Desiccant
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Gamma activated alumina/Gamma Alumina Catalyst Masu ɗaukar hoto/gamma alumina bead
Abu
Naúrar
Sakamako
Alumina Phase
Gamma Alumina
Rarraba Girman Barbashi
D50
μm
88.71
＜20μm
%
0.64
＜40μm
%
9.14
：150μm
%
15.82
Haɗin Sinadari
Farashin 2O3
%
99.0
SiO2
%
0.014
Na 2O
%
0.007
Fe2O3
%
0.011
Ayyukan Jiki
BET
m²/g
196.04
Girman Pore
ml/g
0.388
Matsakaicin Girman Pore
nm
7.92
Yawan yawa
g/ml
0.688
Alumina an gano ya wanzu aƙalla nau'i 8, sune α- Al2O3, θ-Al2O3, γ- Al2O3, δ- Al2O3, η- Al2O3, χ- Al2O3, κ- Al2O3 da ρ- Al2O3, macroscopic tsarin kaddarorin su. ma daban-daban.Gamma kunna alumina wani nau'in lu'u-lu'u ne mai cike da lu'ulu'u, wanda ba ya narkewa a cikin ruwa, amma mai narkewa a cikin acid da alkali.Gamma kunna alumina ne rauni acidic goyon baya, yana da wani babban narkewa batu 2050 ℃, alumina gel a hydrate nau'i za a iya sanya a cikin oxide tare da high porosity da kuma high takamaiman surface, yana da miƙa mulki bulan a cikin wani m zazzabi kewayon.A mafi yawan zafin jiki, saboda rashin ruwa da dehydroxylation, Al2O3surface yana bayyana daidaituwar oxygen unsaturated (cibiyar alkali) da aluminum (cibiyar acid), tare da aikin catalytic.Don haka, ana iya amfani da alumina azaman mai ɗaukar hoto, mai kara kuzari da cocatalyst.Gamma kunna alumina zai iya zama foda, granules, tube ko wasu.Za mu iya yi kamar yadda ka bukata.γ-Al2O3, aka kira "kunna alumina", shi ne wani irin porous high watsawa m kayan, saboda ta daidaitacce pore tsarin, babban takamaiman surface area, mai kyau adsorption yi, surface tare da abũbuwan amfãni daga acidity. kuma mai kyau thermal kwanciyar hankali, microporous surface da ake bukata Properties na catalytic mataki, saboda haka zama mafi yadu amfani kara kuzari, mai kara kuzari da kuma chromatography m a cikin sinadaran da kuma man masana'antu, da kuma taka muhimmiyar rawa a cikin man hydrocracking, hydrogenation refining, hydrogenation sake fasalin. Dehydrogenation dauki da mota shaye tsarkakewa tsari.Gamma-Al2O3 ne yadu amfani a matsayin mai kara kuzari m saboda daidaitacce na pore tsarin da surface acidity.Lokacin da γ- Al2O3 aka yi amfani da matsayin m, kuma iya samun effects don tarwatsa da kuma tabbatar da aiki aka gyara, kuma iya samar da acid alkali aiki cibiyar, synergistic dauki tare da catalytic aiki aka gyara.Tsarin pore da kaddarorin saman mai kara kuzari sun dogara da mai ɗaukar hoto na γ-Al2O3, don haka za a sami babban mai ɗaukar hoto don takamaiman halayen motsa jiki ta hanyar sarrafa kaddarorin jigilar gamma alumina.Gamma activated alumina gabaɗaya ana yin sa ne daga precursor pseudo-boehmite ta hanyar 400 ~ 600 ℃ high zafin jiki dehydration, don haka saman physicochemical Properties an fi mayar ƙaddara ta precursor pseudo-boehmite, amma akwai da yawa hanyoyin da za a yi pseudo-boehmite, da daban-daban kafofin. na pseudo-boehmite yana haifar da bambancin gamma - Al2O3.Koyaya, ga waɗancan masu haɓakawa tare da buƙatu na musamman ga mai ɗaukar alumina, dogaro kawai akan sarrafa precursor pseudo-boehmite yana da wahala a cimma, dole ne a ɗauka don prophase shirye-shirye da post aiki hada hanyoyin don daidaita kaddarorin alumina don saduwa da buƙatu daban-daban.Lokacin da yawan zafin jiki ya fi 1000 ℃ da ake amfani da shi, alumina yana faruwa bayan canjin lokaci: γ→δ→θ→α-Al2O3, daga cikinsu akwai γ,δ, θ cubic kusa shiryawa, bambanci kawai ya ta'allaka ne a cikin rarraba ions na aluminum a ciki. tetrahedral da octahedral, don haka waɗannan canje-canjen lokaci baya haifar da bambance-bambancen tsarin.Oxygen ions a cikin alpha zamani kunshin hexagonal kusa shiryawa, aluminum oxide barbashi suna da kabari haduwa, takamaiman surface yankin ya ki sosai.
