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Phthalic Anhydride (PA) CAS No.: 85-44-9
Txheej Txheem Cej Luam Khoom
Phthalic Anhydride (PA) yog ib yam khoom siv organic tseem ceeb, feem ntau yog tsim los ntawm kev oxidation ntawm ortho-xylene lossis naphthalene. Nws zoo li cov khoom dawb crystalline nrog me ntsis tsw ntxhiab khaus. PA yog siv dav hauv kev tsim cov plasticizers, unsaturated polyester resins, alkyd resins, dyes, thiab pigments, ua rau nws yog ib qho tseem ceeb hauv kev lag luam tshuaj lom neeg.
Cov Nta Tseem Ceeb
- Kev Ua Haujlwm Siab:PA muaj cov pab pawg anhydride, uas yooj yim cuam tshuam nrog cov cawv, amines, thiab lwm yam sib xyaw ua ke los tsim cov esters lossis amides.
- Kev yaj zoo:Yaj hauv dej kub, cawv, ethers, thiab lwm yam organic solvents.
- Kev Ruaj Ntseg:Ruaj khov nyob rau hauv cov xwm txheej qhuav tab sis hydrolyzes qeeb rau phthalic acid nyob rau hauv lub xub ntiag ntawm dej.
- Kev siv tau ntau yam:Siv rau hauv kev tsim ntau yam khoom siv tshuaj, ua rau nws muaj ntau yam zoo.
Cov ntawv thov
- Cov khoom yas:Siv los tsim cov phthalate esters (piv txwv li, DOP, DBP), uas siv dav hauv cov khoom PVC los txhim kho kev ywj pheej thiab kev ua haujlwm.
- Cov Resins Polyester Tsis Muaj Kev Ruaj Ntseg:Siv rau hauv kev tsim cov fiberglass, coatings, thiab adhesives, muab cov khoom siv kho tshuab zoo heev thiab tshuaj lom neeg tsis kam.
- Cov roj alkyd:Siv rau hauv cov xim pleev, cov tshuaj pleev xim, thiab cov kua roj vanish, muab kev nplaum zoo thiab ci ntsa iab.
- Cov Xim thiab Cov Xim:Ua haujlwm ua ib qho nruab nrab hauv kev tsim cov anthraquinone dyes thiab pigments.
- Lwm Cov Ntawv Thov:Siv rau hauv kev tsim cov tshuaj intermediates, tshuaj tua kab, thiab tshuaj tsw qab.
Ntim Khoom & Cia Khoom
- Ntim:Muaj nyob rau hauv 25 kg/hnab, 500 kg/hnab, lossis ton hnab. Cov kev xaiv ntim khoom raws li qhov xav tau muaj.
- Kev Khaws Cia:Khaws cia rau qhov chaw txias, qhuav, thiab muaj cua nkag tau zoo. Tsis txhob cia kom raug dej noo. Qhov kub thiab txias uas pom zoo kom khaws cia: 15-25 ℃.
Kev Nyab Xeeb & Kev Xav Txog Ib puag ncig
- Kev khaus:PA ua rau khaus tawv nqaij, qhov muag, thiab lub cev ua pa. Yuav tsum hnav cov khoom siv tiv thaiv zoo (piv txwv li, hnab looj tes, tsom iav, thiab lub tshuab ua pa) thaum tuav.
- Kev kub hnyiab:Yooj yim hlawv tab sis tsis yooj yim hlawv. Khaws cia kom deb ntawm cov nplaim taws qhib thiab qhov kub siab.
- Kev Cuam Tshuam Ib puag ncig:Pov tseg cov khoom pov tseg raws li cov cai ib puag ncig hauv zos kom tiv thaiv kev ua qias tuaj.
Tiv Tauj Peb
Yog xav paub ntxiv lossis xav tau cov qauv, thov hu rau peb pab neeg muag khoom. Peb cog lus tias yuav muab cov khoom zoo thiab kev pabcuam zoo heev!
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Kev Taw Qhia Txog Khoom Methanol
Txheej Txheem Cej Luam Khoom
Methanol (CH₃OH) yog ib yam kua tsis muaj xim, uas muaj ntxhiab tsw qab me ntsis. Ua ib hom cawv yooj yim tshaj plaws, nws siv dav hauv kev lag luam tshuaj lom neeg, lub zog, thiab kev lag luam tshuaj. Nws tuaj yeem tsim los ntawm cov roj fossil (piv txwv li, roj av, thee) lossis cov khoom siv rov ua dua tshiab (piv txwv li, biomass, hydrogen ntsuab + CO₂), ua rau nws yog ib qho tseem ceeb rau kev hloov pauv carbon tsawg.
Cov yam ntxwv ntawm cov khoom
- Kev Ua Haujlwm Zoo Tshaj Plaws: Kev kub hnyiab huv si nrog tus nqi calorific nruab nrab thiab cov pa phem tsawg.
- Yooj Yim Khaws Cia & Thauj Mus Los: Kua nyob rau hauv chav tsev kub, ntau scalable dua li hydrogen.
- Kev Siv Tau Ntau Yam: Siv ua roj thiab tshuaj lom neeg.
