CN104480326A - Method for producing nickel by using nickel hydroxide being intermediate product of nickel laterite ore - Google Patents
Method for producing nickel by using nickel hydroxide being intermediate product of nickel laterite ore Download PDFInfo
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- CN104480326A CN104480326A CN201410733239.XA CN201410733239A CN104480326A CN 104480326 A CN104480326 A CN 104480326A CN 201410733239 A CN201410733239 A CN 201410733239A CN 104480326 A CN104480326 A CN 104480326A
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Abstract
The invention relates to a method for producing nickel by using nickel hydroxide being an intermediate product of nickel laterite ore. The method is characterized in that the preparation process comprises the following steps: drying nickel hydroxide being an intermediate product of nickel laterite ore, heating to oxidize nickel hydroxide to oxide of nickel, reacting the oxide of nickel with hydrogen, reducing to produce coarse nickel powder; performing oxo synthesis on the crude nickel powder and CO to obtain coarse nickel carbonyl; and performing evaporation and rectifying purification on the coarse nickel carbonyl, and performing thermal decomposition to produce nickel. According to the method of the invention, nickel is produced by effectively using nickel hydroxide being an intermediate product of nickel laterite ore, thus expanding the source of raw materials for nickel production.
Description
Technical field
The present invention relates to a kind of method that red soil nickel ore intermediate product nickel hydroxide produces nickel.
Background technology
Carbonyl process nickel refining technology utilization carbon monoxide and metallic nickel react and generate carbonyl metal compound under certain temperature, pressure effect, and then pyrolysis carbonyl metal compound and obtain a kind of method of pure metal.Not only technique is simple, energy consumption is low for carbonyl nickel refining technique, extraction yield is high, and is conducive to the enrichment of precious metal, is a kind of environment-protective process without the three wastes.Its product such as nickel rondelle, nickel powder, coated composite powder, nickel foam etc. are all widely used novel materials.
Along with the mining depth in several traditional nickel sulfide ore mine is deepened day by day, nickelous sulfide resource is day by day exhausted, and for meeting the demand of Economic development to nickel, the emphasis of development of resources is all aimed at the red soil nickel ore resource of rich reserves by global nickel industry.Produce nickel product because subsequent technique is long, investment is large with nickel hydroxide intermediates, therefore nickelous sulfide cobalt or nickel hydroxide cobalt sell as product by a lot of enterprise, and on market, laterite intermediate raw material is more more stable than the supply of high-quality laterite raw ore.
At present, there is no a kind of carbonyl process process red soil nickel ore intermediate product nickel hydroxide and produce the method for nickel, therefore need to invent novel process prepared by a kind of nickle carbonoxide.
Summary of the invention
Object of the present invention is exactly for the deficiencies in the prior art, provides a kind of red soil nickel ore intermediate product nickel hydroxide to produce the method for nickel.
The object of the invention is to be achieved through the following technical solutions.
Red soil nickel ore intermediate product nickel hydroxide produces a method for nickel, it is characterized in that the step of its preparation process comprises:
(1), after red soil nickel ore intermediate product nickel hydroxide being carried out drying, carry out heating the oxide compound making nickel hydroxide be oxidized to nickel;
(2) by the oxide compound of nickel and hydrogen reaction, reduction generates thick nickel powder;
(3) thick nickel powder and CO are carried out oxo process, obtain thick nickle carbonoxide;
(4) thick nickle carbonoxide is through pervaporation, rectified purified system, carries out thermolysis output nickel.
A kind of red soil nickel ore intermediate product nickel hydroxide of the present invention produces the method for nickel, after it is characterized in that its red soil nickel ore intermediate product nickel hydroxide carries out drying, be in revolution roasting kiln, be heated to 400-450 DEG C, make nickel hydroxide be oxidized to the oxide compound of nickel in atmosphere.
A kind of red soil nickel ore intermediate product nickel hydroxide of the present invention produces the method for nickel, it is characterized in that its step (2) is by hydrogen reducing furnace, controls hydrogen reduction temperature 200-500 DEG C, and the oxide compound of nickel is reduced into thick nickel powder.
A kind of red soil nickel ore intermediate product nickel hydroxide of the present invention produces the method for nickel, it is characterized in that described thick nickel powder sends into oxo process still under protective atmosphere.
A kind of red soil nickel ore intermediate product nickel hydroxide of the present invention produces the method for nickel, and when it is characterized in that thick nickel powder and CO carry out oxo process, CO gas is heated to 150-220 DEG C before passing into synthesis reactor.
