Kev siv o-xylene hauv plastics yog dab tsi?
CAS 95-47-6 o-Xylene Chemicalyog ib qho aromatic hydrocarbon dav siv hauv kev lag luam tshuaj. Ua cov khoom siv tseem ceeb hauv cov khoom siv yas, o-xylene feem ntau yog ua haujlwm hauv kev tsim cov phthalic anhydride (PA)-ib qho nruab nrab tsis tseem ceeb hauv kev tsim cov yas.
Kev siv thawj zaug ntawm o-Xylene (Plasticizers):
Tshaj 80% ntawm o-xylene yog siv los tsimphthalic anhydride, uas yog hloov dua siab tshiab rau hauv plasticizers uas ua kom nruj PVC mos thiab hloov tau.
PA Phthalic anhydride yog ib qho tseem ceeb nruab nrab siv los tsim:
- Plasticizers(tshwj xeeb yog phthalate plasticizers)
- PVC compounds
- Unsaturated polyester resins
- Alkyd resins
Cov ntawv thov tshwj xeeb ntawm ortho-xylene hauv kev lag luam plastics tau piav qhia raws li hauv qab no:
1. Raw Khoom rau Phthalic Anhydride (PA) ntau lawm
O-xylene (CAS 95-47-6) ua haujlwm feem ntau yog petrochemical feedstock rau kev tsim phthalic anhydride (PA) los ntawm cov txheej txheem oxidation catalytic. Hauv cov txheej txheem no, ob pawg methyl nyob rau ntawm lub nplhaib uas muaj ntxhiab tau raug xaiv oxidation cov tshuaj tiv thaiv raws li kev tswj hwm kev lag luam.
2. Qhov tseem ceeb nruab nrab hauv cov txheej txheem Aromatic Oxidation
Nyob rau hauv kev lag luam organic chemistry, o-xylene, ua ib qho ortho- hloov cov ntxhiab hydrocarbon, yog qhov tsim nyog rau cov pa roj- theem catalytic oxidation cov tshuaj tiv thaiv loj hauv - nplai phthalic anhydride ntau lawm.
3. Upstream Feedstock rau Plasticizers
Thoob plaws ntiaj teb, ntau dua 80% ntawm o-xylene yog siv los tsim cov phthalic anhydride; Tom qab ntawd, cov phthalic anhydride no dhau esterification cov tshuaj tiv thaiv nrog cawv kom tawm los phthalate plasticizers. Cov plasticizers no yog cov khoom siv tseem ceeb, siv feem ntau los txhim kho qhov yooj yim ntawm cov ntaub ntawv polyvinyl chloride (PVC).
4. Muaj txheej txheem saw hauv Plastics Manufacturing
Cov txheej txheem ntau lawm tuaj yeem sau tau raws li hauv qab no:
O-xylene → Catalytic Oxidation → Phthalic Anhydride (PA) → Esterification → Plasticizers → Flexible PVC khoom
5. Lub luag hauj lwm hauv kev lag luam Polymer (Indirect Application)
Ortho xylene nws tus kheej tsis yog ncaj qha koom nrog ua ib feem rau hauv cov khoom yas kawg. Nws tus nqi yog nyob rau hauv kev ua kom cov dej ntws hauv cov tshuaj hloov pauv uas hloov cov khoom siv hluav taws xob ntawm cov khoom siv polymers- xws li hloov tau yooj yim, softness, thiab kev ua tau zoo.
6. Daim ntawv thov hauv Resin thiab Chemical Manufacturing
Phenylic anhydride, tsim los ntawm o-xylene, muaj cov khoom siv qis qis uas tau siv dav hauv kev tsim cov polyester resins, alkyd resins, coatings, thiab yas hloov tshuab; cov khoom no yog siv rau hauv kev lag luam xws li kev tsim kho, tsheb, thiab ntim khoom.
Cov ntsiab lus
O-Xylene (ortho-xylene)plays lub luag haujlwm tseem ceeb hauv kev lag luam yas ua cov tshuaj lom neeg nruab nrab thiab hnyav, tshwj xeeb tshaj yog hauv kev tsim cov yas yas, cov ntaub ntawv PVC, thiab polyester resins. Txawm hais tias nws tsis yog cov yas tiav, nws cov khoom qis qis yog qhov tseem ceeb rau kev tsim cov yas niaj hnub.
Vim li cas o-Xylene siv hauv Kev Lag Luam Plastics
o-Xylene (CAS 95-47-6)yog siv hauv kev lag luam plastics vim nws cov ortho- hloov cov qauv uas muaj ntxhiab, uas tso cai rau ob pawg methyl mus rau catalytic oxidation raws li kev lag luam.
1. Oxidation reactivity
Ortho xylene tuaj yeem hloov pauv tau ntawm huab cua thiab vanadium-raws li catalyst rau phthalic anhydride (PA), cov tshuaj tseem ceeb nruab nrab.
2. Txhais txoj kev lag luam
Txoj kev tshuaj tiv thaiv tseem ceeb yog ruaj khov thiab siv dav:
o-Xylene → Phthalic anhydride → Phthalate esters → Plasticizers
3. Lub luag haujlwm hauv kev lag luam yas
Phthalic anhydride derivatives yog siv los tsim cov yas yas rau PVC, uas kho tau yooj yim thiab kev ua haujlwm.
