Products
Nyanzvi mukugadzira propargyl doro, 1,4 butynediol uye 3-chloropropyne.
1,4-butanediol (BDO) uye kugadzirira kwayo biodegradable plastiki PBAT
Nhanganyaya
1, 4-butanediol (BDO);PBAT inonzi thermoplastic biodegradable plastic, inova copolymer yebutanediol adipate uye butanediol terephthalate.Iine maitiro ePBA (polyadipate-1, 4-butanediol ester diol) uye PBT (polybutanediol terephthalate).Iyo ine yakanaka ductility uye elongation panguva yekuzorora, pamwe neakanaka kupisa kupisa uye kuita kwekuita.Pamusoro pezvo, ine yakanakisa biodegradability uye ndeimwe yeanonyanya kufarirwa biodegradable zvinhu mukutsvagisa kwe biodegradable mapurasitiki uye yakanyanya kushandiswa pamusika.
Izvi zvinotevera kuumbwa kwePBAT polymer cheni zvikamu:
Kugadzirwa kwemaindasitiri kwe1, 4-butanediol kwave kuwanikwa mumatanho mana makuru.
1. Aldehyde nzira (Reppe nzira) : yekutanga acetylene uye formaldehyde pamberi peCu-BI catalyst kuita 1, 4-butynediol.Iyo yekupedzisira inowedzera hydrogenated ku1, 4-butenediol kuburikidza neskeleton nickel, inoteverwa neNi-Cu-Mn / Al2O3 kusvika 1, 4-butanediol.
2. Maleic anhydride hydrogenation: inoparadzaniswazve kuva maleic anhydride esterification hydrogenation uye maleic anhydride yakananga hydrogenation.
3. Butadiene nzira: kubva ku1, 3-butadiene uye acetic acid uye oksijeni acetyl oxidation reaction, kubudisa 1, 4-diacetyloxy-2-butadiene, uye ipapo hydrogenation, hydrolysis.
4. propylene oxide nzira (allyl doro nzira) : propylene oxide seyakabikwa, catalytic isomerization mu allyl doro, mu organic phosphine ligand catalyst pasi pechiito che hydroformylation reaction kuti ibudise chigadzirwa chikuru γ-hydroxypropanal, uyezve kudhirowa, hydrogenation, kunatsa. kuti uwane BDO.
Reppe nzira inzira yechinyakare yekugadzira BDO, yakavakirwa paacetylene uye formaldehyde seyakabikwa, synthesis uye hydrogenation yematanho maviri kugadzira BDO: ① acetylene uye formaldehyde reaction kuburitsa 1, 4-butynediol uye propargyl doro sechigadzirwa. ;②1, 4-butanediol inonzi hydrogenated kuti iite 1, 4-butanediol.
Kugadzirira kweAcetylene kune [gasi rezvisikwa / nzira yemafuta] uye [ nzira yemarasha] : kushandiswa kwekoki uye limestone muchoto chekushisa kwepamusoro kuti ibudise calcium carbide, calcium carbide uye mhinduro yemvura kuti ibudise acetylene;Acetylene inogadzirwa kubva kugasi rechisikigo kana oiri nechidimbu oxidation yemethane.
