercurrent screw infuser lower end are connected with soda acid fluid reservoir by input duct, soda acid fluid reservoir bottom is communicated with drain pipe road, drain pipe road is connected with the preceding paragraph countercurrent screw infuser, the soda acid fluid reservoir with ortho acid alkali inlet is connected with by stock solution pipe at latter end countercurrent screw infuser top position；Mineral and acid or alkali counterflow leaching are realized, object element leaching rate in mineral is improved, and it can continuously be produced, it is simple to operate.
Description
Technical field
The present invention relates to many metal composite ore deposit fields of hydrometallurgical process, and in particular to a kind of leaching of ores separation multistage
Tubular type counterflow leaching reaction unit.
Background technology
Mineral Resources in China is enriched, but rich ore is few, mostly many metal associated minerals, such as vanadium titano-magnetite, white clouds Hubei Province
Bo Kuang etc., mineral selecting and purchasing smelting process is complicated, long flow path, and beneficial element separating difficulty is big, and utilization rate is not generally high.Leaching is solvent
Optionally in dissolution of minerals certain component technical process, be the important element separating method of field of hydrometallurgy.Extract technology
Task be the appropriate solvent of selection, useful constituent or objectionable impurities in raw mineral materials is optionally dissolved, be transferred to it
In solution, the purpose that useful constituent is separated with objectionable impurities or with gangue component is reached, is particularly suitable for handling many metal composites
Ore deposit.But the most one pot intermittently extraction of current Leaching way, leaching process is discontinuous, and the utilization rate of solvent is low, target element
The shortcomings of plain leaching rate is low, production cost is high.
" swinging continuously leaches unit and continuous reverse flow leaching method ", " horizontal pipeline type continuous counter current extractor " etc. are specially
Profit has invented the device of counterflow leaching, but and unrealized multistage is continuously leached and leaching device does not possess heating function, limitation
In the application field of counterflow leaching technology；The technical field that " multistage spiral continuous countercurrent leaching device " is directed to is that Chinese medicine is carried
Take, and its mode of heating is tube wall external heat, heat transfer efficiency is low, high energy consumption, is unfavorable for it applied to leaching of ores field." one
The method of kind of two sections of counterflow leachings of vanadium slag containing chromium type and separation and Extraction vanadium chromium " and " tellurium in low-temp low-pressure counterflow leaching copper anode mud
Method " propose application of the counterflow leaching in leaching of ores field, but be the failure to provide specific device, and this method is directed to
A certain special mineral object, adaptability is not strong.
The content of the invention
The technical problems to be solved by the invention, which are to provide, a kind of can improve the mineral of object element leaching rate in mineral
Leach separation multi-section tube type counterflow leaching reaction unit.
The technical solution adopted for the present invention to solve the technical problems is：A kind of leaching of ores separation with multi-section tube type countercurrently
Countercurrent screw infuser more than Leach reaction device, including three sections, each countercurrent screw infuser is obliquely installed, adjacent adverse current spiral shell
It is connected between rotation infuser by discharge pipe, the arrival end of discharge pipe is connected with the preceding paragraph countercurrent screw infuser upper end
Logical, the port of export of discharge pipe is connected with next section of countercurrent screw infuser, connects each countercurrent screw infuser head and the tail,
It is connected with discharge pipe on discharging bin, first section countercurrent screw infuser and feeding warehouse is connected with by feed pipe, and lower end is logical
Cross input duct and be connected with steep liquor product accumulator tank, interlude and latter end countercurrent screw infuser lower end pass through input duct
Soda acid fluid reservoir is connected with, soda acid fluid reservoir bottom is communicated with drain pipe road, drain pipe road and the preceding paragraph countercurrent screw infuser
It is connected, liquid pump is connected with drain pipe road, is connected at latter end countercurrent screw infuser top position by stock solution pipe
It is connected to the soda acid fluid reservoir with ortho acid alkali inlet.
Further, countercurrent screw infuser includes leaching and managed, and offers what is be connected with discharge pipe leaching pipe upper end
Discharging opening, bottom offers the liquid outlet being connected with drain pipe road, and feed transmission shaft is provided with leaching in pipe, is passed in feeding
Moving axis is provided with feeding screw, and the feeding screw motor that driving feed transmission shaft is rotated is provided with leaching pipe Basolateral.
