Alumina ua kom nquag
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Gamma activated alumina / Gamma Alumina Catalyst Carriers / gamma alumina hlaws dai
Khoom
Chav tsev
Qhov tshwm sim
Alumina Theem
Gamma Alumina
Kev Faib Tawm Qhov Loj ntawm Cov Khoom Me Me
D50
μm
88.71
＜20μm
%
0.64
＜40μm
%
9.14
>150μm
%
15.82
Cov Tshuaj Lom Zem
Al2O3
%
99.0
SiO2
%
0.014
Na2O
%
0.007
Fe2O3
%
0.011
Kev Ua Haujlwm Lub Cev
BET
m²/g
196.04
Qhov Ntim Qhov Hnyav
Ml/g
0.388
Qhov Nruab Nrab Qhov Loj
nm
7.92
Qhov Ceev Ntau
g/ml
0.688
Alumina tau pom tias muaj tsawg kawg yog 8 hom, lawv yog α-Al2O3, θ-Al2O3, γ-Al2O3, δ-Al2O3, η-Al2O3, χ-Al2O3, κ-Al2O3 thiab ρ-Al2O3, lawv cov qauv macroscopic kuj txawv. Gamma activated alumina yog ib lub cubic close packed crystal, insoluble hauv dej, tab sis soluble hauv acid thiab alkali. Gamma activated alumina yog cov acidic tsis muaj zog, muaj lub melting point siab 2050 ℃, alumina gel hauv hydrate daim ntawv tuaj yeem ua rau oxide nrog porosity siab thiab qhov chaw tshwj xeeb siab, nws muaj cov theem hloov pauv hauv qhov kub ntau. Thaum kub dua, vim yog dehydration thiab dehydroxylation, Al2O3 qhov chaw zoo li sib koom ua ke unsaturated oxygen (alkali center) thiab txhuas (acid center), nrog catalytic activity. Yog li ntawd, alumina tuaj yeem siv ua tus cab kuj, catalyst thiab cocatalyst.Gamma activated alumina yuav yog hmoov, granules, strips lossis lwm yam. Peb tuaj yeem ua raws li koj qhov xav tau. γ-Al2O3, hu ua "activated alumina", yog ib hom khoom siv khoom tawg yooj yim, vim nws cov qauv pore hloov kho tau, thaj chaw loj, kev ua haujlwm zoo adsorption, nto nrog qhov zoo ntawm acidity thiab thermal stability zoo, microporous nto nrog cov khoom tsim nyog ntawm catalytic kev ua, yog li ntawd dhau los ua catalyst, catalyst carrier thiab chromatography carrier siv dav tshaj plaws hauv kev lag luam tshuaj lom neeg thiab roj, thiab ua lub luag haujlwm tseem ceeb hauv cov roj hydrocracking, hydrogenation refining, hydrogenation reforming, dehydrogenation reaction thiab automobile exhaust purification process. Gamma-Al2O3 yog siv dav ua catalyst carrier vim nws qhov kev hloov kho tau ntawm nws cov qauv pore thiab acidity ntawm qhov chaw. Thaum γ-Al2O3 siv ua tus cab kuj, ntxiv rau qhov tuaj yeem muaj cov teebmeem rau kev tawg thiab ruaj khov cov khoom siv nquag, kuj tuaj yeem muab cov kua qaub alkali active center, synergistic reaction nrog cov khoom siv catalytic nquag. Cov qauv pore thiab cov khoom nto ntawm cov catalyst nyob ntawm γ-Al2O3 tus neeg nqa khoom, yog li ntawd tus neeg nqa khoom ua tau zoo yuav pom rau cov tshuaj tiv thaiv catalytic tshwj xeeb los ntawm kev tswj cov khoom ntawm gamma alumina tus neeg nqa khoom.Alumina ua haujlwm los ntawm gamma feem ntau yog ua los ntawm nws cov khoom siv pseudo-boehmite los ntawm 400 ~ 600 ℃ kub siab dehydration, yog li ntawd qhov chaw physicochemical khoom feem ntau yog txiav txim siab los ntawm nws cov khoom siv pseudo-boehmite, tab sis muaj ntau txoj hauv kev los ua pseudo-boehmite, thiab ntau qhov chaw ntawm pseudo-boehmite ua rau muaj ntau yam gamma - Al2O3. Txawm li cas los xij, rau cov catalysts nrog cov kev xav tau tshwj xeeb rau alumina carrier, tsuas yog cia siab rau kev tswj hwm ntawm cov khoom siv pseudo-boehmite nyuaj rau ua tiav, yuav tsum tau coj mus rau kev npaj prophase thiab kev ua tiav tom qab kev sib txuas ua ke los kho cov khoom ntawm alumina kom tau raws li cov kev xav tau sib txawv. Thaum qhov kub siab dua 1000 ℃ siv, alumina tshwm sim tom qab kev hloov pauv theem: γ → δ → θ → α-Al2O3, ntawm lawv γ, δ, θ yog cubic kaw packing, qhov sib txawv tsuas yog nyob rau hauv kev faib tawm ntawm txhuas ions hauv tetrahedral thiab octahedral, yog li cov kev hloov pauv theem no tsis ua rau muaj kev hloov pauv ntau ntawm cov qauv. Cov pa oxygen ions nyob rau hauv alpha theem yog hexagonal kaw packing, txhuas oxide particles yog loj reunion, tshwj xeeb nto cheeb tsam poob qis heev.
