CN114438327A - Iodination separation method for iron in iron-containing alloy - Google Patents

Iodination separation method for iron in iron-containing alloy Download PDF

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CN114438327A
CN114438327A CN202111640891.3A CN202111640891A CN114438327A CN 114438327 A CN114438327 A CN 114438327A CN 202111640891 A CN202111640891 A CN 202111640891A CN 114438327 A CN114438327 A CN 114438327A
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iron
containing alloy
roasting
alloy
nickel
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CN114438327B (en
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郭学益
秦红
于大伟
田庆华
陈远林
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Central South University
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/001—Dry processes
    • C22B7/002—Dry processes by treating with halogens, sulfur or compounds thereof; by carburising, by treating with hydrogen (hydriding)
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/13—Iodine; Hydrogen iodide
    • C01B7/14—Iodine
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/06—Ferric oxide (Fe2O3)
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/08—Ferroso-ferric oxide (Fe3O4)
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/02—Obtaining nickel or cobalt by dry processes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

A method for iodinating and separating iron in an iron-containing alloy comprises the following steps: (1) introducing iodine steam into the iron-containing alloy for roasting to obtain roasting slag and roasting flue gas; (2) and introducing oxidizing gas into the roasting flue gas, and reacting at high temperature to obtain an iron-containing product and oxidation transformation flue gas. The invention adopts iodized roasting to treat the iron-containing alloy, thereby not only realizing the separation of iron in the iron-containing alloy, but also realizing the high-value utilization of iron, obtaining products such as ferroferric oxide, iron oxide red and the like, and in addition, iodine element can be recycled in the process.

