CN102051431B - Method for producing iron foil by carbonylation - Google Patents
Method for producing iron foil by carbonylation Download PDFInfo
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- CN102051431B CN102051431B CN2010105727457A CN201010572745A CN102051431B CN 102051431 B CN102051431 B CN 102051431B CN 2010105727457 A CN2010105727457 A CN 2010105727457A CN 201010572745 A CN201010572745 A CN 201010572745A CN 102051431 B CN102051431 B CN 102051431B
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- Prior art keywords
- iron
- gas
- synthesis reactor
- foil
- iron foil
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 238000005810 carbonylation reaction Methods 0.000 title claims abstract description 11
- 230000006315 carbonylation Effects 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 39
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 39
- 239000007789 gas Substances 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 21
- 229910052742 iron Inorganic materials 0.000 claims abstract description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 229940087654 iron carbonyl Drugs 0.000 claims description 18
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005518 electrochemistry Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000013595 glycosylation Effects 0.000 description 1
- 238000006206 glycosylation reaction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to a method for producing an iron foil by carbonylation. The method comprises the following steps: placing sponge iron in a synthesis kettle; introducing carbon monoxide gas into the synthesis kettle, controlling the pressure in the synthesis kettle to 9-15 MPa and the temperature in the synthesis kettle to 150-240 DEG C; and carrying out a carbonylation reaction for 32-50 hours to generate carbonyl iron gas; naturally cooling the temperature in the synthesis kettle to 40-25 DEG C, decomposing the carbonyl iron gas to form the iron foil, and introducing nitrogen with thepressure of 0.3-0.7 MPa into a reaction kettle so as to remove the undecomposed carbonyl iron gas to prepare the iron foil. By using the method, the problems that cost is high, components are difficult to control, successive treatment is difficult, pollution is serious and the like in the prior art are avoided, the iron foil the iron content in which is above 98.0% is prepared.
Description
Technical field
The invention belongs to metallurgical technology field, relate to the method that a kind of carbonylation is produced iron foil.
Background technology
Iron foil is mainly used in high energy storage density alkaline battery electrode framework material, can also be used for special soft packaging (fire prevention, damp proof insulation, magnetic protection), magnetic shielding material, pre-prepared colloid forme version base (replacement aluminium plate base), circuit board manufacture material etc.
At present, the technology for preparing iron foil both at home and abroad mainly adopts steel rolling method and electrochemistry purifying method.And steel rolling method cost is high, composition is difficult to control, the subsequent disposal difficulty; When producing iron foil, the electrochemistry purifying method also has cost height, heavy-polluted problem.Therefore the iron foil technology produced of carbonyl process of the present invention can obtain a kind of higher degree, iron foil that cost is low.
Summary of the invention
The purpose of this invention is to provide a kind of carbonylation and produce the method for iron foil, can control composition, reduce cost, solved the problem that exists in the prior art.
For realizing above-mentioned purpose, the technical scheme that the present invention adopted is that a kind of carbonylation is produced the method for iron foil, specifically carries out according to the following steps:
Step 1: get sponge iron, place in the synthesis reactor;
Step 2: CO gas is fed in the synthesis reactor of step 1, the pressure of controlling in this synthesis reactor is that 9Mpa～15Mpa, temperature are 150 ℃～240 ℃, and oxonation 32 hours～50 hours generates iron carbonyl gas;
Step 3: the temperature natural in the synthesis reactor is cooled to 40 ℃～25 ℃, and the iron carbonyl decomposing gas forms iron foil, is the nitrogen feeding reaction kettle of 0.3Mpa～0.7Mpa with pressure, removes undecomposed iron carbonyl gas in the synthesis reactor, makes iron foil.
The iron-holder of sponge iron is 95%～97% in the said step 1.
Said sponge iron adopts logical hydrogen activatory sponge iron.
The purity of CO gas is not less than 99.9% in the said step 2.
The present invention produces the method for carbonyl iron foil, has following advantage:
1) iron level in the carbonyl iron foil that makes can reach more than 98.0%.Problems such as the cost of problem is high in the prior art, composition is difficult to control, subsequent disposal is difficult, pollution is big have been avoided simultaneously.
