CN100512950C - Manganese series deoxidants and their preparation process - Google Patents
Manganese series deoxidants and their preparation process Download PDFInfo
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- CN100512950C CN100512950C CN 200610022255 CN200610022255A CN100512950C CN 100512950 C CN100512950 C CN 100512950C CN 200610022255 CN200610022255 CN 200610022255 CN 200610022255 A CN200610022255 A CN 200610022255A CN 100512950 C CN100512950 C CN 100512950C
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- manganese
- deoxidier
- active component
- molecular sieve
- deoxidation
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- 150000002696 manganese Chemical class 0.000 title claims abstract description 10
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 239000002808 molecular sieve Substances 0.000 claims abstract description 26
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical group [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000011572 manganese Substances 0.000 claims description 51
- 229910052748 manganese Inorganic materials 0.000 claims description 45
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 41
- 239000011230 binding agent Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 12
- 229920005610 lignin Polymers 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- 241001494479 Pecora Species 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229960000892 attapulgite Drugs 0.000 claims description 5
- 239000004927 clay Substances 0.000 claims description 5
- 235000009508 confectionery Nutrition 0.000 claims description 5
- 229910052625 palygorskite Inorganic materials 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 5
- 239000005995 Aluminium silicate Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 235000012211 aluminium silicate Nutrition 0.000 claims description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 4
- RGVLTEMOWXGQOS-UHFFFAOYSA-L manganese(2+);oxalate Chemical compound [Mn+2].[O-]C(=O)C([O-])=O RGVLTEMOWXGQOS-UHFFFAOYSA-L 0.000 claims description 2
- XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 claims description 2
- 229940093474 manganese carbonate Drugs 0.000 claims 1
- 235000006748 manganese carbonate Nutrition 0.000 claims 1
- 239000011656 manganese carbonate Substances 0.000 claims 1
- 229910000016 manganese(II) carbonate Inorganic materials 0.000 claims 1
- 238000012216 screening Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 38
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 33
- 239000001301 oxygen Substances 0.000 abstract description 33
- 229910052760 oxygen Inorganic materials 0.000 abstract description 33
- 230000000694 effects Effects 0.000 abstract description 8
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical group [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 abstract 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- 238000009776 industrial production Methods 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 230000004913 activation Effects 0.000 description 12
- 239000001257 hydrogen Substances 0.000 description 11
- 229910052739 hydrogen Inorganic materials 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 101100513612 Microdochium nivale MnCO gene Proteins 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000006356 dehydrogenation reaction Methods 0.000 description 2
- 238000006392 deoxygenation reaction Methods 0.000 description 2
- 238000006253 efflorescence Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 206010037844 rash Diseases 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The manganese series deoxidants consist of active component, supporter, adhesive and pore expander, where the active component is manganese oxide and the supporter is molecular sieve. The manganese series deoxidants have high deoxidizing activity, great oxygen capacity and high deoxidizing precision, and may be used in deoxidizing multiple kinds of gas, especially precise deoxidation of gas with high oxygen content. In addition, the manganese series deoxidants have high mechanical strength, no powdering and no chocking, and may be used in industrial production. The present invention also discloses the preparation process of the manganese series deoxidants.
Description
Technical field
The invention belongs to the deoxy technology field of chemical industry, particularly a kind of manganese deoxidier and preparation method thereof.
Background technology
The deoxidier of present industrial use or dehydrogenation catalyst comprise two classes: the first kind is the catalytic reaction deoxidation, its deoxidation mechanism is to have in the presence of the hydrogen, water generation reaction takes place and reaches the purpose of deoxygenation in oxygen in the unstripped gas and hydrogen under catalyst action, this class dehydrogenation catalyst adopts precious metals pt, Pd etc. to be active component mostly, have that operating temperature is wide, air speed is high and advantage such as remaining oxygen is low, but in reaction, need hydrogen, have the high-purity gas of strict demand inapplicable to hydrogen content, this class catalyst costs an arm and a leg simultaneously.The second class deoxidier is chemisorbed reaction deoxidation, and its deoxidation mechanism is oxygen in the unstripped gas and deoxidier generation chemical reaction and deoxygenation, and this class deoxidier is to be active component with Mn, Cu, Ni etc., does not need hydrogen in deoxidation process.The copper deoxidier is long-term to use the easy surface that takes place to come off, and the nickel deoxidier can not reach the requirement of smart deoxidation.Manganese deoxidier deoxy activity height can satisfy the requirement of smart deoxidation, and promptly oxygen content is less than 1ppm in the gas after the deoxidation, and logical hydrogen reduction can return to former deoxy activity after using.China's manganese aboundresources, cheap, so manganese deoxidier has very strong competitiveness in smart deoxidation field.