Further, outlet valve is provided with the discharge pipe at connection discharging bin two ends, in input duct and stock solution pipe
On be provided with liquid feed valve, inlet valve is provided with feed pipe.
Further, electrical heating coil pipe is provided with soda acid fluid reservoir.
Further, filter membrane is provided with liquid outlet.
Further, filter membrane uses acidproof or alkali corrosion resistance material.
Further, discharge pipe, feeding screw and spiral shaft use fiberglass or titanium alloy material.
Further, it is double glazing steel or the titanium alloy material with heat-insulation layer to leach pipe.
Compared with prior art, the beneficial effects of the invention are as follows：The present apparatus realizes mineral and acid or alkali counterflow leaching, prolongs
The action time of mineral and acid or alkali has been grown, has continuously been leached by multi-section tube type, in the case where not changing original acid or alkali concn, significantly
Improve object element leaching rate in mineral, and the present apparatus can be directly heated to acid or alkali, be conducive to process conditions
The raising with heat utilization efficiency is controlled, and it can continuously be produced, simple to operate, energy-conserving and environment-protective.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Reference is expressed as shown in Fig. 1：1- discharge pipes, 2- soda acid fluid reservoirs, 3- drain pipes road, 4- liquid
Pump, 5- leaches pipe, 6- discharging openings, 7- liquid outlets, 8- feed transmission shafts, 9- feeding screws, 10- discharging bins, 11- outlet valves, 12-
Electrical heating coil pipe, 13- filter membranes, 14- feeding screw motors, 101- feeding warehouses, 102- steep liquor product accumulator tanks, 103- ortho acid alkali
Inlet, 104- feed pipes, 105- inlet valves, 106- stock solution pipes, 201- input ducts, 202- liquid feed valves.
Embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of leaching of ores separation multi-section tube type counterflow leaching reaction unit, including more than three sections inverse
Spiral infuser is flowed, each countercurrent screw infuser is obliquely installed, and passes through the phase of discharge pipe 1 between adjacent countercurrent screw infuser
Even, the arrival end of discharge pipe 1 is connected with the preceding paragraph countercurrent screw infuser upper end, the port of export of discharge pipe 1 with it is next
Section countercurrent screw infuser is connected, and connects each countercurrent screw infuser head and the tail, discharging bin is connected with discharge pipe 1
10, feeding warehouse 101 is connected with by feed pipe 104 on first section countercurrent screw infuser, and lower end is connected by input duct 201
Steep liquor product accumulator tank 102 is connected to, interlude and latter end countercurrent screw infuser lower end are connected with by input duct 201
Soda acid fluid reservoir 2, the bottom of soda acid fluid reservoir 2 is communicated with drain pipe road 3, and drain pipe road 3 is leached with the preceding paragraph countercurrent screw
Device is connected, and liquid pump 4 is connected with drain pipe road 3, and stoste pipe is passed through at latter end countercurrent screw infuser top position
Road 106 is connected with the soda acid fluid reservoir with ortho acid alkali inlet 103；The present invention includes more than three sections of countercurrent screw infuser,
Set by multisection type, extend the action time of mineral and acid or alkali, make object element leaching rate in mineral higher, each adverse current
Spiral infuser is dip-parallel to be set, and is conducive to solution and material antikinesis, is also beneficial to space arrangement, is economized on resources, institute
State, arrival end and the preceding paragraph countercurrent screw leaching of discharge pipe 1 connected by discharge pipe 1 between adjacent countercurrent screw infuser
Go out device upper end to be connected, the port of export of discharge pipe 1 is connected with next section of countercurrent screw infuser, the countercurrent screw is leached
The upper end of device is of a relatively high one end in position when countercurrent screw infuser is tilted, and so, makes multistage counter current spiral infuser shape
Connected into head and the tail, form it into continuity counterflow leaching system, improve the leaching of the overall leaching efficiency of device and object element
Extracting rate, and convenient operation and cleaning maintenance, in Fig. 1, leftmost is first section countercurrent screw infuser, place in an intermediate position
For interlude countercurrent screw infuser, rightmost for latter end countercurrent screw infuser, on latter end countercurrent screw infuser