2) decompose parameter through adjustment, obtain the iron foil of different thickness.
3) the carbonyl iron foil of processing is nontoxic, is difficult for oxidation and spontaneous combustion.
4) simplify technical process, further reduced production cost.
Embodiment
Below in conjunction with embodiment the present invention is elaborated.
Because the existing wayward composition of method for preparing iron foil, cost is higher, and contaminate environment; In order to overcome the problems referred to above, the invention provides a kind of composition that is easy to control, cost is lower; And the method for iron foil is produced in glycosylation free from environmental pollution, specifically carries out according to the following steps:
Step 1: getting logical hydrogen activatory iron-holder is 95%～97% sponge iron, and this sponge iron is placed synthesis reactor;
Step 2: purity is not less than in the synthesis reactor that 99. 9% CO gas feeds step 1; The pressure of controlling in this synthesis reactor is that 9～15Mpa, temperature are 150～240 ℃; The selectivity oxonation took place 32～50 hours in sponge iron and CO gas in synthesis reactor, generate iron carbonyl gas;
Step 3: the temperature natural in the synthesis reactor is cooled to 25～40 ℃, and the iron carbonyl decomposing gas forms iron foil, is the nitrogen feeding reaction kettle of 0.3～0.7Mpa with pressure, removes undecomposed iron carbonyl gas in the synthesis reactor, makes iron foil.
The inventive method adopts hot branch mode to prepare iron foil, can control composition, reduces cost, and is free from environmental pollution, and the iron foil thickness that makes is even.
Embodiment 1
The sponge iron of the logical hydrogen activatory iron-holder 95% of 1Kg is placed synthesis reactor; And feeding purity is not less than 99.9% CO gas; Pressure in the control synthesis reactor is that 9Mpa, temperature are 240 ℃; The selectivity oxonation took place 32 hours in sponge iron and CO gas in synthesis reactor, generate iron carbonyl gas; Make the temperature natural in the synthesis reactor be cooled to 40～25 ℃, the iron carbonyl decomposing gas forms iron foil, is that undecomposed iron carbonyl gas in the synthesis reactor is removed in displacement, makes iron foil in the nitrogen feeding synthesis reactor of 0.3Mpa with pressure.The specification of this iron foil is 5-50mm * 5-50mm * 0.2-0.25mm, and weight is 0.74Kg, purity 98.0%; Its surface compact is smooth, and thickness is even.
Embodiment 2
The sponge iron of the logical hydrogen activatory iron-holder 97% of 1Kg is placed synthesis reactor; And feed purity and be not less than 99.9% CO gas, the pressure in the control synthesis reactor is that 15Mpa, temperature are 150 ℃, the selectivity oxonation took place 50 hours in sponge iron and CO gas in synthesis reactor; Generate iron carbonyl gas; Make the temperature natural in the synthesis reactor be cooled to 40～25 ℃, the iron carbonyl decomposing gas forms iron foil, is in the nitrogen feeding synthesis reactor of 0.7Mpa with pressure; Undecomposed iron carbonyl gas in the synthesis reactor is removed in displacement, makes iron foil.The specification of this iron foil is 5-50mm * 5-50mm * 0.15-0.2mm, and weight is 0.71Kg, purity 98.0%, and its surface compact is smooth, and thickness is even.
Embodiment 3
The sponge iron of the logical hydrogen activatory iron-holder 96% of 1Kg is placed synthesis reactor; And feed purity and be not less than 99.9% CO gas, 195 ℃ of pressure 12Mpa, the temperature of control synthesis reactor, the selectivity oxonation took place 41 hours in sponge iron and CO gas in synthesis reactor; Generate iron carbonyl gas; Temperature natural in the synthesis reactor is cooled to 40～25 ℃, and the iron carbonyl decomposing gas forms iron foil, and pressure is fed in the synthesis reactor for the nitrogen that feeds 0.5Mpa; Undecomposed iron carbonyl gas in the synthesis reactor is removed in displacement, makes iron foil.The specification of this iron foil is 5-50mm * 5-50mm * 0.1-0.15mm, and weight is 0.65Kg, purity 98.0%, and its surface compact is smooth, and thickness is even.
