I-Oxidation Catalyst ne-Liquid phase oxidation catalyst
I-Oxidation Catalyst ne-Liquid phase oxidation catalyst
Lapho i-ethylene ne-propylene etholakala ku-petroleum hydrocarbon cracking isetshenziswa njengezinto ze-polymerization, i-hydrogenation ekhethiwe iyadingeka ukuze kukhishwe ukungcola okulandelwayo okufana ne-alkyne, i-diene, i-carbon monoxide, i-carbon dioxide ne-oxygen, ngaphandle kokulahlekelwa kwe-olefin.I-catalyst esetshenziswayo ngokuvamile i-palladium, iplatinum noma i-nickel, i-cobalt, i-molybdenum, njll., ku-alumina.I-hydrogenation catalyst ekhethiwes ezinezakhiwo ezahlukene zingatholwa ngokulawula inani lezinto ezisebenzayo, indlela yokukhiqiza yokusekela kanye ne-catalyst.Okunye okufana nokucwengwa kukaphethiloli, ukuncishiswa kwe-nitrobenzene hydrogenation ku-aniline, i-hydrogenation catalyst.
I-Catalyst ye-hydrogenation ejulile kuya kwezinhlanganisela ezigcwele.Okufana ne-benzene hydrogenation kuya ku-cyclohexane ene-nickel alumina catalyst, i-phenol hydrogenation kuya ku-cyclohexanol, ine-dinitrile hydrogenation ku-hexdiamine nge-nickel catalyst.
Ukusebenzisa i-silicon carbide noma i-α -alumina njengokusekela (enenani elincane le-barium oxide njenge-cocatalyst).Ngemuva kokuthuthukiswa okuqhubekayo kwezimo ze-catalyst kanye nenqubo, isivuno sesisindo se-ethylene sidlule i-100%.
I-catalyst efuthwe ku-silicon carbide noma i-corundum ye-oxidation ye-o-xylene ibe i-phthalic anhydride.I-catalyst elungiselelwe ngokufafaza ingxenye esebenzayo ye-vanadium-molybdenum series oxides ku-corundum ye-oxidation ye-benzene noma i-butane ibe i-anhydride ye-maleic.Ukuthuthukiswa kwalolu hlobo lwe-catalyst ukuthuthukiswa kwezingxenye eziningi, ama-catalysts ayisishiyagalombili avele.Umumo wesithwali nawo uyashintshwa ukusuka ku-spherical kuya ku-circular, i-semicircular ukuze kube lula ukudluliswa kokushisa.Umkhuba ojwayelekile ukuphishekela umthwalo ophezulu, isivuno esiphezulu kanye nokuhlanzeka okuphezulu kwemikhiqizo.
Okufana ne-methanol oxidation ibe yi-formaldehyde enesiliva – i-pumice (noma i-alumina), i-iron oxide – i-molybdenum oxide kanye ne-electrolytic silver catalyst.
Ngawo-1960, i-catalyst equkethe i-bismuth-mo-phosphorus compound oxide catalyst yasungulwa.I-Acrylonitrile ingahlanganiswa ngesinyathelo esisodwa ngokungeza i-propylene, i-ammonia nomoya ku-catalyst.Ukuze kuthuthukiswe ukukhetha kanye nesivuno futhi kuncishiswe ukungcoliswa kwemvelo, amazwe ahlukahlukene ahlala ethuthukisa i-catalyst, futhi amanye ama-catalyst amasha aqukethe izinhlobo ezingafika kwezi-15 zezinto.I-oxygen chlorination catalyst, i-copper chloride alumina catalyst, i-copper chloride alumina catalyst, i-oxygen chlorination catalyst, emshinini wokuphendula umbhede omanzi nge-ethylene, i-hydrogen chloride nomoya noma umoya-mpilo ingathola i-dichloroethane.I-Dichloroethane yenziwa i-pyrolyzed ukuze ikhiqize i-vinyl chloride monomer.Le ndlela inenzuzo ekuthuthukisweni kwe-PVC ezindaweni lapho ugesi ubiza khona futhi amakhemikhali e-petrochemicals athuthukiswa, indlela yokukhiqiza yokusekela kanye ne-catalyst.Okunye okufana nokucwengwa kukaphethiloli, ukuncishiswa kwe-nitrobenzene hydrogenation ku-aniline, i-hydrogenation catalyst.
I-liquid phase oxidation catalyst
Kukhona ikakhulukazi:
(1) I-Ethylene, i-propylene oxidation acetaldehyde, i-acetone (indlela ye-Wacker), enenani elincane le-palladiumi-chloride yethusi chloride solution catalyst, ngokusebenzisa i-olefin, umoya noma umoya-mpilo, ngemva kwesinyathelo esisodwa noma ezimbili zokusabela ukuze uthole okudingekayo.izinhlanganisela eziqukethe umoya-mpilo.Okubi ukugqwala okukhulu kwemishini yokusabela.
(2) I-oxidation eseceleni enephunga elimnandiye-aryl acid catalyst, njenge-p-xylene kusisombululo se-acetic acid ne-cobalt acetate kanye nenani elincane le-ammonium bromideukushisa, ukukhiqizwa kwe-air oxidation i-terephthalic acid, kodwa ukugqwala okukhulu kwemishini yokusabela.
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