The orientation place of putting is connected with the soda acid fluid reservoir with ortho acid alkali inlet 103 by stock solution pipe 106, and ortho acid or former alkali pass through ortho acid
Alkali inlet 103 is flowed into soda acid fluid reservoir, then is flowed into by stock solution pipe 106 in latter end countercurrent screw infuser, is entered
And acted on the mineral in latter end countercurrent screw infuser, to leach and be most difficult to extract phase in mineral, after the completion of reaction, material residue is defeated
Deliver in discharging bin 10, leachate is then flowed into the soda acid holding vessel 2 being connected with countercurrent screw infuser bottom, leachate
It is flowed into again by drain pipe road 3 under the pressurization of liquid pump 4 in the countercurrent screw infuser of the preceding paragraph, i.e., interlude is inverse
Spiral infuser is flowed, leachate is acted on the mineral in interlude countercurrent screw infuser, leach medium difficulty in mineral and leach
Thing phase, the leachate obtained after reaction is flowed into the soda acid holding vessel 2 being connected with this section of countercurrent screw device bottom, is leached
Liquid is flowed into the countercurrent screw infuser of the preceding paragraph by drain pipe road 3 under the pressurization of liquid pump 4 again, material then by
It is transported in next section of counterflow leaching device, the like, with the reacted leaching of mineral in interlude countercurrent screw infuser
Liquid is flowed into first section countercurrent screw infuser, and leachate is acted on the mineral in first section countercurrent screw infuser, leaches mineral
In the thing phase that easily leaches, so, by multisection type counterflow leaching reaction unit, active ingredient is fully leached in mineral,
The leachate finally leached is flow in steep liquor product accumulator tank 102, and the material residue for being practically free of effective composition be then discharged to
In the connected discharging bin 10 of end countercurrent screw infuser, leachate and feed separation have effectively achieved mineral and acid or alkali
Counterflow leaching, improve the leaching rate of object element in mineral.
In order to reach higher leaching rate, the selection for countercurrent screw infuser requires of a relatively high, in the present invention, institute
Stating countercurrent screw infuser includes leaching pipe 5, and the discharging opening 6 being connected with discharge pipe 1, bottom are offered in leaching pipe 5 upper end
The liquid outlet 7 being connected with input duct 201 is provided with, is provided with leaching in pipe 5 on feed transmission shaft 8, feed transmission shaft 8
Feeding screw 9 is installed, the feeding screw motor 14 that driving feed transmission shaft 8 is rotated is provided with leaching the Basolateral of pipe 5；This
In invention, countercurrent screw infuser is obliquely installed, and the upper end for leaching pipe 5 is of a relatively high to leach position when pipe 5 is tilted
One end, bottom is then the relatively low one end in position, after leachate and feed separation, is conveyed respectively by discharging opening 6 and liquid outlet 7
Into discharge pipe 1 and drain pipe road 3, feed transmission shaft 8 is provided with leaching in pipe 5, the feed transmission shaft 8 can be in feeding
Rotated under the drive of screw motor 14, so as to drive the feeding screw 9 on feed transmission shaft 8 to rotate, make mineral and acid
Or alkali is fully acted on, separation of solid and liquid is realized, the material after separation is transported in next section of countercurrent screw infuser, and leachate is then
It is easy to operate in flowing to 2 in soda acid holding vessel, it is safe and efficient.
In order that acid or alkali can fully react with mineral, in the present invention, set on the discharge pipe 1 at connection discharging bin 10 two ends
Outlet valve 11 is equipped with, liquid feed valve 202 is provided with the input duct 201 and stock solution pipe 106, on feed pipe 104
It is provided with inlet valve 105；By inlet valve 105 and outlet valve 11, discharging bin 10 and adverse current spiral shell can be entered with control material
The speed of infuser is revolved, the degree that acid or alkali and mineral can fully react on the one hand is effectively improved, on the other hand, effectively
Prevent in device operation process, feed blocking is in pipe 5 is leached, and by liquid feed valve 202, controllable leachate is flowed into soda acid
Speed in fluid reservoir, makes the reaction time of acid or alkali and mineral in pipe 5 is leached longer, reaction more fully, is conducive to carrying
The leaching rate of high object element.
