Mesitylene 98%,Cov tub ntxhais tivthaiv uas yog mesitylene. Nws yog cov organic compound nrog tshuaj C9h12. Nws yog cov kua tsis muaj xim, insoluble hauv dej, soluble hauv ethanol, ether thiab benzene. Nws yog tsuas yog siv los ua ib qho khoom siv hluavtaws organic rau npaj cov mesitylene, ntxiv rau antioxidant, epoxy cob qhia tus neeg sawv cev, Polyester Resin Stabilizer thiab Alkyd Resin Coolizer.
Thaum kawg ntawm 1980s, lub koom haum ntawm Petroleum Anpistry of Heilongjiang Academy ntawm kua theem yog cov khoom siv ua kua nyob rau hauv cov khoom siv raw hauv qab siab. Txawm li cas los xij, vim kev ua haujlwm sib txawv, cov txheej txheem yuav tsum sib cais ntawm catalyst, dej ntxuav, alkylation thiab lwm yam kev ua tiav, thiab tsis muaj. Tsis tas li ntawd, xyoo 1982, Nanjing Refinery siv metatethylene isomerization txoj kev los tsim cov mesitylene. Xyoo 1997, Tianjin University koom tes nrog Hebei Langfang Petrochemical cog rau tsim cov cuab yeej ntsuas kev lag luam nrog cov khoom siv nyiaj txhua hli ntawm 20t mesitylene.
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Tshuaj Cov Qauv |
C9H12 |
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Muaj pes tsawg leej |
120 |
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Molecular hnyav |
120 |
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m/z |
120 (100.0%), 121 (9.7%) |
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Kev Ntsuam Xyuas |
C, 89.94; H, 10.06 |
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Mesitylene 98%(Cov mis nyuj C9h12, tseem muaj lub npe hu ua 1,3,5-trimethyllenzene) yog qhov tsis muaj xim uas yog insoluble hauv dej tab sis soluble hauv ethanol thiab ether. Raws li ib qho tseem ceeb cov khoom siv tshuaj tsw qab, nws cov qauv molecular muaj peb cov khoom sib dhos, ua kom nws muaj cov tshuaj benzene xws li dastics, tshuaj tiv thaiv, thiab ib puag ncig kev tiv thaiv, thiab ib puag ncig kev tiv thaiv, thiab ib puag ncig kev tiv thaiv, thiab ib puag ncig kev tiv thaiv, thiab ib puag ncig kev tiv thaiv, thiab ib puag ncig kev tiv thaiv, thiab ib puag ncig kev tiv thaiv. Kab lus no yuav qhia kev siv ntau yam kev siv ntawm Toluene los ntawm cov ntsiab cai ntawm kev ua haujlwm ntawm cov txheej txheem kev lag luam, thiab kev lag luam kev lag luam.
(1) kev tsim cov tshuaj tiv thaiv ci ntsa iab xiav K-3R: cov zaub mov uas tsim tau los ntawm kev sib txawv xws li sucelation, neveration thiab txo ntawm cov hlau hlau. Cov tshuaj tsw qab amines thiab bromoamines tau condensed nrog chloorous chloride rau cov pab pawg xiav, thiab tom qab ntawd ua kom muaj kev tawm tsam ci ntsa iab xiav K-3R. K-3R yog hom xim tshiab nrog cov xim qaim. Nws yog tsuas yog siv rau luam ntawv thiab khi dying ntawm cellulose fiber ntau, thiab tseem siv rau reactive / disperse Dyeing. Nws yog dav siv txawv teb chaws. Yav dhau los, cov neeg tsis tau siv los ua ke nrog K-3R tau raug ntshuam los ntawm txawv teb chaws. Nrog rau kev txhim kho sai ntawm polyester fiber hauv Suav teb, qhov kev thov rau Mesitylene kuj nce ntxiv.
(2) kev tsim cov kua qaub tsis muaj zog: cov nqaij nyuj nyoos yog nitrated, needralized, txo cov tshuaj txiav Nws yog qhov tsis muaj zog acid rearive xim nrog kev ua tau zoo heev, uas tuaj yeem ua cov ntaub plaub lossis hluavtaws cov khoom muaj zog ci thiab muaj xim. Nws muaj lub teeb ua tau zoo heev, kub tsis kam thiab txheej txheem kev ceev. Yav dhau los, nyoos nyob rau hauv Suav teb yog txhua yam txawv teb, txog 30t ib xyoos, nrog tus nqi raws li qhov siab dua li 136000, Tianjin, Ningbo, lwm qhov chaw tuaj yeem tsim cov nyom los ntawm lawv tus kheej.
