CN204892964U - System for utilize ferronickel preparation carbonyl nickel powder - Google Patents
System for utilize ferronickel preparation carbonyl nickel powder Download PDFInfo
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- CN204892964U CN204892964U CN201520607082.6U CN201520607082U CN204892964U CN 204892964 U CN204892964 U CN 204892964U CN 201520607082 U CN201520607082 U CN 201520607082U CN 204892964 U CN204892964 U CN 204892964U
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- carbon monoxide
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 282
- 229910000863 Ferronickel Inorganic materials 0.000 title claims abstract description 87
- 238000002360 preparation method Methods 0.000 title abstract description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 119
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 119
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 65
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000000203 mixture Substances 0.000 claims abstract description 40
- 239000008246 gaseous mixture Substances 0.000 claims abstract description 36
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 30
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 30
- 150000001875 compounds Chemical class 0.000 claims abstract description 29
- 239000007787 solid Substances 0.000 claims abstract description 29
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims description 57
- 229910052717 sulfur Inorganic materials 0.000 claims description 44
- 239000011593 sulfur Substances 0.000 claims description 44
- 230000006315 carbonylation Effects 0.000 claims description 30
- 238000005810 carbonylation reaction Methods 0.000 claims description 30
- 238000000889 atomisation Methods 0.000 claims description 29
- 238000005469 granulation Methods 0.000 claims description 8
- 230000003179 granulation Effects 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 abstract description 51
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 abstract description 42
- 238000004519 manufacturing process Methods 0.000 abstract description 20
- 238000005453 pelletization Methods 0.000 abstract description 18
- 239000005864 Sulphur Substances 0.000 abstract description 9
- 239000008187 granular material Substances 0.000 abstract description 8
- 238000000354 decomposition reaction Methods 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 77
- 230000008569 process Effects 0.000 description 53
- 239000002994 raw material Substances 0.000 description 19
- 238000002156 mixing Methods 0.000 description 17
- 238000009833 condensation Methods 0.000 description 16
- 230000005494 condensation Effects 0.000 description 16
- 239000003054 catalyst Substances 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 11
- 229910052742 iron Inorganic materials 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 7
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 7
- 229910000570 Cupronickel Inorganic materials 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 229910000792 Monel Inorganic materials 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 238000011031 large-scale manufacturing process Methods 0.000 description 4
- 239000008188 pellet Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000009628 steelmaking Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 238000001994 activation Methods 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229960004424 carbon dioxide Drugs 0.000 description 2
- 229910002090 carbon oxide Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010189 synthetic method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910017709 Ni Co Inorganic materials 0.000 description 1
- FDEJSJBWOCAQAD-UHFFFAOYSA-N [Ni].O=C=[Ni] Chemical compound [Ni].O=C=[Ni] FDEJSJBWOCAQAD-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910001710 laterite Inorganic materials 0.000 description 1
- 239000011504 laterite Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- NQNBVCBUOCNRFZ-UHFFFAOYSA-N nickel ferrite Chemical compound [Ni]=O.O=[Fe]O[Fe]=O NQNBVCBUOCNRFZ-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a system for utilize ferronickel preparation carbonyl nickel powder, include: melting equipment has the ferronickel entry, contains solid -state compound entry of sulphur and the export of ferronickel fuse -element, atomizing pelletization device has ferronickel fuse -element entry and ferronickel grain exports, the carbonyl synthesis device has carbon monoxide entry, ferronickel granule entry, gaseous state mixture outlet and iron powder export, condensing equipment has gaseous mixture entry, liquid mixture outlet and carbon monoxide export, the rectifier unit has liquid mixture entry and the export of gaseous state nickel carbonyl, and decomposition device, gaseous state nickel carbonyl entry, carbonyl nickel powder export and the export of the 2nd carbon monoxide have. This system can reduce carbonyl nickel powder's manufacturing cost when improving the ferronickel value.
Description
Technical field
The utility model belongs to metallurgical technology field, and specifically, the utility model relates to a kind of system utilizing dilval to prepare carbonyl nickel powder.
Background technology
In recent years, along with the exhaustion of high-grade nickel sulfide ore and the fast development of domestic stainless steel industry, low-grade laterite nickel ore has become the primary raw material producing ferro-nickel product.In order to solve the Rational Utilization of lateritic nickel ore, take lateritic nickel ore as raw material, coal dust is reducing agent, adopts direct-reduction process that the iron nickel oxide in ore is reduced into metallic iron and metallic nickel, then through mineral hot furnace or a molten point stove, nickel is enriched in dilval.Commercial Application at present to dilval, only rest in the aspect of the raw material that it can be used as smelting stainless steel its research, value-added content of product is not high yet.
Carbonyl nickel is found by Meng De and Lan Ji for 1889, they find that the CO of four molecules can react with the active nickel of a molecule in normal pressure and 40 ~ 100 DEG C and generate colourless gas and carbonyl nickel, and they prove that this reaction is reversible further, heating carbonyl nickel just resolves into nickel and CO to 150 ~ 300 DEG C.Carbonyl process produces simple metal, optionally can not only generate carbonyl products, and can easily be separated Sum decomposition under suitable condition and become highly purified metal.Such as, the carbonyls of nickel and iron differs greatly due to their boiling point, and be respectively 43 DEG C and 103 DEG C, available straightforward procedure is separated.International Nickel company of Canada Ltd. reports, has the corronil of certain sulfur content, after atomization is granulated, can obtain highly active carbonylation synthesis raw material, material composition Ni65 ~ 70%, Cu15%, Fe1%, S4 ~ 5%.
Chinese research carbonylation metallurgical technology also has the history of more than 50 year, but all do not form systematization and industrialization, and raw material is selected from electrolytic nickel, this all causes production carbonyl nickel nickel powder cost and remains high, and utilizes other nickel-containing material to produce carbonyl nickel and is still a technical barrier.