In order to strengthen in the control to process conditions and the raising to heat utilization efficiency, the present invention, set in soda acid fluid reservoir 2
It is equipped with electrical heating coil pipe 12；Electrical heating coil pipe 12 is simple in construction, and the thermal efficiency is high, and mechanical strength is good, can be applied to various liquid
And the heating of acid-base solution, directly acid or alkali are heated by electrical heating coil pipe 12, contribute to the control to process conditions,
Heat utilization efficiency is improved, acid or alkali utilization rate are low, cost-effective.
In order to improve in the precision of leachate, the present invention, filter membrane 13 is provided with the liquid outlet 7；Pass through filter membrane 13
Filtration, it is therefore prevented that the material of smaller particle is mixed into leachate and flowed into soda acid holding vessel 2, is effectively improved leaching
The precision of liquid, while also having reached that separation of solid and liquid does not run the purpose of material.
In order that in the work that filter membrane 13 can more be stablized, the present invention, the filter membrane 13 uses acidproof or alkali corrosion resistance material
Matter；Polytetrafluoroethylene (PTFE) miillpore filter or nylon membrane are can select, it is respectively provided with good mechanical strength, and adsorptivity is strong, it is adaptable to each
Acid-base solution is planted, the corrosion of acid or alkali can be effectively kept out, long service life reduces the replacing number of times of filter membrane 13.
In the present invention, discharge pipe 1, feeding screw 9 and spiral shaft 8 can use fiberglass or titanium alloy material,
The glass Steel Properties are stable, light weight and hard, high mechanical strength, corrosion-resistant, and hot property is good, the titanium alloy intensity is high,
Calorific intensity is high, and with extremely strong corrosion resistance, heat resistance is good, and discharge pipe 1, feeding screw are made using both as material
9 and spiral shaft 8, it is ensured that the superiority of device overall performance, the mechanical strength of device is improved, is difficult it extraneous
Object is damaged, and extends the service life of device.
In the present invention, the leaching pipe 5 is double glazing steel or the titanium alloy material with heat-insulation layer；Leaching pipe 5 is material
With the place of solvent reaction, there is higher requirement for mechanical performance and physical property, fiberglass or titanium alloy are respectively provided with machine
Tool intensity is high, corrosion-resistant, good in thermal property, the characteristics of performance is stable, and fiberglass uses hollow structure, facilitates the peace of internal structure
Dress, the Ti Alloy Strip heat-insulation layer, it is therefore prevented that, heat utilization is influenceed due to the reduction of reaction temperature in device in the course of the work
Rate, is effectively improved the leaching rate of object element, is that material and solvent reaction provide important leverage.
It is used to illustrate that the present apparatus can effectively improve the leaching of object element in mineral present invention also offers two embodiments
Rate；
Embodiment one：
The v-ti magnetite green ore chemical composition (wt%) of table 1
Using v-ti magnetite green ore as object is leached, from table 1, the chemical composition in v-ti magnetite green ore, with salt
Acid is solvent, and the concentration of hydrochloric acid is 20%, and its solid-to-liquid ratio is 7:1, countercurrent screw infuser selects three sections in the present apparatus, carries out three
Section counterflow leaching, every section of reaction time is 1.5h, and leaching total duration is 4.5h, so that the iron in v-ti magnetite green ore is obtained,
V-ti magnetite green ore is entered in first section countercurrent screw device by feeding warehouse 101, and hydrochloric acid is entered in place by stock solution pipe 106
In soda acid fluid reservoir at the countercurrent screw device top position of end, electrical heating coil pipe 12 is provided with soda acid fluid reservoir,
Temperature is increased to 80 DEG C by electrical heating coil pipe 12, make v-ti magnetite green ore and concentration for 20% hydrochloric acid in latter end countercurrently
Reacted in infuser, the reaction solution after obtaining is entered in interlude countercurrent screw reactor, is reacted with mineral, and
Material is then discharged in the discharging bin being connected with latter end countercurrent screw device, after being leached by interlude countercurrent screw infuser
Reaction solution is entered in first section countercurrent screw infuser, is reacted with mineral, after being reacted in first section countercurrent screw infuser
Obtained reaction solution is flowed into steep liquor product accumulator tank 102, and the leaching rate of iron is in final v-ti magnetite green ore
78.67%, and in the case that iron is leached in using leaching device of the prior art to v-ti magnetite green ore, same
Under raw ore and solvent, concentration of hydrochloric acid is also 20%, and solid-to-liquid ratio is 7:1, extraction time is 4.5h, then in v-ti magnetite green ore
The leaching rate of iron is 61.25%, it can be seen that, the leaching rate of iron improves 17.42% in present apparatus v-ti magnetite green ore, leads to
Reaction unit provided by the present invention is crossed, the leaching rate of object element in mineral, convenience and high-efficiency is effectively improved.
