TH83485A - Methods for adiabatic crystallization of organic compounds And the machine for such method - Google Patents

Abstract

DC60 (23/06/49) This invention provides a method for adiabatic cooling of the Organic compounds And the machine for such method Where can reduce operating costs And the cost of the machine can be down The assembly method includes the adiabatic evaporation and cooling action of the coolant in the crystallizer 20 for a mixture of organic compounds. Goals with coolers; Taking out the crystalline slurry produced by processing 20 crystals; Increasing the vapor pressure from evaporation to a higher than the working pressure in the crystallizer 20 by the compressor 30, the conduction vapor in the absorbent 10; Cooling for Condenses a solution of a mixture of organic compounds and evaporation vapors under pressure. While allowing those substances to come into contact with each other in 10 absorbent condensers and the resulting liquid conduction The invention provides a method for the adiabatic cooling of the Organic compounds And the machine for such method Where can reduce operating costs And the cost of the machine can be down The assembly method includes the adiabatic evaporation and cooling action of the coolant in the crystallizer 20 for a mixture of organic compounds. Goals with coolers; Taking out the crystalline slurry produced by processing 20 crystals; Increasing the vapor pressure from evaporation to a higher than the working pressure in the crystallizer 20 by the compressor 30, the conduction vapor in the absorbent 10; Cooling for Condenses a solution of a mixture of organic compounds and evaporation vapors under pressure. While allowing them to come into contact with each other in a 10 absorbent condenser and the resulting liquid conduction This is condensed into the crystallizer 20.

Claims (7)

1. Methods for adiabatic crystallization of organic compounds include: adiabatic cooling action for compound crystallization operations. Target organic And the evaporation action of the coolant which is directly imported into the A crystallizer for a slurry of mixtures of target organic compounds with coolers; Removing the crystalline slurry produced by operation from the crystallizer; Increasing the vapor pressure from evaporation to a pressure higher than the working pressure in the crystallizer. By compressor, conduction of the vapor is cooled through the pressure up into the absorbent condenser, the elimination of heat of absorption and condensation, the dilution of the compound mixture. Organic and pressurized evaporative coolers While allowing those substances It comes in contact with the absorbent condenser and the condensation liquid is introduced into the crystallizer. 2. Method for adiabatic crystallization of organic compounds based on Clause 1, where the crystalline slurries taken from the crystallizer are brought through solid-liquid separation, and the extracted parent liquid is returned to the absorbent condenser. 3. Methods for adiabatic crystallization of organic compounds based on Clause 1 where the working pressure in the crystallizer is vacuum. Or equal to or below four atmospheres 4.Methods for adiabatic cooling of organic compounds based on Clause 1, where determines the refrigerant concentration in an absorbent condensate liquid. From the absorption condenser from 1 to 70% 5. Methods for adiabatic crystallization of organic compounds based on Claim 1, where a solution of a mixture of organic compounds is a paraxylene-containing xylene mixture. Where paraxylene crystals were obtained from the solution of this mixture 6. Methods for adiabatic crystallization of organic compounds based on Clause 1, where a mixture of organic compounds is a hexane mixture with cyclo-hexane, where cyclohexane crystals are obtained from the mixture solution. 7. Adiabatic Crystallization Apparatus of Organic Compounds: A crystallizer with adiabatic cooling, crystallization and action. Evaporator for a solution of a mixture of target organic compounds with a coolant; A path to take out the crystalline slurry produced by processing from the crystallizer; A compressor that increases the pressure of the evaporation vapor in the crystallizer to a pressure higher than the Working pressure in the crystallizer And bring the vapor into the absorbent condenser; Absorbed condenser that acts condensation While making the solution of the mixture Organic compounds are exposed to evaporation vapors that undergo increased pressure and the route to introduce the absorbent condensed liquid into the sealer.