Dab tsi yog ASTM txoj kev distillation?

Lo lus "Astm tus qauv ntawm distillation" feem ntau yog hais txog ib pawg ntawm cov qauv xeem cov qauv tsim los ntawm Astm International tshwj xeeb rau kev txiav txim siabCov yam ntxwv zoo li nontawm cov khoom siv roj av thiab lwm yam kua . qhov feem ntau muaj yog:

ASTM D 86: Txheem cov qauv kev rau distillation ntawm cov roj av thiab cov kua roj rau ntawm atmospheric siab

Lub hom phiaj:Nov yog tusthawj thiab feem ntau sivTxoj Kev {{{{0}}}}}} Cov roj hmab, thiab lwm yam cov ntsiab lus hauv qab daus atmospheric siab .

Lub hauv paus ntsiab lus:100- mL cov qauv yog distilled nyob rau hauv cov neeg tuaj yeem sau tseg tsis zoo rau qhov chaw kub (e {. g {4 4}}, 50%, 90%, thiab cov seem yog tshaj tawm.

Tseem ceeb:Cov txiaj ntsig yog qhov tseem ceeb rau:

Kev tshuaj xyuas cov khoom lag luam zoo thiab xwm txheej li .

Kwv yees kev ua tau zoo (pib, sov-up, nrawm, vapor ntsuas phoo) .

Kwv yees kwv yees sib xyaw (lub teeb / hnyav xaus) .

Kev tswj hwm kev ua kom tsim nyog thiab cov txheej txheem sib tsoo .

Cov Rooj Sib Tham Hluav Taws Xob Hluav Taws Xob Tshwj Xeeb (E {.}}}}, Reid Vapor Siab Correlates Nrog Kev Sib Txawv Pem Hauv Ntej-Kawg).

ASTM D1160: Txoj kev ntsuas qauv rau distillation ntawm cov roj av ntawm cov khoom txo qis

Lub hom phiaj:Siv rauHnyav, hom khoom siv taulossis cov uas muaj cov khoom siv uaskev txiav tximnyob rau hauv lossis qis dua lawv cov cua sov lub siab npau npau npau npau npau npau, cov roj roj, cov roj av, dej khov, thiab Emme {1}

Lub hauv paus ntsiab lus:Distillation yog ua nyob rau hauvtxo qis siab(lub tshuab nqus tsev) {.}}} therm atm crack signific signific signific signific signific signific signific signific point point point point point point point point signific signific signific the the temper the as as temper temper temper temper as temper temper temper temper temper temper temper temper temper temper temper temper temper temper temper temper temper temper temper temper temper temper temper temper (((temper temper temper temper temper as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as as the as as as the the as as the as as as as as as as as်း ca

Tseem ceeb:Muab cov ntaub ntawv muaj txiaj ntsig ntawm cov khoom siv npau npau uas tsis tuaj yeem kuaj los ntawm D 86} {}, thiab kev tswj hwm zoo, thiab kev tswj hwm zoo ntawm kev tswj kom hnyav.

ASTM D7345: Txoj kev ntsuas ntsuas rau distillation ntawm cov roj av thiab kua roj ntawm cov kev ntsuas siab (micro distillation txujci siab)

Lub hom phiaj:Nov yog ib qhoKev Rho Tawm Txoj Kevtsim los txiav txim siab npau taws ntau yam uas siv cov qauv siv me me (ib txwm <1}}

Lub hauv paus ntsiab lus:Siv cov ntsiab lus siv tau zoo raws li cov ntsiab lus chromatography lossis kev txheeb xyuas qhov tseeb dua, txhim kho cov ntaub ntawv ntau dua .

Tseem ceeb:Txhawb nqa raws li lwm txoj kev xaiv rau d 86}}}} Txoj kev xav tau muaj rau d}, thiab txo cov txiaj ntsig, thiab txo cov qauv kev sib txawv (kev txheeb ze) {.

Cov Txheej Txheem Tseem Ceeb ntawm Astm distillation txoj kev:

Qauv:Cov ntsiab lus tshwj xeeb rau cov khoom siv, cov txheej txheem, piv txwv kev sib tham, thiab kev sib piv ntawm cov ua haujlwm sib txawv ntawm cov chaw ua hauj lwm txawv {}}}

Batch distillation:Tag nrho cov koom haum distilling cov piv txwv tsis sib xws ua piv txwv batch .

Cov ntaub ntawv ntau no:Tsim cov ntaub ntawv cov ntsiab lus xws li IBP,% evaporated / rov qab tau ntawm cov kub tshwj xeeb,% seem, thiab EP.

Zoo & Txheej Txheem Tswj:Cov txiaj ntsig yog qhov tseem ceeb rau cov khoom lag luam tshwj xeeb, txheej txheem saib xyuas, thiab daws teeb meem hauv cov roj av thiab kev lag luam .

Kev Ntsuam Xyuas Volatility:Muab cov ntaub ntawv tseem ceeb txog cov khoom siv tsis sib xws, uas cuam tshuam rau kev tuav tshuaj, kev nyab xeeb, thiab kev ua haujlwm {.

Hauv cov ntsiab lus:Thaum ib tug neeg nug txog "Astm txoj kev distillation," lawv feem ntau yuav xa mus rauASTM D 86(atmospheric distillation rau cov roj roj) lossisASTM D1160(Lub tshuab nqus tsev rau cov roj hnyav) .ASTM D7345Puas yog cov niaj hnub ua rau cov neeg siv hluav taws xob niaj hnub no thiab cov kev xaiv ua kom muaj tseeb ntawm cov qauv {1}.