Embodiment two：
The chemical composition (wt%) of the titanium chats of table 2
Green ore is leaches object using in titanium, from table 2, the chemical composition in titanium in green ore, using hydrochloric acid as solvent,
Three sections of counterflow leachings are carried out using the present apparatus, the iron in green ore in titanium are obtained, the concentration of the hydrochloric acid is 15%, and solid-to-liquid ratio is
10:1, every Leach reaction time is 2h, leachings total duration be in 6h, titanium green ore to enter first section by feeding warehouse 101 inverse
Flow in spiral organ, the soda acid liquid storage that hydrochloric acid is entered at the countercurrent screw device top position of end by stock solution pipe 106
In tank, electrical heating coil pipe 12 is provided with soda acid fluid reservoir, temperature is increased to 85 DEG C by electrical heating coil pipe 12, made in titanium
Green ore is reacted with concentration for 20% hydrochloric acid in the countercurrent screw infuser of end, during the reaction solution after obtaining is entered
Between in section countercurrent screw reactor, reacted again with mineral, and material is then discharged to what is be connected with latter end countercurrent screw device
In discharging bin, the reaction solution after being leached by interlude countercurrent screw infuser is entered in first section countercurrent screw infuser, with
Mineral carry out final reaction, and the reaction solution obtained after being reacted in first section countercurrent screw infuser flows into steep liquor product storage
In groove 102, final material residue is then discharged in the discharging bin 10 being connected with end countercurrent screw infuser, green ore in final titanium
The leaching rate of middle iron is 31.62%, and and using in the case of leaching device of the prior art, in same raw ore and
Under solvent, concentration of hydrochloric acid is also 15%, and liquid-solid ratio is 10:1, extraction time is 6h, and extraction temperature is 85 DEG C, in such cases,
The leaching rate of iron is only 12.09% in green ore in titanium, it can be seen that, using the present apparatus, in titanium in green ore iron leaching rate
19.53% is improved, by reaction unit provided by the present invention, the leaching rate of object element in mineral is effectively improved,
Convenience and high-efficiency.
It is above the embodiment of the present invention, from implementation process as can be seen that a kind of mineral leaching that the present invention is provided
Go out separation multi-section tube type counterflow leaching reaction unit, realize mineral with acid or alkali counterflow leaching, extend mineral with acid or
The action time of alkali, continuously leached, in the case where not changing original acid or alkali concn, greatly improved in mineral by multi-section tube type
Object element leaching rate, and the present apparatus to acid or alkali can directly heat, be conducive to control and the heat utilization efficiency of process conditions
Raising, and it can continuously produce, simple to operate, energy-conserving and environment-protective.
