High-purity theem ntawm 1,1,3-trichloroacetone npaj

Cov ntsiab lus: acetone catalyzed chloride thiab ua los ntawm cov kuab tshuaj crystallization ntawm 1,1,3-trichloroacetone nrog siab purity tsis tsawg dua 99.0%, nrog rau yield ntawm 45% o Cov lus tseem ceeb: 1,1,3-trichloroacetone; synthesis; siab purity

------------.Lus qhuab ntuas

1,1,3■trichloroacetone yog ib qho tseem ceeb nruab nrab ntawm kev tsim cov folic acid.Tam sim no, 1,1,3.acetone trichloropacetone, ntev ntau lawm voj voog (48 teev), tsis zoo xaiv, tsis tshua muaj yield, 1,1,3- trichloropacetone cov ntsiab lus tsuas yog li 17%, tom qab dej rho tawm, nws cov ntsiab lus tsuas yog 51.9%. teeb meem.Tus sau tau nyeem ntau cov ntaub ntawv hauv tsev thiab txawv teb chaws.Tom qab ntau qhov kev sim thiab kev tshawb fawb, peb ntxiv catalyst thiab tswj fou chlorine ceev, txo cov tshuaj tiv thaiv lub sij hawm rau 1,1,3-3 trichloropacetone nyob rau hauv 24 teev, thiab 1,1,3-3 trichloropacetone crystallization nrog purity ntau dua 99% thiab cov yield ntau tshaj 45%.

II.Kev sim ib feem

1. tshuaj tiv thaiv

000 0

1. II.

　　CHACCHA + Cl:—ClCH.₂CCH.₃+ Cl.₂CHCCH.₃+ C1CH.₂CCH.₂C1+

1. Kev sim cov kauj ruam

Nyob rau hauv ib lub khob plaub-caj dab nrog 500ml spherical condenser, ib qho nyiaj ntawm acetone thiab catalyst tau nplawm thiab pub rau cov tshuaj chlorine ntawm qhov kub thiab txias ntawm 10 ~ 30 W.Pib sij hawm, nres hla cov tshuaj chlorine ob peb teev tom qab cov tshuaj tiv thaiv, thiab txuas ntxiv mus. stirring rau 1 teev.Ib qho tshwj xeeb hnyav zoo li cov khoom raug ntxiv rau qhov sib tov, stirred rau 1 teev thaum txias rau 10 ° C crystallization, rho tawm 1,1,3-trichloroacetone.

1. 1,1,3.Kev txiav txim siab ntawm trichloroacetone purity

Varin 3700 gas chromatograph, QF・1 sau kem thiab FID detector tau siv los xaiv los txiav txim siab purity profit ntawm cov khoom thiab tshuaj chloride.

1. Cov txiaj ntsig ntawm kev sib tham
2. Kev cuam tshuam ntawm catalyst ntawm chloride selectivity pom qhov kev xaiv ntawm acetone chlorination

Kev cuam tshuam loj, Table 1 teev cov txiaj ntsig ntawm kev sim.Los ntawm Table 1, qhov tsawg kawg nkaus xaiv ntawm 1,1,3-trichloroacetone yog nce ntxiv (li 19.1%) yam tsis muaj catalyst, thiab

　　compound amine catalyst yog qhov zoo tshaj plaws, mus txog 57.5% o.Test mob: Innl acetone, 3nr) l chlorine, catalyst 0.6g, kub 1030 ° C,

Lub sij hawm 18 teev.In 12 teev va: 3.9 Cao h; 2

~ 7 teev, vq: 27 Cao h; 7 ~ 18 teev, VQ: 3.9 rau h.Table 1.Qhov cuam tshuam ntawm catalyst ntawm cov khoom xaiv

1. Cov nyhuv ntawm cov tshuaj chlorine tshaj tawm ntawm cov tshuaj tiv thaiv

Qhov kev sim pom tias cov tshuaj chlorine tsis zoo muaj cov khoom tsis zoo xaiv, ua kom cov khoom xaiv tau zoo thiab tawm los.