CN102226232A - Method for processing laterite-nickel ore - Google Patents
Method for processing laterite-nickel ore Download PDFInfo
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- CN102226232A CN102226232A CN2011101158894A CN201110115889A CN102226232A CN 102226232 A CN102226232 A CN 102226232A CN 2011101158894 A CN2011101158894 A CN 2011101158894A CN 201110115889 A CN201110115889 A CN 201110115889A CN 102226232 A CN102226232 A CN 102226232A
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- 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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The invention discloses a method for processing laterite-nickel ore. The method provided by the invention is characterized in that laterite-nickel ore undergoes an ore-washing treatment; noumeite and limonite-type laterite-nickel ore are separated; separated noumeite is melted by the pyrometallurgical process to generate ferronickel; and metallic nickel is extracted from the separated limonite-type laterite-nickel ore by the wet process. According to the method provided by the invention, based on the different mineral compositions of different laterite-nickel ore particle fractions, limonite-type laterite-nickel ore containing high content of iron and low content of magnesium is melted by the wet process to extract metallic nickel, thus leading to low acid consumption; noumeite containing low content of iron and high content of magnesium is melted by the pyrometallurgical process to extract ferronickel, thus leading to high quality of the produced ferronickel, high recovery rate of nickel, low energy consumption and simultaneous recovery of iron.
Description
Technical field
The present invention relates to reclaim in a kind of red soil nickel ore the method for metalliferous mineral, relate in particular to the method that a kind of transition layer red soil nickel ore extracts metal.
Background technology
Red soil nickel ore mainly is divided into three kinds of mineral components that extraction value is arranged: the transition layer between limonite layer, the saprolite layer above the basement rock and the limonite and the saprolite on surface.Nickel-containing mineral in the limonite is pyrrhosiderite and/or rhombohedral iron ore; Nickel-containing mineral in the saprolite mainly is the very high mineral of siliceous magnesium, as serpentine, noumeite, chlorite, nontronite and montmorillonite etc.Ore in the transition layer not only contains limonite but also contain saprolite.Limonite type red soil nickel ore iron content is higher and Mg content is low, and noumeite is just in time opposite.
For red soil nickel ore of different nature, extract metallic nickel as the mode of less expensive how, the selection of metallurgical method is very important.There are pyrometallurgical smelting production ferronickel or high ice nickel (abbreviation thermal process), reducing roasting ammonia to soak production nickel product (claiming CARON technology), be used to handle red soil nickel ore at present in the suitability for industrialized production with the full wet production metallic nickel of acidleach or three kinds of main smelting technologyes of nickeliferous intermediates.Dissimilar ores need adopt different smelting technologyes.Generally speaking, whole world red soil nickel ore adopts following three kinds of main smelting technology flow processs to produce.
(1) thermal process
Ore carries out the high temperature reduction roasting after drying, carries out melting then in electric furnace, output ferronickel or high ice nickel (under the situation that adds sulphur).Product: Ni content 25%～35% ferronickel; Or the high ice of Ni content 〉=75% nickel.
This technical process metal recovery rate is generally greater than 90%, but can not comprehensively reclaim the cobalt in the ore.Because ore needs drying, roasting and 1600 ℃ of following meltings, thereby the energy consumption height.
This technology is to be used for the technology that commercial nickel is smelted the earliest, and technology maturation is reliable, is applicable to the ore of processing based on the residual overburden ore deposit.Consider that from economic angle when power charge was low, the lowest quality of nickel should be 1.7%; When power charge was high, the grade of nickel was greater than 2.0%.
(2) CARON technology
Ore is reduced into metallic nickel (cobalt and part iron are reduced together) at 700 ℃ of following nickel by selectivity after drying, and metallized nickel soaks through ammonia, reclaims the nickel cobalt.
This technical process metal recovery rate is on the low side, and general nickel is 70～80%, cobalt 40～60%.Because ore needs drying, roasting energy consumption height, this technology can be handled and contain the ore of magnesium about 10%, has four families adopting this explained hereafter at present in the world.
