CN108950243A - A kind of processing method of red soil nickel ore leaching liquid spent acid - Google Patents
A kind of processing method of red soil nickel ore leaching liquid spent acid Download PDFInfo
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- CN108950243A CN108950243A CN201810492030.7A CN201810492030A CN108950243A CN 108950243 A CN108950243 A CN 108950243A CN 201810492030 A CN201810492030 A CN 201810492030A CN 108950243 A CN108950243 A CN 108950243A
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- China
- Prior art keywords
- spent acid
- nickel ore
- red soil
- magnesia
- processing method
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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
- C22B23/0407—Leaching processes
- C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of processing methods of red soil nickel ore leaching liquid spent acid, comprising the following steps: lateritic nickel ore acidleach obtains leachate；It is added in magnesia ore pulp or magnesia miberal powder and deacidifies in the leachate, the mixed liquor after being reacted；Mixed liquor after the reaction is subjected to filters pressing, realizes the separation of filter residue filtrate；The filter residue is returned again to extracting stage to leach again.The present invention replaces other antalkalis with the raw ore for being easy to react of the certain partial size in part in lateritic nickel ore, reasonably control deacidification time and temperature, additional alkaline consumption is not increased, new impurity is not introduced or generates new solid waste yet, improve the concentration of metal ions of liquid and the impurity and purification conducive to subsequent workshop section after neutralizing, reasonable utilization spent acid, substantially increases the economy of production run.
Description
Technical field
The present invention relates to laterites in a kind of hydrometallurgy to cure leaching treatment technique, more particularly it relates to one
The method that spent acid processing in leachate is leached in kind laterite curing.
Background technique
In the hydrometallurgy of lateritic nickel ore, acidleach is carried out to raw ore, either pressurization or normal pressure, in order to improve nickel cobalt
The leaching rate of equal valuable metals, it will usually increase the proportion usage amount of acid, this allows for leachate and contains considerable amount of spent acid.For
The progress of subsequent impurity and purification process, this part spent acid in leachate have to remove.Prior art is usually direct
Certain antalkalis are added, but there are two disadvantages for this method: first is that increasing alkaline consumption, cost is consequently increased；Second is that introducing new
Foreign ion or generate more solid waste slags.
Summary of the invention
Aiming at the shortcomings of the prior art, the present invention provides a kind of processing side of red soil nickel ore leaching liquid spent acid
Method.The raw ore for being easy to react using specified particle diameter in lateritic nickel ore makees antalkali, neutralizes and contains in lateritic nickel ore pickle liquor
Some spent acid does not increase additional alkaline consumption, does not introduce new impurity yet or generates new solid waste slag, liquid is conducive to subsequent remove after neutralization
The progress of general labourer's sequence, slag can return to leaching process after neutralization.Rational technology, simply, economy are good.The present invention is by following
What technical solution was realized.
A kind of processing method of red soil nickel ore leaching liquid spent acid, which comprises the following steps: a) lateritic nickel ore acid
Leaching obtains leachate；B) it is added in magnesia ore pulp and deacidifies in the leachate, liquid after being neutralized；C) by the neutralization
Liquid carries out filters pressing afterwards, realizes the separation of filter residue filtrate；D) filter residue extracting stage is returned again to leach again.
Further, 25 ~ 100g/l of spent acid concentration in leachate described in step a).
Further, magnesia pulp density 10% ~ 50% described in step b), 50 ~ 300 mesh of partial size.
Further, neutralization reaction time described in step b) be 0.5 ~ 5 hour, 50 ~ 100 DEG C of temperature, liquid after neutralization
5 ~ 20g/l of spent acid concentration.
The present invention replaces other antalkalis with the raw ore for being easy to react of the certain partial size in part in lateritic nickel ore, rationally
Ground control deacidification time and temperature, do not increase additional alkaline consumption, do not introduce new impurity yet or generate new solid waste, improves
With the concentration of metal ions of rear liquid and conducive to the impurity and purification of subsequent workshop section, reasonable utilization spent acid substantially increases production
The economy of operation.
Detailed description of the invention
Fig. 1 is red soil nickel ore leaching liquid spent acid process flow diagram.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The present invention provides a kind of processing method of red soil nickel ore leaching liquid spent acid.Using in lateritic nickel ore specified particle diameter it is easy
Make antalkali in the raw ore of reaction, neutralizes the spent acid contained in lateritic nickel ore pickle liquor, do not increase additional alkaline consumption, also not
It introduces new impurity or generates new solid waste slag, liquid is conducive to the progress of subsequent removal of impurities process after neutralization, and slag can return to leaching after neutralization
Process out.Rational technology, simply, economy are good.The present invention is achieved by the following technical solutions.
