Desiccant
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Gamma activated alumina / Gamma Alumina Catalyst Carriers / gamma alumina hlaws
Yam khoom
Chav tsev
Kev tshwm sim
Alumina Phase
Gamma Alumina
Particle Loj Distribution
D50
μm
88.71 ib
＜20μm
%
0.64 ib
＜40μm
%
9.14 ib
＞150μm
%
15.82 Nws
Tshuaj muaj pes tsawg leeg
Al2O3
%
99.0 ua
SiO 2
%
0.014 ib
Na2O
%
0.007 ib
Fe2O 3
%
0.011 ib
Lub cev ua haujlwm
BET
m²/g
196.04 Nws
Pore Volume
Ml/g
0.388 ib
Qhov Nruab Nrab Pore Loj
nm
7.92 ib
Kev ceev ceev
g/ml
0.688 ib
Alumina tau pom muaj tsawg kawg yog 8 daim ntawv, 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 lub cubic kaw ntim siv lead ua, insoluble hauv dej, tab sis soluble hauv acid thiab alkali.Gamma activated alumina tsis muaj zog acidic kev txhawb nqa, muaj lub siab melting point 2050 ℃, alumina gel nyob rau hauv daim ntawv hydrate tuaj yeem ua rau hauv cov oxide nrog cov porosity siab thiab siab tshwj xeeb nto, nws muaj qhov hloov pauv hauv qhov kub thiab txias.Thaum kub siab dua, vim lub cev qhuav dej thiab dehydroxylation, Al2O3surface zoo li kev sib koom ua ke unsaturated oxygen (alkali center) thiab aluminium (acid center), nrog rau kev ua haujlwm catalytic.Yog li ntawd, alumina tuaj yeem siv los ua cov cab, catalyst thiab cocatalyst.Gamma activated alumina tuaj yeem yog hmoov, granules, strips lossis lwm yam.Peb tuaj yeem ua raws li qhov koj xav tau.γ-Al2O3, hu ua "activated alumina", yog ib yam ntawm cov khoom ntxeem tau siab dispersion khoom, vim nws cov qauv pore adjustable, qhov loj ntawm qhov chaw, kev ua haujlwm zoo adsorption, nto nrog qhov zoo ntawm acidity. thiab zoo thermal stability, microporous nto nrog cov khoom tsim nyog ntawm catalytic kev txiav txim, yog li ntawd dhau los ua cov catalyst feem ntau siv, catalyst carrier thiab chromatography cab kuj nyob rau hauv cov tshuaj thiab roj kev lag luam, thiab plays ib tug tseem ceeb luag hauj lwm nyob rau hauv cov roj hydrocracking, hydrogenation refining, hydrogenation reforming, Cov tshuaj tiv thaiv dehydrogenation thiab tsheb purification txheej txheem.Gamma-Al2O3 yog dav siv los ua catalyst cab kuj vim qhov adjustability ntawm nws pore qauv thiab nto acidity.Thaum γ- Al2O3 siv los ua tus nqa khoom, dhau li ntawd tuaj yeem muaj qhov cuam tshuam rau kev tawg thiab ruaj khov cov khoom siv, kuj tuaj yeem muab cov kua qaub alkali active chaw, synergistic cov tshuaj tiv thaiv nrog cov catalytic active Cheebtsam.Lub pore qauv thiab cov khoom nto ntawm catalyst nyob ntawm γ-Al2O3 cov cab kuj, yog li cov neeg nqa khoom ua haujlwm siab yuav pom muaj cov tshuaj tiv thaiv catalytic tshwj xeeb los ntawm kev tswj cov khoom ntawm gamma alumina carrier.Gamma activated alumina feem ntau yog ua los ntawm nws cov precursor pseudo-boehmite los ntawm 400 ~ 600 ℃ siab kub lub cev qhuav dej, yog li lub nto physicochemical zog yog loj txiav txim los ntawm nws precursor pseudo-boehmite, tab sis muaj ntau ntau txoj kev los ua pseudo-boehmite, thiab ntau qhov chaw. ntawm pseudo-boehmite ua rau muaj ntau haiv neeg ntawm gamma - Al2O3.Txawm li cas los xij, rau cov catalysts nrog cov kev cai tshwj xeeb rau alumina carrier, tsuas yog tso siab rau kev tswj hwm ntawm precursor pseudo-boehmite yog qhov nyuaj rau kev ua tiav, yuav tsum tau coj mus rau kev npaj 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 tshaj 1000 ℃ hauv kev siv, alumina tshwm sim tom qab hloov pauv theem: γ → δ → θ → α-Al2O3, ntawm lawv γ, δ, θ yog cubic kaw, 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.Oxygen ions nyob rau hauv alpha theem yog hexagonal kaw packing, txhuas oxide hais yog grave reunion, tej thaj chaw deg poob considerably.
