CN108996553A - A kind of deep processing treatment system and processing method of the thick ferronickel of laterite pyrometallurgical smelting product - Google Patents
A kind of deep processing treatment system and processing method of the thick ferronickel of laterite pyrometallurgical smelting product Download PDFInfo
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- CN108996553A CN108996553A CN201810887574.3A CN201810887574A CN108996553A CN 108996553 A CN108996553 A CN 108996553A CN 201810887574 A CN201810887574 A CN 201810887574A CN 108996553 A CN108996553 A CN 108996553A
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- Prior art keywords
- carbonylation
- decomposer
- rectifier unit
- nickel
- laterite
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/16—Carbonyls
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/02—Carbonyls
Abstract
The invention belongs to field of metallurgy, it is the deep processing treatment system and processing method of a kind of thick ferronickel of laterite pyrometallurgical smelting product, material containing ferronickel successively passes through feed bin I, ball mill, feed bin II, reduction activation furnace, belt transport unit, carbonylation device I, the carbonyl iron that carbonylation device I generates enters rectifier unit I, one time carbonylation slag enters carbonylation device II, the carbonyl nickel that carbonylation device II generates enters rectifier unit II, secondary carbonylation slag returns to carbonylation device I, the light component of rectifier unit I enters nickel decomposer production carbonyl nickel powder, heavy constituent enters iron decomposer production carbonyl iron dust, the light component of rectifier unit II enters nickel decomposer production carbonyl nickel powder, heavy constituent returns to rectifier unit I, iron decomposer, the CO that nickel decomposer generates returns to carbonylation device I, II.Effect: laterite pyrometallurgical smelting product coarse ferronickel is expanded from stainless steel smelting field to vapometallurgy field.
Description
Technical field
The invention belongs to field of powder metallurgy, are related to the refining of nickel, and in particular to a kind of laterite pyrometallurgical smelting product is thick
The deep processing treatment system and method for ferronickel.
Background technique
In recent years, global nickel sulfide ore mine continues to increase exploitation dynamics, and vulcanization nickel resources is made to face exhaustion, economical to meet
Develop the demand to nickel, the emphasis of development of resources is aimed at the laterite ore resources of rich reserves by global nickel industry, currently, it is handled
There are two big process flows, i.e. thermal process and wet processing.Wherein, thermal process production capacity is big, and product purpose is single, almost all
For the smelting of low side stainless steel, production capacity has been approached saturation.Carbonylation metallurgical technology has the technological merits such as selective reaction, can be with
Effectively ferronickel is separated with other metals, but the product ferronickel that existing ferronickel is supplied in the market is than great, synthesizing carbonyl nickel, carbonyl
The reaction rate of base iron is slow, or even does not react.
Summary of the invention
The purpose of the present invention is to solve above-mentioned ferronickel synthesis efficiency is low or even nonreactive problem, one kind is provided
The deep processing treatment system and method for thick ferronickel.
In order to achieve the above object, the invention adopts the following technical scheme: a kind of thick ferronickel of laterite pyrometallurgical smelting product
Deep processing treatment system, including feed bin I, ball mill, feed bin II, reduction activation furnace, belt transport unit, carbonylation device
I, carbonylation device II, rectifier unit I, rectifier unit II, nickel decomposer, iron decomposer；Material successively passes through feed bin I, ball
Enter reduction activation furnace after grinding machine, feed bin II, carbonylation is delivered to by belt transport unit by the material that reduction activation furnace is handled
Synthesizer I, the one outlet of carbonylation device I correspond to I entrance of rectifier unit, the corresponding carbonylation device in another outlet
II entrance, the one outlet of rectifier unit I correspond to iron decomposer entrance, the corresponding nickel decomposer entrance in another outlet, and iron decomposes
Device has material outlet and gas vent, and gas vent is connected to by pipeline with carbonylation device I, and the one of carbonylation device II
A material outlet is corresponding with I entrance of carbonylation device, the feeding inlet of the corresponding rectifier unit II of another material outlet, rectifying
The one outlet of device II corresponds to nickel decomposer entrance, another outlet is connected to I entrance of rectifier unit, and nickel decomposer passes through pipe
Road is connected to carbonylation device II.
