Cov khoom
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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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Transfluthrin
Lub Npe Khoom CAS Nr. Feem pua yuav tsum muaj Lus Cim Transfluthrin 118712-89-3 99% Tus Qauv Txheeb Xyuas Qhia txog Transfluthrin, qhov kev daws teeb meem zoo tshaj plaws rau kev tswj kab tsuag. Transfluthrin yog ib hom tshuaj tua kab muaj zog uas tua tau ntau yam kab tsuag, suav nrog yoov tshaj cum, yoov yoov, npauj npaim, thiab lwm yam kab uas ya tau. Nrog nws cov mis ua haujlwm sai, Transfluthrin muab kev pab sai thiab ntev los ntawm kev kis kab tsuag, ua rau nws yog ib yam khoom tseem ceeb rau tsev, lag luam, thiab chaw sab nraum zoov.
Transfluthrin yog ib hom tshuaj tua kab pyrethroid uas paub zoo txog nws txoj kev ua haujlwm zoo thiab kev nyab xeeb. Nws ua haujlwm los ntawm kev cuam tshuam cov hlab ntsha ntawm cov kab, ua rau lawv tuag tes tuag taw thiab thaum kawg tuag. Qhov no txhais tau tias Transfluthrin tuaj yeem tua cov kab tsuag sai thiab zoo yam tsis muaj kev phom sij rau tib neeg lossis tsiaj thaum siv raws li cov lus qhia.
Ib qho ntawm cov yam ntxwv tseem ceeb ntawm Transfluthrin yog nws qhov ua tau ntau yam. Nws tuaj yeem siv tau ntau yam, suav nrog ua tshuaj tsuag, ua pa, lossis ua cov khoom xyaw nquag hauv cov tshuaj tua yoov tshaj cum thiab cov lev. Qhov no ua rau nws haum rau ntau yam kev siv, txawm tias nws yog rau sab hauv tsev lossis sab nraum zoov. Tsis tas li ntawd, Transfluthrin muaj nyob rau hauv ntau qhov sib txawv, tso cai rau cov neeg siv xaiv qhov muaj zog tshaj plaws raws li lawv cov kev xav tau tshwj xeeb.
Tshuaj Transfluthrin muaj txiaj ntsig zoo rau cov yoov tshaj cum, uas yog cov uas muaj ntau yam kab mob xws li mob malaria, mob dengue, thiab mob Zika. Los ntawm kev siv tshuaj Transfluthrin, cov tib neeg thiab cov zej zog tuaj yeem txo qhov kev pheej hmoo ntawm cov kab mob uas kis los ntawm yoov tshaj cum thiab txaus siab rau qhov chaw nyob uas muaj kev nyab xeeb thiab xis nyob dua.
Tsis tas li ntawd xwb, Transfluthrin muaj cov txiaj ntsig seem, uas txhais tau tias nws tseem tiv thaiv kab tsuag tau ntev tom qab siv. Qhov no ua rau nws yog ib qho kev daws teeb meem zoo tshaj plaws rau kev tswj kab tsuag, tshwj xeeb tshaj yog nyob rau thaj chaw uas muaj kab tsuag ntau zaus.
Ntxiv rau nws txoj kev ua haujlwm zoo, Transfluthrin kuj yooj yim siv. Nws cov qauv yooj yim rau tus neeg siv ua rau nws yooj yim siv, txawm tias nws yog txau ncaj qha rau ntawm qhov chaw, siv nws hauv cov vaporizers, lossis muab nws tso rau hauv lwm yam khoom tswj kab tsuag. Qhov yooj yim no ua rau Transfluthrin yog qhov kev xaiv zoo rau cov neeg ua haujlwm tswj kab tsuag thiab cov neeg siv khoom ib leeg.
Tsis tas li ntawd xwb, Transfluthrin yog tsim los kom txo qhov cuam tshuam rau ib puag ncig. Nws muaj tshuaj lom tsawg rau cov tsiaj txhu thiab tau ua pov thawj tias muaj cov teebmeem tsis zoo rau cov tsiaj uas tsis yog lub hom phiaj thaum siv lub luag haujlwm. Qhov no txhais tau tias cov neeg siv tuaj yeem muaj kev thaj yeeb nyab xeeb thaum paub tias lawv siv cov khoom uas tsis yog tsuas yog ua tau zoo xwb tab sis kuj muaj lub luag haujlwm rau ib puag ncig.
Xaus lus, nrog nws cov txiaj ntsig zoo tshaj plaws, kev siv tau ntau yam, thiab kev nyab xeeb, Transfluthrin yog qhov kev daws teeb meem zoo tshaj plaws rau kev tswj kab tsuag. Txawm hais tias nws yog rau kev tswj yoov tshaj cum, yoov, npauj npaim, lossis lwm yam kab uas ya, Transfluthrin muab cov txiaj ntsig txhim khu kev qha thiab kav ntev. Yog li, yog tias koj tab tom nrhiav cov tshuaj tua kab muaj zog thiab ntseeg tau, tsis txhob nrhiav ntxiv lawm tsuas yog Transfluthrin. Sim nws tam sim no thiab paub txog qhov txawv uas nws tuaj yeem ua rau koj cov kev siv zog tswj kab tsuag.