(3) acid (HPAL, EPAL or PAL) technology that leaches of wet method
Ore (slurry) leaches with sulfuric acid (high pressure or normal pressure), and the nickel cobalt is entered in the solution with sulphate form, obtains nickel cobalt intermediates through operations such as sulfide precipitation or precipitations of hydroxide again.Intermediates are through further obtaining metallic nickel cobalt product after the refining.
High pressure acidleach (HPAL) process metal rate of recovery height, and can comprehensively reclaim cobalt, the rate of recovery of nickel and cobalt is generally 88%～92%.In order further to reduce the consumption of acid consumption and minimizing neutralizing agent Wingdale, in reinforced high pressure acid leaching process (EPAL), adopt the ore blending high pressure of high magnesium to leach the residual acid in back.This process synthesis energy consumption further reduces, and improves resource utilization.
Sulfuric acid consumption is the prime cost of high pressure acidity (HPAL) technology, thereby the high pressure acid leaching process generally is applicable to handle and contains magnesium less than 4% limonite layer ore, reinforced high pressure acidleach (EPAL) technology is owing to handle high magnesium and low magnesium ore respectively, thereby can handle and contain the higher ore of magnesium.
On the whole, CARON technology is because production energy consumption height and metal recovery rate is low, and present newly-built factory does not all adopt this technology, and new project mainly adopts thermal process and wet method acid immersion technology.Trend from development; country is more and more higher to the requirement of environment protection and energy-saving and emission-reduction; and thermal process is because of high this defective of energy consumption; its development will inevitably be subjected to certain restriction, and the problem that the acid consumption that red soil nickel ore wet method acid immersion technology causes for the leaching of magnesium in the ore increases can't be resolved.
Summary of the invention
Purpose of the present invention is exactly the problem that exists at prior art, a kind of treatment process of transition layer red soil nickel ore is provided, its with the laterite nickel of the noumeite in the transition layer red soil nickel ore and limonite type with separate with different metallurgical method processing, use wet method to leach extraction nickel the red soil nickel ore of limonite type, noumeite is used the technology of pyrometallurgical smelting ferronickel.
Above-mentioned purpose realizes by following proposal:
A kind of method of handling red soil nickel ore, it is characterized in that, described method is carried out washup with red soil nickel ore and is handled, noumeite and limonite type red soil nickel ore are separated, separate the noumeite that obtains and adopt the thermal process smelting ferronickel, separate the limonite type red soil nickel ore that obtains and adopt wet processing to extract metallic nickel.
According to aforesaid method, it is characterized in that the method that described method adopts scouring earlier to wash by rubbing with the hands is again carried out washup.
According to aforesaid method, it is characterized in that described pyrometallurgical smelting ferronickel technology is after adopting rotary kiln drying, adopts rotary kiln prereduction roasting, uses the technology of ore-smelting furnace melting ferronickel then.
According to aforesaid method, it is characterized in that described wet processing extraction metallic nickel comprises any one in sulfuric acid normal pressure lixiviation process and the sulfuric acid pressure leaching process.
Beneficial effect of the present invention: this method has made full use of the difference of mineral composition of different nature in the transition layer red soil nickel ore, the method that adopts washup with the laterite nickel of noumeite and limonite type with separate with different metallurgical method processing, adopt hydrometallurgy to extract the metallic nickel cobalt limonite type red soil nickel ore, noumeite is adopted the pyrometallurgical smelting ferronickel, can realize extracting wherein valuable metal in the mode of less expensive, the nickel recovery height, energy consumption is low, also can extract the iron in the ore.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Limonite type composition generally is present in the transition layer red soil nickel ore with the form of clay, and noumeite type composition is present in the transition layer red soil nickel ore with the form of ore matter such as serpentine, chlorite, nontronite and montmorillonite, thereby these 2 kinds of compositions can be separated by the mode of washup.