Chinese patent CN1603240A discloses a kind of synthetic method of carbonyl nickel, monel or nickel copper alloy are placed in fixed bed reactors by the method, pass into carbon monoxide and carry out oxonation, at oxonation condition pressure 5 ~ 15MPa, at temperature 150 ~ 250 DEG C, obtain carbonyl nickel product.But the shortcoming of the method is nickel in monel is not activated, the reactivity of nickel is low, and alloy is not also granulated in addition, limited with the contact area of CO, and these will have a strong impact on the synthesis of carbonyl nickel.
Chinese patent CN1775695A discloses a kind of synthetic method of carbonyl nickel, and monel is carried out atomization process in molten state and granulates by the method, carries out carbonylation, carbonylation synthesis condition: CO content >=92% in the autoclave of 10 liters; CO gas circulation rate 8 ~ 12 times/hour in the system of carbonylation synthesis, pressure: 5 ~ 12Mpa; Temperature: 100 ~ 150 DEG C; Generated time: 24 ~ 32 hours.But the shortcoming of the method be nickel in monel not through activation process, the reactivity of nickel is low, is unfavorable for the synthesis of carbonyl nickel.
Therefore, the existing technology preparing nickel is further improved.
Utility model content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, an object of the present utility model is to propose a kind of system utilizing dilval to prepare carbonyl nickel powder, this system can effectively utilize dilval to prepare highly purified carbonyl nickel powder, thus reduces the production cost of carbonyl nickel powder while improving dilval value.
In one of the present utility model, the utility model proposes a kind of system utilizing dilval to prepare carbonyl nickel powder, according to embodiment of the present utility model, this system comprises:
Melting appartus, described melting appartus has dilval entrance, sulfur-bearing solid compounds entrance and ferronickel melt outlet, and is suitable for carrying out melt processed, to obtain ferronickel melt by after described dilval and the mixing of sulfur-bearing solid compounds;
Atomization granulation device, described atomization granulation device has ferronickel melt inlet and dilval particle outlet, described ferronickel melt inlet is connected with described ferronickel melt outlet, and is suitable for described ferronickel melt being carried out atomization pelletization treatment, to obtain dilval particle;
Carbonylation synthesis device, described carbonylation synthesis device has carbon monoxide inlet, dilval particle entrance, gaseous mixture outlet and iron powder outlet, described dilval particle entrance is connected with described dilval particle outlet, and be suitable for described dilval particle being contacted with carbon monoxide, so that the gaseous mixture obtained containing carbonyl nickel, carbonyl iron and carbon monoxide and iron powder;
Condensing unit, described condensing unit has gaseous mixture entrance, liquefied mixture outlet and the outlet of the first carbon monoxide, described gaseous mixture entrance exports with described gaseous mixture and is connected, and be suitable for the described gaseous mixture containing carbonyl nickel, carbonyl iron and carbon monoxide to carry out condensation process, so that the liquefied mixture obtained containing carbonyl nickel and carbonyl iron and the first carbon monoxide;
Rectifier unit, described rectifier unit has liquefied mixture entrance and the outlet of gaseous state carbonyl nickel, described liquefied mixture entrance exports with described liquefied mixture and is connected, and is suitable for the described liquefied mixture containing carbonyl nickel and carbonyl iron to carry out rectification process, to obtain gaseous state carbonyl nickel; And
Decomposer, described decomposer has gaseous state carbonyl nickel entrance, carbonyl nickel powder outlet and the outlet of the second carbon monoxide, described gaseous state carbonyl nickel entrance is connected with described gaseous state carbonyl nickel outlet, and be suitable for described gaseous state carbonyl nickel to carry out resolution process, to obtain carbonyl nickel powder and the second carbon monoxide respectively.
Thus, the system utilizing dilval to prepare carbonyl nickel powder according to the utility model embodiment can effectively utilize dilval to prepare highly purified carbonyl nickel powder, thus reduces the production cost of carbonyl nickel powder while improving dilval value.
In addition, following additional technical characteristic can also be had according to the system utilizing dilval to prepare carbonyl nickel powder of the utility model above-described embodiment:
Optional, described first carbon monoxide outlet is connected with described carbon monoxide inlet, and is suitable for described first carbonoxide to be back to described carbonylation synthesis device and described dilval particle contacts.Thus, the cyclic utilization rate of carbon monoxide can be significantly improved.
