CN101270417B - Method for extracting nickel and/or cobalt - Google Patents
Method for extracting nickel and/or cobalt Download PDFInfo
- Publication number
- CN101270417B CN101270417B CN 200810094423 CN200810094423A CN101270417B CN 101270417 B CN101270417 B CN 101270417B CN 200810094423 CN200810094423 CN 200810094423 CN 200810094423 A CN200810094423 A CN 200810094423A CN 101270417 B CN101270417 B CN 101270417B
- Authority
- CN
- China
- Prior art keywords
- ore
- leaching
- nickel
- leach liquor
- ore deposit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
-
- 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
- C22B23/005—Preliminary treatment of ores, e.g. by roasting or by the Krupp-Renn process
-
- 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
-
- 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
- C22B23/043—Sulfurated acids or salts thereof
Abstract
An extraction method of Nickel and/or Cobalt comprises a heap leaching technology and a technology of atmospheric heating, mixing and leaching, which is characterized in that limonite type ore is leached by using the atmospheric heating and mixing, and serpentine type ore is leached by heap leaching technology. According to the invention, different leaching technology are adopted for the serpentine type ore and the limonite type ore in laterite-nickel ore, the serpentine type ore is leached by using the heap leaching technology to obtain the faster leaching speed, and the limonite type ore is leached by using the atmospheric heating and mixing technology for avoiding the problem of the extreme low leaching speed and the long leaching period.
Description
Technical field
The present invention relates to a kind of method of extracting nickel and/or cobalt, particularly relate to a kind of method of from red soil nickel ore, extracting nickel and/or cobalt, especially by dividing extracting, gathering and processing to extract the method for nickel, cobalt or nickel and cobalt on limonite type and serpentine type red soil nickel ore.Belong to the hydrometallurgy field.
Background technology
According to prior art, the method for extracting nickel, cobalt or nickel and cobalt from red soil nickel ore comprises the heap leaching method of red soil nickel ore and the normal pressure stirring leaching technology of heating.
Yet, in existing heap leaching method, serpentine type ore and limonite type ore all mixed carry out dump leaching, the result, seepage velocity is slow, the leaching cycle is long.
In addition, in existing normal pressure is heated the stirring leaching technology, the limonite type ore that the serpentine type ore that this available heap leaching method also can be obtained the shorter leaching cycle also can't obtain the shorter leaching cycle with the heap leaching method agitation leach of heating that mixes, thereby cause treatment capacity too big, use equipment is many, the energy consumption height.
Summary of the invention
For overcoming the deficiencies in the prior art, the purpose of this invention is to provide a kind of method of extracting nickel and/or cobalt, its leaching speed is fast, leaching cycle short, technical process is short.
Another object of the present invention provides a kind of method of extracting nickel and/or cobalt, and its equipment that adopts is simple, quantity is few, investment is little.
Another object of the present invention provides a kind of method of extracting nickel and/or cobalt, and its energy consumption is low, and cost benefit is good.
Another object of the present invention provides a kind of method of extracting nickel and/or cobalt, its nickel leaching yield height.
For this reason, the invention provides a kind of method of extracting nickel and/or cobalt, comprise heap leaching method and the normal pressure stirring leaching technology of heating, it is characterized in that, limonite type ore adopts normal pressure to stir leaching; And serpentine type ore adopts the leaching of dump leaching method.
Preferably, from red soil nickel ore, extract nickel and cobalt and nickel or cobalt.
Preferably, the normal pressure of limonite type ore stirring leaching technology comprises following process steps:
The control ore grain size is less than 1cm;
By ore/soak ore deposit agent (W/V) be added in 1.0: 1.5～1.0: 2.5 concentration be 20～30% soak the ore deposit agent, be 70～100 ℃ in temperature and stir leaching 48～4h down; And
To leach slurry filtration, and wash filter residue with water, the gained leach liquor is used to produce nickel cobalt product.
Preferably, the dump leaching method leaching technology of serpentine type ore comprises following process steps:
The control ore grain size is less than 3cm, control ore moisture content greater than; Seam thickness is 1～6m;
Add concentration and be 5～15% soak the ore deposit agent, allow its nature flow into the bottom from top and carry out maceration; And
The leach liquor of collecting is allocated, made the leach liquor nickel ion concentration reach 1.5～5g/L, be used to produce nickel cobalt product, nickel ion concentration returns less than the leach liquor of 1.2g/L and soaks the ore deposit.
Preferably, in step e, from soak the ore pillar top add concentration be 5～15% soak the ore deposit agent, allow its nature flow into the bottom from the top and carry out maceration.
Preferably, soaking the ore deposit agent is sulfur acid, hydrochloric acid or their mixing aqueous acid.
Preferably, use the leach liquor that is obtained to produce nickel cobalt product.