A kind of red soil nickel ore intermediate product nickel hydroxide of the present invention produces the method for nickel, will through drying treatment to nickel hydroxide powder, reduce the water content of powder, nickel hydroxide powder through super-dry passes through revolution roasting kiln, when being heated to 400-450 DEG C, nickel hydroxide is oxidized to the oxide compound of nickel in atmosphere; The oxide compound of nickel is reduced into thick nickel powder through hydrogen reducing furnace, thick nickel powder nickeliferous more than 90%; Thick nickel powder, under protective atmosphere, thick nickel powder is sent into synthesis reactor and CO carries out oxo process, thick nickle carbonoxide liquid through pervaporation, rectifying, output nickel rondelle, nickel powder, ferronickel powder after thermolysis.
Embodiment
A kind of vaporizing system is for the method for nickle carbonoxide, its preparation process is that laterite intermediate product nickel hydroxide is passed through drying machine, again through rotary kiln baking, maturing temperature 400-450 DEG C, nickel hydroxide changes the oxide compound of nickel into, the oxide compound of nickel is passed into hydrogen reduction furnace, controls hydrogen reducing furnace temperature 200-500 DEG C, the thick nickel powder of obtained nickel content more than 90%.With thick nickel powder and pure CO for synthesis material, pass into synthesis reactor respectively, control building-up reactions pressure 0.05-7Mpa, synthesis temperature 150-220 DEG C, thick nickel powder and CO react and obtain nickle carbonoxide, the mixed gas of reaction residue, CO and nickle carbonoxide is by discharging after outside still, reaction residues is obtained through being separated dust arrester installation, the mixed gas of CO and nickle carbonoxide obtains nickle carbonoxide liquid and CO gas respectively through overcooling, tripping device, nickle carbonoxide liquid through pervaporation, rectifying, output nickel rondelle, nickel powder, ferronickel powder after thermolysis; CO gas returns bottom synthesis reactor and again participates in reaction, and whole production process is continuous macrocyclic production.
Embodiment 1
Thick nickel by powder enters synthesis reactor with 50kg/h feed rate, and the CO gas of 7Mpa is with 1000NM
3/ h flow passes into synthesis reactor after being heated to 150 DEG C, and thick nickel by powder and CO, in synthesis reactor, building-up reactions occurs, and generates nickel carbonyl gas.The mixed gas obtained at synthesis reactor top, through fly-ash separator, obtains a cupronickel reaction residues bottom fly-ash separator.The mixed gas that dust remover roof is drawn obtains nickle carbonoxide liquid and the CO gas containing micro-nickle carbonoxide through interchanger, condenser, this CO gas is sent into synthesis reactor by gas compressor and again participates in the continuous oxonation of nickle carbonoxide, react after 100 hours and terminate, nickle carbonoxide liquid through pervaporation, rectifying, output nickel rondelle, nickel powder, ferronickel powder after thermolysis.
Embodiment 2
Thick nickel by powder enters synthesis reactor with 50kg/h feed rate, and the CO gas of 5Mpa is with 1000NM
3/ h flow passes into synthesis reactor after being heated to 150 DEG C, and thick nickel by powder and CO, in synthesis reactor, building-up reactions occurs, and generates nickel carbonyl gas.The mixed gas obtained at synthesis reactor top, through fly-ash separator, obtains a cupronickel reaction residues bottom fly-ash separator.The mixed gas that dust remover roof is drawn obtains nickle carbonoxide liquid and the CO gas containing micro-nickle carbonoxide through interchanger, condenser, this CO gas is sent into synthesis reactor by gas compressor and again participates in the continuous oxonation of nickle carbonoxide, react after 100 hours and terminate, nickle carbonoxide liquid through pervaporation, rectifying, output nickel rondelle, nickel powder, ferronickel powder after thermolysis.
Embodiment 3
Thick nickel by powder enters synthesis reactor with 50kg/h feed rate, and the CO gas of 1Mpa is with 1000NM
3/ h flow passes into synthesis reactor after being heated to 150 DEG C, and thick nickel by powder and CO, in synthesis reactor, building-up reactions occurs, and generates nickel carbonyl gas.The mixed gas obtained at synthesis reactor top, through fly-ash separator, obtains a cupronickel reaction residues bottom fly-ash separator.The mixed gas that dust remover roof is drawn obtains nickle carbonoxide liquid and the CO gas containing micro-nickle carbonoxide through interchanger, condenser, this CO gas is sent into synthesis reactor by gas compressor and again participates in the continuous oxonation of nickle carbonoxide, react after 100 hours and terminate, nickle carbonoxide liquid through pervaporation, rectifying, output nickel rondelle, nickel powder, ferronickel powder after thermolysis.