It is to support carrier that present commercially available manganese deoxidier generally adopts activated alumina, and alumina cement is a binding agent, though can be as the smart deoxidation of gas, narrow application range only is fit to than low oxygen content (O
2≤ 200ppm) the smart deoxidation of gas for the smart deoxidation of the higher gas of oxygen content, is difficult to the requirement that reaches desirable.
Summary of the invention
The purpose of this invention is to provide a kind of high activity, high strength and inexpensive manganese deoxidier, this manganese deoxidier deoxy activity height, oxygen capacity are greatly, the deoxidation precision is dark, mechanical strength good, applicable to the multiple gases deoxidation, be particularly suitable for the smart deoxidation of higher oxygen content gas, can use by heavy industrialization.
Another object of the present invention provides a kind of preparation method of manganese series deoxidants.
The technical solution adopted for the present invention to solve the technical problems is: a kind of manganese deoxidier, make by active component, support carrier, binding agent and expanding agent, the percentage by weight of each component can be (with active component, support carrier, binding agent deal sum is 100%): active component 30～80%, support carrier 10～50%, binding agent 10～50%, other have expanding agent account for active component, support carrier and binding agent the mixture total weight amount 5～20%; Wherein: active component can be selected from manganese dioxide (MnO
2), manganese carbonate (MnCO
3), manganese oxalate (C
2H
2O
4Mn) etc. any one or a few in, the support carrier is a molecular sieve, and binding agent is good with clay, and expanding agent is good with lignin;
The method preparation of this manganese deoxidier by may further comprise the steps:
(1), with the active component of described deal, support carrier, binding agent and expanding agent and mix, be ground into the above powder of 300 orders;
(2), with (1) powder compacting in step; Can adopt conventional methods such as roller forming, compression molding or extruded moulding, make spherical, column, sheet, tri-lobed or other special shape etc., size is not limit.
(3), with the mixture behind (2) one-step forming 300～550 ℃ of following roastings 3～5 hours, promptly make described manganese deoxidier.
Molecular sieve can be selected from any one or a few in A-type molecular sieve, X-type molecular sieve, Y-shaped molecular sieve, the phosphate aluminium molecular sieve etc.
Clay can be selected from any one or a few in kaolin, the sweet soil of sheep, diatomite, the attapulgite etc.
The shape of manganese deoxidier of the present invention can be spherical, column, sheet, tri-lobed or other special shape etc.
The logical earlier before use hydrogen activation of manganese series deoxidants, 180～250 ℃ of activation temperatures, air speed 50～800h
-1
Manganese deoxidier of the present invention is to be the deoxidier of original material preparation with the manganese ore that china natural resources is enriched, be mainly used in the degree of depth deoxidation of general conventional gas, as the smart deoxidation of gases such as nitrogen, argon gas, hydrogen, helium, carbon monoxide, carbon dioxide, methane, ethylene gas, propylene gas, be particularly suitable for the smart deoxidation of the higher gas of oxygen content.
The deoxidation mechanism of manganese deoxidier of the present invention is:
Deoxidation process: 2nMnO+O
2→ 2Mn
n0
N+1+ Q (n=1,2,3)
Activation (regeneration) process: Mn
nO
N+1+ H
2→ nMnO+H
2O+Q (n=1,2,3)
More than the heat that absorbs of Q representative in each reaction equation.
Activation (regeneration) process is: Mn oxide at high price is reduced into the low oxide with activity.
Compared with prior art, the invention has the beneficial effects as follows:
1. manganese deoxidier of the present invention is an active component with the oxide of manganese, deoxy activity height, oxygen capacity are big, the deoxidation precision is dark, applicable to the multiple gases deoxidation, be mainly used in smart deoxidation, be particularly suitable for the smart deoxidation of higher oxygen content gas, oxygen content can be taken off to 1ppm greater than the oxygen in the 1000ppm gas; This deoxidier is used for smart deoxidation, and its actual oxygen capacity (active component is by MnO) is more than 20% of theoretical capacity, is up to 38% of theoretical oxygen capacity.
2. manganese deoxidier of the present invention as supporting carrier, can improve the specific area of deoxidier with molecular sieve, and (specific area is 200～400m with respect to activated alumina
2/ g), the specific area (800～1000m of molecular sieve
2/ g) much bigger, big specific area helps the absorption of gas on the deoxidier surface, makes reaction more abundant.
3. manganese deoxidier of the present invention adopts the interpolation lignin to make expanding agent, can improve the porosity of deoxidier, the manganese deoxidier that makes not only specific area is big, and voidage height, help the interior diffusion of gas, improve the utilization rate of deoxidier granule interior active component, improve the utilization rate of deoxidier active component greatly.