Cov nplej uas cov nplej uas ua rau cov neeg sawv cev ua txhaum cai Thaum siv, nws tau npaj rau hauv 20% kev daws nrog tus nqi ntawm 0.5kg ib mu. Fushun tshuaj tua kab yog kawm txog cov ncauj lus no. Yog tias cov khoom no tau ua tiav lawm, ib qho ntau ntawm cov neeg mesitylene yuav tsum muaj. Tam sim no, tus nqi ntawm cov neeg sawv cev sib thooj (20% daws) yog li 3800 yuan / T.
3. Kev tsim khoom ntawm 3,5-dimethylbbenzoic acid:
Lub ntsiab lus melting ntawm 3,5-dimethylbbenzoic acid yog 172℃~ 174 degree. Nws tuaj yeem siv los txhim kho qhov nyuaj ntawm polyurethane, luv luv lub sijhawm tso tawm, thiab hnov mob prostaglandins, thiab hnov mob nrog cov amines los ua ke nrog cov nplaim taws. Tsis tas li ntawd, Mesitylene kuj tseem siv tau los ua ke ua qhov ntsuas hluav taws xob, epoxy cob qhia tus neeg sawv cev, lossis ncaj qha raws li cov kuab tshuaj tshwj xeeb. Kom suav txog, cov neeg tsis tau siv dav. Nws yog ib qho khoom siv tseem ceeb rau kev tsim cov ua kom zoo nkauj ci ntsa iab X-3r, cov kua qaub tsis muaj zog nyoos thiab mesitylene. Nws yog dav siv nyob rau hauv electronics, luam ntawv thiab dyeing, machinery raug, iberospace thiab kev ua liaj ua teb.
Trimethylbenzene ua lub luag haujlwm tseem ceeb hauv kev lag luam zas xim, thiab ua tau zoo dua cov xim muaj zog, lub teeb tiv taus, thiab kub ua rau tuag.
1. Khoom cua ntawm reactive ci ntsa iab xiav k-3r
Trimethylbenzene ingerges sulfonation, nevelation, txo thiab lwm yam kev tawm tsam los tsim cov catalyamino acid nyob rau hauv chloride chloride los ua tus xiav raws qib. Cov nruab nrab no yog tom qab qhib los ntawm kev coj ua los ntawm kev coj ntawm kev coj ua kom kawg ua cov nquag ci ntsa iab xiav K-3R. Cov xim no muaj cov yam ntxwv ntawm kev ci xim thiab siab nrawm, thiab yog siv dav hauv cov ntaub ntawv dyeing thiab luam cov txheej txheem ntawm cov paj rwb thiab viscose fibers.
Piv txwv li, hauv kev luam ntawv thiab zas ntawm polyester fabrics, k}} 3% thiab ua tiav txoj kev ntxuav tawm ntawm cov ntawv nyeem high-kawg.
2. Kev npaj cov qaug zog acidic ci xiav xim nyoos
Trimethylbenzene yog synthesized los ntawm cov kauj ruam xws li nitration, nruab nrab, thiab txo kom ntxiv mus ua ke ntawm nruab nrab ntawm kev thov Vajtswv xiav. Cov xim no muaj kev sib txuam zoo rau cov ntaub plaub thiab cov khoom siv hluavtaws, uas tuaj yeem ua rau cov npuag puv xim, nce lub teeb tiv taus ntawm ntau dua 180 degree. Nws yog tsim nyog rau high -} qhov kub ntawm cov txheej txheem. Raws li kev txheeb cais, kwv yees li 2000 tons ntawm toluene yog siv cov xim nyoos txhua xyoo, suav rau 40% ntawm tag nrho cov kev siv zas xim.
3. Muaj daim ntawv thov kev zas xim nruab nrab
Trimethylbenzene tseem tuaj yeem siv los ua ke thiab cov khoom siv roj ntsha ua ke), uas yog cov khoom siv raw rau ntawm AZO Dyes thiab hlau. Piv txwv li, txuas txuas cov kua qaub nrog P-Nitroaniline tuaj yeem tsim cov ntaub ntawv yeeb yaj kiab daj, uas yog cov khoom siv hauv qab ntawm qib 6. Ntxiv rau nws daim ntawv thov tus nqi ntawm cov chaw muag tshuaj tuag.
Kev ua lag luam yas ua: thev naus laus zis thev naus laus zis thiab ua kom muaj zog
Trimethylbenzene yog tsuas yog siv nyob rau hauv kev lag luam yas los synthesize antioxidants thiab txhawb nqa kev txhim kho ntawm high - kev ua haujlwm polymer.
