CN109082526A - The method of silicon is removed in a kind of nickel cobalt manganese lithium solution - Google Patents
The method of silicon is removed in a kind of nickel cobalt manganese lithium solution Download PDFInfo
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- CN109082526A CN109082526A CN201810942423.3A CN201810942423A CN109082526A CN 109082526 A CN109082526 A CN 109082526A CN 201810942423 A CN201810942423 A CN 201810942423A CN 109082526 A CN109082526 A CN 109082526A
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- silicon
- solution
- nickel cobalt
- cobalt manganese
- manganese lithium
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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
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
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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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0453—Treatment or purification of solutions, e.g. obtained by leaching
- C22B23/0461—Treatment or purification of solutions, e.g. obtained by leaching by chemical methods
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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
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
- C22B26/10—Obtaining alkali metals
- C22B26/12—Obtaining lithium
-
- 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
- C22B47/00—Obtaining manganese
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- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Inorganic Compounds Of Heavy Metals (AREA)
- Silicon Compounds (AREA)
Abstract
The invention discloses a kind of methods that silicon is removed in nickel cobalt manganese lithium solution, are related to solution impurity removing technology field comprising following steps: Step 1: taking nickel cobalt manganese lithium solution, component A are added, continuously adds component B after mixing evenly；Step 2: alkali is added into step 1 acquired solution, pH value is adjusted to 4.5-5.5, then purified solution can be obtained in filtering；Wherein, mixture of the component A selected from one or both of ferrous sulfate or frerrous chloride in step 1, component B are selected from the mixture of one or both of sodium chlorate or hydrogen peroxide.Method provided by the invention except silicon is especially suitable for removing the element silicon in nickel cobalt manganese lithium solution, it more can thoroughly remove the silicon impurities in solution, effectively removing rate at least can reach 98.7% or more, and the iron tramp content in ferrous sulfate heptahydrate being introduced into is few, in addition the raw material that the present invention uses is relatively inexpensive, cost has been saved, there is extremely wide application prospect.
Description
Technical field
The present invention relates to solution impurity removing technology field, a kind of be related specifically to remove silicon in nickel cobalt manganese lithium solution method.
Background technique
Nickel solution obtained in hydrometallurgy (nickel sulfate, nickel chloride), cobalt liquor (cobaltous sulfate, cobalt chloride), lithium solution (sulphur
Sour lithium, lithium chloride) and manganese solution (manganese sulfate, manganese chloride) in contain silicon impurities, usually using the precipitation method remove silicon.
The Chinese patent of Publication No. CN1026191442A discloses " a kind of method of nickel solution deeply purifying and removing silicon ",
This method are as follows: solution containing nickel is heated to 50-80 DEG C first, it is 4-6 that alkaline matter, which is then added, and adjusts pH, finally using suction filtration
The nickel solution and nickel hydroxide slag of separation or the isolated purification of filters pressing, it is 0.1-1g/L that this method, which is suitable for removing silicone content,
Solution containing nickel, this method tool is there are two disadvantage: firstly, the patent only can be suitably used for removing the nickel that silicone content is 0.1-1g/L it is molten
Liquid except silicon ability is just had a greatly reduced quality, i.e., is not appropriate for processing silicon by the silicon removing method that the patent provides when silicone content is higher
The higher nickel solution of content.
In conclusion silicon removing method in the prior art is difficult to the demand of the solution suitable for different silicone contents, to limit
The application of these methods in the industrial production is made.
Summary of the invention
The technical problem to be solved in the present invention is that provide in a kind of nickel cobalt manganese lithium except silicon method, this method is for locating
The nickel cobalt manganese lithium solution for managing different silicone contents is able to maintain more excellent removal rate.
To solve the above-mentioned problems, using following technical scheme: a kind of method that silicon is removed in nickel cobalt manganese lithium solution, including with
Lower step:
Step 1: taking nickel cobalt manganese lithium solution, component A is added, continuously adds component B after mixing evenly；
Step 2: alkali is added into step 1 acquired solution, pH value is adjusted to 4.5-5.5, then purification can be obtained in filtering
Solution afterwards；
Wherein, mixture of component A described in step 1 selected from one or both of ferrous sulfate or frerrous chloride, described group
The mixture for dividing B to be selected from one or both of sodium chlorate or hydrogen peroxide.
" nickel cobalt manganese lithium solution " mentioned herein is selected from nickel sulfate, cobaltous sulfate, manganese sulfate, lithium sulfate, nickel chloride, chlorine
Change the mixed solution of one or more of cobalt, manganese chloride or lithium chloride.
Preferably, the volume of the solution of nickel cobalt manganese lithium described in step 1 is 1L, and the component A is that 296-306g sulfuric acid is sub-
Iron, the component B are 1.8-2.2g sodium chlorate.
It is highly preferred that the component A is 300g ferrous sulfate, the component B is 2.0g sodium chlorate.
Method in nickel cobalt manganese lithium solution provided in the present invention except silicon can be used for the nickel cobalt that silicone content is 0.03-2.5g/L
Manganese lithium solution, being especially suitable for silicone content is 1.5-2.0g/L
Nickel cobalt manganese lithium solution.