Referring to Fig. 1, the method of processing red soil nickel ore of the present invention comprises that adopting elder generation to clean the method for washing by rubbing with the hands again red soil nickel ore carries out washup, noumeite and limonite type red soil nickel ore are separated, separate the noumeite that obtains and adopt the thermal process smelting ferronickel, separate the limonite type red soil nickel ore that obtains and adopt wet processing to extract metallic nickel.
Embodiment 1
The wet method combined method of a kind of fire is handled red soil nickel ore technology, it carries out washup with the method that red soil nickel ore adopts scouring earlier to wash by rubbing with the hands again, noumeite and limonite type red soil nickel ore are separated, noumeite adopts the thermal process smelting ferronickel, its step is after adopting rotary kiln drying, adopt rotary kiln prereduction roasting, use the technology of ore-smelting furnace melting ferronickel then.Limonite type red soil nickel ore adopts sulfuric acid normal pressure lixiviation process to extract metallic nickel.
Embodiment 2
The wet method combined method of a kind of fire is handled red soil nickel ore technology, it is characterized in that red soil nickel ore is cleaned the method for washing by rubbing with the hands more earlier carries out washup, noumeite and limonite type red soil nickel ore are separated, noumeite adopts the thermal process smelting ferronickel, its step is after adopting rotary kiln drying, adopt rotary kiln prereduction roasting, use the technology of ore-smelting furnace melting ferronickel then.Limonite type red soil nickel ore adopts the sulfuric acid pressure leaching process to extract metallic nickel.
Claims (4)
1. method of handling red soil nickel ore, it is characterized in that, described method is carried out washup with red soil nickel ore and is handled, noumeite and limonite type red soil nickel ore are separated, separate the noumeite that obtains and adopt the thermal process smelting ferronickel, separate the limonite type red soil nickel ore that obtains and adopt wet processing to extract metallic nickel.
2. method according to claim 1 is characterized in that, the method that described method adopts scouring earlier to wash by rubbing with the hands is again carried out washup.
3. method according to claim 1 is characterized in that, described pyrometallurgical smelting ferronickel technology is after adopting rotary kiln drying, adopts rotary kiln prereduction roasting, uses the technology of ore-smelting furnace melting ferronickel then.
4. method according to claim 1 is characterized in that, described wet processing extraction metallic nickel comprises any one in sulfuric acid normal pressure lixiviation process and the sulfuric acid pressure leaching process.
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| CN2011101158894A CN102226232A (en) | 2011-05-06 | 2011-05-06 | Method for processing laterite-nickel ore |
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| CN2011101158894A CN102226232A (en) | 2011-05-06 | 2011-05-06 | Method for processing laterite-nickel ore |
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| CN2011101158894A Pending CN102226232A (en) | 2011-05-06 | 2011-05-06 | Method for processing laterite-nickel ore |
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Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600981A (en) * | 2012-03-20 | 2012-07-25 | 昆明理工大学 | Flotation classification method of low-grade composite nickel oxide ores |