4. manganese deoxidier of the present invention adopts clay to make binding agent, the deoxidier mechanical strength that makes is good, efflorescence and clogging can not take place in the use, even deoxidier efflorescence or the surperficial phenomenon that comes off can not appear in long-term the use yet, be suitable for heavy industrialization and use.
5. the preparation method of manganese deoxidier of the present invention is simple, and the manganese resource that china natural resources is enriched is abundant, and raw material is easy to get, low production cost.
The specific embodiment
The present invention is described in further detail below in conjunction with the specific embodiment.But this should be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following embodiment.
Embodiment 1
The present embodiment manganese deoxidier is formed (is 100% with active component, support carrier, binding agent deal sum) by following components in weight percentage:
MnO
240%, 4A molecular sieve 30%, attapulgite 30%, other has lignin to account for MnO
2, 4A molecular sieve and attapulgite the mixture total weight amount 10%.
The present embodiment manganese deoxidier makes by following method:
(1), with the MnO of described deal
2, 4A molecular sieve, attapulgite and lignin mix, and is ground into the above powder of 300 orders;
(2), with (1) the powder roller forming in step;
(3), with the mixture behind (2) one-step forming 300～400 ℃ of following roastings 3～5 hours, promptly make described manganese deoxidier.
Embodiment 2
The present embodiment manganese deoxidier is formed (is 100% with active component, support carrier, binding agent deal sum) by following components in weight percentage:
MnO
235%, 5A molecular sieve 15%, kaolin 50%, other has lignin to account for MnO
2, 5A molecular sieve and kaolinic mixture total weight amount 15%.
The present embodiment manganese deoxidier makes by following method:
(1), with the MnO of described deal
2, 5A molecular sieve, kaolin and lignin mix, and is ground into the above powder of 300 orders;
(2), with (1) the pressed powder moulding in step;
(3), with the mixture behind (2) one-step forming 400～450 ℃ of following roastings 3～5 hours, promptly make described manganese deoxidier.
Embodiment 3
The present embodiment manganese deoxidier is formed (is 100% with active component, support carrier, binding agent deal sum) by following components in weight percentage:
MnCO
330%, 13X molecular sieve 50%, diatomite 20%, other has lignin to account for MnCO
3, 13X molecular sieve and diatomaceous mixture total weight amount 5%.
The present embodiment manganese deoxidier makes by following method:
(1), with the MnCO of described deal
3, 13X molecular sieve, diatomite and lignin mix, and is ground into the above powder of 300 orders;
(2), with (1) the powder roller forming in step;
(3), with the mixture behind (2) one-step forming 400～500 ℃ of following roastings 3～5 hours, promptly make described manganese deoxidier.
Embodiment 4
The present embodiment manganese deoxidier is formed (is 100% with active component, support carrier, binding agent deal sum) by following components in weight percentage:
C
2H
2O
4Mn 80%,, phosphate aluminium molecular sieve 10%, sheep be sweet native 10%, other has lignin to account for C
2H
2O
420% of the mixture total weight amount of Mn, phosphate aluminium molecular sieve and the sweet soil of sheep.
(1), with the C of described deal
2H
2O
4Mn, phosphate aluminium molecular sieve, the sweet soil of sheep and lignin mix, and are ground into the above powder of 300 orders;
(2), with (1) the powder extruded moulding in step;
(3), with the mixture behind (2) one-step forming 500～550 ℃ of following roastings 3～5 hours, promptly make described manganese deoxidier.