Technical Properties
| Khoom | Tus nqi / Nqe lus piav qhia |
|---|---|
| Tshuaj npe | o-Xylene (Ortho-Xylene) |
| CAS Nr | 95-47-6 |
| Molecular Formula | C₈H₁₀ |
| Molecular Luj | 106.16 g / mol |
| Qhov tshwm sim | Colorless pob tshab kua |
| tsw | Cov ntxhiab tsw |
| Qhov ntom | ~ 0.88g / cm³ (20 degree) |
| Boiling Point | ~ 144-145 ° C |
| Melting Point | ~-25 degree |
| Flash Point | ~ 29℃(kaw khob) |
| Solubility hauv dej | Insoluble |
| Vapor Siab | Nruab nrab (volatile organic compound) |
| Hom tshuaj | Aromatic hydrocarbon (xylene isomer) |
| Main Industrial Reaction | Catalytic oxidation rau phthalic anhydride |
| Kev cia khoom | Txias, qhuav, zoo- qhov chaw cua, nyob deb ntawm qhov hluav taws kub |
FAQ
1. Cov ntawv thov kev lag luam tseem ceeb ntawm Ortho-xylene (CAS 95-47-6) yog dab tsi?
Nws feem ntau yog siv los ua khoom noj rau kev tsim cov phthalic anhydride, uas ua haujlwm nruab nrab hauv kev tsim cov yas thiab cov resins.
2. Puas yog o-xylene siv ncaj qha rau hauv cov khoom yas?
Tsis yog. Ortho-xylene tsis yog siv ncaj qha los ua cov khoom yas nws tus kheej. Nws yog thawj zaug hloov mus rau hauv phthalic anhydride, uas yog tom qab hloov mus rau hauv cov khoom siv yas yas qis.
3. Vim li cas 1,2-dimethylbenzene siv hauv PVC tsim?
Vim nws cov derivative: phthalic anhydride, yog siv los tsim plasticizers; cov plasticizers no txhim khu kev yooj yim thiab ua cov khoom ntawm PVC cov ntaub ntawv.
4. Cov yam ntxwv tseem ceeb ntawm ortho-xylene yog dab tsi?
Nws yog ib qho ortho- hloov cov ntxhiab hydrocarbon uas muaj ob pawg methyl uas nyob ib sab txuas rau nws lub nplhaib benzene; Cov txheej txheem no cuam tshuam cov yam ntxwv ntawm nws cov tshuaj tiv thaiv oxidation.
5. Cov kev lag luam twg siv derivatives ntawm o-xylene CAS 95-47-6?
Cov derivatives uas tsim los ntawm o-xylol feem ntau yog siv rau hauv kev tsim khoom ntawm cov yas (tshwj xeeb PVC plasticizers), coatings, unsaturated polyester resins, thiab alkyd resins.
6. Puas yog o-xylene chemical soluble hauv dej?
Tsis yog. Ortho-xylene yog insoluble hauv dej, tab sis nws yog soluble nyob rau hauv feem ntau cov organic solvents.
7. Qhov txawv ntawm o-xylene thiab lwm yam xylene isomers yog dab tsi?
o-Xylene muaj ob pawg methyl uas nyob ib sab, uas tso cai rau nws tsim phthalic anhydride ncaj qha los ntawm oxidation, thaum m-xylene thiab p-xylene tsim cov intermediates sib txawv.
8. Puas yog o-xylene tuaj yeem siv los ua cov kuab tshuaj hauv kev lag luam?
Yog lawm. o-xylene tuaj yeem siv los ua lub siab - cov tshuaj tsw qab uas muaj ntxhiab tsw qab hauv qee qhov kev ua thiab ntxuav cov ntawv thov, tab sis nws qhov kev siv tseem ceeb yog cov tshuaj nruab nrab.
9. Dab tsi yuav tsum tau xav txog kev nyab xeeb thaum tuav nws?
CAS 95-47-6 o-Xylene kua yog cov kua ua kua thiab yuav tsum tau muab khaws cia rau hauv cov thawv ntim, kom deb ntawm qhov chaw kub thiab qhov hluav taws kub, nrog rau qhov cua kom zoo thaum tuav.
Tau txais COA thiab SDS cov ntaub ntawv
txog peb
Gneebioyog ib lub chaw muag tshuaj nrog kev koom tes nrog ntau lub chaw tsim khoom. Lub tuam txhab tshwj xeeb hauv kev muab cov tshuaj tsw qab, cov kuab tshuaj, thiab tshuaj lom neeg nruab nrab, uas muaj kev siv dav hauv kev lag luam hauv qab.
Peb tsom rau kev muab cov khoom lag luam ruaj khov, cov khoom lag luam zoo ib yam, thiab cov ntaub ntawv ua tiav, suav nrog COA, SDS, thiab TDS, txhawm rau txhawb nqa kev lag luam thiab kev ua raws cai hauv kev lag luam thoob ntiaj teb.
Gneebio Khoom ntim khoom
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