Preferably, the pH value of solution is 5.0 after addition alkali in step 2.
Wherein, the alkali is selected from the mixture of one or both of sodium carbonate or sodium hydroxide.
Compared to the prior art, the invention has the following advantages: the method provided by the invention except silicon is not only not necessarily to
Heating, and the silicon impurities in solution more can also be thoroughly removed, it is molten for the nickel cobalt manganese lithium of 0.03-2.5g/L for silicone content
Liquid is able to maintain excellent except silicon effect, and the rate that effectively removes at least can reach 98.7% or more, and the iron tramp content pole introduced
It is few, in addition, the raw material used is also relatively inexpensive, cost has been saved, there is extremely wide application prospect.
Specific embodiment
Embodiment is given below so that the present invention to be specifically described, it is necessary to which indicated herein is following embodiment
It is used to further illustrate the present invention, should not be understood as limiting the scope of the invention, the ordinary skill in the field
Personnel still fall within protection scope of the present invention to some nonessential improvement of the invention made or adjustment according to this embodiment.
Embodiment 1
Sample to be processed: nickel sulfate, cobaltous sulfate, manganese sulfate and lithium sulfate mixed solution, silicone content is in the mixed solution
1.5g/L。
The method of silicon is removed in a kind of nickel cobalt manganese lithium solution, comprising the following steps:
Step 1: taking 1L sample to be processed, it is added 541g ferrous sulfate heptahydrate (content of ferric sulfate is about 296g), stirs evenly
After continuously add 1.8g sodium chlorate；
Step 2: sodium hydroxide is added into step 1 acquired solution, pH value is adjusted to 4.5-5.5, stirs 30min, then
Purified solution can be obtained in filtering.
Using known to flame atomic absorption spectrometry test in purified solution silicon, iron content be respectively 0.019g/L and
0.004g/L, the rate that effectively removes that silicon is calculated is 98.75%.
Embodiment 2
The content of each component and each component is same as Example 1 in sample to be processed in the present embodiment, the difference is that silicon
Content is 2.5g/L.
The method of silicon is removed in a kind of nickel cobalt manganese lithium solution, comprising the following steps:
Step 1: taking 1L sample to be processed, it is added 560g ferrous sulfate heptahydrate (content of ferric sulfate is about 306g), stirs evenly
After continuously add 2.2g sodium chlorate；
Step 2: sodium hydroxide is added into step 1 acquired solution, pH value is adjusted to 4.5-5.5, stirs 30min, then
Purified solution can be obtained in filtering.
It is respectively 0.028g/L using silicon, the iron content known to flame atomic absorption spectrometry test in purified solution
And 0.004g/L, the rate that effectively removes that silicon is calculated is 98.75%.
Embodiment 3
The content of each component and each component is same as Example 1 in sample to be processed in the present embodiment, the difference is that silicon
Content is 2.0g/L.
The method of silicon is removed in a kind of nickel cobalt manganese lithium solution, comprising the following steps:
Step 1: taking 1L nickel cobalt manganese lithium solution, it is added 549g ferrous sulfate heptahydrate (content of ferric sulfate is about 300g), stirring is equal
2.0g sodium chlorate is continuously added after even；
Step 2: sodium hydroxide is added into step 1 acquired solution, pH value is adjusted to 4.5-5.5, stirs 30min, then
Purified solution can be obtained in filtering.
Using known to flame atomic absorption spectrometry test in purified solution silicon, iron content be respectively 0.018g/L and
0.004g/L, it can thus be appreciated that the rate that effectively removes of silicon is 99.1%.
After the completion of sample pretreating, the silicon, iron known in purified solution is tested using flame atomic absorption spectrometry
Content is respectively 0.018g/L and 0.004g/L, and the rate that effectively removes that silicon is calculated is 99.1%.
Embodiment 4
The content of each component and each component is same as Example 1 in sample to be processed in the present embodiment, the difference is that silicon
Content is 1.0g/L.
The method of silicon is removed in a kind of nickel cobalt manganese lithium solution, comprising the following steps:
Step 1: taking 1L nickel cobalt manganese lithium solution, it is added 549g ferrous sulfate heptahydrate (content of ferric sulfate is about 300g), stirring is equal
2.0g sodium chlorate is continuously added after even；
Step 2: sodium hydroxide is added into step 1 acquired solution, pH value is adjusted to 4.5-5.5, stirs 30min, then
Purified solution can be obtained in filtering.
After the completion of sample pretreating, the silicon, iron known in purified solution is tested using flame atomic absorption spectrometry
Content is respectively 0.007g/L and 0.004g/L, and the rate that effectively removes that silicon is calculated is 99.3%.
Comparative example 1
It is identical in sample to be processed and embodiment 1 in this comparative example.
