Txoj kev tsim khoom ntawm 1,4-butynediol:
Cov txheej txheem acetylene formaldehyde synthesis yog saws.Cov acetylene uas muaj 80% -90% yog compressed rau lub siab ntawm 0.4-0.5mpa, preheated rau 70-80 ℃ thiab xa mus rau lub reactor.Cov khoom nyoos yog tau los ntawm reacting nrog formaldehyde ntawm 110-112 ℃ nrog butyne li catalyst.Cov tshuaj tiv thaiv cov khoom yog concentrated thiab refined kom tau cov khoom tiav, thiab cov byproduct yog propargyl cawv.
paraformaldehyde yog siv los ua raw khoom, cyclohexanone yog siv los ua hnyav, acetylene yog nkag mus rau hauv lub reactor nyob rau hauv lub xub ntiag ntawm catalyst acetylene tooj liab, thiab qhov kub thiab txias yog khaws cia ntawm 115-120 ℃.Tom qab formaldehyde hloov dua siab tshiab lawm, acetylene raug tso tseg, cov catalyst yog lim tawm, thiab cov tshuaj tiv thaiv cov tshuaj yog concentrated thiab recrystallized kom tau crystalline 1,4-butynediol.
Cov tsos ntawm 1,4-butynediol: dawb los yog lub teeb daj siv lead ua dawb rhombic siv lead ua (lub teeb daj tom qab nqus dej)
Suav alias: 1,4-butynediol;BOZ;2-butyne-1,4-diol electroplating luminescent tus neeg saib xyuas;1,4-butynediol;1,4-dihydroxy-2-butyne;Dihydroxy dimethyl acetylene;Dihydroxymethyl acetylene;2-butyne-1,4-diol.
1,4-butynediol lub hom phiaj:
1,4-butynediol tuaj yeem siv los tsim butene glycol, butanediol γ- Cov khoom siv tshuaj xws li butyrolactone tuaj yeem siv los tsim cov khoom lag luam tseem ceeb xws li butene glycol, butylene glycol thiab n-butanol, thiab ntxiv rau. tsim cov khoom siv hluavtaws thiab hluavtaws fibers;
1,4-butynediol nws tus kheej yog cov kuab tshuaj zoo.Nws yog siv los ua lub ci ci hauv kev lag luam electroplating thiab ua ib qho nruab nrab hauv cov organic synthesis thiab cov khoom siv rau kev ntsuas electroplating.
Post lub sij hawm: Jun-21-2022