Mamita ekuwanda kwemukatiinopa ruzivo rwunogara ruchikosha pakuchenesa acetophenone mukushandiswa kwemafuta anonhuhwirira. Kuyera kwenguva chaiyo kunogonesa kuona tsvina yebenzene neacetyl chloride iri pasi pe0.5%, zvichitsigira zvakananga mwero wekuchenesa acetophenone pakugadzira mafuta anonhuhwirira. Mhinduro yehuwandu hwemafuta inobvumira kugadziriswa otomatiki kwehuwandu hwemafuta anonhuhwirira muchikamu che2:1–3:1, zvichiita kuti 99.5% yehuwandu hweacetophenone ionekwe kuburikidza nenzira dzakarongwa dzekuchenesa mafuta anonhuhwirira.
Kugadzirisa huwandu hwe organic phase density pakati pe 1.045–1.050 g/cm³ panguva yekugadzira oxime kuburikidza ne dichloromethane extraction kunodzivirira kugadzirwa kwe oxime hydrolyzate, zvichiita kuti sodium hydroxide dosage ionekwe kuti iite reaction endpoint detection. Zvishandiso zvakaita seLonnmeter inline density metres uye concentration metres zvionekwe kuti hazvina kukwana uye zvinoita kuti extractant ikwanise kuyerera zvakanaka, zvichideredza kurasikirwa kwezvinhu zvakabikwa uye zvichideredza kugadziriswa patsva.
Kubatanidzwa zvakananga kwekuyera mukati memutsetse kunoita kuti chigadzirwa chishandurwe otomatiki kana huwandu hwacho huchidarika 1.027 g/cm³ uye kunobvisa kutorwa kwesampuli nemaoko, zvichitsigira kusanganiswa kunoramba kuripo uye kusanganiswa kweacetophenone yakachena kwazvo nehumbowo hwakanyorwa hwekuti zvinoenderana nezvinodiwa.
Kugadzirwa kweAcetophenone Fixative
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Mamita ekuwanda kwemukatiinopa hungwaru hwemaitiro akakosha ekuchenesa acetophenone mukushandiswa kwemafuta anonhuhwirira. Kuyerwa kwehuwandu hwenguva chaiyo kunogonesa kutevedzera zvakanyanya mwero wehutsanana hweacetophenone, zvichitsigira kuongororwa kuri kuitwa kwetsvina yebenzene neacetyl chloride iri pasi pe0.5%. Vashandi vanogadzirisa matekiniki ekugadzira ma distillation akakodzera uye vanogadzirisa otomatiki reflux ratios kuti vachengetedze 99.5% acetophenone. Munguva yekusanganisa uye kubatanidza mukugadzira zvinonhuwira, inline density metres inosimbisa organic phase density stabilization kusvika 1.045–1.050 g/cm³, zvichidzivirira kuumbwa kweoxime hydrolysate kuburikidza nekuona endpoint endpoint.
AcetophenoneOngororo yeMaitiro Ekugadzira
Ethylbenzene oxidation inogadzira acetophenone, inokonzereswa ne cobalt kana manganese acetates pa 120–200°C kuti iwane goho rinosvika 90%. Kupatsanurwa kwezvikamu zvakawanda kunobvisa phenylethane ne hydroperoxides, uye kunyatsogadzirwa kwezvikamu kunobvisa acetophenone. Inline density metres inoongorora kuchena kwe distillate, zvichiita kuti real-time reflux ratio igadziriswe kuti irambe iine ≥99.5% acetophenone, yakakosha pakushandiswa kweperfume fixative. Density feedback inobatsira kuona tsvina ye benzene ne acetyl chloride—kuchengetedza sub-0.5% thresholds kwakakosha pakuchenesa acetophenone. Automated inline control inovimbisa distillation reflux ratios pakati pe2:1 ne3:1, inovandudza kubviswa kwetsvina uye kuderedza zvikanganiso zvemaoko.
Munguva yekuoximation, kuburitswa kwe dichloromethane kunosimbisa huwandu hwe organic phase density pakati pe 1.045–1.050 g/cm³, zvichitariswa zvakananga uchishandisa Lonnmeter inline density instruments. Iyi density window inodzivirira kuumbwa kwe oxime hydrolysate uye inodzora kuwedzera kwe sodium hydroxide. Density drops inoratidza kuburitswa kusina kukwana, zvichikonzera kunyatsogadzirwa kwe extractant flow rate kuti pave ne high-purity acetophenone. Inline measurement inoita kuti kusanganiswa uye kuwedzere kunaka, zvichitsigira acetophenone purity standards uye kugadzirwa kwezvinonhuwira zvinobudirira.
