Rotary Evaporator Thiab Asphalt Rov Qab
Dec 13, 2023
Tso lus
Asphalt yog cov khoom siv roj av siv dav hauv txoj kev thiab cov khoom siv hauv tsev. Nyob rau hauv cov txheej txheem ntawm kev tsim thiab siv, nws yog ib qho tsim nyog los hloov asphalt los ntawm ib daim ntawv mus rau lwm qhov, xws li rov qab cov asphalt ntshiab los ntawm kev daws los yog concentrated asphalt.Rotary evaporatoryog ib qho khoom siv feem ntau siv los kho cov asphalt thiab lwm yam tshuaj.
Asphalt yog qhov sib xyaw ua ke, thiab nws cov khoom tseem ceeb yog hydrocarbons, suav nrog polycyclic aromatic hydrocarbons thiab aliphatic hydrocarbons. Nws yog cov residue tsim nyob rau hauv cov txheej txheem ntawm roj av refining thiab muaj cov tshuaj tshwj xeeb.
Cov khoom siv tshuaj
- Siab molecular hnyav: Cov tebchaw hauv asphalt feem ntau muaj qhov hnyav molecular. Vim nws cov qauv complex, lawv tshwm sim li viscous kua los yog semi-khoom nyob rau hauv chav tsev kub.
- Cov ntsiab lus asphalt siab: Asphalt tau txais los ntawm distillation thiab lwm yam kev kho mob ntawm cov roj crude, yog li cov ntsiab lus asphalt hauv asphalt yog siab heev, feem ntau tshaj 90%.
- Thermal stability: Asphalt muaj qhov zoo thermal stability ntawm qhov kub thiab txias, thiab tuaj yeem tiv taus qhov kub ntawm ib puag ncig hauv txoj kev paving lossis kev tsim vaj tsev yam tsis muaj kev hloov pauv.
- Viscosity thiab elasticity: Asphalt muaj viscosity siab thiab elasticity, uas ua rau nws ua raws li txoj kev nto thiab muaj qee qhov yooj, thiab tuaj yeem tiv taus kev ntxhov siab thiab deformation los ntawm kev khiav tsheb thiab kev nyab xeeb.
Muaj nuj nqi
Txoj kev tsim kho: Asphalt yog ib yam khoom siv hauv kev tsim kho, uas yog siv rau paving thiab kho pavement. Nws tuaj yeem muab kev tsav tsheb du thiab ua rau kom muaj zog thiab muaj peev xwm ntawm txoj kev.
Waterproofing thiab anticorrosion: Vim nws zoo adhesion thiab durability, asphalt yog dav siv nyob rau hauv lub teb ntawm waterproofing thiab anticorrosion, xws li ru tsev waterproofing, hauv qab daus moisturizing thiab pipeline txheej.
Cov ntaub ntawv tsim kho: Asphalt tuaj yeem siv los ua cov ntaub ntawv hauv tsev, thiab siv los tsim cov pob zeb asphalt, asphalt shingles, waterproofing membranes, thiab lwm yam.
Daim ntawv thov kev lag luam: Asphalt kuj tau siv dav hauv kev lag luam petrochemical, kev tsim tshuaj lom neeg thiab kev ua roj av, piv txwv li, ua cov ntawv khi, roj nplua nyeem thiab cov khoom siv insulating rau roj av coke.
Raws li lub cev thiab tshuaj lom neeg cov khoom ntawm asphalt, lubrotary evaporatorcais asphalt los ntawm kev daws los ntawm kev siv yam xws li kev sib hloov, cua sov thiab lub tshuab nqus tsev. Tom qab cua sov, asphalt yuav volatilize rau hauv chav thiab rov qab mus rau cov kua daim ntawv los ntawm condenser nyob rau hauv lub tshuab nqus tsev vacuum. Txoj kev no tuaj yeem rov qab tau cov asphalt ntshiab sai thiab ua tau zoo, thiab tseem muaj txiaj ntsig zoo rau kev txuag cov peev txheej thiab txo cov pa phem ib puag ncig.
Ntau cov kuab tshuaj tuaj yeem siv los rov qab asphalt hauv cov evaporator teb. Kev xaiv tshwj xeeb ntawm cov kuab tshuaj yog nyob ntawm tus yam ntxwv ntawm asphalt thiab lub hom phiaj ntawm kev rov ua dua tshiab.
Kev xaiv cov kuab tshuaj ntau
Petroleum ether: Petroleum ether yog ib qho uas nquag siv cov kuab tshuaj tsis haum, uas yog tsim rau kev rov ua dua asphalt uas muaj cov khoom hnyav molecular. Nws muaj tsawg boiling point thiab zoo solubility.
Cov kuab tshuaj sib xyaw: Lub volatility thiab solubility tuaj yeem hloov kho los ntawm kev sib xyaw cov kuab tshuaj sib txawv. Piv txwv li, roj av ether tuaj yeem sib xyaw nrog cov kuab tshuaj xws li acetone thiab toluene los txhim kho cov solubility thiab rov ua haujlwm.
Chlorinated kuab tshuaj: Qee cov tshuaj chlorinated cov kuab tshuaj xws li chloroform thiab dichloromethane kuj tseem siv rau hauv kev rov ua dua asphalt. Lawv muaj qhov zoo solubility thiab volatility, tab sis lawv yuav tsum tau them sai sai rau qhov muaj feem cuam tshuam rau ib puag ncig thiab tib neeg lub cev.