- Kev Ruaj Khov: "Methanol Ntsuab" tuaj yeem ua tiav qhov tsis muaj carbon.
Cov ntawv thov
1. Zog roj
- Roj Tsheb: Roj av Methanol (M15/M100) txo cov pa phem ntawm cov pa tawm.
- Roj Hiav Txwv: Hloov cov roj roj hnyav hauv kev xa khoom (piv txwv li, Maersk cov nkoj siv methanol).
- Cov Roj Hmab: Muab lub zog rau cov khoom siv / drones los ntawm cov roj hmab methanol ncaj qha (DMFC).
2. Cov Khoom Noj Khoom Haus Tshuaj
- Siv los tsim cov formaldehyde, acetic acid, olefins, thiab lwm yam, rau cov yas, xim, thiab cov xov hluavtaws.
3. Kev Siv Tshiab
- Tus Neeg Nqa Hydrogen: Khaws/tso tawm hydrogen los ntawm kev tawg methanol.
- Kev Siv Cov Pa roj Carbon Rov Qab: Tsim cov methanol los ntawm CO₂ hydrogenation.
Cov Lus Qhia Txog Kev Siv
Khoom Cov Lus Qhia Tshwj Xeeb Kev dawb huv ≥99.85% Qhov Ceev (20 ℃) 0.791–0.793 g/cm³ Kub Kub 64.7 ℃ Qhov Teeb Meem 11 ℃ (Ua tau yooj yim) Peb Qhov Zoo
- Kev Muab Khoom Siv Thaum Kawg: Kev daws teeb meem sib xyaw ua ke los ntawm cov khoom siv raw mus rau kev siv thaum kawg.
- Cov Khoom Siv Kho Kom Haum: Qib lag luam, qib roj, thiab qib hluav taws xob methanol.
Lus Cim: MSDS (Cov Ntaub Ntawv Kev Nyab Xeeb Khoom Siv) thiab COA (Daim Ntawv Pov Thawj Kev Tshawb Fawb) muaj thaum thov.
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Diethylene Glycol (DEG) Khoom Taw Qhia
Txheej Txheem Cej Luam Khoom
Diethylene Glycol (DEG, C₄H₁₀O₃) yog ib yam kua tsis muaj xim, tsis muaj ntxhiab, thiab nplaum nrog cov yam ntxwv hygroscopic thiab saj qab zib. Ua ib qho tshuaj lom neeg tseem ceeb, nws yog siv dav hauv cov polyester resins, antifreeze, plasticizers, solvents, thiab lwm yam kev siv, ua rau nws yog ib qho khoom siv tseem ceeb hauv kev lag luam petrochemical thiab cov tshuaj zoo.
Cov yam ntxwv ntawm cov khoom
- Kub Kub Siab: ~245°C, tsim nyog rau cov txheej txheem kub siab.
- Hygroscopic: Nqus cov dej noo los ntawm huab cua.
- Kev yaj zoo heev: Sib xyaw nrog dej, cawv, ketones, thiab lwm yam.
- Kev Lom Zem Tsawg: Tsis muaj tshuaj lom ntau dua li ethylene glycol (EG) tab sis yuav tsum tau siv kom zoo.
Cov ntawv thov
1. Polyesters & Resins
- Kev tsim cov unsaturated polyester resins (UPR) rau cov txheej thiab fiberglass.
- Cov tshuaj diluent rau epoxy resins.
2. Tshuaj Tiv Thaiv Kev Khov Thiab Cov Tshuaj Txias
- Cov tshuaj tiv thaiv kev khov uas tsis muaj tshuaj lom (sib xyaw nrog EG).
- Tus neeg sawv cev ua kom qhuav roj av.
3. Cov Tshuaj Yas thiab Cov Tshuaj Yaj
- Cov kuab tshuaj rau nitrocellulose, inks, thiab adhesives.
- Cov roj nplua nyeem ntawm cov ntaub.
4. Lwm yam kev siv
- Cov tshuaj humectant rau luam yeeb, cov khoom siv pleev kom zoo nkauj, kev ntxuav roj.
Cov Lus Qhia Txog Kev Siv
Khoom Cov Lus Qhia Tshwj Xeeb Kev dawb huv ≥99.0% Qhov Ceev (20 ° C) 1.116–1.118 g/cm³ Kub Kub 244–245°C Qhov Teeb Meem 143 ° C (Hluav Taws Kub Tau)
Ntim Khoom & Cia Khoom
- Ntim: 250kg galvanized nruas, IBC tank.
- Cia: Kaw, qhuav, cua nkag, deb ntawm cov oxidizers.
Cov Lus Qhia Txog Kev Nyab Xeeb
- Kev phom sij rau kev noj qab haus huv: Siv hnab looj tes / tsom iav kom tsis txhob sib cuag.
- Kev Ceeb Toom Txog Kev Lom Zem: Tsis txhob noj (qab zib tab sis lom).
Peb Qhov Zoo
- Kev Huv Siab: Kev QC nruj nrog cov khoom tsis huv tsawg.
- Kev Muab Khoom Siv Tau Yooj Yim: Ntim Khoom Ntau / kho kom haum.
Lus Cim: Muaj cov ntaub ntawv COA, MSDS, thiab REACH.