Zvinonhuhwirira Zvinogadzirisa
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Matambudziko muInline Density Measurement
Kuyerwa kwehuwandu hwemukati hwekuchenesa acetophenone kunosangana nematambudziko makuru ehunyanzvi uye ekushanda:
Kuonekwa kwetsvina yebenzene neacetyl chloride iri pasi pe0.5% kunodiwa kuti isangane nemazinga ekuchenesa kweacetophenone pakushandiswa kweperfume. Kuchinja kwehuwandu hwemafuta ari pasi pe0.0005 g/cm³ kunofanirwa kutariswa kuti nzira dzekubvisa tsvina nekukurumidza dzigadziriswe nekukurumidza.
Nzira dzekugadzira zvinonhuhwirira nemazvo dzinoshandisa mhinduro yenguva chaiyo kuti dzirambe dziripo (2:1–3:1). Kudzora huwandu hwezvinhu zvinogadzirwa kunodzivirira kurasikirwa nezvinhu zvisina kutsanangurwa uye kurasikirwa nezvinhu zvakagadziriswa. Kuchinja-chinja kunoratidza kusiyana kwekuchena kweacetophenone kana kusasanganiswa kwakakwana uye kusanganiswa kwayo mukugadzirwa kwezvinonhuwira.
Maitiro ekuita oximation anoda kunyatso tsanangurwa kwe endpoint. Midziyo iri mukati inofanira kuona huwandu hwe density ye ≤0.001 g/cm³/h kuti idzore alkali addition yakachengeteka uye otomatiki, kudzivirira kuwanda kwe sodium hydroxide mu organic synthesis.
Kubviswa kwe dichloromethane isina kukwana kunoonekwa sekuderera kwehuwandu muchikamu cheorganic. Mamita eLonnmeter inline density anogonesa kugadziriswa kwehuwandu hwe extractant flow rate, zvichiita kuti huwandu hwechikamu hugadzikane pa1.045–1.050 g/cm³ panguva yekutarisa kugadzirwa kweacetophenone oxime.
Kudzivirira oxime hydrolysate zvinobudirira kunoenderana nekuona kwemhedzisiro yemhinduro panguva chaiyo mumaitiro emakemikari. Zviratidzo zvekuyera zvakananga kuti zvinomira riini kudya kwealkali zvisati zvagadzirwa.
Mabhenefiti ekubatanidza Inline Density Meters
Kudzora vharuvhu yechigadzirwa otomatiki kwakabatana nekuyera kwehuwandu hwemukati kunoita kuti kubuda kwemvura kuitike chete pamusoro pe1.027 g/cm³, zvichideredza zvakanyanya kuburitswa kwezvinhu zve sub-spec. Kutarisa nguva dzose kwehuwandu hwemvura kunogonesa kuona tsvina yebenzene neacetyl chloride nekukurumidza pasi pe0.5%, zvichikonzera kugadziriswa kwekushanda nekukurumidza. Mhinduro chaiyo inogadzirisa huwandu hwe reflux ye distillation pakati pe2:1 ne3:1, ichiwedzera goho re acetophenone pamusoro pe99.5% uku ichideredza marara ezvinhu zvisina kucheneswa. Kuongororwa kwemukati kunobvisa sampuli nemaoko, kucheka nguva yekumirira sampuli uye kukanganisa kwevanhu, uye kunoderedza avhareji yekuzorora kwekuongorora mhando neinopfuura 40%. Data remukati rinogara richigadzikana rinosimbisa kusanganisa uye kubatanidza, richichengetedza acetophenone purity yekushandiswa kwemafuta anonhuhwirira kwenguva refu. Kukosha kwese kwehuwandu uye kugadziriswa kunonyorwa, zvichipa magwaro anoongororwa kuti aenderane nemazinga e acetophenone purity. Zvishandiso zveLonnmeter zvinotsigira kubatanidzwa kwakasununguka mumitsara yemaitiro iripo, zvichipa kutonga kwakarurama panguva yekudistilla, kubvisa, uye oximation pasina kupindira kwakanyanya.
Gadzirisa Matambudziko Akaoma Mukugadzirwa Kwezvinhu
Kumbira mutengo weLonnmeter inline density meter kuti ugadzirise kushandiswa kweacetophenone kuchenesa uye kugadzira perfume. Shandisa zvishandiso zveLonnmeter kuti uwane mabhenefiti ekuyera inline density, kugadzirisa distillation reflux ratio, uye kuvimbika kwekubvisa dichloromethane process. Tsigira magwaro e acetophenone purity standards, kugadzirisa nekukurumidza process, uye kugadzirisa extractant flow rate nemasensor akasimba, akananga process.
Nguva yekutumira: Ndira-28-2026