A kind of deep processing processing method of the thick ferronickel of laterite pyrometallurgical smelting product, material containing ferronickel are entered by feed bin I
Ball mill enters feed bin II after ball milling, after the processing of reduction activation furnace, enters carbonylation by belt transport unit and closes
At device I, I synthetic of carbonylation device has carbonyl iron, a carbonylation slag, and carbonyl iron enters subsequent rectifier unit I, a carbonyl
Slugging enters carbonylation device II, and carbonylation device II generates carbonyl nickel, secondary carbonylation slag, and carbonyl nickel enters subsequent rectifying
Device II, secondary carbonylation slag return to carbonylation device I, and treated that light component enters nickel decomposer production carbonyl for rectifier unit I
Base nickel powder, treated heavy constituent the enters iron decomposer production carbonyl iron dust of rectifier unit I, rectifier unit II treated light group
Point entering nickel decomposer produces carbonyl nickel powder, and treated the heavy constituent of rectifier unit II returns to rectifier unit I, iron decomposer, nickel
The CO that decomposer generates returns to carbonylation device I or carbonylation device II.
Preferably: the material size after ball mill grinding is in 2mm feeding reduction activation furnace below.
It is H that the reduction activation furnace, which is passed through,2S gas, gas are passed through flow and are adjusted according to inventory.
The reduction activation furnace temperature control range is 300 DEG C -600 DEG C.
I temperature controlling range of carbonylation device is 200 DEG C -300 DEG C, and pressure control range is 8Mpa -
10Mpa。
II temperature controlling range of carbonylation device is 200 DEG C -300 DEG C, and pressure control range is 8Mpa -
12Mpa。
The I bottom temp control range of rectifier unit is 20 DEG C -70 DEG C.
II temperature controlling range of rectifier unit is 20 DEG C -50 DEG C.
The present invention is had the advantages that compared with the prior art by laterite pyrometallurgical smelting product coarse ferronickel from stainless steel
Field of smelting expands the serial carbonyl such as the carbonyl iron dust for making it rapidly go to high added value to vapometallurgy field, carbonyl nickel powder
Nickel product, and the recyclable recycling of CO, carbonylation slag generated in the process, it is environmentally friendly.
Detailed description of the invention
Fig. 1 is equipment connection and process diagram of the invention.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples.
Such as figure, a kind of deep processing treatment system of the thick ferronickel of laterite pyrometallurgical smelting product, including feed bin I, ball mill, material
Storehouse II, reduction activation furnace, belt transport unit, carbonylation device I, carbonylation device II, rectifier unit I, rectifier unit
II, nickel decomposer, iron decomposer；Material successively enters reduction activation furnace after feed bin I, ball mill, feed bin II, by reduction
The material of activation furnace processing is delivered to carbonylation device I by belt transport unit, and the one outlet of carbonylation device I is corresponding
I entrance of rectifier unit, corresponding II entrance of carbonylation device in another outlet, the one outlet of rectifier unit I correspond to iron decomposition
Device entrance, the corresponding nickel decomposer entrance in another outlet, iron decomposer have material outlet and gas vent, and gas vent passes through pipe
Road is connected to carbonylation device I, a material outlet of carbonylation device II is corresponding with I entrance of carbonylation device,
Another material outlet corresponds to the feeding inlet of rectifier unit II, and the one outlet of rectifier unit II corresponds to nickel decomposer entrance, another
One outlet is connected to I entrance of rectifier unit, and nickel decomposer is connected to by pipeline with carbonylation device II.
A kind of deep processing processing method of the thick ferronickel of laterite pyrometallurgical smelting product, material containing ferronickel are entered by feed bin I
Ball mill enters feed bin II after ball milling, after the processing of reduction activation furnace, enters carbonylation by belt transport unit and closes
At device I, I synthetic of carbonylation device has carbonyl iron, a carbonylation slag, and carbonyl iron enters subsequent rectifier unit I, a carbonyl
Slugging enters carbonylation device II, and carbonylation device II generates carbonyl nickel, secondary carbonylation slag, and carbonyl nickel enters subsequent rectifying
Device II, secondary carbonylation slag return to carbonylation device I, and treated that light component enters nickel decomposer production carbonyl for rectifier unit I
Base nickel powder, treated heavy constituent the enters iron decomposer production carbonyl iron dust of rectifier unit I, rectifier unit II treated light group
Point entering nickel decomposer produces carbonyl nickel powder, and treated the heavy constituent of rectifier unit II returns to rectifier unit I, iron decomposer, nickel
The CO that decomposer generates returns to carbonylation device I or carbonylation device II.
