Kayayyaki
Kwarewa a cikin samar da barasa na propargyl, 1,4 butynediol da 3-chloropropyne.
Propargyl zai yi polymerize kuma ya fashe
Tsarin farko ya dogara ne akan barasa na propargyl a matsayin mai narkewa, KOH a matsayin tushe, yanayin zafi don samun manufa.Reaction ba tare da sauran ƙarfi dilution yanayi zai zama ƙasa da impurities, da dauki ne mafi tsabta.
Idan aka yi la'akari da yuwuwar yuwuwar yuwuwar polymerization da fashewar fashewar tasha alkynes, Amgen's Hazard Evaluation Lab (HEL) ya shiga don yin kima na aminci da kuma taimakawa wajen inganta aiwatarwa kafin yin ƙima har zuwa lita 2 na amsa.
Gwajin DSC ya nuna cewa abin da ya faru ya fara bazuwa a 100 ° C kuma ya saki makamashi na 3667 J / g, yayin da barasa na propargyl da KOH tare, ko da yake makamashi ya ragu zuwa 2433 J / g, amma yanayin zafin jiki ya ragu zuwa 85 ° C, kuma Yanayin zafin jiki yana kusa da 60 ° C, haɗarin aminci ya fi girma.
An yi amfani da Gyaran Yoshida don ƙididdige bayanan DSC, kuma sakamakon ya nuna cewa duka propargyl barasa da maganin potassium hydroxide suna da hankali da fashewa.
Kinetic regression ta amfani da AKTS ya ba da TD24 na 73.5 °C don barasa mai tsabta na propargy da 45.9 ° C don maganin 3 M KOH.Saboda haka, tsarin bai dace da haɓakawa ba.
Ƙara gwada maganin amsawa tare da ARC, ƙaramin zafi a 46 ° C, hawan zafin jiki na adiabatic na 6 ° C, ya kamata ya zama sakin zafi mai niyya.A 76 ° C, akwai zafi mai ƙarfi da sakin iskar gas, wanda kai tsaye ya sa tankin gwajin ya fashe.An kuma nuna cewa amsawar bai dace da haɓakawa ba.
HEL da ƙungiyar sunyi la'akari da canji na tushe, amma gwaje-gwajen DSC sun nuna cewa ko da kasancewar tushe ya saukar da zafin jiki na barasa na propargyl.
Gwaje-gwajen da aka yi amfani da su ta hanyar amfani da alkali sun nuna cewa aikin KOH yana da kyau.Sake duba abubuwan kaushi ya nuna cewa dioxane shine mafi kyawun dauki.Gwaje-gwajen ARC sun nuna cewa bayan yanayin da aka yi na abin da aka yi niyya, zafin jiki ya ci gaba da hauhawa zuwa 200 ° C kuma har yanzu ba a sami bazuwar ba.Ana iya haɓaka wannan yanayin lafiya.
