Cov kev siv tshiab ntawm dichloromethane (DCM) tam sim no tsis yog tsom mus rau kev nthuav dav nws lub luag haujlwm ib txwm ua cov kuab tshuaj tab sis yog ntawm "yuav siv thiab tswj nws li cas kom muaj kev nyab xeeb thiab ua haujlwm tau zoo dua" thiab tshawb nrhiav nws cov txiaj ntsig tshwj xeeb hauv cov teb thev naus laus zis tshwj xeeb.
I. Kev Tsim Kho Tshiab: Ua Ib Lub Cuab Yeej Ua Haujlwm Ntsuab thiab Zoo
Vim nws qhov volatility zoo heev, qhov kub qis, thiab solvency, DCM yog siv ua "kev pabcuam txheej txheem" zoo hauv cov thev naus laus zis tshiab es tsis yog ua ib feem ntawm cov khoom kawg, yog li ntawd txo qhov kev siv tag nrho thiab cov pa phem.
1.Tus Neeg Sawv Cev Devolatilizing Zoo Rau Kev Tsim Polyolefin
Kev Tsim Kho Tshiab: Qee lub tuam txhab tau tsim cov thev naus laus zis uas qhia DCM ua tus neeg sawv cev stripping hauv cov txheej txheem ntsia hlau devolatilization rau polyolefins (piv txwv li, POE).
Qhov Zoo: DCM txo tau cov khoom siv viscosity thiab qhov siab ntawm qhov chaw, ua rau kev tshem tawm cov monomers seem thiab cov organic compounds volatile zoo dua. Cov txheej txheem no tsis tas yuav siv cov khoom siv ntau thiab siv nyiaj tsawg, ua rau nws siv hluav taws xob tsawg dua thiab ua haujlwm tau zoo dua piv rau kev siv lub tshuab nqus tsev lossis kev siv cua sov siab.
2.Cov Tshuaj Tiv Thaiv Ntsuab rau Kev Tsim Tshuaj
Kev Tsim Kho Tshiab: Hauv kev lag luam tshuaj, DCM tseem nyuaj rau hloov pauv tag nrho vim nws muaj peev xwm ua tau nyiaj ntau. Kev tsim kho tshiab no yog kev sib xyaw nrog cov thev naus laus zis ua kom rov ua dua tshiab thiab cov txheej txheem rov ua dua tshiab kom ua tiav kev ncig xyuas kaw.
Daim Ntawv Thov: Ua ke nrog cov tshuaj lom neeg ntws tas mus li thiab cov tshuab ua kom tsis siv neeg, DCM cov kuab tshuaj yog rov ua dua tshiab thiab ntxuav los ntawm cov txheej txheem rov qab ua kom dej noo hauv online, txo qis kev siv ib zaug thiab kev pheej hmoo ntawm kev raug tshuaj.
II. Kev Siv Tshuab Hloov Pauv: Kev Siv Rov Qab Zoo thiab Kev Ua Phem
Ua raws li cov cai ib puag ncig nruj heev, muaj kev hloov pauv tseem ceeb hauv kev siv DCM dua tshiab thiab cov thev naus laus zis kho qhov kawg ntawm cov yeeb nkab.
1.Kev Siv Tshuab Mechanical Vapor Recompression (MVR) Uas Siv Hluav Taws Xob Tau Zoo
Kev Tsim Kho Tshiab: Kev siv tshuab Mechanical Vapor Recompression (MVR) yog siv rau kev rov qab ua kom cov pa roj DCM pov tseg uas muaj cov pa roj ntau.
Qhov Zoo: Cov tshuab cua txias DCM uas tsis xeb thiab ruaj khov heev uas tsim los ntawm cov tuam txhab xws li Chongtong Group tuaj yeem siv lub zog ntawm cov pa dej theem ob dua, txo kev siv zog ua haujlwm ntau dua 40%, ua rau DCM rov qab tau zoo thiab pheej yig.
2.Kev Siv Tshuab Catalytic Degradation Uas Siv Kub Tsawg Thiab Ua Haujlwm Tau Zoo
Kev Tsim Kho Tshiab: Tsim cov tshuaj catalysts tshiab los ua kom DCM puas tsuaj mus ua cov tshuaj tsis muaj teeb meem ntawm qhov kub qis (70-120°C).
III. Cov Ntawv Thov Tshwj Xeeb hauv Kev Tsim Khoom Zoo thiab Cov Khoom Siv Tshiab
Hauv qee qhov chaw ua haujlwm tshiab uas qhov xav tau kev ua haujlwm ntawm cov khoom siv siab heev, DCM cov yam ntxwv tshwj xeeb ua rau nws tsis tuaj yeem hloov pauv tau ib ntus.
1.Kev Ua Khoom Siv Photoelectric
Daim Ntawv Thov: Hauv kev npaj cov roj teeb hnub ci perovskite, cov txheej txheem OLED teeb pom kev zoo, thiab cov photoresists siab kawg, xav tau cov yeeb yaj kiab nyias nyias uas muaj qhov huv heev. Vim nws qhov solubility zoo heev thiab qhov kub nruab nrab rau ntau cov polymers ua tau zoo thiab cov molecules me me, DCM tseem yog ib qho ntawm cov kuab tshuaj nyiam rau kev npaj cov yeeb yaj kiab zoo hauv chaw kuaj mob thiab me me.
2.Kev rho tawm kua dej supercritical
Daim Ntawv Thov: DCM siv tau ua tus hloov kho lossis cov tshuaj sib xyaw ua ke nrog supercritical CO₂ rau kev rho tawm cov tshuaj tshwj xeeb (piv txwv li, alkaloids, cov roj tseem ceeb) los ntawm cov khoom ntuj. Nws cov txiaj ntsig rho tawm thiab kev xaiv zoo dua li cov kua CO₂ ntshiab.
IV. Kev Txheeb Xyuas thiab Kev Xav Txog Yav Tom Ntej
Zuag qhia tag nrho, cov kev siv tshiab ntawm dichloromethane txav mus rau hauv ob qho kev taw qhia meej:
Kev Tsim Kho Tshiab: Hloov ntawm "kev siv qhib" mus rau "kev ncig kaw," siv nws ua cov txheej txheem ua haujlwm zoo ua ke nrog cov thev naus laus zis rov ua dua tshiab, nrog lub hom phiaj kawg ntawm kev txo cov kev siv nyiaj thiab cov pa phem ib puag ncig.
Kev Tsim Kho Tshiab: Tswj nws txoj haujlwm hauv cov teb tshwj xeeb uas muaj thev naus laus zis siab uas nyuaj rau hloov (piv txwv li, cov tshuaj kho mob siab, cov ntaub ntawv photoelectric) los ntawm kev koom ua ke nrog lwm cov thev naus laus zis siab heev los siv nws cov txiaj ntsig tshwj xeeb.
Kev txhim kho yav tom ntej yuav txuas ntxiv mus rau lub ntsiab lus ntawm "kev nyab xeeb dua, ntsuab dua, thiab ua haujlwm tau zoo dua." Ntawm ib sab tes, kev tshawb fawb txog lwm cov tshuaj uas muaj tshuaj lom tsawg dua yuav nce qib, thaum ntawm qhov tod tes, cov thev naus laus zis rau kev siv thiab pov tseg DCM yuav txuas ntxiv mus, txo qis kev pheej hmoo hauv cov xwm txheej uas nws siv tsis tau.
Lub sijhawm tshaj tawm: Cuaj hlis-15-2025