A kind of method that silicon is removed in nickel cobalt manganese lithium solution, referring to the Publication No. being previously mentioned in background technique
The Chinese patent of CN1026191442A obtains, specifically includes the following steps: weighing sodium hydroxide 5g, 20mL water is added to be configured to
The sodium hydroxide solution of 250g/L takes sample to be processed to be placed in container, is heated to 50 DEG C, and alkaline matter is added, and stirs equal
It is even, until solution ph is maintained at 4, after solution ph is stablized, continue stirring 2 hours, decompression filters, molten after being purified
Liquid.
After the completion of sample pretreating, use known to flame atomic absorption spectrometry test in purified solution silicone content for
0.26g/L, the rate that effectively removes that silicon is calculated is only 87%.
By embodiment 1-4 it is found that method provided by the invention can reach the nickel cobalt manganese lithium solution of different silicone contents
Excellent removes silicon effect, and the rate of effectively removing can reach 98.75% or more.Although and can fit except the method for silicon in comparative example 1
For silicone content be 0.1-1g/L nickel cobalt manganese lithium solution, once but the content of silicon is improved to after more than 1g/L in solution,
Using this method except silicon effect will deteriorate, there are a large amount of silicon impurities residuals in the solution obtained after purification, it is difficult to be used
In next process.
Claims (7)
1. removing the method for silicon in a kind of nickel cobalt manganese lithium solution, which comprises the following steps:
Step 1: taking nickel cobalt manganese lithium solution, component A is added, continuously adds component B after mixing evenly；
Step 2: alkali is added into step 1 acquired solution, pH value is adjusted to 4.5-5.5, then purification can be obtained in filtering
Solution afterwards；
Wherein, mixture of component A described in step 1 selected from one or both of ferrous sulfate or frerrous chloride, described group
The mixture for dividing B to be selected from one or both of sodium chlorate or hydrogen peroxide.
2. removing the method for silicon in nickel cobalt manganese lithium solution according to claim 1, which is characterized in that
The volume of the solution of nickel cobalt manganese lithium described in step 1 is 1L, and the component A is 296-306g ferrous sulfate, the component B
For 1.8-2.2g sodium chlorate.
3. removing the method for silicon in nickel cobalt manganese lithium solution according to claim 2, which is characterized in that the component A is 300g
Ferrous sulfate, the component B are 2.0g sodium chlorate.
4. removing the method for silicon in nickel cobalt manganese lithium solution according to claim 1, which is characterized in that the nickel cobalt manganese lithium solution
The content of middle silicon is 0.03-2.5g/L.
5. removing the method for silicon in nickel cobalt manganese lithium solution according to claim 4, which is characterized in that the nickel cobalt manganese lithium solution
The content of middle silicon is 1.5-2.0g/L.
6. removing the method for silicon in nickel cobalt manganese lithium solution according to claim 1, which is characterized in that
The pH value of solution is 5.0 after addition alkali in step 2.
7. removing the method for silicon in nickel cobalt manganese lithium solution according to claim 6, which is characterized in that the alkali is selected from sodium carbonate
Or the mixture of one or both of sodium hydroxide.
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| CN201810942423.3A CN109082526A (en) | 2018-08-17 | 2018-08-17 | The method of silicon is removed in a kind of nickel cobalt manganese lithium solution |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200328A (en) * | 2007-11-01 | 2008-06-18 | 华侨大学 | Process for treating electroplating mixed wastewater by air oxidation method |
| CN102765831A (en) * | 2012-07-25 | 2012-11-07 | 中南大学 | Purification method of wastewater containing heavy metal and arsenic |
| CN104925987A (en) * | 2015-05-13 | 2015-09-23 | 中山大学 | Treatment method for complex metal wastewater |
| CN104988311A (en) * | 2015-04-23 | 2015-10-21 | 金川集团股份有限公司 | Method for improving filtration rate of high-silicon-cobalt raw material dissolving solution |
| CN105803483A (en) * | 2016-04-06 | 2016-07-27 | 王贺 | Preparation method for electro-deposited nickel and cobalt |
| CN106191442A (en) * | 2016-08-23 | 2016-12-07 | 金川集团股份有限公司 | A kind of method of nickel solution deeply purifying and removing silicon |
-
2018
- 2018-08-17 CN CN201810942423.3A patent/CN109082526A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200328A (en) * | 2007-11-01 | 2008-06-18 | 华侨大学 | Process for treating electroplating mixed wastewater by air oxidation method |
| CN102765831A (en) * | 2012-07-25 | 2012-11-07 | 中南大学 | Purification method of wastewater containing heavy metal and arsenic |
| CN104988311A (en) * | 2015-04-23 | 2015-10-21 | 金川集团股份有限公司 | Method for improving filtration rate of high-silicon-cobalt raw material dissolving solution |
| CN104925987A (en) * | 2015-05-13 | 2015-09-23 | 中山大学 | Treatment method for complex metal wastewater |
| CN105803483A (en) * | 2016-04-06 | 2016-07-27 | 王贺 | Preparation method for electro-deposited nickel and cobalt |
| CN106191442A (en) * | 2016-08-23 | 2016-12-07 | 金川集团股份有限公司 | A kind of method of nickel solution deeply purifying and removing silicon |
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Application publication date: 20181225 |