Optional, described second carbon monoxide outlet is connected with described carbon monoxide inlet, and is suitable for described second carbonoxide to be back to described carbonylation synthesis device and described dilval particle contacts.Thus, the cyclic utilization rate of carbon monoxide can be improved further.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 prepares the system architecture schematic diagram of carbonyl nickel powder according to the dilval that utilizes of the utility model embodiment;
Fig. 2 prepares the system architecture schematic diagram of carbonyl nickel powder according to the dilval that utilizes of another embodiment of the utility model;
Fig. 3 prepares the system architecture schematic diagram of carbonyl nickel powder according to the dilval that utilizes of another embodiment of the utility model;
Fig. 4 utilizes dilval to prepare the method flow schematic diagram of carbonyl nickel powder according to the System Implementation utilizing dilval to prepare carbonyl nickel powder of the utility model embodiment;
Fig. 5 utilizes dilval to prepare the method flow schematic diagram of carbonyl nickel powder according to the System Implementation utilizing dilval to prepare carbonyl nickel powder of another embodiment of the utility model;
Fig. 6 utilizes dilval to prepare the method flow schematic diagram of carbonyl nickel powder according to the System Implementation utilizing dilval to prepare carbonyl nickel powder of another embodiment of the utility model.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In one of the present utility model, the utility model proposes a kind of system utilizing dilval to prepare carbonyl nickel powder.According to embodiment of the present utility model, this system comprises: melting appartus, described melting appartus has dilval entrance, sulfur-bearing solid compounds entrance and ferronickel melt outlet, and be suitable for carrying out melt processed, to obtain ferronickel melt by after described dilval and the mixing of sulfur-bearing solid compounds; Atomization granulation device, described atomization granulation device has ferronickel melt inlet and dilval particle outlet, described ferronickel melt inlet is connected with described ferronickel melt outlet, and is suitable for described ferronickel melt being carried out atomization pelletization treatment, to obtain dilval particle; Carbonylation synthesis device, described carbonylation synthesis device has carbon monoxide inlet, dilval particle entrance, gaseous mixture outlet and iron powder outlet, described dilval particle entrance is connected with described dilval particle outlet, and be suitable for described dilval particle being contacted with carbon monoxide, so that the gaseous mixture obtained containing carbonyl nickel, carbonyl iron and carbon monoxide and iron powder; Condensing unit, described condensing unit has gaseous mixture entrance, liquefied mixture outlet and the outlet of the first carbon monoxide, described gaseous mixture entrance exports with described gaseous mixture and is connected, and be suitable for the described gaseous mixture containing carbonyl nickel, carbonyl iron and carbon monoxide to carry out condensation process, so that the liquefied mixture obtained containing carbonyl nickel and carbonyl iron and the first carbon monoxide; Rectifier unit, described rectifier unit has liquefied mixture entrance and the outlet of gaseous state carbonyl nickel, described liquefied mixture entrance exports with described liquefied mixture and is connected, and is suitable for the described liquefied mixture containing carbonyl nickel and carbonyl iron to carry out rectification process, to obtain gaseous state carbonyl nickel; And decomposer, described decomposer has gaseous state carbonyl nickel entrance, carbonyl nickel powder outlet and the outlet of the second carbon monoxide, described gaseous state carbonyl nickel entrance is connected with described gaseous state carbonyl nickel outlet, and be suitable for described gaseous state carbonyl nickel to carry out resolution process, to obtain carbonyl nickel powder and the second carbon monoxide respectively.Inventor finds, by carrying out melt processed by after dilval and the mixing of sulfur-bearing solid compounds, the sulphur in sulfur-bearing solid compounds can be made to enter activated ni in ferronickel melt, namely highly active ferronickel melt is obtained, granulate by carrying out atomization to gained ferronickel melt simultaneously, the contact area of itself and carbon monoxide can be significantly improved, thus itself and carbon monoxide are directly contacted can react generation carbonyls, and carbonyls synthetic ratio is higher, compared with prior art, the utility model does not need to add catalyst in carbonyls building-up process, thus shorten technological process, secondly adopt dilval as the raw material preparing carbonyl nickel powder, the more existing raw copper nickel alloy preparing carbonyl nickel powder is compared, dilval has lower cost, thus while improving dilval value, reduce the production cost of carbonyl nickel powder, and directly apply to STEELMAKING PRODUCTION compared to by dilval, dilval is had higher economic benefit for the preparation of carbonyl nickel powder by the utility model, this entire system technique is simple in addition, convenient operation, large-scale production can be realized.
The system utilizing dilval to prepare carbonyl nickel powder below with reference to Fig. 1-3 pairs of the utility model embodiments is described in detail.According to embodiment of the present utility model, this system comprises:
Melting appartus 100: according to embodiment of the present utility model, melting appartus 100 has dilval entrance 101, sulfur-bearing solid compounds entrance 102 and ferronickel melt outlet 103, and be suitable for carrying out melt processed by after dilval and the mixing of sulfur-bearing solid compounds, thus ferronickel melt can be obtained.Inventor finds, the sulphur in sulfur-bearing solid compounds can be made to enter activated ni in ferronickel melt by melt processed, namely highly active ferronickel melt is obtained, thus significantly improve carbonyls reaction rate, and carbonyls synthetic ratio is higher, compared with prior art, the utility model does not need to add catalyst in carbonyls building-up process, thus shortens technological process.
According to an embodiment of the present utility model, in dilval nickel and iron concrete content and be not particularly limited, those skilled in the art can select according to actual needs, according to specific embodiment of the utility model, dilval nickel content can be 10 ~ 45wt%, and iron content can be 60 ~ 80wt%.Inventor finds, in order to obtain highly purified carbonyl nickel powder in existing preparation technology, usually the copper nickel adopting nickel content higher is needed, cause raw material production cost higher, not easily purchase, and the utility model is lower to nickel grade requirement threshold in raw material, although the grade of nickel is lower in dilval, but adopt method of the present utility model still can prepare highly purified carbonyl nickel powder (nickel content is higher than more than 99%), thus reduce the production cost of carbonyl nickel powder while widening raw material sources.
According to another embodiment of the present utility model, sulfur content in ferronickel melt is also not particularly limited, those skilled in the art can select according to actual needs, and according to specific embodiment of the utility model, in ferronickel melt, sulfur content can account for 0.5 ~ 3% of ferronickel melt gross mass.Inventor finds, in ferronickel melt, sulfur content is higher, make gained dilval seed activity higher, thus be more conducive to carrying out fast of carbonyl nickel synthetic reaction, and carbonyl nickel synthetic ratio is also higher, comparatively prior art adds gaseous state sulfur-bearing thing and compares as catalyst in carbonyl nickel synthesis step, the utility model does not need additionally to add catalyst, thus shorten preparation technology's flow process, but sulfur content is too high in ferronickel melt, improve not obvious to dilval seed activity, and the concentration adding nickel in membership dilution ferronickel melt of excessive sulfur-bearing solid compounds, also can cause sulfur-bearing wastage of material simultaneously, improve production cost.
