CN104478005A - Method for preparing carbonyl iron - Google Patents
Method for preparing carbonyl iron Download PDFInfo
- Publication number
- CN104478005A CN104478005A CN201410733202.7A CN201410733202A CN104478005A CN 104478005 A CN104478005 A CN 104478005A CN 201410733202 A CN201410733202 A CN 201410733202A CN 104478005 A CN104478005 A CN 104478005A
- Authority
- CN
- China
- Prior art keywords
- iron
- gas
- reactor
- sponge iron
- carbon monoxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 26
- 229910052742 iron Inorganic materials 0.000 claims abstract description 46
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 229940087654 iron carbonyl Drugs 0.000 claims description 24
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000005262 decarbonization Methods 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 238000005810 carbonylation reaction Methods 0.000 abstract description 17
- 230000006315 carbonylation Effects 0.000 abstract description 15
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- -1 carbonyl ion Chemical class 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 230000035484 reaction time Effects 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 241000234282 Allium Species 0.000 description 1
- 235000002732 Allium cepa var. cepa Nutrition 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
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- Catalysts (AREA)
Abstract
The invention relates to a method for preparing carbonyl iron and relates to improvement of a method for preparing carbonyl ion from sponge iron through carbonylation reaction. The method comprises the following step: enabling raw material sponge iron in a reaction kettle to react with carbon monoxide which passes through the reaction kettle. The method is characterized in that NH3 is adopted as the carbon monoxide gas. The method for preparing carbonyl iron, which is provided by the invention, is simple and convenient to operate, remarkable in effect and easy to implement. The detection result shows that the reaction velocity is remarkably increased in the carbonylation synthesis process, and the carbonylation rate of the sponge iron is ultimately increased.
Description
Technical field
Prepare a method for iron carbonyl, relate to a kind of improvement sponge iron carried out oxonation and prepare iron carbonyl method.
Background technology
At present, prepare the method for iron carbonyl, normally sponge iron is reacted with pure carbon monoxide in certain temperature situation, due in reaction process because sponge iron activity is not high, affect CARBONYLATION PROCESSES speed of reaction to reduce, cause carbonylation rate to reduce, add at production process production cost.
Summary of the invention
Object of the present invention, just for the deficiency that above-mentioned prior art exists, provides a kind of carbonylation rate that effectively can improve sponge iron, reduces the method preparing iron carbonyl of production cost.
To achieve these goals, the present invention by the following technical solutions.
Prepare a method for iron carbonyl, its preparation process adopts sponge iron to be raw material, reacted by sponge iron in reactor with the carbon monoxide gas passing into reactor, it is characterized in that passing in the CO (carbon monoxide converter) gas of reactor containing NH
3gas.
A kind of method preparing iron carbonyl of the present invention, is characterized in that passing into NH in the carbon monoxide gas of reactor
3volume ratio content be 3%-10%.
A kind of method preparing iron carbonyl of the present invention, it is characterized in that passing into reactor containing NH
3cO (carbon monoxide converter) gas be iron carbonyl decompose prepare that iron powder process produces, through the gas of pressure swing adsorption decarbonization.
A kind of method preparing iron carbonyl of the present invention, by the CO (carbon monoxide converter) gas containing NH3, passes into continuously sponge iron, the NH in carbon monoxide bottom reactor
3as catalyzer, in reaction process, reduce the activation energy of sponge iron, impel sponge iron to react fast, prevent reversible reaction, effectively can improve the carbonylation rate of sponge iron in carbonylation process.
A kind of method preparing iron carbonyl of the present invention, easy and simple to handle, successful, is easy to realize.After testing, in anti-carbonylation process, speed of reaction obviously changes, and finally improves sponge iron carbonylation rate.; And in iron carbonyl decomposition course, usually allocate a certain amount of ammonia into, reduce the carbon content in iron powder, improve powder spherical in shape simultaneously, impel iron powder to form onion shape ball-like structure.
Embodiment
Prepare a method for iron carbonyl, its preparation process adopts sponge iron to be raw material, reacted by sponge iron, add NH in carbon monoxide gas in reactor Yu by the carbon monoxide gas of reactor
3content be 3%-10%(volume ratio).
Embodiment 1
By iron level 96.8%, the sponge iron of 4 tons is placed in reactor, through overdraft and heater heats, the pure carbon monoxide gas of 8.5MPa and 200 DEG C is entered in reactor react with sponge iron, continuous print passes into CO (carbon monoxide converter) gas, 3 days reaction times, final generation iron carbonyl liquid 5.82m
3, sponge iron carbonylation rate is 61%.
Embodiment 2
By iron level 96.8%, the sponge iron of same batch of 4 tons is placed in reactor, and use high pressure compressor will containing NH
3measure that 3% decomposition gas is logical boosts to 8.5MPa, mixed gas, through overdraft and heater heats, makes the mixed gas of 8.5MPa and 200 DEG C enter in reactor and reacts with sponge iron.3 days reaction times, final generation iron carbonyl liquid 6.68m
3, sponge iron carbonylation rate is 70%.
