Casara
Paolo Casara, San Donato Milanese (ml) IT
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20160082394 | METHOD FOR THE SEPARATION OF AMMONIA AND CARBON DIOXIDE FROM AQUEOUS SOLUTIONS - The present invention relates to a method for contemporaneously recovering ammonia and carbon dioxide from an aqueous solution thereof, possibly comprising their condensates, in a synthesis process of urea, characterized in that it comprises a hydrophobic microporous membrane distillation phase of an aqueous solution comprising ammonia, carbon dioxide and their saline compounds or condensates, said distillation being carried out at a temperature ranging from 50 to 250° C. and a pressure ranging from 50 KPa to 20 MPa absolute, with the formation of a residual aqueous solution, possibly comprising urea, and a gaseous permeate stream, comprising ammonia, carbon dioxide and water. The present invention also relates to an apparatus for effecting the above method and a production process of urea which comprises the above method. | 03-24-2016 |
Paolo Casara, San Donato Milanese (mi) IT
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20120189528 | PROCESS AND APPARATUS FOR RECOVERING AMMONIA FROM A GAS STREAM - The present invention relates to a process for the recovery of ammonia contained in a gaseous stream, said process comprising the following phases: (a) subjecting the gaseous stream containing ammonia to a washing with an aqueous washing solution having a pH lower than 7.0, with the formation of a purified gaseous stream and an aqueous solution containing an ammonium salt; (b) treating the aqueous solution containing the ammonium salt coming from phase (a) in a vertical falling film heat exchanger at a temperature from 50 to 250° C. and an absolute pressure ranging from 50 KPa to 4 MPa with the formation of a regenerated washing solution and a gaseous stream comprising NH | 07-26-2012 |
Paolo Casara, San Donato Milanese (milanoi) IT
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20120228225 | METHOD FOR THE SEPARATION OF AMMONIA AND CARBON DIOXIDE FROM AQUEOUS SOLUTIONS - The present invention relates to a method for contemporaneously recovering ammonia and carbon dioxide from an aqueous solution thereof, possibly comprising their condensates, in a synthesis process of urea, characterized in that it comprises a hydrophobic microporous membrane distillation phase of an aqueous solution comprising ammonia, carbon dioxide and their saline compounds or condensates, said distillation being carried out at a temperature ranging from 50 to 250° C. and a pressure ranging from 50 KPa to 20 MPa absolute, with the formation of a residual aqueous solution, possibly comprising urea, and a gaseous permeate stream, comprising ammonia, carbon dioxide and water. The present invention also relates to an apparatus for effecting the above method and a production process of urea which comprises the above method. | 09-13-2012 |
Paolo Casara, Schio(vicenza) IT
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20110091369 | METHOD FOR THE RECOVERY OF AMMONIA FROM A GASEOUS STREAM IN A SYNTHESIS PROCESS OF UREA - The present invention relates to a process for the recovery of ammonia contained in a gaseous purging stream produced in a synthesis process of urea, comprising the following phases: a) subjecting the gaseous purging stream to a washing with an aqueous acidic solution, at a pH ranging from 1 to 6, with the formation of a first purified gaseous stream and an aqueous solution containing an ammonium salt; b) subjecting the aqueous solution containing the ammonium salt coming from phase a) to stripping, after treatment with a strong base, at a temperature ranging from 50 to 250° C. and a pressure ranging from 1 to 40 absolute bar, with the formation of a second gaseous stream comprising NH | 04-21-2011 |
Paolo Casara, San Donato Milanese (milano) IT
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20120039787 | PROCESS FOR THE RECOVERY OF AMMONIA FROM A GASEOUS STREAM - A process for the recovery of ammonia contained in a gaseous stream is described, said process comprising the following phases: (a) subjecting the gaseous stream containing ammonia to a washing (S) with an aqueous washing solution ( | 02-16-2012 |
Patrick Casara, Villennes Sur Seine FR
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20090312389 | Azabicylic compounds, a process for their preparation and pharmaceutical compositions containing them - Compounds of formula (I): | 12-17-2009 |
20110112104 | TRICYCLIC COMPOUNDS, A PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM. - Compounds of formula (I): | 05-12-2011 |
20110136886 | Azabicyclo[3.2.0] hept-3-yl compounds, a process for their preparation and pharmaceutical compositions containing them - Compounds of formula (I): | 06-09-2011 |
Patrick Casara, Strasbourg FR
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20150051189 | INDOLIZINE COMPOUNDS, A PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM - Compounds of formula (I): | 02-19-2015 |
20150313911 | INDOLIZINE COMPOUNDS, A PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM - Compounds of formula (I): | 11-05-2015 |
Patrick Casara, Perpignan FR
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20120283245 | AZABICYCLO[3.1.0]HEX-2-YL COMPOUNDS, A PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM - Compounds of formula: | 11-08-2012 |