Zogulitsa
Okhazikika pakupanga mowa wa propargyl, 1,4 butynediol ndi 3-chloropropyne
1, 4-butanediol katundu
Thupi ndi mankhwala katundu
Zamadzimadzi zopanda mtundu, zoyaka, zosungunuka m'madzi, methanol, ethanol, acetone, polyether ndi
ma polyester polyols, osungunuka pang'ono mu etha, osasunthika ndi aliphatic ndi ma hydrocarbon onunkhira.
Kuyera kwa zinthu zamafakitale nthawi zambiri kumakhala kokulirapo kuposa 99% kapena 99.5%, chinyezi ndi chochepera 0.1%, mtengo wa sulfure siwopitilira 0.1%, chroma (APHA) ndi yochepera 25.
Pali njira zopitilira 20 zopangira 1, 4-butanediol, koma 5 ~ 6 zokha ndizopanga mafakitale.Pakali pano, njira zazikulu zopanga mafakitale zimaphatikizapo njira yosinthidwa ya Reppe, njira ya maleic anhydride hydrogenation, njira ya maleic anhydride esterification hydrogenation, njira ya propylene oxide ndi butadiene.
Makhalidwe ndi Ntchito
1, 4-butanediol ndi zofunika mankhwala ndi zabwino zopangira mankhwala, chimagwiritsidwa ntchito kupanga PBT zomangamanga mapulasitiki ndi ulusi, kaphatikizidwe wa tetrahydrofuran (THF), polytetramethylene etha diol (PTMEG, analandira THF polymerization), polyether mkulu ntchito elastomer ndi spandex elastic fiber (PTMEG ndi diisocyanate synthesis), unsaturated polyester resin, polyester polyol, butanediol ether solvent, komanso makampani opanga mankhwala ndi zodzoladzola.1, 4-butanediol ingagwiritsidwenso ntchito kupanga N-methylpyrrolidone, adipic acid, acetal, maleic anhydride, 1, 3-butadiene ndi zina zotero.
Y-butanolactone, mankhwala otsika a 1, 4-butanediol, ndizopangira zopangira 2-pyrrolidone ndi N-methylpyrrolidone.Kuchokera pa izi, mndandanda wazinthu zowonjezera zamtengo wapatali monga vinyl pyrrolidone ndi polyvinyl pyrrolidone zimachokera, zomwe zimagwiritsidwa ntchito kwambiri pamagulu a mankhwala ophera tizilombo, mankhwala ndi zodzoladzola.
M'munda wa POLYURETHANE, kuwonjezera pa kaphatikizidwe wa polytetrahydrofuran polyol, makamaka ntchito synthesis poliyesitala diol ndi ntchito monga elastomer, microporous polyurethane nsapato unyolo extender, polybutanediol adipate ester polyurethane ali crystallization wabwino.
Kawopsedwe waLow kawopsedwe, pachimake kawopsedwe mtengo wa mkamwa LD50= 1500-1780mg/kg mu makoswe, transdermal mayamwidwe kawopsedwe kawopsedwe kalulu LD50>2000mg/kg.