Embodiment 3
By iron level 96.8%, the sponge iron of same batch of 4 tons is placed in reactor, and use high pressure compressor will containing NH
3the decomposition gas measured after 5% decarburization boosts to 8.5MPa, and mixed gas, through overdraft and heater heats, makes the mixed gas of 8.5MPa and 200 DEG C enter in reactor and reacts with sponge iron.3 days reaction times, final generation iron carbonyl liquid 7.16m
3, sponge iron carbonylation rate is 75%.
Embodiment 4
By iron level 96.8%, the sponge iron of same batch of 4 tons is placed in reactor, and use high pressure compressor will containing NH
3measure 7% decomposition gas and boost to 8.5MPa, mixed gas, through overdraft and heater heats, makes the mixed gas of 8.5MPa and 200 DEG C enter in reactor and reacts with sponge iron.3 days reaction times, final generation iron carbonyl liquid 7.73m
3, sponge iron carbonylation rate is 81%.
Embodiment 5
By iron level 96.8%, the sponge iron of same batch of 4 tons is placed in reactor, and use high pressure compressor will containing NH
3measure 8% decomposition gas and boost to 8.5MPa, mixed gas, through overdraft and heater heats, makes the mixed gas of 8.5MPa and 200 DEG C enter in reactor and reacts with sponge iron.3 days reaction times, final generation iron carbonyl liquid 8.3m
3, sponge iron carbonylation rate is 87%.
Embodiment 6
By iron level 96.8%, the sponge iron of same batch of 4 tons is placed in reactor, and use high pressure compressor will containing NH
3measure 9% decomposition gas and boost to 8.5MPa, mixed gas, through overdraft and heater heats, makes the mixed gas of 8.5MPa and 200 DEG C enter in reactor and reacts with sponge iron.3 days reaction times, final generation iron carbonyl liquid 8.78m
3, sponge iron carbonylation rate is 92%.
Embodiment 7
By iron level 96.8%, the sponge iron of same batch of 4 tons is placed in reactor, and use high pressure compressor will containing NH
3measure 10% decomposition gas and boost to 8.5MPa, mixed gas, through overdraft and heater heats, makes the mixed gas of 8.5MPa and 200 DEG C enter in reactor and reacts with sponge iron.3 days reaction times, final generation iron carbonyl liquid 8.83m
3, sponge iron carbonylation rate is 92.5%.
Claims (3)
1. prepare a method for iron carbonyl, its preparation process adopts sponge iron to be raw material, reacted by sponge iron in reactor with the carbon monoxide gas passing into reactor, it is characterized in that passing in the CO (carbon monoxide converter) gas of reactor containing NH
3gas.
2. a kind of method preparing iron carbonyl according to claim 1, is characterized in that passing into NH in the carbon monoxide gas of reactor
3volume ratio content be 3%-10%.
3. a kind of method preparing iron carbonyl according to claim 1, it is characterized in that passing into reactor containing NH
3cO (carbon monoxide converter) gas be iron carbonyl decompose prepare that iron powder process produces, through the gas of pressure swing adsorption decarbonization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410733202.7A CN104478005A (en) | 2014-12-07 | 2014-12-07 | Method for preparing carbonyl iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410733202.7A CN104478005A (en) | 2014-12-07 | 2014-12-07 | Method for preparing carbonyl iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104478005A true CN104478005A (en) | 2015-04-01 |
Family
ID=52752649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410733202.7A Pending CN104478005A (en) | 2014-12-07 | 2014-12-07 | Method for preparing carbonyl iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104478005A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105671336A (en) * | 2016-03-31 | 2016-06-15 | 江苏省冶金设计院有限公司 | Method and system for utilizing copper tailings comprehensively |
| CN108568531A (en) * | 2018-04-25 | 2018-09-25 | 赣南师范大学 | A kind of alloying carbonyl iron dust and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329912A (en) * | 2011-10-28 | 2012-01-25 | 余成鹏 | Quick reduction method for directly reducing iron |
| CN102718269A (en) * | 2012-06-05 | 2012-10-10 | 金川集团股份有限公司 | Preparation method of carbonyl iron |
-
2014
- 2014-12-07 CN CN201410733202.7A patent/CN104478005A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329912A (en) * | 2011-10-28 | 2012-01-25 | 余成鹏 | Quick reduction method for directly reducing iron |
| CN102718269A (en) * | 2012-06-05 | 2012-10-10 | 金川集团股份有限公司 | Preparation method of carbonyl iron |
Non-Patent Citations (1)
| Title |
|---|
| 王炳根等: "羰基铁粉的热处理", 《四川冶金》, no. 6, 31 December 1998 (1998-12-31) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105671336A (en) * | 2016-03-31 | 2016-06-15 | 江苏省冶金设计院有限公司 | Method and system for utilizing copper tailings comprehensively |
| CN108568531A (en) * | 2018-04-25 | 2018-09-25 | 赣南师范大学 | A kind of alloying carbonyl iron dust and preparation method thereof |
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Application publication date: 20150401 |