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Meperfluthrin
Lub Npe Khoom CAS Nr. Feem pua yuav tsum muaj Lus Cim Meperfluthrin 352271-52-499% Tus Qauv Txheeb Xyuas Qhia txog Meperfluthrin, ib yam tshuaj tua kab uas muaj zog thiab zoo heev uas tiv thaiv tau ntau yam kab tsuag tau ntev. Meperfluthrin yog ib hom tshuaj pyrethroid uas tsim los ntawm cov tshuaj, uas paub txog nws cov khoom tua kab zoo heev thiab muaj tshuaj lom tsawg rau cov tsiaj txhu. Nws yog ib yam khoom xyaw nquag siv hauv ntau yam tshuaj tua kab hauv tsev, suav nrog cov tshuaj zawv plaub, cov ntaub pua plag, thiab cov kua dej.
Meperfluthrin ua haujlwm los ntawm kev cuam tshuam lub paj hlwb ntawm cov kab, ua rau tuag tes tuag taw thiab thaum kawg tuag. Qhov no ua rau nws muaj txiaj ntsig zoo kawg nkaus rau kev tswj thiab tshem tawm cov kab tsuag xws li yoov tshaj cum, yoov, kab laum, thiab lwm yam kab uas ya thiab nkag. Meperfluthrin muaj cov nyhuv knockdown sai, txhais tau tias nws sai sai immobilizes thiab tua cov kab thaum kov, muab kev pab tam sim ntawd los ntawm kev kis kab tsuag.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm Meperfluthrin yog nws cov dej num uas kav ntev. Thaum siv tas, nws tseem ua haujlwm tau ntev, muab kev tiv thaiv kab tsuag tas mus li. Qhov no ua rau nws yog qhov kev daws teeb meem zoo tshaj plaws rau kev siv sab hauv tsev thiab sab nraum zoov, vim nws tuaj yeem pab tsim kom muaj ib puag ncig tsis muaj kab tsuag rau tsev, vaj, thiab chaw ua lag luam.
Meperfluthrin muaj ntau hom tshuaj, suav nrog cov kauj, cov ntaub pua plag, thiab cov kua ua pa. Cov khoom no yooj yim siv thiab siv tau yooj yim, ua rau lawv haum rau kev siv tus kheej thiab kev ua haujlwm. Cov kauj thiab cov ntaub pua plag uas muaj Meperfluthrin yog cov khoom nrov tshwj xeeb hauv cov cheeb tsam uas muaj cov kab mob kis los ntawm yoov tshaj cum, vim tias lawv muab txoj hauv kev yooj yim thiab zoo los tua cov yoov tshaj cum thiab txo qhov kev pheej hmoo ntawm kev kis kab mob.
Ntxiv rau nws cov khoom tua kab, Meperfluthrin kuj paub txog nws cov ntxhiab tsw qab thiab tsis tshua muaj zog, ua rau nws yog qhov kev xaiv zoo thiab muaj kev nyab xeeb rau kev siv sab hauv tsev. Tsis zoo li lwm cov tshuaj tua kab, Meperfluthrin tsis tsim cov ntxhiab tsw lossis pa phem, ua rau nws xis nyob dua rau cov neeg siv thiab lawv tsev neeg. Qhov no ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov tsev neeg uas muaj menyuam yaus thiab tsiaj txhu, vim nws txo qhov kev pheej hmoo ntawm kev raug cov tshuaj lom neeg.
Meperfluthrin kuj tseem zoo rau ib puag ncig, vim nws lwj sai sai hauv ib puag ncig thiab tsis tso cov khoom seem tseg. Qhov no ua rau nws yog ib qho kev xaiv zoo rau kev tswj kab tsuag, vim nws txo qhov cuam tshuam rau lub ecosystem thiab txhawb nqa kev coj ua tswj kab tsuag kom ruaj khov.
Thaum siv cov khoom lag luam Meperfluthrin, nws yog ib qho tseem ceeb uas yuav tsum ua raws li cov lus qhia uas tus neeg tsim khoom muab thiab ua raws li cov kev ceev faj tsim nyog kom ntseeg tau tias siv tau zoo thiab muaj kev nyab xeeb. Nws raug pom zoo kom tsis txhob kov cov tawv nqaij ncaj qha nrog cov khoom lag luam thiab siv lawv rau hauv qhov chaw uas muaj cua nkag tau zoo. Tsis tas li ntawd, nws yog ib qho tseem ceeb uas yuav tsum khaws cov khoom lag luam rau hauv qhov chaw nyab xeeb, kom deb ntawm cov menyuam yaus thiab tsiaj txhu.