1. Kev lag luam ntau lawm ntawm Antioxidant 330
Trimethylbenzene thiab 2,6- di {}} treat-terxy-terzene (lub npe hu ua lag luam) Lonox-330). Qhov no antioxidant muaj cov yam ntxwv hauv qab no:
Efficiency:Mesitylene 98%tuaj yeem tswj tau 90% ntawm 180℃thiab haum rau stabilizing kev ua cov polycolefene xws li polyethylene thiab polypropylene;
Tsawg Toxicity: muaj ntawv pov thawj los ntawm Asmeskas FDA thiab tuaj yeem siv raws li cov khoom noj ntim khoom noj;
Qhov ruaj khov: Tsawg tsiv teb chaws tus nqi nyob rau hauv polymers, nrog ntev -} kav lub sijhawm tiv thaiv tshaj 5 xyoos.
Raws li kev tshawb fawb lag luam, lub ntiaj teb antioxidant 330 lub khw yuav tsum tau loj hlob ntawm ib lub CAGT ntawm 2025, nrog kev thov rau cov khoom tso cai txiav nyiaj rau ntau dua 25%.
2. Khoom cua ntawm polyester resin stabilizers
Trimethylbenzene reacts nrog txiv neej anhydride los tsim cov stabin stabilizer, uas tuaj yeem cuam tshuam rau qhov chaw cob qhia ntawm lub sijhawm ua haujlwm. Piv txwv li, hauv zus tau los ntawm cov tsiaj faj cawv plaub hau, ntxiv 0.5% ntawm kev txiav tawm ntawm lub raj mis uas muaj 30% thiab txo cov kev nyab xeeb acetaldehyde los ntawm kev nyab xeeb cov zaub mov muaj kev nyab xeeb rau cov zaub mov hauv dej haus.
3. Daim ntawv thov ntawm Alkyd Resin Coolizer
Trimethylbzene yog esterified nrog polyols (xws li glycerol thiab pentaquathritol) uas tuaj yeem txhim kho qhov yooj yim dua thiab txias tsis kam ntawm lub resin. Hauv nkoj txheej txheej, cov tshuab yas no tuaj yeem ua kom elasticity ntawm cov txheej ntawm {2, tiv thaiv kev tawg, thiab ncua kev tiv thaiv lub neej rau ntau tshaj 10 xyoo.
Raws li ib qho tseem ceeb organic tshuaj raw tshuaj, cov synthesis cov txheej txheem kev ua kom zoo thiab tawg nyob rau hauv tsib pawg hauv qab no. Txhua txoj hau kev nthuav tawm cov txiaj ntsig sib txawv thiab cov kev sib tw hauv cov ntawv thov kev lag luam:
Acetone cov txheej txheem hws yog qhov feem ntau cov xwm txheej hluavtaws ntawm cov acetone catalyszed los ntawm sulfuric acid los yog hydrochloric acid los yog hydrochloric acid los tsim toluene. Thaum sulfuric acid yog siv los ua qhov catalyst hauv cov txheej txheem no, nws yuav tsum tau nqa tawm hauv lub siab kub (180-200 Txawm hais tias lub hydrochloric acid system tuaj yeem shorten lub sij hawm cov tshuaj tiv thaiv lub sijhawm mus rau 4 teev, cov txiaj ntsig txo rau 30%.
Technology Tog: Daim ntawv thov ntawm tantalum phosphate (tapo-1) khoom cov kua qaub acid catalyst tau ua kom zoo dua kev ua tau zoo. Cov catalyst no txo qhov kev ua kom muaj zog ntawm acetone yus tus kheej condensation cov tshuaj tiv thaiv los ntawm 40% los ntawm kev muab cov khoom muaj zog acidic.Mesitylene 98%Yuav ua tiav ib qho 85% hloov dua siab tshiab ntawm acetone thiab ib 78% xaiv rau Toluene tom qab 2 teev ntawm kev tawm tsam ntawm 200 degree. Nyob rau tib lub sijhawm, cov catalyst tseem tuaj yeem rov ua tau ntau dua 10 zaug, daws cov teeb meem ntawm cov khoom siv acid anid cov khoom siv thiab cov khib nyiab acid tiam.
Muaj teeb meem Industrial): TANTALUM PHOPSATIC cov txheej txheem tsim los ntawm pab pawg los ntawm East China ib lub tsev kawm ntawv qib siab tau ua tiav kev sim ntsuas kev ntsuas. Tom qab ua haujlwm tas mus li 500 teev, cov kev ua yeeb yam tsuas yog txo qis los ntawm 59.5%, ntsib cov qauv hauv hluav taws xob.