A kind of processing method of red soil nickel ore leaching liquid spent acid, which comprises the following steps: a) lateritic nickel ore acid
Leaching obtains leachate；B) it is added in magnesia ore pulp and deacidifies in the leachate, liquid after being neutralized；C) by the neutralization
Liquid carries out filters pressing afterwards, realizes the separation of filter residue filtrate；D) filter residue extracting stage is returned again to leach again.
Further, 25 ~ 100g/l of spent acid concentration in leachate described in step a).
Further, magnesia pulp density 10% ~ 50% described in step b), 50 ~ 300 mesh of partial size.
Further, neutralization reaction time described in step b) be 0.5 ~ 5 hour, 50 ~ 100 DEG C of temperature, liquid after neutralization
5 ~ 20g/l of spent acid concentration.
The magnesia ore pulp is that the magnesia mine by obtaining after being sieved lateritic nickel ore is obtained by ore grinding, slurrying
, magnesia mine is metal oxide ore, wherein being primarily involved in the nickel oxide that has of reaction, magnesia and iron oxide, magnesia mine and sulfuric acid
Reaction equation it is as follows:
MgO + 2H+ = H2O + Mg2+
NiO + 2H+ = H2O + Ni2+
Fe2O3 + 6H+ = 3H2O + 2Fe3+
By mass percentage, principle active component are as follows: nickel oxide 1.0% -2.0%, magnesia 25% -50%, iron oxide 3% -
8%。
The present invention replaces other antalkalis with the raw ore for being easy to react of the certain partial size in part in lateritic nickel ore, rationally
Ground control deacidification time and temperature, do not increase additional alkaline consumption, do not introduce new impurity yet or generate new solid waste, improves
With the concentration of metal ions of rear liquid and conducive to the impurity and purification of subsequent workshop section, reasonable utilization spent acid substantially increases production
The economy of operation.
Embodiment 1
Measuring 1L sulfuric acid content is the red soil nickel ore leaching liquid of 25g/L in beaker, is placed in sealing stirring in 65 DEG C of water-baths and adds
For heat to 60 DEG C, adding concentration is 15%, and partial size is the magnesia ore pulp of 50 purposes, continues sealing stirring 1h, reaction was completed, filters, takes
The analysis of filtrate sample presentation, filtrate sulfuric acid content are 5g/L.
Embodiment 2
Measuring 1L sulfuric acid content is the red soil nickel ore leaching liquid of 60g/L in beaker, is placed in sealing stirring in 85 DEG C of water-baths and adds
For heat to 80 DEG C, adding concentration is 30%, and partial size is the magnesia ore pulp of 150 purposes, continues sealing stirring 2.5h, reaction was completed, takes out
Filter takes filtrate sample presentation to analyze, and filtrate sulfuric acid content is 10g/L；
Embodiment 3
Measuring 1L sulfuric acid content is the red soil nickel ore leaching liquid of 90g/L in beaker, is placed in sealing stirring in 100 DEG C of water-baths and adds
For heat to 95 DEG C, adding concentration is 50%, and partial size is the magnesia ore pulp of 300 purposes, continues sealing stirring 5h, and reaction was completed, is filtered,
Filtrate sample presentation is taken to analyze, filtrate sulfuric acid content is 5g/L；
Embodiment 4
Measuring 1L sulfuric acid content is the red soil nickel ore leaching liquid of 90g/L in beaker, is placed in sealing stirring in 90 DEG C of water-baths and adds
For heat to 85 DEG C, adding concentration is 20%, and partial size is the magnesia ore pulp of 50 purposes, continues sealing stirring 2h, reaction was completed, filters, takes
The analysis of filtrate sample presentation, filtrate sulfuric acid content are 15g/L；
Embodiment 5
Measuring 1L sulfuric acid content is the red soil nickel ore leaching liquid of 45g/L in beaker, is placed in sealing stirring in 90 DEG C of water-baths and adds
For heat to 85 DEG C, adding concentration is 45%, and partial size is the magnesia ore pulp of 200 purposes, continues sealing stirring 0.5h, reaction was completed, takes out
Filter takes filtrate sample presentation to analyze, and filtrate sulfuric acid content is 10g/L；
Above-described is only presently preferred embodiments of the present invention, not limitation invention.It should be understood that for the common skill of this field
For art personnel, under technical inspiration provided by the present invention, other equivalent improvement can also be made, the present invention may be implemented
Purpose, be regarded as protection scope of the present invention.
