Dibenzyl Toluene hmoov

Dibenzyltoluene Txheej txheem cej luam

 

Dibenzyltoluene, abbreviated li DBT, nrog rau lus Askiv lub npe Dibenzyltoluene thiab molecular mis C₂₁H₂₀, yog ib qho tshuaj tsw qab hluavtaws uas muaj ntxhiab-hydrocarbon sib tov. Raws li cov khoom lag luam siab kawg hauv tsev neeg benzyltoluene, nws tsuas yog muaj ntau yam isomers. Ntawm qhov kub thiab txias, nws zoo li tsis muaj xim rau daj-daj pob tshab oily kua. Featuring zoo thermal stability, tsis tshua muaj coking nyiam ntawm qhov kub thiab txias, tsis muaj tshuaj lom, nrog rau cov khoom zoo insulating thiab tshav kub-hloov khoom, nws yog ib qho tseem ceeb ntawm cov khoom siv rau high-temperature kua-theem heat-transfer fluids, insulating media rau lub hwj chim capacitors, thiab kua-organic hydrogen-carrier (LOHC) systems.

Cov khoom lag luam muaj nyob hauv cov khoom lag luam poob rau hauv ob qib: qib kub-hloov-kua dej thiab qib capacitor-insulating-roil. Ob qib sib txawv hauv kev tswj hwm cov ntsuas xws li cov kua qaub, cov ntsiab lus ntawm cov dej, qhov hluav taws xob tawg, cov khoom siv boiling tsawg thiab cov kab tsis huv, thiab yuav tsum tsis txhob siv sib hloov ntawm qhov xav tau.

 

Txoj kev lag luam tseem ceeb yog Friedel-Crafts alkylation ntawm toluene nrog benzyl chloride. Selective alkylation ua tau nyob rau hauv lub xub ntiag ntawm ib tug catalyst, ua raws li rectification rau cais monobenzyltoluene, dibenzyltoluene thiab polybenzyltoluene fractions kom tau cov isomer sib tov ntawm dibenzyltoluene.

Tsoos Lewis-acid catalytic txheej txheem: Kev siv thev naus laus zis nrog kev hloov pauv ruaj khov, tsis tau tsim kom muaj ntau cov kua qaub-cov dej khib nyiab thiab ua rau cov nqi kho ib puag ncig zoo. Cov nroj tsuag thaum ntxov Suav feem ntau tau txais txoj kev no.

Solid-acid-catalysed ntsuab synthesis txheej txheem (tshiab-tiam thev naus laus zis): Siv cov khoom siv-acid catalysts kom txo cov khib nyiab-acid paug. Nws muab kev xaiv zoo dua, tsawg dua los ntawm cov khoom lag luam thiab qis qis qis qis-purification loads. Qhov no yog cov thev naus laus zis tseem ceeb rau cov nroj tsuag tshiab hauv Suav teb.

Cov tshuaj tiv thaiv Crude khoom undergoes ntau-kem nruam nqus rectification, lub teeb-kawg tshem tawm, hnyav-kawg tshem tawm, adsorptive decolourisation thiab sib sib zog nqus impurity-tshem tawm los tsim high-purity DBT ntawm tshav kub-hloov-kua qib thiab capacitor-insulating-roj qib. Fine-chemical industrial parks nyob rau hauv Tuam Tshoj leverage integrated mov ntawm benzene- thiab toluene-raws li feedstocks mus cuag ruaj khov nruam ntau lawm.

Qhov sib txawv tseem ceeb ntawm cov qib yog nyob rau hauv kab polar impurities, lub teeb fractions thiab ionic impurities. DBT yog ib qho kev sib xyaw isomer; kev lag luam siv "cov khoom siv tau zoo" es tsis yog "purity" rau cov lus piav qhia tshwj xeeb. Qib Capacitor thiab LOHC hydrogen-storage qib ua kom muaj kev txwv tsis pub muaj kev txwv ntau dua li cov hom phiaj siv hluav taws xob-hloov-kua dej qib thiab yuav tsum tsis txhob txo qis rau lwm txoj kev siv.

