CN209024321U - A kind of comprehensive resource processing unit for the raffinate that cobalt nickel leaching process generates - Google Patents
A kind of comprehensive resource processing unit for the raffinate that cobalt nickel leaching process generates Download PDFInfo
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- CN209024321U CN209024321U CN201821619810.5U CN201821619810U CN209024321U CN 209024321 U CN209024321 U CN 209024321U CN 201821619810 U CN201821619810 U CN 201821619810U CN 209024321 U CN209024321 U CN 209024321U
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- raffinate
- reaction kettle
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- cobalt nickel
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Abstract
The utility model creates the comprehensive resource processing unit for disclosing a kind of raffinate that cobalt nickel leaching process generates, raffinate collecting pit is connected to oil separator, oil separator greasy dirt end is connected to material storage container to return to extraction plant reuse, oil separator raffinate end is connected to ion exchange resin, the cobalt nickel end that ion exchange resin intercepts is connected to material storage container, raffinate end is connected to first group of reaction kettle, it is furnished with dosing pond in first group of reaction kettle upper end, the outlet end of first group of reaction kettle is connected to one section of filter press, filter residue end is connected to material storage container, filtrate end is connected to second group of reaction kettle, it is furnished with dosing pond in second group of reaction kettle upper end, outlet end is connected to two sections of filter presses, filter residue end is connected to material storage container, filtrate end enters pH conditioning tank and adjusts pH rear discharge up to standard, it is furnished with dosing pond on pH conditioning tank.The utility model creates the cobalt nickel that can effectively recycle in raffinate, and can go demagging, reduces the salinity in discharge water, and do not use vulcanized sodium, will not generate pernicious gas.
Description
Technical field
The present invention relates to the comprehensive resource processing unit of waste water, in particular to a kind of raffinate of cobalt nickel leaching process generation
The comprehensive resource processing unit of liquid.
Background technique
When cobalt nickel fibers, extraction process ammonia can generate raffinate when being saponified, mainly containing a small amount of in the raffinate waste water
Ni2+, CO2+, SO4 2-And less Mg2+.Earliest treatment process is liquid feeding alkali flocculation sedimentation, handles waste water, recycles Co, Ni
While also recycled Mg, reclaimed materials returns to production, and used time, a small amount of Mg are constantly enriched with again, finally will affect extraction efficiency, shadow
Ring production.Later, waste water treatment process improved, and precipitated waste water using vulcanized sodium, the valuable metals such as recycling Co, Ni open a way Mg
Fall, it is truly feasible compared to earliest method, but this method draining deviation is yellow, does not meet environmental requirement, and precipitation process has hydrogen sulfide
Smell pollutes environment, bad control.After continue to improve, using oxidation-precipitation method recycle Co, Ni, overcome sodium sulfide method lack
Point, but the hydroxy nickel oxide (containing a small amount of hydroxy cobalt oxide) recycled can only be back to leaching process as raw material.In order to reduce
Production cost, we increase resin recycling heavy metal technique, the nickel sulfate (containing a small amount of cobaltous sulfate) of recycling before the oxidation again
It can be used as crude product directly into extraction process (downstream process of leaching), reduce production cost, but this method will lead into oxidation
Ni and Co content is greatly reduced in the waste water of precipitating, and in oxidation precipitation, the content accounting for producing Mg in slag can increase, after being unfavorable for
The reuse of sequence slag.
Utility model content
In waste water in order to solve oxidation precipitation caused by increasing resin recycling heavy metal device before oxidation precipitation Ni and
Co content is greatly reduced, when oxidation precipitation, the problem of producing the content accounting of Mg in slag can increase, be unfavorable for postorder slag reuse, this
Innovation and creation provide a kind of comprehensive resource processing unit of raffinate that cobalt nickel leaching process generates, and develop fractional precipitation
Method is precipitated using two sections, and before the oxidation, recycling Co, a Ni promote the rate of recovery of Co, Ni to greatest extent, while can
To separate Mg, outer bed drain purge is reduced.