According to another embodiment of the present utility model, the condition of melt processed is also not particularly limited, and those skilled in the art can select according to actual needs, and according to specific embodiment of the utility model, melt processed can be carried out at 1400 ~ 1600 DEG C.Thus, can make the sulphur in sulfur-bearing solid compounds dispersed to ferronickel melt activated ni, namely obtain highly active ferronickel melt, thus further improve follow-up carbonyls synthetic ratio.
According to another embodiment of the present utility model, the concrete kind of sulfur-bearing solid compounds is also not particularly limited, those skilled in the art can select according to actual needs, and according to specific embodiment of the utility model, sulfur-bearing solid compounds can be sulphur iron.Thus, can effective activation ferronickel melt, thus improve follow-up carbonyls synthetic ratio further, and sulphur iron material cost is lower.
According to another embodiment of the present utility model, dilval can obtain by reducing-melt divisional processing to lateritic nickel ore.Concrete, first just lateritic nickel ore, coal and additive carry out mixed pelletizing, obtain mixing pelletizing, then this mixing pelletizing is carried out reduction treatment in rotary kiln or rotary hearth furnace, obtain metallized pellet, then divide stove to carry out molten divisional processing in electric arc furnaces, mineral hot furnace or non-electric smelting this metallized pellet, obtain dilval and tailings.Inventor finds, adopt lateritic nickel ore as the raw material preparing dilval, although the grade of nickel is lower in lateritic nickel ore, but adopt method of the present utility model still can prepare highly purified carbonyl nickel powder (nickel content is higher than more than 99%), thus reduce the production cost of carbonyl nickel powder while widening raw material sources.
Atomization granulation device 200: according to embodiment of the present utility model, atomization granulation device 200 has ferronickel melt inlet 201 and dilval particle outlet 202, ferronickel melt inlet 201 is connected with ferronickel melt outlet 103, and be suitable for ferronickel melt to carry out atomization pelletization treatment, thus dilval particle can be obtained.Inventor finds; granulate by carrying out atomization to gained ferronickel melt; the contact area of itself and carbon monoxide can be significantly improved; and gained dilval seed activity is higher; thus itself and carbon monoxide are directly contacted can react generation carbonyls, and carbonyls synthetic ratio is higher.In this step, concrete, atomization pelletization utilizes High-Pressure Water or inert gas to be smashed by ferronickel melt in atomizer to become fine droplet, the dilval particle meeting dimensional requirement is obtained again after cooling, oven dry, screening, atomization mechanism is when High-Pressure Water or inert gas impact ferronickel melt, by the surface energy that kinetic transformation is ferronickel melt, form numerous fine particle.
According to an embodiment of the present utility model, dilval grain diameter is also not particularly limited, and those skilled in the art can select according to actual needs, and according to specific embodiment of the utility model, the particle diameter of dilval particle is not more than 0.5 millimeter.Inventor finds, the dilval seed activity of this particle size range is higher, and comparatively large with carbon monoxide contact area in carbonyl nickel synthetic process, thus can significantly improve the synthetic ratio of carbonyl nickel.
Carbonylation synthesis device 300: according to embodiment of the present utility model, carbonylation synthesis device 300 has carbon monoxide inlet 301, dilval particle entrance 302, gaseous mixture outlet 303 and iron powder outlet 304, dilval particle entrance 302 is connected with dilval particle outlet 202, and be suitable for above-mentioned gained dilval particle to contact with carbon monoxide, thus the gaseous mixture that can obtain containing carbonyl nickel, carbonyl iron and carbon monoxide and iron powder.Inventor finds, adopt highly active dilval particle directly to contact with carbon monoxide and can react generation carbonyls, and carbonyls synthetic ratio is higher, compared with prior art, the utility model does not need to add catalyst in carbonyls building-up process, thus shortens technological process.
According to an embodiment of the present utility model, dilval particle and reaction of carbon monoxide condition are also not particularly limited, those skilled in the art can select according to actual needs, according to specific embodiment of the utility model, dilval particle contacts with carbon monoxide and can carry out 24 ~ 48 hours under the condition of 100 ~ 200 degrees Celsius and 5 ~ 15MPa.Thus, adopt this condition can significantly improve the synthetic ratio of carbonyl nickel, and the synthetic ratio of gained carbonyl nickel is up to more than 95%.
According to another embodiment of the present utility model, dilval particle to contact with carbon monoxide thing and can carry out in carbonylation synthesis device, and the volume content of carbon monoxide is not less than 90% of carbonylation synthesis device cumulative volume.Inventor finds, generating the reaction of carbonyls is reversible reaction, and adds the chemical balance that excessive carbon monoxide makes to react and move to the direction generating carbonyls, thus improves carbonyls synthetic ratio further.
Condensing unit 400: according to embodiment of the present utility model, condensing unit 400 has gaseous mixture entrance 401, liquefied mixture outlet 402 and the first carbon monoxide outlet 403, gaseous mixture entrance 401 and gaseous mixture export 303 and are connected, and be suitable for the gaseous mixture containing carbonyl nickel, carbonyl iron and carbon monoxide obtained above to carry out condensation process, thus the liquefied mixture that can obtain containing carbonyl nickel and carbonyl iron and the first carbon monoxide.Thus, the carbonyl nickel in the gaseous mixture containing carbonyl nickel, carbonyl iron and carbon monoxide and carbonyl iron condensation can be made to become liquid by condensation process, carbon monoxide wherein then exists in gaseous form, thus realizes the separation of carbon monoxide.It should be noted that, those skilled in the art can select the condition of condensation process according to actual needs.
Rectifier unit 500: according to embodiment of the present utility model, rectifier unit 500 has liquefied mixture entrance 501 and gaseous state carbonyl nickel outlet 502, liquefied mixture entrance 501 and liquefied mixture export 402 and are connected, and be suitable for the liquefied mixture containing carbonyl nickel and carbonyl iron obtained above to carry out rectification process, thus gaseous state carbonyl nickel can be obtained.Thus, being separated both realizing according to carbonyl nickel and carbonyl iron boiling point difference, and separating obtained gaseous state carbonyl nickel has higher purity.It should be noted that, those skilled in the art can select the actual conditions of rectifying according to actual needs.