Adanawa:Ka guji danshi, guje wa gungurawa, jefawa da girgiza kai yayin sufuri, yakamata a shirya wuraren hana ruwan sama.Yakamata a adana shi a cikin busasshen ma'ajin da ke da iska don hana gurɓatawa ko danshi.Kunshin:Nau'in
Jakar filastik
Ganga
Ganga
Super buhu / Jumbo jakar
Bead
25kg/55lb
25 kg / 55 lb
150 kg / 330 lb
750kg/1650lb
900kg/1980lb
1000kg/2200 lb
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Kunna siffa mai siffa alumina gel/High alumina ball/alpha alumina ball
Kunna Siffar Siffar Alumina Gel
don allura a cikin na'urar bushewaYawan yawa (g/1):690Girman raga: 98% 3-5mm (ciki har da 3-4mm 64% da 4-5mm 34%)Matsakaicin farfadowa da muke ba da shawarar shine tsakanin 150 zuwa 200 ℃Iyakar Euiqlibrium na tururin ruwa shine 21%Matsayin Gwaji
HG/T3927-2007
Gwajin Abun
Standard/SPEC
Sakamakon Gwaji
Nau'in
Beads
Beads
Farashin 2O3(%)
≥92
92.1
LOI(%)
≤8.0
7.1
Yawan yawa(g / cm3)
≥0.68
0.69
BET(m2/g)
≥380
410
Girman Pore(cm3/g)
≥0.40
0.41
Ƙarfin Murkushe (N/G)
≥ 130
136
Adsorption na ruwa(%)
≥50
53.0
Asara akan Attrition(%)
≤0.5
0.1
Girman da ya cancanta(%)
≥90
95.0
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Kunna Alumina Adsorbent Don Hydrogen Peroxide
Samfurin abu ne mai fari, mai siffar zobe tare da kadarorin mara guba, mara wari, mara narkewa cikin ruwa da ethanol.The barbashi size ne uniform, da surface ne santsi, da inji ƙarfi ne high, da abty na danshi sha ne mai karfi da kuma ball ba a raba bayan sha ruwa.
Alumina don hydrogen peroxide yana da tashoshi da yawa na capillary da babban yanki, wanda za'a iya amfani dashi azaman adsorbent, desiccant da mai kara kuzari.A lokaci guda kuma, an ƙaddara shi bisa ga polarity na abubuwan da aka tallatawa.Yana da alaƙa mai ƙarfi don ruwa, oxides, acetic acid, alkali, da dai sauransu. Alumina da aka kunna shine nau'in desiccant mai zurfi na micro-water da kuma adsorbent don adsorbing polar molecules.
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Alumina Mai Kunna Don Maganin Ruwa
Samfurin abu ne mai fari, mai siffar zobe tare da kadarorin mara guba, mara wari, mara narkewa cikin ruwa da ethanol.The barbashi size ne uniform, surface ne santsi, da inji ƙarfi ne high, da ikon da danshi sha ne mai karfi da kuma ball ba a raba bayan sha ruwa.
The partical size iya zama 1-3mm, 2-4mm / 3-5mm ko ma karami kamar 0.5-1.0mm.It yana da girma lamba yanki tare da ruwa da kuma takamaiman surface yankin sama da 300m²/g, yana da babban yawa na microspores kuma yana iya tabbatar da adsorption mai ƙarfi da ƙarar ƙarar defluorination zuwa fluorinion a cikin ruwa.
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Ƙwallon alumina mai kunnawa/ Kunna alumina ball desiccant/Wakilin maganin defluorination na ruwa
Samfurin abu ne mai fari, mai siffar zobe tare da kadarorin mara guba, mara wari, mara narkewa cikin ruwa da ethanol.The barbashi size ne uniform, surface ne santsi, da inji ƙarfi ne high, da ikon da danshi sha ne mai karfi da kuma ball ba a raba bayan sha ruwa.
