Acetone yog cov kua tsis muaj xim thiab pob tshab ntawm chav tsev kub. Nws yog volatile, flammable thiab muaj ib tug me ntsis aroma. Nws tuaj yeem yaj cov roj, roj, resin, roj hmab, cellulose acetate thiab cellulose nitrate, thiab lwm yam. Nws tuaj yeem yaj hauv dej thiab yog ib qho tseem ceeb ntawm cov organic hnyav. Flammable, nws yog ib tug polar hnyav uas muaj peev xwm cuam tshuam nrog lwm cov polar los yog ib nrab polar solutes vim yog carbonyl pawg nyob rau hauv nws molecule. Cov khoom no ua rau acetone siv dav hauv kev lag luam thiab chaw kuaj mob, tshwj xeeb tshaj yog cov kuab tshuaj thiab cov tshuaj tiv thaiv nruab nrab. Txawm li cas los xij, vim nws qhov volatility thiab flammability, nws yuav tsum tau ceev faj. Acetone hnyav yog dav siv nyob rau hauv kev lag luam thiab feem ntau yog siv nyob rau hauv kev tsim cov txheej adhesives, ntxuav thiab decontamination nyob rau hauv lub electronics kev lag luam, tshuaj synthesis thiab luam ntawv number case solvents.
Kev ziab kom qhuav thiab tshem tawm dej
1. Acetone tov yog rhiab heev rau ya raws. Cov tshuaj tiv thaiv ntawm acetone thiab dej yuav tsim hydrates, uas yuav cuam tshuam rau cov khoom thiab kev siv ntawm acetone.
2. Nyob rau hauv cov txheej txheem tsim khoom, muaj cov kev cai nruj heev ntawm purity thiab noo noo cov ntsiab lus ntawm acetone hnyav. Lub xub ntiag ntawm noo noo tuaj yeem ua rau muaj kev xav tsis zoo hauv kev tsim khoom, cuam tshuam rau qhov zoo ntawm cov khoom kawg. Yog li ntawd, txhawm rau ua kom muaj txiaj ntsig ntawm acetone hauv cov ntawv thov kev lag luam, purity thiab stability ntawm acetone feedstock yuav tsum tau khaws cia.
Yuav ua li cas tshem dej los ntawm cov kuab tshuaj
1. Ntxiv cov txheej txheem dehydrating xws li sodium hydroxide lossis calcium hydroxide rau hauv cov tshuaj kom ua kom dej nag thiab cais cov dej.
2. Tshem tawm cov dej los ntawm cov tshuaj acetone los ntawm boiling distillation.
3. Dhau cov roj inert los ntawm cov tshuaj acetone kom cov roj tshem tawm cov dej noo.
4. Siv cov desiccant kom nqus tau, xws li anhydrous sodium sulfate, silica gel, molecular sieve, thiab lwm yam, ncaj qha ntxiv rau cov tshuaj acetone, adsorb cov dej rau cov desiccant, thiab ces cais cov desiccant.
Los ntawm kev pom ntawm daim ntawv thov kev lag luam, molecular sieve adsorbents muaj cov nyhuv ziab zoo tshaj plaws, tus nqi qis tshaj, thiab cov txiaj ntsig zoo tshaj plaws.
1. Kev ua haujlwm yooj yim:
Molecular sieves muaj meej xaiv adsorption zog.Molecular sievestuaj yeem xaiv adsorb dej molecules yam tsis muaj kev cuam tshuam rau lub xub ntiag ntawm acetone molecules.
2. High adsorption efficiency:
Molecular sieves muaj peev xwm adsorption siab heev thiab tuaj yeem ua tiav tshem tawm cov dej noo hauv lub sijhawm luv luv.
3. High adsorption raug:
Tom qab lub molecular sieve yog tag nrho activated, nws noo noo adsorption muaj peev xwm yog siab dua lwm yam ntaub ntawv adsorption. Kev kho acetone hnyav tuaj yeem ncav cuag ppm qib dej cov ntsiab lus.
4. Tus nqi qis tag nrho:
Tom qab molecular sieve yog saturated nrog adsorption, nws tuaj yeem rov tsim dua los ntawm lwm txoj kev. Kev pabcuam lub neej ntawm cov khoom zoo molecular sieves tuaj yeem ncav cuag kaum tawm txhiab teev.Txoj kev molecular sieve adsorption ziab yog tshwj xeeb tshaj yog haum rau kev siv tshuaj lom neeg uas muaj cov kev cai nruj heev ntawm cov dej noo ntawm cov tshuaj daws teeb meem.
Cov haujlwm tshwj xeeb yuav tsum tau sau tseg:
1. Xaiv tus qauv kom raug thiab zoo molecular sieve. Lub cheeb molecular ntawm acetone yog hais txog 0.6 nanometers. Nws raug pom zoo kom siv 4A molecular sieve desiccant, uas yog tus nqi zoo tshaj plaws.
2. Thaum cov tshuaj acetone ntws los ntawm molecular sieve tank rau ziab, nws yuav tsum tau lim ua ntej kom ntseeg tau tias feem ntau ntawm cov dej, tshem tawm cov khib nyiab thiab impurities tau raug tshem tawm los ntawm cov tshuaj tiv thaiv kom qhuav cov nyhuv ntawm molecular sieve los ntawm kev ua. cuam tshuam.
3. Thaum lub sij hawm ziab thiab cov txheej txheem rov tsim dua tshiab, kev saib xyuas yuav tsum tau them rau kev tswj xyuas qhov kub thiab txias. Qhov kub thiab txias heev yuav cuam tshuam rau cov nyhuv adsorption, thiab qhov kub tsis txaus yuav txo qhov ua kom muaj zog thiab rov tsim dua tshiab.
4. Molecular sieve adsorption thiab ziab yog ib qho kev coj cwj pwm ntawm lub cev. Cov tshuaj acetone ntws los ntawm molecular sieve xav tau los tswj lub sijhawm sib cuag tsim nyog kom paub meej lub sijhawm sib cuag txaus.
5. Txij li thaum acetone yog nplaim taws, yuav tsum tau ua raws li cov txheej txheem kev nyab xeeb thaum lub sijhawm ua haujlwm, ua kom muaj cua zoo, thiab siv cov kev tiv thaiv tsim nyog, xws li hnav tsom iav thiab hnab looj tes.