Njira yopanga 1,4-butynediol:
Njira ya acetylene formaldehyde synthesis imatengedwa.The acetylene munali 80% -90% ndi wothinikizidwa kupanikizika kwa 0.4-0.5mpa, preheated kuti 70-80 ℃ ndi kutumizidwa riyakitala.Zopangira zopanda pake zimapezedwa pochita ndi formaldehyde pa 110-112 ℃ ndi butyne ngati chothandizira.Zomwe zimapangidwira zimakhazikika ndikuyengedwa kuti mupeze chomaliza, ndipo chotulukapo ndi mowa wa propargyl.
paraformaldehyde imagwiritsidwa ntchito ngati zopangira, cyclohexanone imagwiritsidwa ntchito ngati zosungunulira, acetylene imalowetsedwa mu riyakitala pamaso pa chothandizira acetylene mkuwa, ndipo kutentha kumasungidwa pa 115-120 ℃.Pambuyo pa kutembenuzidwa kwa formaldehyde, acetylene imayimitsidwa, chothandizira chimasefedwa, ndipo yankho la yankho limakhazikika ndikusinthidwanso kuti lipeze crystalline 1,4-butynediol.
Mawonekedwe a 1,4-butynediol: kristalo yoyera kapena yopepuka yachikasu yoyera ya rhombic (yachikasu chowala pambuyo pa kuyamwa kwa chinyezi)
Chinese alias: 1,4-butynediol;BOZ;2-butyne-1,4-diol electroplating luminescent wothandizira;1,4-butynediol;1,4-dihydroxy-2-butyne;Dihydroxy dimethyl acetylene;Dihydroxymethyl acetylene;2-butyne-1,4-diol.
1,4-butynediol zochita cholinga:
1,4-butynediol ikhoza kugwiritsidwa ntchito kupanga butene glycol, butanediol γ- Mndandanda wa mankhwala monga butyrolactone angagwiritsidwenso ntchito kupanga mndandanda wa zinthu zofunika kwambiri zamoyo monga butene glycol, butylene glycol ndi n-butanol, ndi zina zotero. kupanga mapulasitiki opangira ndi ulusi wopangira;
1,4-butynediol palokha ndi zosungunulira zabwino.Amagwiritsidwa ntchito ngati chowunikira mumakampani opanga ma electroplating komanso ngati gawo lapakati pakupanga kwachilengedwe komanso chinthu chopangira zida zamagetsi.
Nthawi yotumiza: Jun-21-2022