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Ukusetyenziswa kwe-butanediol kwizinto zokuthambisa
I-Butanediol, ikakhulu i-acetylene kunye ne-formaldehyde njengezinto ezibonakalayo.Isetyenziswe njenge-chain extender yokuveliswa kwe-polybutylene terephthalate kunye ne-polyurethane, kwaye njengento ebalulekileyo ekrwada ye-tetrahydrofuran, i-γ-butyrolactone, iyeza kunye ne-organic synthesis.Ngenxa yokuba i-polybutylene terephthalate luhlobo lwepolyester enezakhiwo ezilungileyo, imfuno yeeplastiki zobunjineli ikhula ngokukhawuleza.
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Ikhemikhali yelabhoratri enetyhefu kakhulu - ipropargyl alcohol
I-Propargyl Utywala, i-molecular formula C3H4O, ubunzima be-molecular 56. Ulwelo olungenambala olungenambala, oluguquguqukayo kunye nevumba elibi, ityhefu, ukucaphuka okukhulu kwesikhumba kunye namehlo.Indawo ephakathi kwi-organic synthesis.Ikakhulu isetyenziselwa ukuhlanganiswa kwe-antibacterial kunye ne-anti-inflammatory drugs sulfadiazine;Emva kwe-hydrogenation inxalenye, i-propylene alcohol inokuvelisa i-resin, kwaye emva kwe-hydrogenation epheleleyo, i-n-propanol ingasetyenziselwa njengento eluhlaza ye-anti-tuberculosis drug ethambutol, kunye nezinye iikhemikhali kunye neemveliso zamachiza.Iyakwazi ukuthintela iasidi kwi-iron, ikopolo kunye nenikeli kunye nezinye isinyithi, ezisetyenziswa njenge-rust remover.Isetyenziswa ngokubanzi ekutsalweni kweoli.Isenokusetyenziswa njenge-solvent, i-stabilizer ye-chlorinated hydrocarbons, i-herbicide kunye ne-insecticide.Ingasetyenziselwa ukuveliswa kwe-acrylic acid, i-acrolein, i-2-aminopyrimidine, i-γ-picauline, i-vitamin A, i-stabilizer, i-corrosion inhibitor kunye nokunye.
Amanye amagama: i-propargyl alcohol, i-2-propargyl - i-1-alcohol, i-2-propargyl alcohol, i-propargyl alcohol acetylene methanol.
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I-Propargyl iya kupholisa kwaye iqhume
Inkqubo yokuqala isekelwe kwi-propargyl alcohol njenge-solvent, i-KOH njengesiseko, ukusabela kokufudumeza ukufumana injongo.Ukusabela ngaphandle kweemeko zokuhlanjululwa kwe-solvent kuya kuba bubumdaka obuncinci, ukusabela kucocekile.
Ukuqwalasela i-polymerization ye-catalytic enokubakho kunye nokuqhuma kwe-alkynes ye-terminal, i-Amgen's Hazard Evaluation Lab (HEL) ingenelele ukwenza uvavanyo lokhuseleko kwaye incedise ekuphuculeni inkqubo ngaphambi kokunyusa ukuya kwiilitha ezi-2 zokusabela.
Uvavanyo lwe-DSC lubonisa ukuba i-reaction iqala ukubola kwi-100 ° C kwaye ikhulule i-3667 J / g amandla, ngelixa i-propargyl alcohol kunye ne-KOH kunye, nangona amandla ehla ukuya kwi-2433 J / g, kodwa iqondo lokushisa lokubola liyehla kwi-85 ° C, kwaye ubushushu benkqubo busondele kakhulu kwi-60 °C, umngcipheko wokhuseleko mkhulu.