Kev Khaws Cia:Tsis txhob ntub dej, tsis txhob scrolling, pov thiab ntse shocking thaum lub sijhawm thauj mus los, cov chaw tiv nag yuav tsum tau npaj.Nws yuav tsum tau khaws cia rau hauv qhov chaw qhuav thiab muaj cua nkag kom tiv thaiv kev kis kab mob lossis dej noo.Pob khoom:Hom
Lub hnab yas
Nruas
Nruas
Lub hnab loj / Lub hnab loj
hlaws dai
25kg/55lb
25 kg/ 55 phaus
150 kg/ 330 phaus
750kg/1650lb
900kg/1980lb
1000kg / 2200 phaus
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Ua kom muaj lub pob kheej kheej zoo li alumina gel / Ua tau zoo heev alumina pob / alpha alumina pob
Ua kom muaj lub voj voog zoo li Alumina gel
rau kev txhaj tshuaj hauv lub tshuab ziab cuaQhov ceev ntawm cov khoom loj (g/1):690Qhov Loj Mesh: 98% 3-5mm (xws li 3-4mm 64% thiab 4-5mm 34%)Qhov kub ntawm kev rov ua dua tshiab uas peb pom zoo yog ntawm 150 thiab 200 ℃Euiqlibrium muaj peev xwm rau cov pa dej yog 21%Kev Ntsuas Tus Qauv
HG/T3927-2007
Khoom Siv Kuaj
Txheem / SPEC
Cov txiaj ntsig ntawm kev xeem
Hom
Cov hlaws dai
Cov hlaws dai
Al2O3（%)
≥92
92.1
LOI（%)
≤8.0
7.1
Qhov Ceev Ntau（g / cm3)
≥0.68
0.69
BET（m2/g)
≥380
410
Qhov Ntim Qhov Hnyav（cm3/g)
≥0.40
0.41
Lub zog tsoo (N / G)
≥130
136
Kev nqus dej（%)
≥50
53.0
Kev Poob Thaum Raug Tshem Tawm（%)
≤0.5
0.1
Qhov Loj Tsim Nyog（%)
≥90
95.0
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Pseudo Boehmite
Cov Ntaub Ntawv Siv Txog Kev Siv Tshuab / Cov Khoom Siv Ntim Khoom Cov khoom no yog siv dav ua adsorbent, desiccant, catalyst lossis catalyst carrier hauv kev ua roj refining, roj hmab, chiv thiab petrochemical kev lag luam. Ntim 20kg / 25kg / 40kg / 50kg lub hnab woven lossis ib tus neeg siv khoom thov. -
Ua kom Alumina nrog Potassium Permanganate
Nws yog ib qho tshuaj adsorption ntawm cov khoom siv feem ntau, cov tshuaj catalyst tshiab uas zoo rau ib puag ncig. Nws yog kev siv cov potassium permanganate oxidizing muaj zog, cov pa phem hauv huab cua oxidation decomposition kom ua tiav lub hom phiaj ntawm kev ntxuav. Cov pa phem sulfur oxides (so2), methyl, acetaldehyde, nitrogen oxides, hydrogen sulfide thiab cov aldehydes tsawg thiab org acids muaj kev tshem tawm zoo heev. Feem ntau siv nrog activated caybon ua ke los txhim kho kev nqus dej zoo. Nws kuj tseem siv tau rau hauv zaub thiab txiv hmab txiv ntoo ua adsorbent ntawm ethylene roj.
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Ua kom muaj Alumina Adsorbent rau Hydrogen Peroxide
Cov khoom no yog ib yam khoom dawb, kheej kheej uas muaj qhov ntxeem tau nrog cov khoom tsis muaj tshuaj lom, tsis muaj ntxhiab, tsis yaj hauv dej thiab ethanol. Qhov loj me ntawm cov khoom yog sib npaug, qhov chaw du, lub zog kho tshuab siab, lub peev xwm ntawm kev nqus dej noo yog muaj zog thiab lub pob tsis tawg tom qab nqus dej.
Alumina rau hydrogen peroxide muaj ntau cov capillary channels thiab thaj chaw loj, uas tuaj yeem siv ua adsorbent, desiccant thiab catalyst. Tib lub sijhawm, nws kuj tau txiav txim siab raws li polarity ntawm cov khoom adsorbed. Nws muaj kev sib raug zoo rau dej, oxides, acetic acid, alkali, thiab lwm yam. Activated alumina yog ib hom micro-water deep desiccant thiab adsorbent rau adsorbing polar molecules.
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Ua kom Alumina Siv rau Kev Kho Dej
Cov khoom no yog ib yam khoom dawb, kheej kheej uas muaj qhov ntxeem tau nrog cov khoom tsis muaj tshuaj lom, tsis muaj ntxhiab, tsis yaj hauv dej thiab ethanol. Qhov loj me ntawm cov khoom yog sib npaug, qhov chaw du, lub zog kho tshuab siab, lub peev xwm nqus dej noo tau zoo thiab lub pob tsis tawg tom qab nqus dej.
Qhov loj me ntawm cov khoom me me tuaj yeem yog 1-3 hli, 2-4 hli / 3-5 hli lossis me dua xws li 0.5-1.0 hli. Nws muaj thaj chaw sib cuag loj dua nrog dej thiab thaj chaw tshwj xeeb siab dua 300m² / g, nws muaj ntau cov microspores thiab tuaj yeem ua kom muaj zog adsorption thiab muaj peev xwm defluorination ntau rau fluorinnion hauv dej.
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Pob alumina ua kom nquag / Pob alumina ua kom nquag / Tus neeg sawv cev defluorination dej kho
Cov khoom no yog ib yam khoom dawb, kheej kheej uas muaj qhov ntxeem tau nrog cov khoom tsis muaj tshuaj lom, tsis muaj ntxhiab, tsis yaj hauv dej thiab ethanol. Qhov loj me ntawm cov khoom yog sib npaug, qhov chaw du, lub zog kho tshuab siab, lub peev xwm nqus dej noo tau zoo thiab lub pob tsis tawg tom qab nqus dej.