Decomposer 600: according to embodiment of the present utility model, decomposer 600 has gaseous state carbonyl nickel entrance 601, carbonyl nickel powder outlet 602 and the second carbon monoxide outlet 603, gaseous state carbonyl nickel entrance 601 is connected with gaseous state carbonyl nickel outlet 502, and be suitable for gaseous state carbonyl nickel to carry out resolution process, thus carbonyl nickel powder and the second carbon monoxide can be obtained respectively.Concrete, carbonyl nickel is unstable, can be decomposed into rapidly carbonyl nickel powder and carbon monoxide, thus can obtain highly purified carbonyl nickel powder (nickel content is higher than 99wt%) when heating.
According to an embodiment of the present utility model, the condition of resolution process is also not particularly limited, those skilled in the art can select according to actual needs, according to specific embodiment of the utility model, resolution process can be carried out under the condition of 230 ~ 300 degrees Celsius and 0.01 ~ 0.05MPa.Inventor finds, this decomposition condition significantly can be better than the decomposition efficiency that other improve carbonyl nickel, thus can obtain highly purified carbonyl nickel powder.
The dilval that utilizes according to the utility model embodiment prepares the system of carbonyl nickel powder by carrying out melt processed by after dilval and the mixing of sulfur-bearing solid compounds, the sulphur in sulfur-bearing solid compounds can be made to enter activated ni in ferronickel melt, namely highly active ferronickel melt is obtained, granulate by carrying out atomization to gained ferronickel melt simultaneously, the contact area of itself and carbon monoxide can be significantly improved, thus itself and carbon monoxide are directly contacted can react generation carbonyls, and carbonyls synthetic ratio is higher, compared with prior art, the utility model does not need to add catalyst in carbonyls building-up process, thus shorten technological process, secondly adopt dilval as the raw material preparing carbonyl nickel powder, the more existing raw copper nickel alloy preparing carbonyl nickel powder is compared, dilval has lower cost, thus while improving dilval value, reduce the production cost of carbonyl nickel powder, and directly apply to STEELMAKING PRODUCTION compared to by dilval, dilval is had higher economic benefit for the preparation of carbonyl nickel powder by the utility model, this entire system technique is simple in addition, convenient operation, large-scale production can be realized.
With reference to figure 2, according to an embodiment of the present utility model, first carbon monoxide outlet 403 is connected with carbon monoxide inlet 301, and be suitable for condensing unit gained first carbon monoxide being back to carbonylation synthesis device 300 and dilval particle contacts, thus carbon monoxide cycle utilization rate can be significantly improved.
With reference to figure 3, according to another embodiment of the present utility model, second carbon monoxide outlet 603 is connected with carbon monoxide inlet 301, and be suitable for decomposer gained second carbon monoxide being back to carbonylation synthesis device 300 and dilval particle contacts, thus carbon monoxide cycle utilization rate can be significantly improved.
In one of the present utility model, the utility model proposes a kind of method utilizing dilval to prepare carbonyl nickel powder.According to embodiment of the present utility model, the method comprises: (1) carries out melt processed, to obtain ferronickel melt by after described dilval and the mixing of sulfur-bearing solid compounds; (2) described ferronickel melt is carried out atomization pelletization treatment, to obtain dilval particle; (3) described dilval particle is contacted with carbon monoxide, so that the gaseous mixture obtained containing carbonyl nickel, carbonyl iron and carbon monoxide and iron powder; (4) the described gaseous mixture containing carbonyl nickel, carbonyl iron and carbon monoxide is carried out condensation process, so that the liquefied mixture obtained containing carbonyl nickel and carbonyl iron and the first carbon monoxide; (5) the described liquefied mixture containing carbonyl nickel and carbonyl iron is carried out rectification process, to obtain gaseous state carbonyl nickel; And described gaseous state carbonyl nickel is carried out resolution process by (6), to obtain carbonyl nickel powder and the second carbon monoxide respectively.Inventor finds, by carrying out melt processed by after dilval and the mixing of sulfur-bearing solid compounds, the sulphur in sulfur-bearing solid compounds can be made to enter activated ni in ferronickel melt, namely highly active ferronickel melt is obtained, granulate by carrying out atomization to gained ferronickel melt simultaneously, the contact area of itself and carbon monoxide can be significantly improved, thus itself and carbon monoxide are directly contacted can react generation carbonyls, and carbonyls synthetic ratio is higher, compared with prior art, the utility model does not need to add catalyst in carbonyls building-up process, thus shorten technological process, secondly adopt dilval as the raw material preparing carbonyl nickel powder, the more existing raw copper nickel alloy preparing carbonyl nickel powder is compared, dilval has lower cost, thus while improving dilval value, reduce the production cost of carbonyl nickel powder, and directly apply to STEELMAKING PRODUCTION compared to by dilval, dilval is had higher economic benefit for the preparation of carbonyl nickel powder by the utility model, the method integrated artistic is simple in addition, convenient operation, large-scale production can be realized.
Conveniently understand, below with reference to Fig. 4-6, the method adopting the System Implementation utilizing dilval to prepare carbonyl nickel powder of the utility model embodiment to utilize dilval to prepare carbonyl nickel powder is described in detail.According to embodiment of the present utility model, the method comprises:
S100: carry out melt processed by after dilval and the mixing of sulfur-bearing solid compounds
According to embodiment of the present utility model, carry out melt processed by after dilval and the mixing of sulfur-bearing solid compounds, thus ferronickel melt can be obtained.Inventor finds, the sulphur in sulfur-bearing solid compounds can be made to enter activated ni in ferronickel melt by melt processed, namely highly active ferronickel melt is obtained, thus significantly improve carbonyls reaction rate, and carbonyls synthetic ratio is higher, compared with prior art, the utility model does not need to add catalyst in carbonyls building-up process, thus shortens technological process.
