Cov ntsiab lus dej hauv Ntshiab Ethylene
Ntshiab ethylene yog ib yam tshuaj tau los ntawm siab -purity distillation ntawm ethylene monomers. Feem ntau, cov ntsiab lus dej ntawm cov ethylene ntshiab yuav tsum tau tswj qis dua 10 ppm, lub ntsiab lus tsuas yog 10 feem dej ntawm ib lab qhov ntawm cov ethylene ntshiab. Hauv kev tsim khoom lag luam, cov dej noo feem ntau yog tshem tawm los ntawm adsorption siv desiccants.
Qhov cuam tshuam ntawm Moisture ntawm Ntshiab Ethylene
Txawm hais tias cov dej ntsiab lus qis dua 10 ppm, noo noo muaj qhov cuam tshuam loj rau kev tsim khoom thiab siv cov ethylene ntshiab. Ua ntej, noo noo txo qhov zoo ntawm cov ntshiab ethylene vim hais tias nws reacts nrog ethylene monomers los tsim acidic carbonates, ua rau muaj kev ua yuam kev nyob rau hauv roj chromatography tsom xam. Thib ob, noo noo catalyzes polymerization cov tshuaj tiv thaiv, ua rau cov khoom tsis zoo thiab degradation. Thaum kawg, noo noo cuam tshuam rau cov polymer thaum siv, txo nws cov kev ua tau zoo thiab zoo.
Cov txheej txheem txhawm rau txheeb xyuas cov ntsiab lus dej hauv Ntshiab Ethylene
Txhawm rau kom ntseeg tau qhov zoo ntawm ethylene, cov ntsiab lus dej yuav tsum tau kuaj xyuas. Cov kev siv feem ntau suav nrog txoj kev hydrogen volumetric, Karl Fischer txoj kev, coulometric titration, thiab infrared spectrophotometric. Cov txheej txheem no txhua tus muaj lawv qhov zoo thiab qhov tsis zoo; txoj kev tshwj xeeb xaiv nyob ntawm qhov xwm txheej tiag tiag.
Yuav ua li cas kom tsis txhob muaj kev cuam tshuam ntawm noo noo ntawm cov ntshiab ethylene?
Txhawm rau kom tsis txhob muaj kev cuam tshuam ntawm cov dej noo ntawm cov ntshiab ethylene, cov tuam ntxhab thiab cov neeg siv yuav tsum tau ntsuas los txo cov dej noo. Nyob rau hauv cov txheej txheem ntau lawm, distillation tej yam kev mob yuav tsum tau tswj, thiab ib tug zoo desiccant yuav tsum tau siv. Thaum siv, huab cua paug ntawm cov ntshiab ethylene yuav tsum zam kom ntau li ntau tau, thiab cov ntim yuav tsum muab kaw. Tsis tas li ntawd, ntxiv cov stabilizers kuj yog ib txoj hauv kev zoo los txhim kho qhov zoo thiab ruaj khov ntawm cov ntshiab ethylene.