Cov kuab tshuaj tsw qab: Cov kuab tshuaj tsw qab xws li toluene thiab xylene tuaj yeem siv los rov qab asphalt. Lawv muaj qhov zoo solubility thiab volatility, thiab feem ntau yog siv los yaj cov khoom hnyav molecular.
Yam yuav tsum tau xav txog thaum xaiv cov kuab tshuaj
- Solubility: Cov kuab tshuaj yuav tsum muaj peev xwm ua kom yaj cov hom phiaj hauv asphalt.
- Volatility: Lub volatility ntawm cov kuab tshuaj yuav tsum nyob nruab nrab, kom nws thiaj li yooj yim tshem tawm nyob rau hauv tus txheej txheem ntawm rotary evaporation.
- Kev Nyab Xeeb: Xaiv cov kuab tshuaj nrog kev nyab xeeb siab thiab ua raws li cov txheej txheem kev nyab xeeb uas cuam tshuam.
- Kev cuam tshuam ib puag ncig: Ua tib zoo xaiv cov kuab tshuaj uas muaj kev cuam tshuam me me rau ib puag ncig, thiab ua tib zoo tswj cov kuab tshuaj pov tseg.
Cov kauj ruam ua haujlwm tshwj xeeb ntawm asphalt rov qab los ntawm rotovap
1. Kev npaj: Nruab lub rotary evaporation lub raj mis (flask) ntawm cov khoom siv thiab txuas lub tshuab nqus tsev thiab condenser.
2. Ntxiv cov tshuaj: Maj mam ntxiv cov tshuaj uas muaj asphalt rau hauv lub hwj.
3. Kev teeb tsa tsis muaj: Raws li cov yam ntxwv ntawm asphalt thiab kev sim yuav tsum tau ua, teem caij ua haujlwm xws li kev sib hloov ceev, cua sov kub thiab lub tshuab nqus tsev degree.
4. Pib lub tshuab nqus tsev twj tso kua mis: Pib lub tshuab nqus tsev twj tso kua mis los tsim kom muaj qhov tsis zoo ntawm lub tshuab nqus tsev thiab xyuas kom meej tias lub tshuab nqus tsev kawm ntawv ncav cuag tus nqi.
5. Pib qhov kev sib hloov thiab cua sov: Pib cov cuab yeej kev sib hloov thiab cov khoom siv cua sov los ntawm cov txheej txheem tswj, kom lub raj mis pib tig thiab maj mam ua kom sov.
6. Condensation rov qab: Cov evaporated asphalt yog txias los ntawm ib tug condenser thiab re-condensed mus rau hauv lub xeev ua kua, thiab ces sau thiab zoo.
7. Kev saib xyuas kev ua haujlwm: Thaum lub sijhawm ua haujlwm tag nrho, lub xeev khiav ntawm lubRotary evaporatorraug saib xyuas tsis tu ncua, suav nrog cov ntsuas kub, ntsuas ntsuas qhov nqus thiab qhov ntsuas qhov ntsuas.
8. Ua haujlwm tiav: Thaum cov txheej txheem evaporation thiab rho tawm ntawm asphalt ua tau raws li qhov xav tau, tua cov cua sov thiab lub tshuab nqus tsev thiab nres qhov kev sib hloov. Tom qab cov cuab yeej txias txias, lub hwj tuaj yeem muab tshem tawm rau kev kho mob tom ntej.
Yog tias cov ntsiab lus ntawm trichlorethylene residual siab dhau ntawm cov txheej txheem ntawm kev rov qab asphalt, cov kev ntsuas hauv qab no tuaj yeem daws tau.
Kev xaiv cov kuab tshuaj: Thaum rov ua dua asphalt, koj tuaj yeem sim hloov lossis kho cov kuab tshuaj siv. Xaiv cov kuab tshuaj uas tsis tshua muaj volatility thiab tsis tshua muaj cov ntsiab lus los txo cov seem ntawm trichloroethylene.
Kev tswj qhov kub thiab txias: Los ntawm kev tswj cov cua kub hauv cov txheej txheem rov qab, tus nqi evaporation thiab kev sib cais ntawm cov kuab tshuaj thiab asphalt tuaj yeem cuam tshuam. Kho qhov kub kom zoo tuaj yeem pab txo qis cov seem ntawm trichloroethylene.
Nqus tswj: Hauv chav kuaj cov evaporator rotary, ua kom lub tshuab nqus tsev tuaj yeem txhim kho tus nqi evaporation thiab pab kom tshem tawm cov khoom tsis zoo xws li trichloroethylene. Kev ua kom lub tshuab nqus tsev kom zoo tuaj yeem txhim kho qhov teeb meem seem hauv cov txheej txheem kho.
Condenser optimization: xyuas thiab optimize lub condenser system nyob rau hauv lub teb evaporator khoom los xyuas kom meej tias nws yuav ua tau zoo txias thiab condense evaporated tshuaj. Tsim kom raug thiab ua haujlwm ntawm condenser yog pab kom txo tau cov ntsiab lus ntawm cov teeb meem tshuaj xws li trichloroethylene.
Cov tshuaj tiv thaiv dab tsi koj ua nrog lub tshuab evaporator teb? Txhua yam specification, thov hu rau peb ntawmsales@achievechem.com