Description

Iodination separation method for iron in iron-containing alloy
Technical Field
The invention belongs to the field of metallurgy, and particularly relates to an iodination separation method of iron in an iron-containing alloy.
Background
Nickel is known as an "industrial vitamin" and is widely used. At present, more than 70 percent of nickel production raw materials come from laterite-nickel ore, and in the process of recovering nickel in the laterite-nickel ore, due to the limitation of ore properties and smelting process, the currently better laterite-nickel ore treatment process is still a process for reducing the laterite-nickel ore to obtain ferronickel alloy. With the rapid development of global electric automobiles, the consumption of nickel is rapidly increased, and the consumption structure of nickel is also changed greatly. The existing process for smelting nickel laterite ores to obtain ferronickel alloy is often only used as raw materials for stainless steel production due to high iron content, and cannot be directly used as production raw materials of power batteries and the like, so that a separation process of ferronickel in the ferronickel alloy needs to be developed, so that the process for smelting nickel laterite ores to obtain the ferronickel alloy can be better suitable for market development. Patent application No. CN202110696065.4 discloses a method for separating nickel and iron from a nickel-iron alloy and a method for preparing battery-grade nickel sulfate, wherein a solution containing nickel and iron ions is obtained by wet leaching, and an oxidant is continuously added into an acid solution to separate iron from the solution so as to control Fe in a reaction system2+The oxidation rate of the catalyst is controlled, meanwhile, the nickel cobalt neutralizer is continuously added to control the pH of the reaction system to be 1.8-4.0, meanwhile, the reaction temperature is controlled to be 60-110 ℃, and the pressure is 0.1-1 MPa. The patent with application number CN202110776000.0 discloses a method for producing battery-grade nickel sulfate by taking a nickel-iron alloy as a raw material, which comprises the steps of firstly carrying out high-temperature static dissolution on the nickel-iron alloy, enabling nickel and iron in the nickel-iron alloy to react with dilute sulfuric acid to generate corresponding nickel sulfate and iron sulfate to enter a solution, then filtering, adjustingThe pH of the filtrate is adjusted, and then iron is removed by high-temperature oxygen pressure. The method mainly adopts a wet treatment method to realize the separation of the ferronickel, but has the defects of long process flow and incapability of fully recycling the iron. Patent No. CN202011210440.1 discloses a method for separating nickel and iron from a nickel-iron alloy, which effectively realizes the separation of nickel and iron by a melt extraction method, and although iron can be fully utilized, a large amount of magnesium metal is used in the process, and an oxygen-free environment is required, which limits further industrial application. Therefore, how to provide a process for separating and fully utilizing iron in the nickel-iron alloy with high industrial application degree is a technical problem to be solved in the research process of fully utilizing the resource of the nickel-iron alloy.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects and shortcomings in the background art and provide a method for iodinating and separating iron in iron-containing alloy.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a method for iodinating and separating iron in an iron-containing alloy comprises the following steps:
(1) introducing iodine steam into the iron-containing alloy for roasting to obtain roasting slag and roasting flue gas; in the process, the main reaction of iron in the iron-containing alloy is Fe + I2(g)＝FeI2(g) Realizing the separation of iron in the iron-containing alloy; the phases in the roasting slag are mainly alloys formed by nickel, nickel and a small amount of iron, and the roasting slag is in a loose porous structure, so that the subsequent recovery of the nickel in the roasting slag is facilitated;
(2) and introducing oxidizing gas into the roasting flue gas, and reacting at high temperature to obtain an iron-containing product and oxidation transformation flue gas. FeI in the flue gas in the process2(g) The reactions that occur are: 2xFeI2(g)+yO2＝2FexOy+2xI2(g) The process not only realizes the oxidation transformation of iron, but also realizes the regeneration of iodine, and the obtained iodine simple substance can be used for participating in the Fe + I2(g)＝FeI2(g) The reaction of (1).
Preferably, in the iodination separation method of iron in the iron-containing alloy, the oxidation conversion flue gas obtained in the step (2) is condensed to obtain an iodine simple substance and a condensed gas.
In the iodination separation method of iron in the iron-containing alloy, preferably, the obtained iodine simple substance is sublimated and then is introduced into the step (1) for recycling; and (3) supplementing oxidizing gas into the obtained condensed gas, and introducing the gas into the step (2) for recycling.
In the iodination separation method of iron in the iron-containing alloy, the temperature in the condensation process is preferably 0-35 ℃.
Preferably, in the step (1), the roasting temperature is 500-1000 ℃, and the roasting time is not less than 20 min.
Preferably, in the step (1), the amount of iodine vapor introduced is calculated by the amount of iron contained in the ferronickel alloy, and 1 to 50 moles of iodine vapor is added per mole of iron.
Preferably, in the iodination separation method of iron in the iron-containing alloy, in the step (2), the oxidizing gas is one or more of air, oxygen and ozone.
In the above method for iodinating and separating iron in an iron-containing alloy, preferably, in the step (2), the addition amount of the oxidizing gas is controlled by the flow rate, and 0.1 to 10L/min of the oxidizing gas is introduced per kilogram of the iron-containing alloy for not less than 10 min.
Preferably, in the step (2), the reaction temperature is 300-900 ℃, and the reaction time is not less than 10 min.
In the above method for iodinating and separating iron in an iron-containing alloy, preferably, the iron-containing alloy includes a nickel-iron alloy.
Compared with the prior art, the invention has the advantages that:
(1) the invention adopts iodized roasting to treat the iron-containing alloy, thereby not only realizing the separation of iron in the iron-containing alloy, but also realizing the high-value utilization of iron, obtaining products such as ferroferric oxide, iron oxide red and the like, and in addition, iodine element can be recycled in the process.
(2) The invention adopts the iodizing roasting to treat the nickel-iron alloy, and the obtained treatment slag is an alloy formed by nickel, nickel and a small amount of iron after the nickel-iron alloy is subjected to iodizing roasting treatment and is in a loose porous structure, thereby being beneficial to the recovery of nickel in the subsequent slag.
(3) The invention has the advantages of high resource utilization rate, no waste slag, good environmental protection benefit and the like.
Drawings
FIG. 1 is a flow chart of the process for separating iron from iron-containing alloy in the invention by iodination.
Fig. 2 is a phase analysis diagram of a nickel-iron alloy to be processed in the example of the present invention.
Fig. 3 is an XRD analysis pattern of the roasting slag obtained by iodinating and roasting the nickel-iron alloy in example 1 of the present invention.
FIG. 4 is an XRD analysis chart of the oxidized transformation slag obtained in example 1 of the present invention.
Detailed Description
In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
The compositions of the nickel-iron alloys used in the following examples are shown in Table 1, and the phase analysis thereof is shown in FIG. 2.
Table 1: chemical composition of Nickel-iron alloy (wt%)
Element(s) Ni Fe S Cu Si Mn Cr Co Al
Content (wt.) 33.98 55.79 0.19 1.41 3.75 0.25 0.81 0.23 0.11
Example 1:
the process flow diagram of the iodination separation method of iron in the nickel-iron alloy is shown in figure 1, and the iodination separation method comprises the following steps:
(1) 10g of the ferronickel alloy is placed in a reaction furnace, the air in the furnace is exhausted, and then the temperature is raised.
(2) When the temperature rises to 900 ℃, iodine vapor (M) is slowly introduced according to 40 times of the molar content of the iron in the alloyFe：MI21:40, molar mass ratio) and reacting the alloy with iodine vapor for 1 hour to obtain roasting smoke and roasting slag. XRD of the roasting slag is shown in figure 3, and the phases in the roasting slag are mainly nickel and alloy formed by nickel and iron; and analyzing the components of the obtained roasting slag, wherein the calculated volatilization rate of iron is 87.04%, and the roasting slag is in a loose porous structure, thereby being beneficial to the recovery of nickel in the follow-up slag and the roasting slag.
(3) And introducing 0.1L/min oxygen into the roasting flue gas per kilogram of the nickel-iron alloy, so that the roasting flue gas and the oxygen react for 45min at the temperature of 600 ℃, and obtaining 7.2g of black oxidation transformation slag and oxidation transformation flue gas after the reaction is finished, wherein the phase analysis of the oxidation transformation slag is shown in figure 4, and the main phase is ferroferric oxide.
(4) Condensing the oxidized and transformed flue gas to 10 ℃ to obtain iodine elementary substance and condensed gas (mainly comprising oxygen), wherein the iodine elementary substance and the condensed gas can be recycled.
Example 2:
the process flow diagram of the iodination separation method of iron in the nickel-iron alloy is shown in figure 1, and the iodination separation method comprises the following steps:
(1) 10g of the ferronickel alloy is placed in a reaction furnace, the air in the furnace is exhausted, and then the temperature is raised.
(2) When the temperature rises to 1000 ℃, iodine vapor (M) is slowly added according to 45 times of the molar content of iron in the nickel-iron alloyFe：MI21:45, molar ratio) and reacting the ferronickel alloy with iodine steam for 45min to obtain roasting smoke and roasting slag, analyzing the components of the obtained roasting slag, calculating the volatilization rate of iron to be 89.57%, wherein the roasting slag has a loose porous structure, and is beneficial to the recovery of nickel in the follow-up slag.
(3) Introducing 5L/min of oxygen into the roasting flue gas per kilogram of the nickel-iron alloy, enabling the roasting flue gas to react with the oxygen at the temperature of 600 ℃ for 30min, obtaining 7.8g of reddish-brown oxidation transformation slag and oxidation transformation flue gas after the reaction is finished, carrying out phase analysis on the oxidation transformation slag, wherein the oxidation transformation slag mainly comprises ferric oxide, condensing the oxidation transformation flue gas to 10 ℃, obtaining an iodine simple substance and a condensed gas, and using the iodine simple substance in example 3.
Example 3:
the process flow diagram of the iodination separation method of iron in the nickel-iron alloy is shown in figure 1, and the iodination separation method comprises the following steps:
(1) 10g of the nickel-iron alloy is placed in a reaction furnace, the air in the furnace is exhausted, and then the temperature is raised.
(2) When the temperature is raised to 800 ℃, the iodine vapor (M) obtained by heating and sublimating the elementary iodine recovered in the embodiment 2 is slowly introduced according to 20 times of the molar content of the iron in the nickel-iron alloyFe：MI21:45, molar ratio), reacting the ferronickel alloy with iodine steam for 90min to obtain roasting smoke and roasting slag, carrying out component analysis on the obtained roasting slag, and calculating the volatilization rate of iron to be 74.25%.
(3) And introducing 10L/min of oxygen into the roasting flue gas per kilogram of alloy, so that the roasting flue gas and the oxygen react for 45min at 700 ℃, and obtaining 7.4g of reddish-brown conversion slag ferric oxide and oxidation conversion flue gas after the reaction is finished.
(4) Condensing the oxidized and transformed flue gas to 10 ℃ to obtain an iodine simple substance and a condensed gas, wherein the iodine simple substance and the condensed gas can be recycled.
In conclusion, the invention realizes the separation of iron in the iron-containing alloy by adopting the iodination roasting treatment on the iron-containing alloy, can realize the high-value utilization of the iron, and obtains products such as ferroferric oxide, iron oxide red and the like, and in addition, iodine element and introduced oxidizing gas can be recycled in the process.