| CN104611550A (en) * | 2014-12-31 | 2015-05-13 | 金川集团股份有限公司 | Method for extracting nickel, cobalt and iron from limonite |
| CN104611553A (en) * | 2014-12-31 | 2015-05-13 | 金川集团股份有限公司 | Method for recovering nickel, cobalt, iron, silicon and magnesium in limonite |
| CN104611580A (en) * | 2014-12-31 | 2015-05-13 | 金川集团股份有限公司 | Method for treating low-grade nickel laterite ore |
| CN104611581A (en) * | 2014-12-31 | 2015-05-13 | 金川集团股份有限公司 | Method for extracting nickel from low-grade nickel laterite ore |
| CN104611554A (en) * | 2014-12-31 | 2015-05-13 | 金川集团股份有限公司 | Method for extracting nickel, cobalt and iron from limonite |
| CN104611582A (en) * | 2014-12-31 | 2015-05-13 | 金川集团股份有限公司 | Method for recovering nickel, cobalt, iron and silicon from low-grade laterite-nickel ore through united leaching technology |
| CN104611579A (en) * | 2014-12-31 | 2015-05-13 | 金川集团股份有限公司 | Method for recycling nickel from low-grade nickel laterite ore |
| CN104611552A (en) * | 2014-12-31 | 2015-05-13 | 金川集团股份有限公司 | Method for extracting nickel from brown iron ore |
| CN104630501A (en) * | 2014-12-31 | 2015-05-20 | 金川集团股份有限公司 | Method for recovering nickel, cobalt, iron and silicon from low-grade laterite-nickel ore by combined leaching process |
| CN104630504A (en) * | 2014-12-31 | 2015-05-20 | 金川集团股份有限公司 | Method for recovering nickel from limonite |
| CN104630502A (en) * | 2014-12-31 | 2015-05-20 | 金川集团股份有限公司 | Method for recovering nickel, cobalt, iron and silicon from limonite by combined leaching process |
| CN104630505A (en) * | 2014-12-31 | 2015-05-20 | 金川集团股份有限公司 | Method for recovering nickel, cobalt, iron and silicon from low-grade laterite-nickel ore by combined leaching process |
| CN104651634A (en) * | 2014-12-31 | 2015-05-27 | 金川集团股份有限公司 | Method for recovering nickel, cobalt and iron from laterite-nickel ores |
| CN104762493A (en) * | 2014-12-31 | 2015-07-08 | 金川集团股份有限公司 | Method for treating laterite nickel ore through combination of normal-pressure acid leaching and medium-pressure leaching |
| CN104789765A (en) * | 2014-12-31 | 2015-07-22 | 金川集团股份有限公司 | A method of recovering nickel, iron and silicon from limonite by a combined leaching process |
| CN104789797A (en) * | 2014-12-31 | 2015-07-22 | 金川集团股份有限公司 | A novel method of recovering nickel, cobalt, iron, silicon and magnesium from low-grade lateritic nickel ore |
| CN104789799A (en) * | 2014-12-31 | 2015-07-22 | 金川集团股份有限公司 | A lateritic nickel ore treating method combining atmospheric-pressure acid leaching and medium-pressure leaching |
| CN104789767A (en) * | 2014-12-31 | 2015-07-22 | 金川集团股份有限公司 | A method of recovering nickel, cobalt, iron, silicon and magnesium from lateritic nickel ore |
| CN104789768A (en) * | 2014-12-31 | 2015-07-22 | 金川集团股份有限公司 | A method of recovering nickel, cobalt, iron, silicon and magnesium from lateritic nickel ore |
| CN104789798A (en) * | 2014-12-31 | 2015-07-22 | 金川集团股份有限公司 | A lateritic nickel ore treating method combining atmospheric-pressure acid leaching and medium-pressure leaching |
| CN104805308A (en) * | 2014-12-31 | 2015-07-29 | 金川集团股份有限公司 | New method for recovering nickel, cobalt, iron, silicon and magnesium from low-grade laterite-nickel ore |
| CN104805306A (en) * | 2014-12-31 | 2015-07-29 | 金川集团股份有限公司 | New method for recovering nickel, cobalt and iron from low-grade laterite-nickel ore |
| CN104805309A (en) * | 2014-12-31 | 2015-07-29 | 金川集团股份有限公司 | Method for recovering nickel, cobalt and iron from laterite-nickel ore |