1 specific embodiment of table
Claims (9)
1. a kind of deep processing treatment system of the thick ferronickel of laterite pyrometallurgical smelting product, it is characterised in that: including feed bin I, ball milling
Machine, feed bin II, reduction activation furnace, belt transport unit, carbonylation device I, carbonylation device II, rectifier unit I, rectifying
Device II, nickel decomposer, iron decomposer；Material successively enters reduction activation furnace after feed bin I, ball mill, feed bin II, passes through
The material of reduction activation furnace processing is delivered to carbonylation device I, the one outlet of carbonylation device I by belt transport unit
Corresponding I entrance of rectifier unit, corresponding II entrance of carbonylation device in another outlet, the one outlet of rectifier unit I correspond to iron
Decomposer entrance, the corresponding nickel decomposer entrance in another outlet, iron decomposer have material outlet and gas vent, and gas vent is logical
Piping is connected to carbonylation device I, and a material outlet of carbonylation device II is opposite with I entrance of carbonylation device
Answer, another material outlet corresponds to the feeding inlet of rectifier unit II, the one outlet of rectifier unit II correspond to nickel decomposer entrance,
Another outlet is connected to I entrance of rectifier unit, and nickel decomposer is connected to by pipeline with carbonylation device II.
2. a kind of deep processing processing method of the thick ferronickel of laterite pyrometallurgical smelting product, it is characterised in that: material containing ferronickel passes through
Feed bin I enters feed bin II into ball mill after ball milling, after the processing of reduction activation furnace, passes through belt transport unit
Into carbonylation device I, I synthetic of carbonylation device has carbonyl iron, a carbonylation slag, and carbonyl iron is filled into subsequent rectifying
Set I, a carbonylation slag enters carbonylation device II, and carbonylation device II generates carbonyl nickel, secondary carbonylation slag, carbonyl nickel into
Enter subsequent rectifier unit II, secondary carbonylation slag returns to carbonylation device I, and treated that light component enters nickel point for rectifier unit I
It solves device and produces carbonyl nickel powder, treated heavy constituent the enters iron decomposer production carbonyl iron dust of rectifier unit I, at rectifier unit II
Light component after reason enters nickel decomposer production carbonyl nickel powder, and treated the heavy constituent of rectifier unit II returns to rectifier unit I, iron
The CO that decomposer, nickel decomposer generate returns to carbonylation device I or carbonylation device II.
3. a kind of deep processing processing method of thick ferronickel of laterite pyrometallurgical smelting product according to claim 2, feature
Be: the material size after ball mill grinding is in 2mm feeding reduction activation furnace below.
4. a kind of deep processing processing method of thick ferronickel of laterite pyrometallurgical smelting product according to claim 2, feature
Be: it is H that reduction activation furnace, which is passed through,2S gas, gas are passed through flow and are adjusted according to inventory.
5. a kind of deep processing processing method of thick ferronickel of laterite pyrometallurgical smelting product according to claim 2, feature
Be: reduction activation furnace temperature control range is 300 DEG C -600 DEG C.
6. a kind of deep processing processing method of thick ferronickel of laterite pyrometallurgical smelting product according to claim 2, feature
Be: I temperature controlling range of carbonylation device is 200 DEG C -300 DEG C, and pressure control range is 8Mpa -10Mpa.
7. a kind of deep processing processing method of thick ferronickel of laterite pyrometallurgical smelting product according to claim 2, feature
Be: II temperature controlling range of carbonylation device is 200 DEG C -300 DEG C, and pressure control range is 8Mpa -12Mpa.
8. a kind of deep processing processing method of thick ferronickel of laterite pyrometallurgical smelting product according to claim 2, feature
Be: the I bottom temp control range of rectifier unit is 20 DEG C -70 DEG C.
9. a kind of deep processing processing method of thick ferronickel of laterite pyrometallurgical smelting product according to claim 2, feature
Be: II temperature controlling range of rectifier unit is 20 DEG C -50 DEG C.
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| CN201810887574.3A CN108996553A (en) | 2018-08-06 | 2018-08-06 | A kind of deep processing treatment system and processing method of the thick ferronickel of laterite pyrometallurgical smelting product |
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| CN107267746A (en) * | 2017-07-07 | 2017-10-20 | 沈阳有色金属研究院 | The method and its device of a kind of lateritic nickel ore direct-reduction-top blow smelting production ferronickel |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3955962A (en) * | 1974-04-13 | 1976-05-11 | Klockner-Werke Ag | Method of and apparatus for producing metal fibers in a magnetic field |
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Application publication date: 20181214 |