Cia:lAv tsis txhob ya raws, tsis txhob scrolling, pov thiab ntse shocking thaum lub sij hawm kev thauj mus los, rainproof chaw yuav tsum tau npaj..Nws yuav tsum tau muab cia rau hauv qhuav thiab ventilated warehouse kom tsis txhob muaj kab mob los yog ya raws.Pob:Hom
Lub hnab yas
Nruas
Nruas
Super hnab / Jumbo hnab
Bead
25kg / 55 lb
25 kg / 55 lb
150 kg / 330 lb
750kg / 1650 lb
900kg / 1980 lb
1000kg / 2200 lb
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activated spherical zoo li tus alumina gel / Kev ua haujlwm siab alumina pob / alpha alumina pob
Activated Spherical Shaped Alumina gel
rau kev txhaj tshuaj hauv Cua tshuab ziab khaub ncawsQhov ceev (g / 1): 690Mesh Loj: 98% 3-5mm (xws li 3-4mm 64% thiab 4-5mm 34%)Qhov kub thiab txias peb pom zoo yog nruab nrab ntawm 150 thiab 200 ℃Euiqlibrium muaj peev xwm rau dej vapor yog 21%Test Standard
HG/T3927-2007
Cov khoom kuaj
Txheem / SPEC
Kev Xeem
Hom
Cov hlaws dai
Cov hlaws dai
Al2O3(%)
≥92
92.1 ib
LOI(%)
≤8.0
7.1
Kev ceev ceev(g / cm3)
≥0.68
0.69 ib
BET(m2/g)
≥380
410
Pore Volume(cm3/g)
≥0.40
0.41 ib
Crush Strength (N/G)
≥130
136
Dej adsorption(%)
≥50
53.0 ua
Loss ntawm Attrition(%)
≤0.5
0.1
Tsim Nyog Qhov Loj(%)
≥90
95.0 ua
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Activated Alumina Adsorbent rau Hydrogen Peroxide
Cov khoom yog cov khoom siv dawb, kheej kheej kheej kheej nrog cov khoom tsis muaj tshuaj lom, tsis muaj ntxhiab, insoluble hauv dej thiab ethanol.Qhov loj me me yog qhov sib xws, qhov saum npoo yog du, lub zog txhua yam yog siab, qhov muaj peev xwm ntawm cov dej noo nqus yog muaj zog thiab lub pob tsis sib cais tom qab nqus dej.
Alumina rau hydrogen peroxide muaj ntau txoj hauv kev capillary thiab thaj chaw loj, uas tuaj yeem siv ua adsorbent, desiccant thiab catalyst.Nyob rau tib lub sijhawm, nws kuj tau txiav txim siab raws li qhov 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-dej sib sib zog nqus desiccant thiab adsorbent rau adsorbing polar molecules.
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Activated Alumina Rau Kev Kho Dej
Cov khoom yog cov khoom siv dawb, kheej kheej kheej kheej nrog cov khoom tsis muaj tshuaj lom, tsis muaj ntxhiab, insoluble hauv dej thiab ethanol.Qhov loj me me yog qhov sib xws, qhov saum npoo yog du, lub zog ntawm lub zog yog siab, lub peev xwm ntawm cov dej nqus dej muaj zog thiab lub pob tsis sib cais tom qab nqus dej.
Qhov loj me me tuaj yeem yog 1-3mm, 2-4mm / 3-5mm lossis txawm me me xws li 0.5-1.0mm.Nws muaj qhov sib cuag loj dua nrog cov dej thiab thaj chaw tshwj xeeb saum npoo siab tshaj 300m² / g, nws muaj qhov loj ntawm microspores thiab tuaj yeem ua kom muaj zog adsorption thiab siab defluorination ntim rau fluorinnion hauv dej.
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Activated alumina pob / Activated alumina pob desiccant / Dej kho defluorination tus neeg saib xyuas
Cov khoom yog cov khoom siv dawb, kheej kheej kheej kheej nrog cov khoom tsis muaj tshuaj lom, tsis muaj ntxhiab, insoluble hauv dej thiab ethanol.Qhov loj me me yog qhov sib xws, qhov saum npoo yog du, lub zog ntawm lub zog yog siab, lub peev xwm ntawm cov dej nqus dej muaj zog thiab lub pob tsis sib cais tom qab nqus dej.