Claims (4)
1. a kind of processing method of red soil nickel ore leaching liquid spent acid, which comprises the following steps:
A) lateritic nickel ore acidleach obtains leachate；
B) it is added in magnesia ore pulp and deacidifies in the leachate, liquid after being neutralized；
C) liquid after the neutralization is subjected to filters pressing, realizes the separation of filter residue filtrate；
D) filter residue extracting stage is returned again to leach again.
2. a kind of processing method of red soil nickel ore leaching liquid spent acid according to claim 1, which is characterized in that step a) institute
25 ~ 100g/l of spent acid concentration in the leachate stated.
3. a kind of processing method of red soil nickel ore leaching liquid spent acid according to claim 1, which is characterized in that step b) institute
The magnesia pulp density 10% ~ 50% stated, 50 ~ 300 mesh of partial size.
4. a kind of processing method of red soil nickel ore leaching liquid spent acid according to claim 1, which is characterized in that in step b)
The neutralization reaction time be 0.5 ~ 5 hour, 50 ~ 100 DEG C of temperature, 5 ~ 20g/l of liquid spent acid concentration after neutralization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810492030.7A CN108950243A (en) | 2018-05-22 | 2018-05-22 | A kind of processing method of red soil nickel ore leaching liquid spent acid |
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|---|---|---|---|
| CN201810492030.7A CN108950243A (en) | 2018-05-22 | 2018-05-22 | A kind of processing method of red soil nickel ore leaching liquid spent acid |
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| CN108950243A true CN108950243A (en) | 2018-12-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111172392A (en) * | 2020-01-20 | 2020-05-19 | 广西赛可昱新材料科技有限公司 | Environment-friendly iron removal method without impurity in laterite-nickel ore leaching solution |
| CN112301232A (en) * | 2019-07-26 | 2021-02-02 | 宁波力勤矿业有限公司 | Treatment method of laterite-nickel ore high-pressure acid leaching liquid and laterite-nickel ore high-pressure acid leaching treatment process |
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| CN102212684A (en) * | 2011-06-08 | 2011-10-12 | 广西银亿科技矿冶有限公司 | Method for wet-leaching lateritic-nickel ore at transition layer |
| CN102286661A (en) * | 2011-08-25 | 2011-12-21 | 云南锡业集团（控股）有限责任公司 | Method for direct electrolysis of laterite nickel ore by sulfuric acid leaching |
| CN102534206A (en) * | 2012-02-23 | 2012-07-04 | 北京矿冶研究总院 | Leaching method of limonite type laterite-nickel ore |
| CN102816927A (en) * | 2012-09-01 | 2012-12-12 | 昆明理工大学 | Method for efficiently removing ferrum in red soil nickel mineral leaching liquid |
| CN203530398U (en) * | 2013-10-09 | 2014-04-09 | 北京矿冶研究总院 | Laterite-nickel ore jointly leaches system |
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2018
- 2018-05-22 CN CN201810492030.7A patent/CN108950243A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102212684A (en) * | 2011-06-08 | 2011-10-12 | 广西银亿科技矿冶有限公司 | Method for wet-leaching lateritic-nickel ore at transition layer |
| CN102286661A (en) * | 2011-08-25 | 2011-12-21 | 云南锡业集团（控股）有限责任公司 | Method for direct electrolysis of laterite nickel ore by sulfuric acid leaching |
| CN102534206A (en) * | 2012-02-23 | 2012-07-04 | 北京矿冶研究总院 | Leaching method of limonite type laterite-nickel ore |
| CN102816927A (en) * | 2012-09-01 | 2012-12-12 | 昆明理工大学 | Method for efficiently removing ferrum in red soil nickel mineral leaching liquid |
| CN203530398U (en) * | 2013-10-09 | 2014-04-09 | 北京矿冶研究总院 | Laterite-nickel ore jointly leaches system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112301232A (en) * | 2019-07-26 | 2021-02-02 | 宁波力勤矿业有限公司 | Treatment method of laterite-nickel ore high-pressure acid leaching liquid and laterite-nickel ore high-pressure acid leaching treatment process |
| CN111172392A (en) * | 2020-01-20 | 2020-05-19 | 广西赛可昱新材料科技有限公司 | Environment-friendly iron removal method without impurity in laterite-nickel ore leaching solution |
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Application publication date: 20181207 |