Lub isomerization txoj kev trimellitene siv cov catalelling catalytic hloov pauv ntawm 10% -15% Trimellitene hauv C9 cov ntxhiab hydrocarbons. Cov pob txha yog cov tshuaj tiv thaiv yog nqa tawm siv zsm-5 molecular sab cib catalyst ntawm 300-400℃thiab 1-3mpa tej yam kev mob los tsim trimellene. Tus yuam sij rau cov txheej txheem no nyob rau hauv cov catalyst: Kaum tus tswv cuab Repranceling, thiab ua tiav cov kev xaiv meta (0.51nm)
Cov txheej txheem optimization: Nanjing Refinner Ni {{}}}}}}} {% thiab ib qho kev tshaj tawm ntawm Toluene txog 32%. Los ntawm coupling distillation dog tshuab, 99.2% kev ua kom dawb huv tuaj yeem tau los ntawm cov khoom tiv thaiv, nrog rau 15% nce ntxiv piv rau cov txheej txheem ib txwm muaj piv rau cov txheej txheem ib txwm muaj.
Kev Ntsuam Xyuas Nyiaj Txiag: Siv catalytic hloov ntawm C9 cov qauv roj ua cov txheej txheem raw los ntawm 20% piv rau txoj kev hws kom haum. Txawm li cas los xij, vim qhov kev txwv ntawm boiling taw tes sib txawv ntawm tsuas 0.5℃ntawm o {} tus me nyuam) thiab txiv laum huab cua lossis cryogenic crystallization (<-100 ℃) is required for purification, resulting in a 30% increase in energy consumption.
Cov friedel Crafts alkylation txoj kev siv kev sib xyaw ntawm laa xyooj ntau tshaj li ntawm 50-80℃nyob rau hauv catalylycation nyob rau hauv catalysis ntawm anhydrouss aluminium trichhloride. Los ntawm kev tswj hwm cov kev piv ntawm cov tshuaj tua hniav ntawm reactants (xyab: chloromethans (5WT%}
Technical bottleneck: Cov tshuaj Trichloride yog qhov nyuaj rau rov qab ua los ntawm hydrolysis cov roj yuav tsum tau nruab nrog cov roj ntsha alkali nqus tau, ua rau muaj kev phom sij hauv kev siv dej kom tsawg. Kev txhawb nqa txhuas tricalyst (alcl3 /- ₂ ₂ ₂ ₂ ₂ ₂ ₂ ₂ ₂ can, thiab ua tiav catalyst rov qab los ntawm kev sib nqus tshuab sib cais. Tom qab 5 mus txog ntawm kev siv, cov haujlwm tsuas yog txo qis los ntawm 8%.
Daim Ntawv Thov Kev Cai: Cov txheej txheem no yog qhov haum rau cov chaw muaj ntau cov peev txheej xylene, xws li North Suav teb. Nws tuaj yeem ua tiav cov kev tsim cov khoom siv ntawm cov khoom siv thiab toluene, thiab txhim kho kev siv cov khoom siv raw rau ntau tshaj 85%.
Qhov kev tsis txaus siab teeb tsa siv 1,2,4-trimethylenzene raws li cov khoom siv ntawm Zeolite catalylal hloov nyob rau hauv 200-300 MPA cov xwm txheej los tsim cov mesitylene thiab tetratoluene. Tus yuam sij rau cov txheej txheem no nyob rau hauv cov acidity: los ntawm kev thauj khoom ntawm benzene thiab trimethylbenion oxide, ua rau muaj kev nce qib ntawm kev xaiv ntawm Trimethylenzene rau 65%.
Kev sib cais: Lub boiling taw tes sib txawv ntawm mesitylene ntawm mesitylene (boiling taw tes 164.7 degree) nyob rau hauv cov tshuaj tiv thaiv khoom yog 32.1 degree. Ob tug pej thuam distillation sib cais tuaj yeem siv: piitylene (puritylene (purity 98.5%) tau muab rho tawm los ntawm thawj tus pej xeem, thiab Tetratoluene (purity 99.0%) tau los ntawm hauv qab ntawm tus pej thuam thib ob.
Tus nqi ua lag luam:Mesitylene 98%yog cov khoom siv tseem ceeb rau polyimide precursor phthalic anhydride (pmda), nrog thoob ntiaj teb xav loj hlob ntawm ib lub CAGR ntawm 8%. Cov kev tsis sib haum kev tawm tsam txoj kev tuaj yeem ua tiav cov Customer ntawm toluene thiab toluene, txhim kho kev lag luam ua haujlwm ntawm cov txheej txheem.
Cim npe nrov: Mesitylene 98% CAS 108-67-8, Cov chaw tsim khoom, chaw tsim khoom, Hoobkas, lag luam Wholesale, yuav, nqe, loj, rau muag