TH33787B - Methods and evaporators for evaporation of oxidative-sensitive compounds. - Google Patents

Abstract

DC60 (18/05/52) Liquid, containing vaporizing oxidation-sensitive compounds, is evaporated in an evaporator where the liquid is brought in contact with a hot solid surface to form Evaporation by means of which direct contact must be avoided during the resulting vapor phase. and hot solid surfaces Don't matter and evaporator It consists of a heated solid surface, a preheating apparatus for heating solid surfaces, and a preheating apparatus for feeding liquids. which contains vaporizable compounds to the heated solid surface for which the liquid feeding pre-fabricated apparatus is designed. and established in the evaporator in such a way as to avoid direct contact between any phases. and the heated hard coat surface can be significant Liquids containing vapor-sensitive oxidation-sensitive compounds are evaporated in an evaporator. The liquid is brought in contact with the hot solid surface for evaporation by a process that must avoid contact with each other. exactly between the resulting vapor phase and the hot solid surface. and the evaporator consists of a heated solid surface. Finishing machines for heating solid surfaces and finishing machines for feeding liquids containing vaporized compounds to heated solid surfaces for which liquid feeding finishers are designed and installed. in the evaporator in such a way that exposure can be avoided. directly between the resulting vapor phase and the heated solid surface.

Claims (10)

1. Vaporization processes for oxidizing liquids using evaporators involve bringing the liquid into contact with a heated solid surface to induce vaporization. Direct contact between the resulting vapor phase and the heated solid surface should be avoided. 2. The process of evaporating liquids containing oxidizing compounds using an evaporator, where most of the heated solids are completely wetted by the liquid. 3. The process under claim 1 or 2, in which the vaporizable oxidizing compound is glycol, should be ethylene glycol and an aqueous liquid. 4. Any of the processes described in Representations 1-3, which bring the majority of the heated solid surface into contact with the liquid, by adjusting the liquid flow into the evaporator and by providing a steady liquid supply at the evaporator inlet, should ideally utilize a porous box dispenser. 5. A method for preparing a highly pure, vapor-dependent oxidizing compound, consisting of one of the evaporation steps described in the previous claim. 6. Evaporators with heated solid surfaces: The integrated heating element for the solid surface and the integrated liquid feeder are designed and arranged within the evaporator in a manner that avoids direct contact between the resulting vapor phase and the heated solid surface. 7. An evaporator consists of a heated solid surface, a unit for heating the solid surface, and a unit for feeding a liquid containing a vaporizing compound to the heated solid surface. The liquid feeding unit is designed and arranged within the evaporator in such a way that the majority of the heated solid surface is in contact with the liquid during operation. 8. An evaporator pursuant to claim clause 6 or 7, whose heated solid surface is made of corrosion-resistant steel. 9. An evaporator under any of the claims 6 through 8, which is a complete device for feeding liquids containing vaporizable compounds, consists of one or more perforated box dispensers connected in series. 10. The use of the evaporator described in Claims 6 through 9 as a lower column evaporator used for distillation (Claims 10, image).