Preferably, by ore being carried out fragmentation control ore grain size.
Preferably, granularity is carried out fragmentation greater than the ore of 1cm, the control ore grain size is less than 1cm; By ore/soak ore deposit agent (W/V) is to add 20% sulphuric acid soln at 1.0: 2.3, stirs leaching 24h down at 80 ℃; To leach slurry filtration, be 3 to add the water washing filter residue by liquid-solid ratio, and leach liquor is used to produce nickel cobalt product.
Preferably, particle diameter is carried out fragmentation greater than the ore of 3cm, control ore particle diameter is less than 3cm, ore moisture content 25%; Seam thickness 5m; By soaking the ore deposit agent concentration is 10% preparation aqueous sulfuric acid, and the ore bed top adds soaks the ore deposit agent, allows its natural maceration; Fractional Collections leach liquor, nickel cobalt peak liquid concentrate on and soak ore deposit early stage, and leach liquor is allocated, and make the leach liquor nickel ion concentration reach 2g/L, are used to produce nickel cobalt product, and nickel ion concentration is used to return less than the leach liquor of 1.2g/L and soaks the ore deposit.
According to the present invention, serpentine type ore branch in the red soil nickel ore is adopted branch to be soaked, obtaining short leaching cycle and high leaching yield, and remaining limonite type ore is adopted the normal pressure agitation leach of heating, make and existingly leach speed faster, reduced the treatment capacity of half approximately again.
According to the present invention, serpentine type ore in the red soil nickel ore is taked different extract technologies respectively with limonite type ore, serpentine type ore is taked heap leaching method, to obtain the speed of leaching faster, limonite type ore adopts the normal pressure stirring technique of heating to leach, and has avoided that dump leaching speed is extremely slow, long problem of leaching cycle.
Because the leaching performance of serpentine type ore is better than limonite type ore, will above-mentioned two kinds of ores mix dump leaching or stir for the technology of leaching with respect to existing, the present invention will be leached with the dump leaching method than the serpentine type ore that is fit to dump leaching, not only cycle weak point, and leaching rate height.And the limonite type ore that is difficult to leach leaches with heating and stirring method, and the speed of not only leaching is fast, and leaching rate is also high.Thereby such combination process all has better technique effect than single heap leaching method or the single stirring leaching technology of heating.
To brief description of drawings
Fig. 1 is a normal pressure stirring leaching technology schema of being produced nickel cobalt product by limonite type ore.
Fig. 2 soaks (simulation dump leaching) process flow sheet by the post that serpentine type ore is produced nickel cobalt product.
Preferred forms
The inventor finds that in heap leaching method, serpentine type ore has the short leaching cycle; And limonite type ore has the long leaching cycle.
As shown in Figure 1, the normal pressure stirring leaching technology flow process of being produced nickel cobalt product by limonite type ore comprises the following steps: that ore preparation process 11, normal pressure stir leaching step 12 and solid/liquid separation step 13, wherein, the enforcement of step 12 comprises the step 111 that applies of mineral acid, and the result of solid/liquid separation step 13 produces leach liquor 14 and the leached mud 15 of producing nickel cobalt product.
Stir among the embodiment of leaching technology at the normal pressure of producing nickel cobalt product by limonite type ore, specifically comprise the following steps:
A, granularity is carried out fragmentation greater than the ore of 1cm, the control ore grain size is less than 1cm;
B, be to add 20% sulphuric acid soln at 1.0: 2.3, stir leaching 24h down at 80 ℃ by ore/soak ore deposit agent (W/V);
C, will leach slurry filtration, be 3 to add the water washing filter residue by liquid-solid ratio, and leach liquor is used to produce nickel cobalt product.
In the present embodiment, the nickel leaching yield is 82.37%; And available prior art is handled the leach liquor of nickel and cobalt containing, gets nickel cobalt product.
In other embodiment, ore/soak ore deposit agent (W/V) can be 1.0: 1.5～1.0: 2.5, and the concentration of soaking the ore deposit agent can be 20～30%, and whipping temp can be 70～100 ℃, and leaching time can be 48～4h, can realize purpose of the present invention equally.
As shown in Figure 2, the post of producing nickel cobalt product by serpentine type ore soaks method (simulation dump leaching) leaching technology flow process and comprises the following steps: that ore preparation process 21, post soak (simulation dump leaching) step 22, leach density determining step 23 at night, wherein, the enforcement that post soaks (simulation dump leaching) step 22 comprises the step 211 that applies of mineral acid, and the result produces leach liquor 24 and the leached mud 25 of producing nickel cobalt product.