| CN104805307A (en) * | 2014-12-31 | 2015-07-29 | 金川集团股份有限公司 | New method for recovering nickel, cobalt and iron from low-grade laterite-nickel ore |
| CN104831087A (en) * | 2014-12-31 | 2015-08-12 | 金川集团股份有限公司 | Method of recycling nickel, cobalt, iron and silicon from low-grade laterite nickel ore through combined leaching process |
| CN104831061A (en) * | 2014-12-31 | 2015-08-12 | 金川集团股份有限公司 | Method of recycling nickel, cobalt and iron from low-grade laterite-nickel ore |
| CN107250394A (en) * | 2015-02-24 | 2017-10-13 | 住友金属矿山株式会社 | The wet type smelting process of nickel oxide ore |
| CN107245643A (en) * | 2017-04-19 | 2017-10-13 | 广西盛隆冶金有限公司 | A kind of sea sand ore deposit and lateritic nickel ore preprocess method |
| CN108165733A (en) * | 2018-01-02 | 2018-06-15 | 昆明理工大学 | A kind of method of the more metal synthetical recoveries of nickel, iron, magnesium in silicon magnesium types lateritic nickel ore |
| CN108559838A (en) * | 2018-05-10 | 2018-09-21 | 重庆大学 | The method that lateritic nickel ore mixed smelting prepares dilval |
| CN112080636A (en) * | 2020-08-17 | 2020-12-15 | 广东邦普循环科技有限公司 | Method for producing battery-grade nickel sulfate salt by using laterite-nickel ore |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600981A (en) * | 2012-03-20 | 2012-07-25 | 昆明理工大学 | Flotation classification method of low-grade composite nickel oxide ores |
| CN104789767A (en) * | 2014-12-31 | 2015-07-22 | 金川集团股份有限公司 | A method of recovering nickel, cobalt, iron, silicon and magnesium from lateritic nickel ore |
| CN104789797A (en) * | 2014-12-31 | 2015-07-22 | 金川集团股份有限公司 | A novel method of recovering nickel, cobalt, iron, silicon and magnesium from low-grade lateritic nickel ore |
| CN104611580A (en) * | 2014-12-31 | 2015-05-13 | 金川集团股份有限公司 | Method for treating low-grade nickel laterite ore |
| CN104789768A (en) * | 2014-12-31 | 2015-07-22 | 金川集团股份有限公司 | A method of recovering nickel, cobalt, iron, silicon and magnesium from lateritic nickel ore |
| CN104611554A (en) * | 2014-12-31 | 2015-05-13 | 金川集团股份有限公司 | Method for extracting nickel, cobalt and iron from limonite |
| CN104611582A (en) * | 2014-12-31 | 2015-05-13 | 金川集团股份有限公司 | Method for recovering nickel, cobalt, iron and silicon from low-grade laterite-nickel ore through united leaching technology |
| CN104611579A (en) * | 2014-12-31 | 2015-05-13 | 金川集团股份有限公司 | Method for recycling nickel from low-grade nickel laterite ore |
| CN104611552A (en) * | 2014-12-31 | 2015-05-13 | 金川集团股份有限公司 | Method for extracting nickel from brown iron ore |
| CN104630501A (en) * | 2014-12-31 | 2015-05-20 | 金川集团股份有限公司 | Method for recovering nickel, cobalt, iron and silicon from low-grade laterite-nickel ore by combined leaching process |
| CN104630504A (en) * | 2014-12-31 | 2015-05-20 | 金川集团股份有限公司 | Method for recovering nickel from limonite |
| CN104630502A (en) * | 2014-12-31 | 2015-05-20 | 金川集团股份有限公司 | Method for recovering nickel, cobalt, iron and silicon from limonite by combined leaching process |
| CN104630505A (en) * | 2014-12-31 | 2015-05-20 | 金川集团股份有限公司 | Method for recovering nickel, cobalt, iron and silicon from low-grade laterite-nickel ore by combined leaching process |
| CN104651634A (en) * | 2014-12-31 | 2015-05-27 | 金川集团股份有限公司 | Method for recovering nickel, cobalt and iron from laterite-nickel ores |
| CN104762493A (en) * | 2014-12-31 | 2015-07-08 | 金川集团股份有限公司 | Method for treating laterite nickel ore through combination of normal-pressure acid leaching and medium-pressure leaching |