A kind of comprehensive resource processing unit for the raffinate that cobalt nickel leaching process generates, raffinate collecting pit are connected to oil removal
Pond, oil separator greasy dirt end are connected to material storage container to return to extraction plant reuse, and oil separator raffinate end is connected to ion exchange resin, from
The cobalt nickel end that sub-exchange resin intercepts is connected to material storage container, and raffinate end is connected to first group of reaction kettle, and first group of reaction kettle upper end is matched
There are blender, dosing pond, pH detector, the outlet end of first group of reaction kettle is connected to one section of filter press, and filter residue end is connected to material storage container,
Filtrate end is connected to second group of reaction kettle, and second group of reaction kettle upper end is furnished with blender, dosing pond, pH detector, outlet end connection
Two sections of filter presses, filter residue end are connected to material storage container, and filtrate end enters pH conditioning tank and adjusts pH rear discharge up to standard, and pH conditioning tank upper end is matched
There are blender, dosing pond, pH detector.
The comprehensive resource processing unit for the raffinate that a kind of above-mentioned cobalt nickel leaching process generates, the dosing pond and the
Liquid flux quantitative is equipped between one reaction kettle, between dosing pond and the second reaction kettle, between dosing pond and pH conditioning tank
Control system, liquid flux quantitative control system include quantitative control cabinet, flowmeter and solenoid valve, can according to the pH value of setting,
Solenoid valve is controlled, dosage is automatically adjusted, pH is kept to stablize.
The comprehensive resource processing unit for the raffinate that a kind of above-mentioned cobalt nickel leaching process generates, the dosing pond and stream
Suction pump is equipped between meter.
The beneficial effect of the invention is: the raffinate that the invention generates when can be by cobalt nickel fibers carries out comprehensive money
Sourceization processing, does not cause environmental pressure not only, and can resource utilization, reduce the operation of entire cobalt nickel fibers industry
Cost.The invention can not only recycle the cobalt nickel in raffinate, can return to production reuse, moreover it is possible to solve in production always
The problem of existing magnesium can not be handled, magnesium is separately separated out, avoids the high salt in the enrichment and outer draining of magnesium, simultaneously
Hydrogen sulfide gas will not be generated without using vulcanized sodium, it is environmentally friendly, meet national requirements for environmental protection.
Detailed description of the invention
The invention is described further in the following with reference to the drawings and specific embodiments.
Fig. 1 is the device flow chart of the invention.
Specific embodiment
[embodiment 1]
A kind of comprehensive resource processing unit for the raffinate that cobalt nickel leaching process generates, comprising: raffinate collecting pit connects
Logical oil separator, oil separator greasy dirt end are connected to material storage container to return to extraction plant reuse, and oil separator raffinate end is connected to ion exchange
Resin, the cobalt nickel end that ion exchange resin intercepts are connected to material storage container, and raffinate end is connected to first group of reaction kettle, first group of reaction kettle
Upper end is furnished with blender, dosing pond, pH detector, and the outlet end of first group of reaction kettle is connected to one section of filter press, the connection of filter residue end
Material storage container, filtrate end are connected to second group of reaction kettle, and second group of reaction kettle upper end is furnished with blender, dosing pond, pH detector, out liquid
Two sections of filter presses of end connection, filter residue end are connected to material storage container, and filtrate end enters pH conditioning tank and adjusts pH rear discharge up to standard, pH conditioning tank
It is furnished with blender, dosing pond, pH detector in upper end.
Between the dosing pond and the first reaction kettle, between dosing pond and the second reaction kettle, dosing pond and pH conditioning tank it
Between be equipped with liquid flux quantitative control system, liquid flux quantitative control system includes quantitative control cabinet, flowmeter and electricity
Magnet valve can control solenoid valve according to the pH value of setting, automatically adjust dosage, pH be kept to stablize.If dosing pond position compared with
It is low, it may also include suction pump, if dosing pond position is higher, suction pump can not had to.Flow is calculated as turbine flowmeter.The liquid
Flow quantitative control system can be freely set liquid liquid outlet quantity, significantly improving production efficiency.