Soak among embodiment of method (simulation dump leaching) leaching technology at the post of producing nickel cobalt product by serpentine type ore, specifically comprise the following steps:
A, particle diameter is carried out fragmentation greater than the ore of 3cm, control ore particle diameter is less than 3cm, ore moisture content about 25%;
B, bed thickness 5m;
C, be 10% preparation aqueous sulfuric acid by soaking the ore deposit agent concentration, the ore bed top adds soaks the ore deposit agent, allows its natural maceration;
D, Fractional Collections leach liquor, nickel cobalt peak liquid concentrate on and soak ore deposit early stage, and leach liquor is allocated, and make the leach liquor nickel ion concentration reach 2g/L, are used to produce nickel cobalt product, and nickel ion concentration is used to return less than the leach liquor of 1.2g/L and soaks the ore deposit.
In the present embodiment, through 38 days leaching, the nickel leaching yield was 84.9%.And available prior art is handled the leach liquor of nickel and cobalt containing, gets nickel cobalt product.
In other embodiment, may command ore moisture content is greater than 20%; Bed thickness can be 1～6m, and the concentration of soaking the ore deposit agent can be 5～15%, and the leach liquor nickel ion concentration can be 1.5～5g/L, can realize purpose of the present invention equally.
Particularly, in each embodiment, soaking the ore deposit agent is sulfur acid, hydrochloric acid or their mixing aqueous acid.
It may be noted that by above disclosure after being subjected to inspiration of the present invention, those skilled in the art may make such or such modification, change, perfect, yet these have been included within the protection domain of claims all.
Claims (5)
1. method of extracting nickel and/or cobalt from red soil nickel ore comprises heap leaching method and the normal pressure stirring leaching technology of heating, and it is characterized in that:
Limonite type ore adopts normal pressure to heat and stirs leaching; And serpentine type ore adopts the leaching of dump leaching method;
The extracting method of limonite type ore comprises the steps:
The control ore grain size is less than 1cm;
By the volume of the quality of limonite type ore/soak ore deposit agent be added in 1.0: 1.5～1.0: 2.5 concentration be 20～30% soak the ore deposit agent, be 70～100 ℃ in temperature and stir leaching 48～4h down; And
To leach slurry filtration, and wash filter residue with water, the gained leach liquor is used to produce nickel cobalt product,
The extracting method of serpentine type ore comprises the steps: to control ore grain size less than 3cm, and control ore moisture content is greater than 20%; Seam thickness is 1～6m; Add concentration from the ore bed top and be 5～15% soak the ore deposit agent, allow its nature flow into the bottom from the top and carry out maceration; And the leach liquor of collecting allocated, make that nickel ion concentration reaches 1.5～5g/L in the leach liquor, be used to produce nickel cobalt product, nickel ion concentration returns less than the leach liquor of 1.2g/L and soaks the ore deposit.
2. method according to claim 1 is characterized in that, soaking the ore deposit agent is sulfur acid, hydrochloric acid or their mixing aqueous acid.
3. method according to claim 1 is characterized in that, by ore being carried out fragmentation control ore grain size.
4. method according to claim 1 is characterized in that, in the extraction step of limonite type ore:
Granularity is carried out fragmentation greater than the ore of 1cm, and the control ore grain size is less than 1cm;
By the volume of the quality of limonite type ore/soak ore deposit agent is to add 20% sulphuric acid soln at 1.0: 2.3, stirs leaching 24h down at 80 ℃;
To leach slurry filtration, be 3 to add the water washing filter residue by liquid-solid ratio, and leach liquor is used to produce nickel cobalt product.
5. method according to claim 1 is characterized in that, in the extracting method step of serpentine type ore:
Particle diameter is carried out fragmentation greater than the ore of 3cm, and control ore particle diameter is less than 3cm, and ore moisture content is 25%;
Seam thickness 5m;
By soaking the ore deposit agent concentration is 10% preparation aqueous sulfuric acid, adds from the ore bed top and soaks the ore deposit agent, allows its natural maceration;
Fractional Collections leach liquor, nickel cobalt peak liquid concentrate on and soak ore deposit early stage, and leach liquor is allocated, and make the leach liquor nickel ion concentration reach 2g/L, are used to produce nickel cobalt product, and nickel ion concentration is used to return less than the leach liquor of 1.2g/L and soaks the ore deposit.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810094423 CN101270417B (en) | 2008-04-30 | 2008-04-30 | Method for extracting nickel and/or cobalt |