Zuag qhia tag nrho, Meperfluthrin yog ib qho tshuaj zoo heev, muaj kev nyab xeeb, thiab yooj yim rau kev tswj thiab tshem tawm ntau yam kab tsuag. Txawm yog siv rau tus kheej lossis kev ua haujlwm, cov khoom siv Meperfluthrin muab kev tiv thaiv kab tsuag zoo thiab ntev, pab tsim kom muaj kev noj qab haus huv thiab xis nyob dua thiab ua haujlwm tau zoo dua.
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Kev txhawb nqa catalyst Alpha alumina
α-Al2O3 yog ib yam khoom siv uas muaj qhov ntxeem tau, uas feem ntau siv los txhawb cov catalysts, adsorbents, cov khoom siv sib cais roj, thiab lwm yam. α-Al2O3 yog theem ruaj khov tshaj plaws ntawm txhua yam alumina thiab feem ntau yog siv los txhawb cov khoom siv catalyst nrog qhov sib piv siab. Qhov loj me ntawm α-Al2O3 catalyst carrier yog loj dua li txoj kev dawb molecular, thiab kev faib tawm yog sib xws, yog li qhov teeb meem diffusion sab hauv los ntawm qhov me me hauv qhov system catalytic reaction tuaj yeem tshem tawm zoo dua, thiab cov tshuaj tiv thaiv oxidation tob tuaj yeem txo qis hauv cov txheej txheem rau lub hom phiaj ntawm kev xaiv oxidation. Piv txwv li, cov nyiaj catalyst siv rau ethylene oxidation rau ethylene oxide siv α-Al2O3 ua tus cab kuj. Nws feem ntau siv rau hauv catalytic reactions nrog qhov kub siab thiab kev tswj hwm diffusion sab nraud.
Cov Ntaub Ntawv Khoom
Thaj Chaw Tshwj Xeeb 4-10 m²/g Qhov Ntim Qhov Hnyav 0.02-0.05 g/cm³ Duab Spherical, cylindrical, rascated ring, thiab lwm yam Alpha ntxuav ≥99% Na2O3 ≤0.05% SiO2 ≤0.01% Fe2O3 ≤0.01% Kev tsim khoom tuaj yeem hloov kho raws li qhov yuav tsum tau ua ntawm cov ntsuas -
(CMS) PSA Nitrogen Adsorbent Carbon Molecular Sieve
* Zeolite molecular sieves
*Tus nqi zoo
* Chaw nres nkoj ShanghaiLub Carbon molecular sieve yog ib yam khoom uas muaj cov qhov me me ntawm qhov loj me thiab sib npaug uas siv los ua cov pa roj. Thaum lub siab siab txaus, cov pa oxygen, uas hla dhau cov qhov ntawm CMS sai dua li cov pa nitrogen, raug adsorbed, thaum cov pa nitrogen tawm los yuav raug nplua nuj hauv theem roj. Cov pa oxygen nplua nuj, uas CMS adsorbed, yuav raug tso tawm los ntawm kev txo qhov siab. Tom qab ntawd CMS rov tsim dua thiab npaj rau lwm lub voj voog ntawm kev tsim cov pa nitrogen nplua nuj.
Cov khoom siv lub cev
Txoj kab uas hla ntawm CMS granule: 1.7-1.8 hli
Lub sijhawm ntawm adsorption: 120S
Qhov ceev ntawm cov khoom loj: 680-700g/L
Lub zog compressive: ≥ 95N / granuleKev Ntsuas Txuj Ci
Hom
Lub zog nqus dej
(Mpa)Kev ntsuas nitrogen
(N2%)Qhov ntau ntawm cov pa nitrogen
(NM3/ht)N2/Cua
(%)CMS-180
0.6
99.9
95
27
99.5
170
38
99
267
43
0.8
99.9
110
26
99.5
200
37
99
290
42
CMS-190
0.6
99.9
110
30
99.5
185
39
99
280
42
0.8
99.9
120
29
99.5
210
37
99
310
40
CMS-200
0.6
99.9
120
32
99.5
200
42
99
300
48
0.8
99.9
130
31
99.5
235
40
99
340
46
CMS-210
0.6
99.9
128
32
99.5
210
42
99
317
48
0.8
99.9
139
31
99.5
243
42
99
357
45
CMS-220
0.6
99.9
135
33
99.5
220
41
99
330
44
0.8
99.9
145
30
99.5
252
41
99
370
47
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ZSM-35
ZSM-35 molecular sieve muaj kev ruaj khov hydrothermal zoo, thermal stability, pore qauv thiab acidity tsim nyog, thiab tuaj yeem siv rau kev xaiv cracking / isomerization ntawm alkanes.
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ZSM-48
ZSM-48 molecular sieve muaj kev ruaj khov hydrothermal zoo, thermal stability, pore qauv thiab acidity tsim nyog, thiab tuaj yeem siv rau kev xaiv cracking / isomerization ntawm alkanes.