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I-1,4-butanediol (BDO) kunye nokulungiswa kwayo kwePBAT yeplastiki ye-biodegradable
I-1, i-4-butanediol (BDO);I-PBAT yiplastiki ye-thermoplastic biodegradable, eyi-copolymer ye-butanediol adipate kunye ne-butanediol terephthalate.Ineempawu ze-PBA (i-polyadipate-1, i-4-butanediol ester diol) kunye ne-PBT (i-polybutanediol terephthalate).Ine-ductility elungileyo kunye nobude ngexesha lekhefu, kunye nokumelana nobushushu obulungileyo kunye nokusebenza kwempembelelo.Ukongeza, inokonakala okugqwesileyo kwebhayoloji kwaye yenye yezona zinto zidumileyo ezinokubola kuphando lweeplastiki ezinokuguquguquka kunye neyona ndlela isebenzayo kwimarike.
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Ukuveliswa kwe-1, i-4-butanediol (BDO) ngendlela ye-maleic anhydride
Zimbini iinkqubo eziphambili zokuveliswa kwe-BDO nge-anhydride ye-maleic.Enye yinkqubo ye-hydrogenation ethe ngqo ye-maleic anhydride ephuhliswe yi-Mitsubishi Petrochemical kunye ne-Mitsubishi Chemical e-Japan kwi-1970s, ebonakaliswe ngokuveliswa kwangaxeshanye kwe-BDO, THF kunye ne-GBL kwinkqubo ye-hydrogenation ye-maleic anhydride.Iimveliso zeengoma ezahlukeneyo zinokufumaneka ngokulungelelanisa iimeko zenkqubo.Enye yinkqubo yegesi esterification hydrogenation ye maleic anhydride ephuhliswe yiNkampani ye-UCC kunye neDavey Process Technology Company e-United Kingdom, ephuhliswe kuxinzelelo oluphantsi lwe-carbonyl synthesis technology.Ngo-1988, ukuphononongwa kwakhona kwenkqubo yokuhamba kwagqitywa kwaye noyilo lwemizi-mveliso lwacetywa.Kwi-1989, I-TEKNOLOJIYA YATHUNYELWA kwi-DongSANG CHEMICAL INKAMPANI YASE-Korea NE-DONGGU CHEMICAL Inkampani yase-Japan UKWAKHA i-20,000-TON / unyaka we-1, i-4-BUtanEDIOL INDUSTRIAL production PLANT.
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I-1, iipropati ze-4-butanediol
1, 4-butanediol
Isibizo: 1, 4-dihydroxybutane.
Ushunqulelo: BDO,BD,BG.
Igama lesiNgesi: 1, 4-Butanediol;1, 4 - butylene glycol;1, 4 - dihydroxybutane.
I-molecular formula yi-C4H10O2 kunye ne-molecular weight 90.12.Inombolo ye-CAS yi-110-63-4, kunye nenombolo ye-EINECS yi-203-785-6.
Ifomula yolwakhiwo: HOCH2CH2CH2CH2OH.
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Inkqubo yokuveliswa kotywala bePropargyl kunye nohlalutyo lwemarike
I-propargyl alcohol (PA), ngokwekhemikhali eyaziwa ngokuba yi-2-propargyl alcohol-1-ol, lulwelo olungenambala, oluphakathi oluguquguqukayo olunevumba elimnandi legqabi.Uxinaniso yi-0.9485g/cm3, indawo yokunyibilika: -50℃, indawo ebilayo: 115℃, i-flash point: 36℃, enokutsha, eqhumayo: inyibilika emanzini, i-chloroform, i-dichloroethane, i-methanol, i-ethanol, i-ethyl ether, i-dioxane, i-dioxane, I-pyridine, i-soluble kancinane kwi-carbon tetrachloride, enganyibilikiyo kwi-aliphatic hydrocarbon.Utywala bepropargyl yinto ebalulekileyo yeekhemikhali ekrwada, esetyenziswa kakhulu kumayeza, ishishini lemichiza, i-electroplating, i-pesticide, intsimbi, i-petroleum kunye nezinye iindawo.
Isicelo
Ubungcali kwimveliso yotywala bepropargyl, 1,4 butynediol kunye ne-3-chloropropyne