Claims (10)

1. The method for iodinating and separating iron in the iron-containing alloy is characterized by comprising the following steps of:
(1) introducing iodine steam into the iron-containing alloy for roasting to obtain roasting slag and roasting flue gas;
(2) and introducing oxidizing gas into the roasting flue gas, and reacting at high temperature to obtain an iron-containing product and oxidation transformation flue gas.
2. The method for iodinating and separating iron in iron-containing alloys according to claim 1, wherein the oxidized conversion flue gas obtained in step (2) is condensed to obtain elemental iodine and a condensed gas.
3. The method for iodizing and separating iron in the iron-containing alloy according to claim 2, wherein the obtained iodine simple substance is heated and sublimated and then is introduced into the step (1) for recycling; and (3) supplementing oxidizing gas into the obtained condensed gas, and then introducing the gas into the step (2) for recycling.
4. The process for the iodination of iron in iron-containing alloys according to claim 2, wherein the condensation process temperature is 0-35 ℃.
5. The method for iodinating and separating iron in an iron-containing alloy according to any one of claims 1 to 4, wherein in the step (1), the roasting temperature is 500-1000 ℃, and the roasting time is not less than 20 min.
6. The method for iodinating and separating iron in an iron-containing alloy according to any one of claims 1 to 4, wherein in the step (1), the iodine vapor is introduced in an amount of 1 to 50 moles per mole of iron, calculated as the iron content in the nickel-iron alloy.
7. The method for iodinating and separating iron in an iron-containing alloy according to any one of claims 1 to 4, wherein in the step (2), the oxidizing gas is one or more of air, oxygen and ozone.
8. The method for separating iron from iron-containing alloy by iodination according to any one of claims 1 to 4, wherein in the step (2), the amount of the oxidizing gas is controlled by controlling the flow rate of the oxidizing gas, and 0.1-10L/min of the oxidizing gas is fed per kilogram of the iron-containing alloy for not less than 10 min.
9. The method for separating iron from iron-containing alloy through iodination according to any one of claims 1 to 4, wherein in the step (2), the reaction temperature is 300-900 ℃, and the reaction time is not less than 10 min.
10. The method for the iodination and separation of iron in an iron-containing alloy according to any one of claims 1 to 4, wherein the iron-containing alloy comprises a nickel-iron alloy.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6287416A (en) * 1985-10-14 1987-04-21 Toyo Soda Mfg Co Ltd Production of high-purity niobium iodide
CN104101576A (en) * 2014-07-31 2014-10-15 攀钢集团江油长城特殊钢有限公司 Method for determining nickel content in steel or iron alloy
CN108728645A (en) * 2017-04-20 2018-11-02 上海御盾新材料科技有限公司 A method of recycling noble metal from ferroalloy
CN112941314A (en) * 2021-01-29 2021-06-11 湖南邦普循环科技有限公司 Method for separating nickel and iron from nickel-iron alloy and application
CN113215589A (en) * 2021-04-15 2021-08-06 中国恩菲工程技术有限公司 Method for separating iron and other metal elements in iron alloy
CN113265532A (en) * 2021-04-09 2021-08-17 广东邦普循环科技有限公司 Method for leaching nickel-ammonia solution from nickel-iron alloy by wet method and application

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6287416A (en) * 1985-10-14 1987-04-21 Toyo Soda Mfg Co Ltd Production of high-purity niobium iodide
CN104101576A (en) * 2014-07-31 2014-10-15 攀钢集团江油长城特殊钢有限公司 Method for determining nickel content in steel or iron alloy
CN108728645A (en) * 2017-04-20 2018-11-02 上海御盾新材料科技有限公司 A method of recycling noble metal from ferroalloy
CN112941314A (en) * 2021-01-29 2021-06-11 湖南邦普循环科技有限公司 Method for separating nickel and iron from nickel-iron alloy and application
CN113265532A (en) * 2021-04-09 2021-08-17 广东邦普循环科技有限公司 Method for leaching nickel-ammonia solution from nickel-iron alloy by wet method and application
CN113215589A (en) * 2021-04-15 2021-08-06 中国恩菲工程技术有限公司 Method for separating iron and other metal elements in iron alloy

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
无: "碘化亚铁", 《360百科》 *
日本化学会等: "《无机化合物合成手册 第2卷》", 31 March 1986, 化学工业出版社 *

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