Interrogation of Drs. Rohm, Schnegg, and Ziegler (I.G. Farbenindustrie, Dormagen): at Beltane Schools, Wimbledon, on 27th August, 1946 : celluloze acetate manufacture
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4-speed absorb acetic anhydride aceto-butyrate acetyl acetyliser acid recovery Additions alloy aluminium approx approximately aqueous asbestos benzene blades breaker bronze Bryanston Square butyric acid c.m. dia cellulose acetate charge circulated concentration condensate contains cracking coils delivery line diameter dilute acetic acid dilute acid dilute mixed acid dilute solution discharge dissolved distillation dope viscosity Dormagen ducts enquiries ethyl alcohol extra sulphuric acid extraction system Farbenindustrie Filtration German Technical Gu.Sn handling heat hour hydrolysis Information Jacket ketene layer leaves the machine low viscosity maximum methylene chloride mixed anhydride mixture mole motor Numbers oven pneumatic poises precipitator pressure product leaves propionic or butyric pump quantity reaction reduced Report ripening shaft shell solvent spider spinning stainless steel Steam stirrer temperature Tests tons per month total MeClg tube unit v/as v/ater vacuum valve velocity vessel volatile Washing