Embodiment 4
Thick nickel by powder enters synthesis reactor with 50kg/h feed rate, and the CO gas of 7Mpa is with 1000NM
3/ h flow passes into synthesis reactor after being heated to 150 DEG C, and thick nickel by powder and CO, in synthesis reactor, building-up reactions occurs, and generates nickel carbonyl gas.The mixed gas obtained at synthesis reactor top, through fly-ash separator, obtains a cupronickel reaction residues bottom fly-ash separator.The mixed gas that dust remover roof is drawn obtains nickle carbonoxide liquid and the CO gas containing micro-nickle carbonoxide through interchanger, condenser, this CO gas is sent into synthesis reactor by gas compressor and again participates in the continuous oxonation of nickle carbonoxide, react after 100 hours and terminate, nickle carbonoxide liquid through pervaporation, rectifying, output nickel rondelle, nickel powder, ferronickel powder after thermolysis.
Claims (5)
1. red soil nickel ore intermediate product nickel hydroxide produces a method for nickel, it is characterized in that the step of its preparation process comprises:
(1), after red soil nickel ore intermediate product nickel hydroxide being carried out drying, carry out heating the oxide compound making nickel hydroxide be oxidized to nickel;
(2) by the oxide compound of nickel and hydrogen reaction, reduction generates thick nickel powder;
(3) thick nickel powder and CO are carried out oxo process, obtain thick nickle carbonoxide;
(4) thick nickle carbonoxide is through pervaporation, rectified purified system, carries out thermolysis output nickel.
2. a kind of red soil nickel ore intermediate product nickel hydroxide according to claim 1 produces the method for nickel, after it is characterized in that its red soil nickel ore intermediate product nickel hydroxide carries out drying, in revolution roasting kiln, be heated to 400-450 DEG C, make nickel hydroxide be oxidized to the oxide compound of nickel in atmosphere.
3. a kind of red soil nickel ore intermediate product nickel hydroxide according to claim 1 produces the method for nickel, it is characterized in that its step (2) is by hydrogen reducing furnace, controls hydrogen reduction temperature 200-500 DEG C, and the oxide compound of nickel is reduced into thick nickel powder.
4. a kind of red soil nickel ore intermediate product nickel hydroxide according to claim 1 produces the method for nickel, it is characterized in that described thick nickel powder sends into oxo process still under protective atmosphere.
5. a kind of red soil nickel ore intermediate product nickel hydroxide according to claim 1 produces the method for nickel, and when it is characterized in that thick nickel powder and CO carry out oxo process, CO gas is heated to 150-220 DEG C before passing into synthesis reactor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410733239.XA CN104480326A (en) | 2014-12-07 | 2014-12-07 | Method for producing nickel by using nickel hydroxide being intermediate product of nickel laterite ore |
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| CN201410733239.XA CN104480326A (en) | 2014-12-07 | 2014-12-07 | Method for producing nickel by using nickel hydroxide being intermediate product of nickel laterite ore |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463183A (en) * | 2015-11-30 | 2016-04-06 | 金川集团股份有限公司 | Treatment method for intermediate product of laterite ore |
| CN107988493A (en) * | 2017-11-17 | 2018-05-04 | 金川集团股份有限公司 | A kind of method that carbonylation slag carbonylation rate is lifted by vulcanizing treatment |
| CN108277341A (en) * | 2017-12-15 | 2018-07-13 | 金川集团股份有限公司 | A kind of sponge nickel and its method of preparation |
| CN113249540A (en) * | 2021-05-14 | 2021-08-13 | 山西太钢不锈钢股份有限公司 | Production method for smelting nickel-based stainless steel by using AOD furnace and using nickel hydroxide as raw material |
| WO2024041978A1 (en) * | 2022-08-23 | 2024-02-29 | Basf Se | Process for the preparation of nickel oxide |
-
2014
- 2014-12-07 CN CN201410733239.XA patent/CN104480326A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463183A (en) * | 2015-11-30 | 2016-04-06 | 金川集团股份有限公司 | Treatment method for intermediate product of laterite ore |
| CN107988493A (en) * | 2017-11-17 | 2018-05-04 | 金川集团股份有限公司 | A kind of method that carbonylation slag carbonylation rate is lifted by vulcanizing treatment |
| CN108277341A (en) * | 2017-12-15 | 2018-07-13 | 金川集团股份有限公司 | A kind of sponge nickel and its method of preparation |
| CN113249540A (en) * | 2021-05-14 | 2021-08-13 | 山西太钢不锈钢股份有限公司 | Production method for smelting nickel-based stainless steel by using AOD furnace and using nickel hydroxide as raw material |
| CN113249540B (en) * | 2021-05-14 | 2022-08-23 | 山西太钢不锈钢股份有限公司 | Production method for smelting nickel stainless steel by using AOD furnace and nickel hydroxide as raw material |
| WO2024041978A1 (en) * | 2022-08-23 | 2024-02-29 | Basf Se | Process for the preparation of nickel oxide |
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Application publication date: 20150401 |