According to an embodiment of the present utility model, in dilval nickel and iron concrete content and be not particularly limited, those skilled in the art can select according to actual needs, according to specific embodiment of the utility model, dilval nickel content can be 10 ~ 45wt%, and iron content can be 60 ~ 80wt%.Inventor finds, in order to obtain highly purified carbonyl nickel powder in existing preparation technology, usually the copper nickel adopting nickel content higher is needed, cause raw material production cost higher, not easily purchase, and the utility model is lower to nickel grade requirement threshold in raw material, although the grade of nickel is lower in dilval, but adopt method of the present utility model still can prepare highly purified carbonyl nickel powder (nickel content is higher than more than 99%), thus reduce the production cost of carbonyl nickel powder while widening raw material sources.
According to another embodiment of the present utility model, sulfur content in ferronickel melt is also not particularly limited, those skilled in the art can select according to actual needs, and according to specific embodiment of the utility model, in ferronickel melt, sulfur content can account for 0.5 ~ 3% of ferronickel melt gross mass.Inventor finds, in ferronickel melt, sulfur content is higher, make gained dilval seed activity higher, thus be more conducive to carrying out fast of carbonyl nickel synthetic reaction, and carbonyl nickel synthetic ratio is also higher, comparatively prior art adds gaseous state sulfur-bearing thing and compares as catalyst in carbonyl nickel synthesis step, the utility model does not need additionally to add catalyst, thus shorten preparation technology's flow process, but sulfur content is too high in ferronickel melt, improve not obvious to dilval seed activity, and the concentration adding nickel in membership dilution ferronickel melt of excessive sulfur-bearing solid compounds, also can cause sulfur-bearing wastage of material simultaneously, improve production cost.
According to another embodiment of the present utility model, the condition of melt processed is also not particularly limited, and those skilled in the art can select according to actual needs, and according to specific embodiment of the utility model, melt processed can be carried out at 1400 ~ 1600 DEG C.Thus, can make the sulphur in sulfur-bearing solid compounds dispersed to ferronickel melt activated ni, namely obtain highly active ferronickel melt, thus further improve follow-up carbonyls synthetic ratio.
According to another embodiment of the present utility model, the concrete kind of sulfur-bearing solid compounds is also not particularly limited, those skilled in the art can select according to actual needs, and according to specific embodiment of the utility model, sulfur-bearing solid compounds can be sulphur iron.Thus, can effective activation ferronickel melt, thus improve follow-up carbonyls synthetic ratio further, and sulphur iron material cost is lower.
According to another embodiment of the present utility model, dilval can obtain by reducing-melt divisional processing to lateritic nickel ore.Concrete, first just lateritic nickel ore, coal and additive carry out mixed pelletizing, obtain mixing pelletizing, then this mixing pelletizing is carried out reduction treatment in rotary kiln or rotary hearth furnace, obtain metallized pellet, then divide stove to carry out molten divisional processing in electric arc furnaces, mineral hot furnace or non-electric smelting this metallized pellet, obtain dilval and tailings.Inventor finds, adopt lateritic nickel ore as the raw material preparing dilval, although the grade of nickel is lower in lateritic nickel ore, but adopt method of the present utility model still can prepare highly purified carbonyl nickel powder (nickel content is higher than more than 99%), thus reduce the production cost of carbonyl nickel powder while widening raw material sources.
S200: ferronickel melt is carried out atomization pelletization treatment
According to embodiment of the present utility model, ferronickel melt is carried out atomization pelletization treatment, thus dilval particle can be obtained.Inventor finds; granulate by carrying out atomization to gained ferronickel melt; the contact area of itself and carbon monoxide can be significantly improved; and gained dilval seed activity is higher; thus itself and carbon monoxide are directly contacted can react generation carbonyls, and carbonyls synthetic ratio is higher.In this step, concrete, atomization pelletization utilizes High-Pressure Water or inert gas to be smashed by ferronickel melt in atomizer to become fine droplet, the dilval particle meeting dimensional requirement is obtained again after cooling, oven dry, screening, atomization mechanism is when High-Pressure Water or inert gas impact ferronickel melt, by the surface energy that kinetic transformation is ferronickel melt, form numerous fine particle.
According to an embodiment of the present utility model, dilval grain diameter is also not particularly limited, and those skilled in the art can select according to actual needs, and according to specific embodiment of the utility model, the particle diameter of dilval particle is not more than 0.5 millimeter.Inventor finds, the dilval seed activity of this particle size range is higher, and comparatively large with carbon monoxide contact area in carbonyl nickel synthetic process, thus can significantly improve the synthetic ratio of carbonyl nickel.
S300: dilval particle is contacted with carbon monoxide
According to embodiment of the present utility model, above-mentioned gained dilval particle is contacted with carbon monoxide, thus the gaseous mixture that can obtain containing carbonyl nickel, carbonyl iron and carbon monoxide and iron powder.Inventor finds, adopt highly active dilval particle directly to contact with carbon monoxide and can react generation carbonyls, and carbonyls synthetic ratio is higher, compared with prior art, the utility model does not need to add catalyst in carbonyls building-up process, thus shortens technological process.
According to an embodiment of the present utility model, dilval particle and reaction of carbon monoxide condition are also not particularly limited, those skilled in the art can select according to actual needs, according to specific embodiment of the utility model, dilval particle contacts with carbon monoxide and can carry out 24 ~ 48 hours under the condition of 100 ~ 200 degrees Celsius and 5 ~ 15MPa.Thus, adopt this condition can significantly improve the synthetic ratio of carbonyl nickel, and the synthetic ratio of gained carbonyl nickel is up to more than 95%.