| PCT/CN2009/071388 WO2009132558A1 (en) | 2008-04-30 | 2009-04-21 | A method of extracting ni and/or co |
| AU2009242827A AU2009242827B2 (en) | 2008-04-30 | 2009-04-21 | A method of extracting Ni and/or Co |
| EP09737668.5A EP2270241A4 (en) | 2008-04-30 | 2009-04-21 | A method of extracting ni and/or co |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810094423 CN101270417B (en) | 2008-04-30 | 2008-04-30 | Method for extracting nickel and/or cobalt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101270417A CN101270417A (en) | 2008-09-24 |
| CN101270417B true CN101270417B (en) | 2010-11-03 |
Family
ID=40004641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810094423 Expired - Fee Related CN101270417B (en) | 2008-04-30 | 2008-04-30 | Method for extracting nickel and/or cobalt |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2270241A4 (en) |
| CN (1) | CN101270417B (en) |
| AU (1) | AU2009242827B2 (en) |
| WO (1) | WO2009132558A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270417B (en) * | 2008-04-30 | 2010-11-03 | 江西稀有稀土金属钨业集团有限公司 | Method for extracting nickel and/or cobalt |
| CN101439314B (en) * | 2008-12-29 | 2013-01-16 | 江西稀有稀土金属钨业集团有限公司 | Ore concentration technique for laterite nickel ore rich in nickel and/or cobalt |
| RU2444574C1 (en) * | 2010-08-20 | 2012-03-10 | Открытое акционерное общество "Кольская горно-металлургическая компания" | Method for obtaining cobalt and its compounds |
| JP5279938B1 (en) * | 2011-11-09 | 2013-09-04 | 国立大学法人九州大学 | Valuable metal extractant and method for extracting valuable metal using the extractant |
| CN102921538B (en) * | 2012-11-07 | 2013-11-06 | 牛庆君 | Method for recovering and using nickel from serpentine asbestos rock type asbestos gangue |
| CN103614571A (en) * | 2013-10-09 | 2014-03-05 | 北京矿冶研究总院 | Combined leaching process of laterite-nickel ore |
| CN103773951A (en) * | 2014-01-21 | 2014-05-07 | 江苏仁欣化工股份有限公司 | Method for recovering nickel and cobalt through leaching laterite-nickel ore by using sulfuric and hydrochloric acid containing mixed waste acid |
| CN111961879A (en) * | 2020-08-20 | 2020-11-20 | 湖南中伟新能源科技有限公司 | Method for synergistically leaching cobalt sulfide and cobaltosic oxide, preparation method of nickel-cobalt-manganese ternary precursor and preparation method of cobalt |
| CN113088723B (en) * | 2021-04-06 | 2023-04-11 | 吴家明 | Method and system for smelting laterite-nickel ore |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1002762A (en) * | 1973-10-29 | 1977-01-04 | Donald R. Weir | Process for treating nickeliferous laterite ore containing limonite and serpentine fractions |
| US3991159A (en) * | 1975-01-09 | 1976-11-09 | Amax Inc. | High temperature neutralization of laterite leach slurry |
| US4097575A (en) * | 1976-11-05 | 1978-06-27 | Amax Inc. | Roast-neutralization-leach technique for the treatment of laterite ore |
| AUPS201902A0 (en) * | 2002-04-29 | 2002-06-06 | Qni Technology Pty Ltd | Modified atmospheric leach process for laterite ores |
| AU2003903632A0 (en) * | 2003-07-14 | 2003-07-31 | Qni Technology Pty Ltd | Process for recovery of nickel and cobalt by heap leaching of low grade nickel or cobalt containing material |
| CN100402679C (en) * | 2004-08-02 | 2008-07-16 | 斯凯资源有限公司 | Method for nickel and cobalt recovery from laterite ores by combination of atmospheric and moderate pressure leaching |
| CN102586624A (en) * | 2004-11-17 | 2012-07-18 | Bhp比利通Ssm开发有限公司 | Consecutive or simultaneous leaching of nickel and cobalt containing ores |
| CN101301869B (en) * | 2008-04-28 | 2011-08-24 | 三一重工股份有限公司 | Concrete pump vehicle supporting leg and concrete pump vehicle therewith |
| CN101270417B (en) * | 2008-04-30 | 2010-11-03 | 江西稀有稀土金属钨业集团有限公司 | Method for extracting nickel and/or cobalt |
| CN101439314B (en) * | 2008-12-29 | 2013-01-16 | 江西稀有稀土金属钨业集团有限公司 | Ore concentration technique for laterite nickel ore rich in nickel and/or cobalt |
-
2008
- 2008-04-30 CN CN 200810094423 patent/CN101270417B/en not_active Expired - Fee Related
-
2009
- 2009-04-21 AU AU2009242827A patent/AU2009242827B2/en not_active Ceased
- 2009-04-21 EP EP09737668.5A patent/EP2270241A4/en not_active Withdrawn
- 2009-04-21 WO PCT/CN2009/071388 patent/WO2009132558A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| AU2009242827B2 (en) | 2014-05-08 |
| EP2270241A1 (en) | 2011-01-05 |
| CN101270417A (en) | 2008-09-24 |
| EP2270241A4 (en) | 2016-07-13 |
| WO2009132558A1 (en) | 2009-11-05 |
| AU2009242827A1 (en) | 2009-11-05 |
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Granted publication date: 20101103 |