| CN104789765A (en) * | 2014-12-31 | 2015-07-22 | 金川集团股份有限公司 | A method of recovering nickel, iron and silicon from limonite by a combined leaching process |
| CN104611553A (en) * | 2014-12-31 | 2015-05-13 | 金川集团股份有限公司 | Method for recovering nickel, cobalt, iron, silicon and magnesium in limonite |
| CN104789799A (en) * | 2014-12-31 | 2015-07-22 | 金川集团股份有限公司 | A lateritic nickel ore treating method combining atmospheric-pressure acid leaching and medium-pressure leaching |
| CN104611550A (en) * | 2014-12-31 | 2015-05-13 | 金川集团股份有限公司 | Method for extracting nickel, cobalt and iron from limonite |
| CN104611581A (en) * | 2014-12-31 | 2015-05-13 | 金川集团股份有限公司 | Method for extracting nickel from low-grade nickel laterite ore |
| CN104789798A (en) * | 2014-12-31 | 2015-07-22 | 金川集团股份有限公司 | A lateritic nickel ore treating method combining atmospheric-pressure acid leaching and medium-pressure leaching |
| CN104805306A (en) * | 2014-12-31 | 2015-07-29 | 金川集团股份有限公司 | New method for recovering nickel, cobalt and iron from low-grade laterite-nickel ore |
| CN104805308A (en) * | 2014-12-31 | 2015-07-29 | 金川集团股份有限公司 | New method for recovering nickel, cobalt, iron, silicon and magnesium from low-grade laterite-nickel ore |
| CN104805309A (en) * | 2014-12-31 | 2015-07-29 | 金川集团股份有限公司 | Method for recovering nickel, cobalt and iron from laterite-nickel ore |
| CN104805307A (en) * | 2014-12-31 | 2015-07-29 | 金川集团股份有限公司 | New method for recovering nickel, cobalt and iron from low-grade laterite-nickel ore |
| CN104831087A (en) * | 2014-12-31 | 2015-08-12 | 金川集团股份有限公司 | Method of recycling nickel, cobalt, iron and silicon from low-grade laterite nickel ore through combined leaching process |
| CN104831061A (en) * | 2014-12-31 | 2015-08-12 | 金川集团股份有限公司 | Method of recycling nickel, cobalt and iron from low-grade laterite-nickel ore |
| CN107250394A (en) * | 2015-02-24 | 2017-10-13 | 住友金属矿山株式会社 | The wet type smelting process of nickel oxide ore |
| CN107250394B (en) * | 2015-02-24 | 2018-09-04 | 住友金属矿山株式会社 | The wet type smelting process of nickel oxide ore |
| CN107245643A (en) * | 2017-04-19 | 2017-10-13 | 广西盛隆冶金有限公司 | A kind of sea sand ore deposit and lateritic nickel ore preprocess method |
| CN108165733A (en) * | 2018-01-02 | 2018-06-15 | 昆明理工大学 | A kind of method of the more metal synthetical recoveries of nickel, iron, magnesium in silicon magnesium types lateritic nickel ore |
| CN108559838A (en) * | 2018-05-10 | 2018-09-21 | 重庆大学 | The method that lateritic nickel ore mixed smelting prepares dilval |
| CN108559838B (en) * | 2018-05-10 | 2020-03-17 | 重庆大学 | Method for preparing nickel-iron alloy by mixed smelting of laterite-nickel ore |
| CN112080636A (en) * | 2020-08-17 | 2020-12-15 | 广东邦普循环科技有限公司 | Method for producing battery-grade nickel sulfate salt by using laterite-nickel ore |
| WO2022037404A1 (en) * | 2020-08-17 | 2022-02-24 | 广东邦普循环科技有限公司 | Method for producing battery-grade nickel sulfate by means of laterite nickel ore |
| US20230227326A1 (en) * | 2020-08-17 | 2023-07-20 | Guangdong Brunp Recycling Technology Co., Ltd. | Method for producing battery-grade nickel sulfate by using laterite nickel ore |
| EP4190924A4 (en) * | 2020-08-17 | 2024-01-17 | Guangdong Brunp Recycling Technology Co., Ltd | Method for producing battery-grade nickel sulfate by means of laterite nickel ore |
| US11952288B2 (en) | 2020-08-17 | 2024-04-09 | Guangdong Brunp Recycling Technology Co., Ltd. | Method for producing battery-grade nickel sulfate by using laterite nickel ore |
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Application publication date: 20111026 |