The purpose of the present apparatus is to remove wherein oil, Ni, Co, and the Mg that opens a way.
Raffinate is introduced into oil separator, carries out water-oil separating, and the oil isolated returns to extraction plant and return as extractant
With.Raffinate Jing Guo oil separator is adsorbed into Co by ion exchange resin2+And Ni2+, after being saturated, by pickling by Co2+
And Ni2+It is taken off from resin, generates CoSO4And NiSO4Solution is recycled back to extraction plant.Ion exchange will be passed through
The raffinate of resin is pumped into first group of reaction kettle, and liquid alkaline is added, and pH is adjusted to 7-8, is generated Ni (OH)2With Co (OH)2Precipitating is led to
One section of filter press is crossed, is separated by solid-liquid separation, the Ni (OH) of generation2With Co (OH)2Slag returns to leaching workshop and recycles as raw material,
Mg is not precipitated substantially under this pH, and content of magnesium is very low in one section of filter-press residues, and only 0.2% or so, cobalt, nickel is substantially when one section of filters pressing
It has all precipitated, to when two sections of filters pressings, being essence except cobalt, nickel, that is, has removed the Microamounts of Cobalt And Nickel not precipitated completely when one section of filters pressing, protect
Barrier draining content of beary metal is up to standard.It will be pumped into second group of reaction kettle by the filtrate of one section of filter press, by adding mixed solution,
Wherein the optimal proportion of liquor natrii hypochloritis's (concentration 10%) and liquid alkaline (32%) is 2:1, adjusts pH to 9-9.5, will be remaining
Co and Ni is oxidized to Co (OH)3With Ni (OH)3Precipitating, is separated by solid-liquid separation by two sections of filter presses, is generated Co (OH)3、Ni
(OH)3With Mg (OH)2Slag, due to Co (OH)3、 Ni(OH)3Slag is less to have no effect on magnesium slag amount, therefore can be used as magnesium slag committee
Outer processing.Filtrate after two sections of filter presses is adjusted back into pH to 6-9, it can qualified discharge.
In raw water raffinate, the concentration of Ni is in 500-2000mg/L, and for the concentration of Co between 200-500mg/L, Mg's is dense
Degree is in 1000-5000mg/L, and pH is in 2-5, and oil is between 50-200mg/L.Raffinate after ion exchange resin, Ni
Concentration is 300-500mg/L, and Co concentration is between 100-200mg/L, and pH is in 2-5, and the concentration of Mg is in 1000-5000mg/L, oil
Divide in 50mg/L or so.After one section of filters pressing, the ratio of Ni is greater than 5% (moisture participates in calculating) in slag, and the ratio of magnesium is less than
0.5%, the concentration of Ni is in 100-200mg/L in filtrate, and the concentration of Co is in 50mg/L or less.After two sections of filters pressings, in slag
The ratio of Ni is less than 1%, and the ratio of magnesium is greater than 4%, and the concentration of Ni, Co are in 1mg/L or less in filtrate.1000 sides' of every processing
Water about generates 14 tons of filter-press residues (filter-press residues can be with fully recovering), 5 tons of secondary filter-press residues, and alkali precipitation is only used in comparison
Method, it is possible to reduce 70% quantity of slag.Cobalt nickel first passes around ion exchange resin, is swapped out a part of cobalt nickel and is sent directly into extraction vehicle
Between reuse, then by first group of reaction kettle alkali it is heavy after enter one section of filter press filters pressing and remove most of cobalt nickel, at this time in raffinate
Content of magnesium almost do not become, but due to the reduction of cobalt nickel, the accounting of magnesium is increased, then in second group of reaction kettle cobalt nickel by oxygen
It is deposited again after change, this stage magnesium of the overwhelming majority is also precipitated, and is then press-filtered out through two sections of filter presses containing micro
The magnesium slag of cobalt nickel, the outer processing of this magnesium slag committee.