According to another embodiment of the present utility model, dilval particle to contact with carbon monoxide thing and can carry out in carbonylation synthesis device, and the volume content of carbon monoxide is not less than 90% of carbonylation synthesis device cumulative volume.Inventor finds, generating the reaction of carbonyls is reversible reaction, and adds the chemical balance that excessive carbon monoxide makes to react and move to the direction generating carbonyls, thus improves carbonyls synthetic ratio further.
S400: the gaseous mixture containing carbonyl nickel, carbonyl iron and carbon monoxide is carried out condensation process
According to embodiment of the present utility model, the gaseous mixture containing carbonyl nickel, carbonyl iron and carbon monoxide obtained above is carried out condensation process, thus the liquefied mixture that can obtain containing carbonyl nickel and carbonyl iron and the first carbon monoxide.Thus, the carbonyl nickel in the gaseous mixture containing carbonyl nickel, carbonyl iron and carbon monoxide and carbonyl iron condensation can be made to become liquid by condensation process, carbon monoxide wherein then exists in gaseous form, thus realizes the separation of carbon monoxide.It should be noted that, those skilled in the art can select the condition of condensation process according to actual needs.
S500: the liquefied mixture containing carbonyl nickel and carbonyl iron is carried out rectification process
According to embodiment of the present utility model, the liquefied mixture containing carbonyl nickel and carbonyl iron obtained above is carried out rectification process, thus gaseous state carbonyl nickel can be obtained.Thus, being separated both realizing according to carbonyl nickel and carbonyl iron boiling point difference, and separating obtained gaseous state carbonyl nickel has higher purity.It should be noted that, those skilled in the art can select the actual conditions of rectifying according to actual needs.
S600: gaseous state carbonyl nickel is carried out resolution process
According to embodiment of the present utility model, gaseous state carbonyl nickel is carried out resolution process, thus carbonyl nickel powder and the second carbon monoxide can be obtained respectively.Concrete, carbonyl nickel is unstable, can be decomposed into rapidly carbonyl nickel powder and carbon monoxide, thus can obtain highly purified carbonyl nickel powder (nickel content is higher than 99wt%) when heating.
According to an embodiment of the present utility model, the condition of resolution process is also not particularly limited, those skilled in the art can select according to actual needs, according to specific embodiment of the utility model, resolution process can be carried out under the condition of 230 ~ 300 degrees Celsius and 0.01 ~ 0.05MPa.Inventor finds, this decomposition condition significantly can be better than the decomposition efficiency that other improve carbonyl nickel, thus can obtain highly purified carbonyl nickel powder.
Dilval is utilized to prepare the method for carbonyl nickel powder by carrying out melt processed by after dilval and the mixing of sulfur-bearing solid compounds according to the System Implementation utilizing dilval to prepare carbonyl nickel powder of the utility model embodiment, the sulphur in sulfur-bearing solid compounds can be made to enter activated ni in ferronickel melt, namely highly active ferronickel melt is obtained, granulate by carrying out atomization to gained ferronickel melt simultaneously, the contact area of itself and carbon monoxide can be significantly improved, thus itself and carbon monoxide are directly contacted can react generation carbonyls, and carbonyls synthetic ratio is higher, compared with prior art, the utility model does not need to add catalyst in carbonyls building-up process, thus shorten technological process, secondly adopt dilval as the raw material preparing carbonyl nickel powder, the more existing raw copper nickel alloy preparing carbonyl nickel powder is compared, dilval has lower cost, thus while improving dilval value, reduce the production cost of carbonyl nickel powder, and directly apply to STEELMAKING PRODUCTION compared to by dilval, dilval is had higher economic benefit for the preparation of carbonyl nickel powder by the utility model, the method integrated artistic is simple in addition, convenient operation, large-scale production can be realized.
With reference to figure 5, comprise further according to the method that the System Implementation utilizing dilval to prepare carbonyl nickel powder of the utility model embodiment utilizes dilval to prepare carbonyl nickel powder:
S700: the first carbon monoxide is returned S300 and dilval particle contacts.
According to embodiment of the present utility model, condensation process gained first carbon monoxide is back to S300 and dilval particle contacts, thus carbon monoxide cycle utilization rate can be significantly improved.
With reference to figure 6, comprise further according to the method that the System Implementation utilizing dilval to prepare carbonyl nickel powder of the utility model embodiment utilizes dilval to prepare carbonyl nickel powder:
S800: the second carbon monoxide is returned S300 and dilval particle contacts
According to embodiment of the present utility model, resolution process gained second carbon monoxide is back to S300 and dilval particle contacts, thus improves carbon monoxide cycle utilization rate further.
Below with reference to specific embodiment, be described the utility model, it should be noted that, these embodiments are only descriptive, and limit the utility model never in any form.
Embodiment 1
Melt processed is carried out after getting the dilval of table 1 composition and the mixing of sulphur iron, obtain ferronickel melt (in ferronickel melt, sulfur content is 0.5wt%), then gained ferronickel melt is carried out atomization pelletization treatment, obtain the dilval particle of average grain diameter 0.2 millimeter, then dilval particle and CO counter current contacting generation oxonation are generated containing carbonyl nickel, the gaseous mixture of carbonyl iron and carbon monoxide, carbonylation conditions is: pressure 7.5MPa, temperature 185 DEG C, time 35h, CO gas concentration 90.5%, then will containing carbonyl nickel, the gaseous mixture of carbonyl iron and carbon monoxide is delivered to condensation process in condenser, obtain the liquefied mixture containing carbonyl nickel and carbonyl iron and carbon monoxide, carbon monoxide is returned carbonylation synthesis device to continue to use, and the liquefied mixture containing carbonyl nickel and carbonyl iron obtained is sent into rectifying column again and carry out rectifying and obtain high-purity gaseous state carbonyl nickel, finally gaseous state carbonyl nickel is sent into decomposer to carry out decomposing and obtain high purity nickel (major impurity is C and Fe) that nickel grade is 99.82wt% and carbon monoxide, wherein carbon monoxide returns carbonylation synthesis device continuation use.