Embodiment 5
Present embodiment is used for the experiment of the smart deoxidation of nitrogen for the manganese deoxidier with the foregoing description 1:
Earlier with the logical hydrogen activation of manganese deoxidier of the foregoing description 1, activation condition is: 180～250 ℃ of activation temperatures, air speed 50～800h before being used for smart deoxidation
-1, and then be used for the smart deoxidation of nitrogen, 150～250 ℃ of deoxidation temperature, 180～250 ℃ of activation (regeneration) temperature.Deoxidier is placed tubular reactor, repeated test 4 times, when unstripped gas oxygen content, deoxidation after unstripped gas air speed, the deoxidation remaining oxygen of gas and oxygen capacity see Table 1 respectively:
Table 1 deoxidation experiment
| Numbering | Unstripped gas oxygen content ppm | Deoxidation air speed h -1 | The remaining oxygen ppm of gas after the deoxidation | Oxygen capacity ml0 2/ g deoxidier |
| 1 | 90 | 2000 | <1 | 15 |
| 2 | 512 | 1500 | <1 | 13.5 |
| 3 | 757 | 1500 | <1 | 12 |
| 4 | 1270 | 1000 | <1 | 10.3 |
Embodiment 6
Present embodiment is used for nitrogen CO for the manganese deoxidier with the foregoing description 2
2The enforcement of smart deoxidation:
Earlier with the logical hydrogen activation of manganese deoxidier of the foregoing description 2, activation condition is: 180～250 ℃ of activation temperatures, air speed 50～800h before being used for smart deoxidation
-1, and then be used for CO
2Smart deoxidation, 150～250 ℃ of deoxidation temperature, 180～250 ℃ of activation (regeneration) temperature.Deoxidier is placed tubular reactor, repeated test 4 times, when unstripped gas oxygen content, deoxidation after unstripped gas air speed, the deoxidation remaining oxygen of gas and oxygen capacity see Table 2 respectively:
Table 2 CO
2Deoxidation experiment
| Numbering | Unstripped gas oxygen content ppm | Deoxidation air speed h -1 | The remaining oxygen ppm of gas after the deoxidation | Oxygen capacity mlO 2/ g deoxidier |
| 1 | 100 | 2000 | <1 | 14.7 |
| 2 | 340 | 1500 | <1 | 13.4 |
| 3 | 830 | 1000 | <1 | 12.1 |
| 4 | 1060 | 1000 | <1 | 10.7 |
From example 5 and example 6 as can be seen, manganese deoxidier of the present invention can satisfy the requirement of industrial smart deoxidation, can with in the gas greater than 1000ppm oxygen take off to oxygen content less than 1ppm.This deoxidier deoxy activity height, the deoxidation precision is dark, oxygen capacity is big, mechanical strength is good, the scope of application is wide, long service life, especially is fit to the smart deoxidation of higher oxygen content gas.
The scope of application of manganese deoxidier of the present invention is extensive, except that the smart deoxidation that is used for above-mentioned nitrogen, carbon dioxide, also can be used for the smart deoxidation of gases such as argon gas, hydrogen, helium, carbon monoxide, methane, ethylene gas, propylene gas.
Claims (3)
1. manganese deoxidier, make by active component, support carrier, binding agent and expanding agent, with active component, support carrier, binding agent deal sum is 100%, the percentage by weight of described each component is: active component 30～80%, support carrier 10～50%, binding agent 10～50%, other have expanding agent account for active component, support carrier and binding agent the mixture total weight amount 5～20%; Wherein: active component is selected from any one or a few in manganese dioxide, manganese carbonate, the manganese oxalate, and the support carrier is a molecular sieve, and binding agent is a clay, and expanding agent is a lignin; This manganese deoxidier makes by the method that may further comprise the steps:
(1), with the active component of described deal, support carrier, binding agent and expanding agent and mix, be ground into the above powder of 300 orders;
(2), with (1) powder compacting in step;
(3), with the mixture behind (2) one-step forming 300～550 ℃ of following roastings 3～5 hours, promptly make described manganese deoxidier.
2. manganese deoxidier according to claim 1 is characterized in that: described molecular screening any one or a few in A-type molecular sieve, X-type molecular sieve, Y-shaped molecular sieve, phosphate aluminium molecular sieve.
3. manganese deoxidier according to claim 1 is characterized in that: described clay is selected from any one or a few in kaolin, the sweet soil of sheep, diatomite, the attapulgite.
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|---|---|---|---|
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| CN100512950C true CN100512950C (en) | 2009-07-15 |
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| CN102758061A (en) * | 2012-06-21 | 2012-10-31 | 芜湖县天海耐火炉料有限公司 | Silicon-manganese sepiolite deoxidier for steelmaking and preparation method thereof |
| CN103920395B (en) * | 2014-04-04 | 2016-04-20 | 刘卫东 | Polynary cleanser of a kind of fuel engines tail gas and preparation method thereof |
| CN105646223B (en) * | 2014-12-04 | 2017-12-26 | 中国科学院大连化学物理研究所 | A kind of method that levulic acid catalysis oxidation esterification prepares succinate |
| CN108014629A (en) * | 2016-11-04 | 2018-05-11 | 沈阳三聚凯特催化剂有限公司 | A kind of deoxidier with sulfur tolerance and preparation method thereof |
| CN111266083B (en) * | 2020-02-18 | 2021-02-02 | 吉林大学 | Manganese-based molecular sieve deoxidizer and preparation method and application thereof |
| CN113511951A (en) * | 2020-04-10 | 2021-10-19 | 中国石油化工股份有限公司 | Method for deoxidizing unsaturated hydrocarbon gas |
| CN112495389B (en) * | 2020-11-09 | 2023-03-17 | 大连圣得环保新材料有限公司 | Efficient multifunctional deoxidation catalyst, preparation method and application thereof |
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