Ibicuruzwa
Inzobere mu gukora inzoga za propargyl, 1,4 butynediol na 3-chloropropyne
1,4-butanediol (BDO) no gutegura ibinyabuzima byangiza PBAT
Intangiriro
1, 4-butanediol (BDO);PBAT ni plastiki ya termoplastique ya biodegradable plastike, ikaba ikora kopolymer ya butanediol adipate na butanediol terephthalate.Ifite ibiranga PBA (polyadipate-1, 4-butanediol ester diol) na PBT (polybutanediol terephthalate).Ifite ihindagurika ryiza no kurambura kuruhuka, kimwe no kurwanya ubushyuhe bwiza no gukora ingaruka.Byongeye kandi, ifite ibinyabuzima byiza cyane kandi ni kimwe mu bikoresho bizwi cyane mu binyabuzima mu bushakashatsi bwa plastiki y’ibinyabuzima ndetse no gukoresha neza isoko.
Ibikurikira nigice cya PBAT polymer urunigi:
Umusaruro winganda wa 1, 4-butanediol wagaragaye mubikorwa bine byingenzi.
1. Uburyo bwa Aldehyde (Uburyo bwa Reppe): acetylene yambere na formaldehyde imbere ya catalizike ya Cu-BI yo gukora 1, 4-butynediol.Iyanyuma irakomeza hydrogène kuri 1, 4-butenediol ikoresheje nikel skeleton, ikurikiwe na Ni-Cu-Mn / Al2O3 kugeza 1, 4-butanediol.
2. Hydrogenation ya Maleic Anhydride: irongera igabanyijemo abagabo anhydride esterification hydrogenation na manic anhydride ya hydrogenation.
3. Uburyo bwa Butadiene: kuva 1, 3-butadiene na acide acetike na okisijeni ya okisijeni ya okisijeni, kubyara 1, 4-diacetyloxy-2-butadiene, hanyuma hydrogenation, hydrolysis.
4 kubona BDO.
Uburyo bwa reppe nuburyo gakondo bwo kubyara BDO, bushingiye kuri acetylene na formaldehyde nkibikoresho fatizo, synthesis hamwe na hydrogenation yintambwe ebyiri zo kubyara BDO: reaction acetylene na formaldehyde reaction yo kubyara inzoga 1, 4-butynediol na propargyl nkibicuruzwa. ;②1, 4-butanediol ni hydrogenated kugirango ikore 1, 4-butanediol.
Gutegura Acetylene bifite [inzira ya gaze / amavuta ya peteroli] na [inzira yamakara]: gukoresha kokiya na hekeste mu itanura ryubushyuhe bwo hejuru kugirango habeho kariside ya calcium, karisiyumu ya calcium hamwe n’amazi kugira ngo habeho acetylene;Acetylene ikomoka kuri gaze karemano cyangwa amavuta na okiside igice cya metani.