Description of equipment: parallel flow intercepter, Tube separators etc. can be used in oil separator.Reaction kettle is cylinder PPH material
Matter, top are equipped with stirring motor.Ion exchange resin is spherical tank, and 2 meters of diameter, inside is filled with ion exchange resin,
Ion exchange resin is that cobalt nickel adsorbs resin dedicated, model BY210.
The invention can recycle cobalt nickel most in raffinate, while can be magnesium most in raffinate
It is precipitated out, the waste residue of output is made to reduce 70%, make to be discharged in water that cobalt, nickel, the content of magnesium are up to standard, avoid the enrichment of magnesium, simultaneously
Without using vulcanized sodium, hydrogen sulfide gas is not generated, it is environmental-friendly.
Claims (3)
1. a kind of comprehensive resource processing unit for the raffinate that cobalt nickel leaching process generates, which is characterized in that raffinate is collected
Pond is connected to oil separator, and oil separator greasy dirt end is connected to material storage container to return to extraction plant reuse, and oil separator raffinate end is connected to ion
Exchanger resin, the cobalt nickel end that ion exchange resin intercepts are connected to material storage container, and raffinate end is connected to first group of reaction kettle, and first group anti-
Answer kettle upper end equipped with blender, dosing pond, pH detector, the outlet end of first group of reaction kettle is connected to one section of filter press, filter residue end
It is connected to material storage container, filtrate end is connected to second group of reaction kettle, and second group of reaction kettle upper end is furnished with blender, dosing pond, pH detector,
Outlet end is connected to two sections of filter presses, and filter residue end is connected to material storage container, and filtrate end enters pH conditioning tank and adjusts pH rear discharge up to standard, pH tune
It saves pond upper end and is furnished with blender, dosing pond, pH detector.
2. the comprehensive resource processing unit for the raffinate that a kind of cobalt nickel leaching process according to claim 1 generates,
Be characterized in that, between the dosing pond and the first reaction kettle, between dosing pond and the second reaction kettle, dosing pond and pH conditioning tank it
Between be equipped with liquid flux quantitative control system, liquid flux quantitative control system includes quantitative control cabinet, flowmeter and electricity
Magnet valve can control solenoid valve according to the pH value of setting, automatically adjust dosage, pH be kept to stablize.
3. the comprehensive resource processing unit for the raffinate that a kind of cobalt nickel leaching process according to claim 2 generates,
It is characterized in that, suction pump is equipped between the dosing pond and flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821619810.5U CN209024321U (en) | 2018-09-30 | 2018-09-30 | A kind of comprehensive resource processing unit for the raffinate that cobalt nickel leaching process generates |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821619810.5U CN209024321U (en) | 2018-09-30 | 2018-09-30 | A kind of comprehensive resource processing unit for the raffinate that cobalt nickel leaching process generates |
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| CN209024321U true CN209024321U (en) | 2019-06-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109081475A (en) * | 2018-09-30 | 2018-12-25 | 荆门市格林美新材料有限公司 | A kind of comprehensive resource processing unit for the raffinate that cobalt nickel leaching process generates |
| CN115505753A (en) * | 2022-08-25 | 2022-12-23 | 格林美（江苏）钴业股份有限公司 | Method for removing nickel in cobalt raffinate in cobalt hydrometallurgy process in sections |
-
2018
- 2018-09-30 CN CN201821619810.5U patent/CN209024321U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109081475A (en) * | 2018-09-30 | 2018-12-25 | 荆门市格林美新材料有限公司 | A kind of comprehensive resource processing unit for the raffinate that cobalt nickel leaching process generates |
| CN115505753A (en) * | 2022-08-25 | 2022-12-23 | 格林美（江苏）钴业股份有限公司 | Method for removing nickel in cobalt raffinate in cobalt hydrometallurgy process in sections |
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