Embodiment 2
Melt processed is carried out after getting the dilval of table 1 composition and the mixing of sulphur iron, obtain ferronickel melt (in ferronickel melt, sulfur content is 1.5wt%), then gained ferronickel melt is carried out atomization pelletization treatment, obtain the dilval particle of average grain diameter 0.5 millimeter, then dilval particle and CO counter current contacting generation oxonation are generated containing carbonyl nickel, the gaseous mixture of carbonyl iron and carbon monoxide, carbonylation conditions is: pressure 12.5MPa, temperature 135 DEG C, time 46h, CO gas concentration 92%, then will containing carbonyl nickel, the gaseous mixture of carbonyl iron and carbon monoxide is delivered to condensation process in condenser, obtain the liquefied mixture containing carbonyl nickel and carbonyl iron and carbon monoxide, gained carbon monoxide is returned carbonylation synthesis device to continue to use, and the liquefied mixture containing carbonyl nickel and carbonyl iron obtained is sent into rectifying column again and carry out rectifying and obtain high-purity gaseous state carbonyl nickel, finally gaseous state carbonyl nickel is sent into decomposer to carry out decomposing and obtain high purity nickel (major impurity is C and Fe) that nickel grade is 99.54wt% and carbon monoxide, wherein carbon monoxide returns carbonylation synthesis device continuation use.
Embodiment 3
Melt processed is carried out after getting the dilval of table 1 composition and the mixing of sulphur iron, obtain ferronickel melt (in ferronickel melt, sulfur content is 3wt%), then gained ferronickel melt is carried out atomization pelletization treatment, obtain the dilval particle of average grain diameter 0.35 millimeter, then dilval particle and CO counter current contacting generation oxonation are generated containing carbonyl nickel, the gaseous mixture of carbonyl iron and carbon monoxide, carbonylation conditions is: pressure 15MPa, temperature 155 DEG C, time 29h, CO gas concentration 90%, then will containing carbonyl nickel, the gaseous mixture of carbonyl iron and carbon monoxide is delivered to condensation process in condenser, obtain the liquefied mixture containing carbonyl nickel and carbonyl iron and carbon monoxide, carbon monoxide is returned carbonylation synthesis device to continue to use, and the liquefied mixture containing carbonyl nickel and carbonyl iron obtained is sent into rectifying column again and carry out rectifying and obtain high-purity gaseous state carbonyl nickel, finally gaseous state carbonyl nickel is sent into decomposer to carry out decomposing and obtain high purity nickel (major impurity is C and Fe) that nickel grade is 99.82wt% and carbon monoxide, wherein carbon monoxide returns carbonylation synthesis device continuation use.
Table 1 embodiment 1 ~ 3 dilval main component, wt.%
| Embodiment | TFe | Ni | Co | S | Si | Cr | Mn | P | C |
| 1 | 85.99 | 12.57 | 0.93 | 0.17 | 0.01 | 0.06 | 0.01 | 0.05 | 0.04 |
| 2 | 78.19 | 20.28 | 0.63 | 0.14 | 0.35 | 0.08 | 0.01 | 0.04 | 0.11 |
| 3 | 53.15 | 44.19 | 0.60 | 0.10 | 0.19 | 0.09 | 0.037 | 0.03 | 0.08 |
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (3)
1. utilize dilval to prepare a system for carbonyl nickel powder, it is characterized in that, comprising:
Melting appartus, described melting appartus has dilval entrance, sulfur-bearing solid compounds entrance and ferronickel melt outlet;
Atomization granulation device, described atomization granulation device has ferronickel melt inlet and dilval particle outlet, and described ferronickel melt inlet is connected with described ferronickel melt outlet;
Carbonylation synthesis device, described carbonylation synthesis device has carbon monoxide inlet, dilval particle entrance, gaseous mixture outlet and iron powder outlet, and described dilval particle entrance is connected with described dilval particle outlet;
Condensing unit, described condensing unit has gaseous mixture entrance, liquefied mixture outlet and the outlet of the first carbon monoxide, and described gaseous mixture entrance exports with described gaseous mixture and is connected;
Rectifier unit, described rectifier unit has liquefied mixture entrance and the outlet of gaseous state carbonyl nickel, and described liquefied mixture entrance exports with described liquefied mixture and is connected; And
Decomposer, described decomposer has gaseous state carbonyl nickel entrance, carbonyl nickel powder outlet and the outlet of the second carbon monoxide, and described gaseous state carbonyl nickel entrance is connected with described gaseous state carbonyl nickel outlet.
2. the system utilizing dilval to prepare carbonyl nickel powder according to claim 1, is characterized in that, described first carbon monoxide outlet is connected with described carbon monoxide inlet.
3. the system utilizing dilval to prepare carbonyl nickel powder according to claim 1, is characterized in that, described second carbon monoxide outlet is connected with described carbon monoxide inlet.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105170989A (en) * | 2015-08-12 | 2015-12-23 | 北京神雾环境能源科技集团股份有限公司 | Method and system for preparing nickel carbonyl powder through nickel-iron alloy |
| CN108996556A (en) * | 2018-08-06 | 2018-12-14 | 金川集团股份有限公司 | A kind of raw material of synthesizing carbonyl nickel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105170989A (en) * | 2015-08-12 | 2015-12-23 | 北京神雾环境能源科技集团股份有限公司 | Method and system for preparing nickel carbonyl powder through nickel-iron alloy |
| CN108996556A (en) * | 2018-08-06 | 2018-12-14 | 金川集团股份有限公司 | A kind of raw material of synthesizing carbonyl nickel |
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