Upstream Raw Khoom

Core feedstocks yog toluene thiab benzyl chloride, ua ke nrog cov khoom siv-acid catalysts. Cov nqi ntawm cov khoom noj muaj ntxhiab xws li toluene ncaj qha cuam tshuam rau DBT cov nqi tsim khoom.

Cov ntawv thov hauv qab

High-temperature heat-transfer fluid (kev siv thawj zaug): Raws li cov khoom siv hluav taws xob-aromatic high-temperature heat-transfer fluid, DBT tso cai rau cov yeeb yaj kiab luv luv txog li 350℃thiab pom zoo rau lub sijhawm ntev ntawm cov kua-theem kub ntawm 340 degree. Nws nta muaj zog thermal stability thiab tsis tshua muaj coking nyiam. Nws yog siv nyob rau hauv lub hnub ci zog tsim, cua sov ntawm cov tshuaj tiv thaiv kettles, resin synthesis, chemical-fibre txheej txheem thiab lwm yam high-temperature fine-chemical systems, thiab muaj peev xwm hloov cov khoom sib npaug.

Insulating nruab nrab rau lub hwj chim capacitor: Tsis tshua muaj viscosity, siab tawg voltage thiab zoo low-temperature fluidity. Siv los ua impregnating insulating roj rau high-voltage all-film capacitors nrog zoo heev txias kuj.

Ua kua-organic hydrogen-storage carrier (LOHC): DBT enables reversible hydrogen absorption thiab desorption. Nws yog ib qho kev cog lus ua kua hydrogen-cia nruab nrab tsim nyog rau kev thauj mus los ntev hydrogen-zog thiab khaws cia.

Lwm daim ntawv thov: Tshwj xeeb kub-kub kuab tshuaj, high-temperature cov tshuaj tiv thaiv media, intermediates rau lubricant-roj additives.

DBT yog combustible tab sis tsis flammable. Thaum kub kub nws yuav thermally decompose thiab tso cov ntxhiab tsw-hydrocarbon vapors, thiab tuaj yeem hnov ​​​​mob hnyav nrog cov muaj zog oxidising. Nws raug cais raws li Chav Kawm 9 cov khoom txaus ntshai thiab yuav tsum khaws cia thiab thauj raws li UN 3082.

Cov cai cia khoom: Khaws rau hauv qhov chaw txias, zoo-ventilated warehouses, kom deb ntawm cov oxidizing muaj zog thiab muaj zog acids. Khaws cov ntim ntim ntim kom tsis txhob muaj dej nkag. Khaws ntawm qhov kub thiab txias; zam lub hnub ci ntev ntev thiab cua sov hauv zos.

Hluav taws-tiv thaiv thiab tawg-tiv thaiv: Tiv thaiv overheating thiab cracking nyob rau hauv high-temperature ua hauj lwm tej yam kev mob. Thaum muaj hluav taws kub, cov hmoov qhuav qhuav lossis dej cawv-resistant foam extinguishers yuav siv tau. Inhalation ntawm high-temperature vapors irritates lub ua pa ib ntsuj av.

Kev tiv thaiv kev ua haujlwm: Rov ua dua daim tawv nqaij ntev ntev nrog cov kua dej tuaj yeem ua rau mob plab thiab khaus. Hnav looj tsom iav dub thiab hnab looj tes uas muaj ntxhiab-solvent-resistant thaum tuav. Khaws qhov cua kom txaus hauv qhov chaw ua haujlwm thiab tsis txhob nqus cov vapors kub heev.

Kev cai thauj mus los: Thauj raws li Chav Kawm 9 cov khoom txaus ntshai ntawm UN 3082. Siv IBC cov thawv ntim nruab nrab lossis galvanized steel nruas rau ntim. Tsis txhob thauj khoom ua ke nrog cov tshuaj muaj zog oxidizing; siv cov dej-tiv thaiv kev ntsuas.

Q: Yuav ua li cas xaiv ntawm dibenzyltoluene (DBT) thiab monobenzyltoluene?