Claims (4)
1. a carbonylation is produced the method for iron foil, it is characterized in that this method is specifically carried out according to the following steps:
Step 1: get sponge iron, place in the synthesis reactor;
Step 2: CO gas is fed in the synthesis reactor of step 1, the pressure of controlling in this synthesis reactor is that 12MPa, temperature are 150 ℃～240 ℃, and oxonation 32 hours～50 hours generates iron carbonyl gas;
Step 3: the temperature natural in the synthesis reactor is cooled to 40 ℃～25 ℃, and the iron carbonyl decomposing gas forms iron foil, is the nitrogen feeding reaction kettle of 0.3MPa～0.7MPa with pressure, removes undecomposed iron carbonyl gas in the synthesis reactor, makes iron foil.
2. produce the method for iron foil according to the said carbonylation of claim 1, it is characterized in that the iron-holder of sponge iron is 95%～97% in the said step 1.
3. produce the method for iron foil according to claim 1 or 2 said carbonylations, it is characterized in that, said sponge iron adopts logical hydrogen activatory sponge iron.
4. produce the method for iron foil according to the said carbonylation of claim 1, it is characterized in that the purity of CO gas is not less than 99.9% in the said step 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105727457A CN102051431B (en) | 2010-12-04 | 2010-12-04 | Method for producing iron foil by carbonylation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105727457A CN102051431B (en) | 2010-12-04 | 2010-12-04 | Method for producing iron foil by carbonylation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102051431A CN102051431A (en) | 2011-05-11 |
| CN102051431B true CN102051431B (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105727457A Active CN102051431B (en) | 2010-12-04 | 2010-12-04 | Method for producing iron foil by carbonylation |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719801A (en) * | 2012-06-05 | 2012-10-10 | 金川集团股份有限公司 | Method for preparing nickel foil |
| CN105458279A (en) * | 2015-11-30 | 2016-04-06 | 金川集团股份有限公司 | Method for lowering carbon content of carbonyl iron powder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821095A (en) * | 2006-03-17 | 2006-08-23 | 金川集团有限公司 | Process for producing carbonyl iron |
| CN1948165A (en) * | 2006-11-24 | 2007-04-18 | 金川集团有限公司 | Method of producing iron carbonyl by high pressure synthesis technology in fixed container |
| CN101209862A (en) * | 2007-12-25 | 2008-07-02 | 金川集团有限公司 | Method for preparing carbonyl iron |
| CN101696038A (en) * | 2009-10-26 | 2010-04-21 | 江西悦安超细金属有限公司 | Method for preparing carbonyl iron powder in high-pressure circulating way |
-
2010
- 2010-12-04 CN CN2010105727457A patent/CN102051431B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821095A (en) * | 2006-03-17 | 2006-08-23 | 金川集团有限公司 | Process for producing carbonyl iron |
| CN1948165A (en) * | 2006-11-24 | 2007-04-18 | 金川集团有限公司 | Method of producing iron carbonyl by high pressure synthesis technology in fixed container |
| CN101209862A (en) * | 2007-12-25 | 2008-07-02 | 金川集团有限公司 | Method for preparing carbonyl iron |
| CN101696038A (en) * | 2009-10-26 | 2010-04-21 | 江西悦安超细金属有限公司 | Method for preparing carbonyl iron powder in high-pressure circulating way |
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| CN102051431A (en) | 2011-05-11 |
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Address after: 737100 Beijing Road, Jinchuan District, Jinchang City, Gansu Province Patentee after: JINCHUAN GROUP Co.,Ltd. Country or region after: China Address before: 737103 No. 98, Jinchuan Road, Jinchang, Gansu Patentee before: Jinchuan Group Co.,Ltd. Country or region before: China |
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Effective date of registration: 20240402 Address after: 737100 No. 2 Lanzhou Road, Beijing Road Street, Jinchuan District, Jinchang City, Gansu Province Patentee after: Jinchuan Group Nickel Cobalt Co.,Ltd. Country or region after: China Address before: 737100 Beijing Road, Jinchuan District, Jinchang City, Gansu Province Patentee before: JINCHUAN GROUP Co.,Ltd. Country or region before: China |
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