I-Oxidation Catalyst kunye ne-Liquid phase oxidation catalyst
I-Oxidation Catalyst kunye ne-Liquid phase oxidation catalyst
Xa i-ethylene kunye nepropylene efunyenwe kwi-petroleum hydrocarbon cracking isetyenziswe njengezinto ze-polymerization, i-hydrogenation ekhethiweyo iyadingeka ukususa ukungcola okufana ne-alkyne, i-diene, i-carbon monoxide, i-carbon dioxide kunye ne-oksijini, ngaphandle kokulahlekelwa kwe-olefin.I-catalyst esetyenziswayo ngokubanzi yi-palladium, iplatinam okanye i-nickel, i-cobalt, i-molybdenum, njl., kwi-alumina.I-hydrogenation catalyst ekhethiweyos ezineempawu ezahlukeneyo zingafumaneka ngokulawula ubungakanani bezinto ezisebenzayo, indlela yokuvelisa inkxaso kunye ne-catalyst.Okunye okufana nokucocwa kwepetroli yokucocwa, ukuncitshiswa kwe-nitrobenzene hydrogenation kwi-aniline, i-hydrogenation catalyst.
I-Catalyst ye-hydrogenation enzulu kwiikhompawundi ezihluthisiweyo.Okufana ne-benzene hydrogenation ukuya kwi-cyclohexane ene-nickel alumina catalyst, i-phenol hydrogenation ukuya kwi-cyclohexanol, ine-dinitrile hydrogenation kwi-hexdiamine ene-nickel catalyst.
Ukusebenzisa i-silicon carbide okanye i-α -alumina njengenkxaso (ngexabiso elincinci le-barium oxide njenge-cocatalyst).Emva kokuphuculwa okuqhubekayo kweemeko ze-catalyst kunye nenkqubo, isivuno sobunzima be-ethylene sidlule i-100%.
I-catalyst etshizwe kwi-silicon carbide okanye i-corundum ye-oxidation ye-o-xylene kwi-phthalic anhydride.I-catalyst elungiselelwe ngokutshiza icandelo elisebenzayo le-vanadium-molybdenum series oxides kwi-corundum ye-oxidation ye-benzene okanye i-butane kwi-maleic anhydride.Ukuphuculwa kolu hlobo lwe-catalyst kuphuhliso lwamacandelo amaninzi, i-catalysts yamacandelo asibhozo ibonakala.Ubume bomthwali bukwatshintshwa ukusuka kwi-spherical ukuya kwisetyhula, i-semicircle ukuququzelela ukuhanjiswa kobushushu.Umkhwa jikelele kukulandela umthwalo ophezulu, isivuno esiphezulu kunye nokucoceka okuphezulu kweemveliso.
Okufana ne-methanol oxidation kwi-formaldehyde ngesilivere - i-pumice (okanye i-alumina), i-iron oxide - i-molybdenum oxide kunye ne-electrolytic catalyst yesilivere.
Kwiminyaka ye-1960, i-catalyst equkethe i-bismuth-mo-phosphorus compound oxide catalyst yaphuhliswa.I-Acrylonitrile inokudityaniswa kwinqanaba elinye ngokongeza ipropylene, i-ammonia kunye nomoya kwi-catalyst.Ukuze kuphuculwe ukukhetha kunye nesivuno kunye nokunciphisa ukungcoliseka kwendalo, amazwe ahlukeneyo ahlala ephucula i-catalyst, kwaye ezinye ii-catalysts ezintsha ziqulethe iintlobo ze-15 zezinto.I-oxygen chlorination catalyst, i-60's iphuhlise i-copper chloride alumina catalyst, kwi-fluidized bed reactor ngokusebenzisa i-ethylene, i-hydrogen chloride kunye nomoya okanye i-oksijini inokufumana i-dichloroethane.IDichloroethane yenziwe ngepyrolyzed ukuvelisa ivinyl chloride monomer.Le ndlela inenzuzo ekuphuhlisweni kwePVC kwiindawo apho umbane ubiza kakhulu kwaye i-petrochemicals iphuhliswa, indlela yokuvelisa inkxaso kunye ne-catalyst.Okunye okufana nokucocwa kwepetroli yokucocwa, ukucuthwa kwe-nitrobenzene hydrogenation kwi-aniline, i-hydrogenation catalyst.
I-liquid phase oxidation catalyst
Kukho ubukhulu becala:
(1) I-Ethylene, i-propylene oxidation acetaldehyde, i-acetone (indlela ye-Wacker), kunye nenani elincinci le-palladiumchloride copper chloride isisombululo catalyst, ngokusebenzisa olefin, umoya okanye ioksijini, emva kwenyathelo elinye okanye amabini yokusabela ukufumana efunekayo.iikhompawundi ezineoksijini.Ukungalungi kukonakala okukhulu kwezixhobo zokusabela.
(2) I-oxidation ye-chain side enevumba elimnandikwi-aryl acid catalyst, njenge-p-xylene kwisisombululo se-acetic acid kunye ne-cobalt acetate kunye nenani elincinci le-ammonium bromideukufudumeza, imveliso ye-air oxidation ye-terephthalic acid, kodwa i-corrosion enzulu yezixhobo zokusabela.
Bhala umyalezo wakho apha kwaye uwuthumele kuthi