Claims (8)
1. a kind of leaching of ores separation multi-section tube type counterflow leaching reaction unit, it is characterised in that inverse including more than three sections
Spiral infuser is flowed, each countercurrent screw infuser is obliquely installed, and passes through discharge pipe (1) phase between adjacent countercurrent screw infuser
Even, the arrival end of the discharge pipe (1) is connected with the preceding paragraph countercurrent screw infuser upper end, the outlet of discharge pipe (1)
End is connected with next section of countercurrent screw infuser, connects each countercurrent screw infuser head and the tail, on the discharge pipe (1)
It is connected with discharging bin (10), first section countercurrent screw infuser and feeding warehouse (101) is connected with by feed pipe (104), and under
End is connected with steep liquor product accumulator tank (102), interlude and latter end countercurrent screw infuser lower end by input duct (201)
Soda acid fluid reservoir (2) is connected with by input duct (201), soda acid fluid reservoir (2) bottom is communicated with drain pipe road
(3), the drain pipe road (3) is connected with the preceding paragraph countercurrent screw infuser, and liquid is connected with the drain pipe road (3)
Pump (4), band ortho acid alkali inlet is connected with latter end countercurrent screw infuser top position by stock solution pipe (106)
(103) soda acid fluid reservoir.
2. a kind of leaching of ores separation multi-section tube type counterflow leaching reaction unit according to claim 1, its feature exists
In the countercurrent screw infuser includes leaching pipe (5), offers and is connected with discharge pipe (1) in described leaching pipe (5) upper end
Logical discharging opening (6), bottom offers the liquid outlet (7) being connected with input duct (201), is set in described leach in pipe (5)
Feed transmission shaft (8) is equipped with, feeding screw (9) is installed on the feed transmission shaft (8), pipe (5) bottom is leached described
Outside is provided with the feeding screw motor (14) that driving feed transmission shaft (8) is rotated.
3. a kind of leaching of ores separation multi-section tube type counterflow leaching reaction unit according to claim 1, its feature exists
In, be provided with outlet valve (11) on the discharge pipe (1) at connection discharging bin (10) two ends, in the input duct (201) and
Liquid feed valve (202) is provided with stock solution pipe (106), inlet valve (105) is provided with the feed pipe (104).
4. a kind of leaching of ores separation multi-section tube type counterflow leaching reaction unit according to claim 1, its feature exists
In being provided with electrical heating coil pipe (12) in the soda acid fluid reservoir (2).
5. a kind of leaching of ores separation multi-section tube type counterflow leaching reaction unit according to claim 2, its feature exists
In being provided with filter membrane (13) at the liquid outlet (7) place.
6. a kind of leaching of ores separation multi-section tube type counterflow leaching reaction unit according to claim 5, its feature exists
In the filter membrane (13) uses acidproof or alkali corrosion resistance material.
7. a kind of leaching of ores separation according to any one claim in claims 1 to 3 with multi-section tube type countercurrently
Leach reaction device, it is characterised in that the discharge pipe (1), feeding screw (9) and spiral shaft (8) use glass
Steel or titanium alloy material.
8. a kind of leaching of ores separation according to any one claim in claims 1 to 3 with multi-section tube type countercurrently
Leach reaction device, it is characterised in that the leaching pipe (5) is double glazing steel or the titanium alloy material with heat-insulation layer.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107572544A (en) * | 2017-10-18 | 2018-01-12 | 赤峰和正美化工有限公司 | Montmorillonite countercurrent purification machine |
| CN107881340A (en) * | 2017-12-14 | 2018-04-06 | 襄阳绿华环保科技股份有限公司 | Two-part calcining circulated in countercurrent leacher and calcining leaching method |
| CN111172389A (en) * | 2020-01-20 | 2020-05-19 | 广西赛可昱新材料科技有限公司 | Method for spirally leaching nickel and cobalt |
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| CN107572544A (en) * | 2017-10-18 | 2018-01-12 | 赤峰和正美化工有限公司 | Montmorillonite countercurrent purification machine |
| CN107572544B (en) * | 2017-10-18 | 2023-08-01 | 内蒙古和正美生物科技有限公司 | Montmorillonite countercurrent purifier |
| CN107881340A (en) * | 2017-12-14 | 2018-04-06 | 襄阳绿华环保科技股份有限公司 | Two-part calcining circulated in countercurrent leacher and calcining leaching method |
| CN111172389A (en) * | 2020-01-20 | 2020-05-19 | 广西赛可昱新材料科技有限公司 | Method for spirally leaching nickel and cobalt |
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