A: Ob leeg koom nrog benzyltoluene aromatic-hydrocarbon tsev neeg. Qhov sib txawv tseem ceeb yog thermal-resistance thiab qis-kub kev ua haujlwm. Monobenzyltoluene muaj qhov qis qis qis (qis mus rau −60 degree), uas haum rau qhov pib kub qis, nrog rau lub sijhawm ntev tshaj plaws ntawm cov kua-theem kev pabcuam kub ntawm kwv yees li 300 degree. DBT muab cov thermal stability zoo tshaj plaws: luv luv zaj duab xis kub txog li 350℃thiab pom zoo rau lub sij hawm ntev ntawm cov kua-theem kub ntawm 340 degree, tab sis nws cov ntsiab lus yog siab dua. Ua ntej DBT rau cov txheej txheem kub; xaiv monobenzyltoluene rau cov kab ke hauv thaj tsam alpine nrog rau qhov tsis tshua muaj kub pib-nres. Tsis pub sib pauv yooj yim.

Q: Puas yog cua sov-hloov-kua-qib DBT tuaj yeem siv ncaj qha rau capacitor impregnation?

A: Tsis yog. Thaum tshav kub kub-hloov-kua dej-qib DBT muaj cov kab polar impurities thiab lub teeb fractions uas txo qhov tawg voltage thiab ua rau capacitor aging thiab ib feem tawm ntawm lub neej kev pab cuam. Capacitor-insulating-roil-grade DBT undergoes tob tshem tawm cov polar impurities, tswj nruj me ntsis acid nqi thiab dej cov ntsiab lus, thiab tshwj xeeb kev ntsuam xyuas hluav taws xob-kev ua tau zoo. Tsuas yog qib capacitor tshwj xeeb yuav tsum tau txais.

Q: Dab tsi yog qhov kev lag luam zoo ntawm Suav dibenzyltoluene ntau lawm?

A: Tuam Tshoj yog ib qho ntawm lub ntiaj teb loj DBT ntau lawm puag nrog zoo kawg li kev lag luam-chain zoo. Muaj txaus cov khoom siv hauv tsev ntawm cov toluene thiab cov khoom noj uas muaj ntxhiab-hydrocarbon feedstocks yog muaj, txhawb nqa los ntawm cov chaw tsim khoom zoo-tshuaj lom neeg hauv East China. Cov txheej txheem tshiab-acid-catalysed yog maj mam hloov cov thev naus laus zis niaj hnub. Mature domestic purification technologies pab kom ruaj khov loj ntawm tag nrho cov khoom portfolio: tshav kub-hloov-kua qib, capacitor-insulating-roj qib thiab high-purity LOHC qib. Kev vam khom rau cov khoom lag luam tuaj txawv teb chaws tau txo qis heev. Cov khoom xa tuaj ruaj khov loj muaj nyob ua ke nrog cov ntaub ntawv ua tiav suav nrog REACH sau npe, SDS thiab COA. 7DCHEM leverages Tuam Tshoj lub DBT cov saw hlau ua ke nrog nws cov chaw muag khoom txawv teb chaws hauv tebchaws Poland los muab cov xov xwm kub-hloov tshwj xeeb thiab cov roj insulating rau Central- thiab Eastern-European cov neeg siv khoom.

Lub cev-cov khoom vaj khoom tsev, txheej txheem thiab kev lag luam-chain cov ntaub ntawv nyob rau hauv daim ntawv qhia kev paub no yog muab tso ua ke los ntawm pej xeem-muaj peev xwm tso cai rau siv xwb:

ICSC International Chemical Safety Cards, ChemicalBook Physical-Property Database (CAS 26898-17-9) - Cov yam ntxwv ntawm lub cev thiab kev phom sij

Thawj-tus neeg tsim khoom siv phau ntawv qhia rau cov khoom siv hluav taws xob hluav taws xob hluav taws xob hloov hluav taws xob siab; Cov qauv hauv Suav teb muaj feem xyuam rau cov kua dej kub hloov pauv (GB series)

Tuam Tshoj Tshwj Xeeb Thaum tshav kub kub-Thermal-Fluid & Fais Fab-Capacitor-Medium Kev Lag Luam Kev Tshawb Fawb Daim Ntawv Qhia (2025-2026) - muaj peev xwm ntau lawm, cov txheej txheem thiab cov qauv hauv qab-kev lag luam

• Tshawb nrhiav Shanghai Dingwujin Chemical Co., Ltd. organic-solvents khoom,Dibenzyltoluene