PhenolWani muhimmin abu ne mai mahimmanci na ƙwayar cuta, wanda aka yi amfani da shi wajen samar da kayayyaki daban-daban, saboda haka, yana da matukar muhimmanci a mallaki fasaha na phenol. A cikin wannan labarin, zamu gabatar da fasaha na phenol dalla-dalla.

A shirye-shiryen phenol gaba daya ne ta hanyar amsawa ta hanyar reshe tare da provylene a gaban kundin castystests. Za'a iya raba tsari zuwa matakai uku: Mataki na farko shine amsawa na benzene da kuma propylene don ƙirƙirar cumene; Mataki na biyu shine hadawan haduwa da Cumene don ƙirƙirar Cumene HydroBexerode; Kuma Mataki na uku shine share cumene hydroene hydroenperoxide to samar da phenol da acetone.

A mataki na farko, ana mayar da Benzene da Propylene a gaban mai kara kuzari don ƙirƙirar cumene. Wannan amsawar da za'ayi a zazzabi kusan 80 zuwa 100 digiri Celsius da matsi kusan 10 zuwa 30 kilogiram / cm2. Mai kara kuzari wanda aka yi amfani dashi yawanci aluminum chloride ko acid sulfuriic acid. Samfurin amsawa shine cumene, wanda aka rabu da cakuda dauki ta distillation.

A mataki na biyu, cumene ya haddi da iska a gaban mai kara kuzari don ƙirƙirar cumen hydroene. Wannan amsawar da za'ayi a zazzabi kusan 70 zuwa 90 digiri Celsius da matsin lamba na kusan 1 zuwa 2 kg / cm2. Contalyst amfani shine yawanci sulfuric acid ko phosphoric acid. Samfurin amsawa shine cumene hydropheroxide, wanda aka rabu da cakuda da ya dace da distillation.

A mataki na uku, cumene cumene hyperoxerode an tsaftace shi a gaban mai kara kuzari don samar da phenol da acetone. Wannan amsawar da za'ayi a zazzabi kusan 100 zuwa 130 digiri Celsius da matsi game da 1 zuwa 2 kg / cm2. Contalyst amfani shine yawanci sulfuric acid ko phosphoric acid. Samfurin amsawa shine cakuda phenol da acetone, wanda aka rabu da cakuda dauki ta distillation.

A ƙarshe, rabuwa da tsarkakewa na phenol da acetone suna gudana ta hanyar distillation. Domin samun samfuran tsarkakakke, ana amfani da jerin ginshiƙai masu distill don rabuwa don rabuwa da tsarkakewa. Samfurin ƙarshe shine phenol, wanda za'a iya amfani dashi don samar da samfurori daban-daban.

A takaice, shirye-shiryen phenol daga benzene da propylene ta hanyar matakai uku na sama na iya samun phenity mai ƙarfi. Koyaya, wannan tsari yana buƙatar amfani da adadi mai yawa na castysts, wanda zai haifar da mummunar lalata abubuwa na kayan aiki da gurbata muhalli. Sabili da haka, wasu sabbin hanyoyin sabbin hanyoyin da aka haɓaka don maye gurbin wannan tsari. Misali, ana amfani da hanyar Shirin Phenol ta amfani da ilmin biocatalysts a hankali a masana'antar.