Celebrity Inventors
Comic actor Danny Kaye received patent D166,807 for the co-design of "Blowout Toy or the Like". It's similar to one of those toys that unravels when you blow into at a birthday party except Kaye's has three blowouts going in different directions, not just one.
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| Number | Title | Issue Date |
| 7279599 | Carbamate condensation method and unit for carrying out such a method Method for carbamate condensation of a carbon dioxide/ammonia gaseous phase in a liquid phase in a condensation unit of the so-called submerged type comprising a heat exchange tube bundle having a predetermined number of tubes intended for carbamate condensation, wh... | 10/09/2007 |
| 7220882 | Process for urea production and plant In a process for urea production of the type comprising the reaction between ammonia and carbon dioxide in a high-pressure reactor followed by an autothermal stripping of the resulting reaction mixture so as to obtain a gaseous flow comprising ammonia and carbon dio... | 05/22/2007 |
| 7094927 | Process for increasing the capacity of a urea plant Process for increasing the capacity of a urea plant comprising a compression section, a high-pressure synthesis section, a urea recovery section, in which a urea melt is formed, and optionally a granulation section, the capacity of the urea plant being increased by ... | 08/22/2006 |
| 7091379 | Process and plant for the production of urea A process for urea production comprises the steps of:—performing a reaction between ammonia and carbon dioxide in a reaction space to obtain a reaction mixture comprising urea, carbamate and free ammonia in aqueous solution,—subjecting said mixture to a strippin... | 08/15/2006 |
| 7052655 | Urea synthesis process and apparatus Urea is prepared by reacting ammonia and carbon dioxide in an apparatus comprising a vertical condensation and synthesis column and a stripper, to provide a urea synthesis solution comprising urea, unreacted ammonia, unreacted carbon dioxide and water. The urea synt... | 05/30/2006 |
| 6921838 | Process for the preparation of urea The invention relates to a process for the preparation of urea from ammonia and carbon dioxide with the application of a synthesis reactor, a condenser, a scrubber and a stripper, wherein an outlet of the stripper, through which a gas stream is discharged during ope... | 07/26/2005 |
| 6881862 | Process for the preparation of urea The invention relates to a process for the preparation of urea from ammonia and carbon dioxide, which preparation takes places wholy or partly with the application of a synthesis reactor, a condenser, a scrubber and a stripper, wherein an outlet of the stripper, thr... | 04/19/2005 |
| 6875892 | Method for the production of urea A method for the production of synthesis urea from liquid ammonia and gaseous carbon dioxide, comprising the step of feeding separate flows (6, 8) of liquid ammonia and gaseous carbon dioxide in continuous to a substantially vertical or horizontal column synt... | 04/05/2005 |
| 6855846 | Process for the preparation of urea Process for the preparation of urea from ammonia and carbon dioxide in which all or part of the liquid ammonia needed for the process is supplied to the high-pressure scrubber in such a way that it is in direct contact with the other streams supplied to this scrubbe... | 02/15/2005 |
| 6852886 | Process for the preparation of urea Process for the preparation of urea from ammonia and carbon dioxide in which a urea synthesis solution containing urea, ammonium carbamate and unconverted ammonia is formed in a synthesis zone, a part of the urea synthesis solution being transferred from the synthes... | 02/08/2005 |
| 6730811 | Process for the preparation of urea The invention relates to a process for the preparation of urea from ammonia and carbon dioxide in which the low-pressure carbamate stream formed in the further upgrading of the urea synthesis solution is stripped in a CO2-carbamate stripper in countercurr... | 05/04/2004 |
| 6702992 | Method for modernizing a urea production plant A method for the modernization of a plant for urea production of the type comprising a reactor (2) for urea synthesis, a stripping unit (3) with carbon dioxide and at least one vertical condensation unit (4) of the film type, foresees the provision of mea... | 03/09/2004 |
| 6680407 | Installation and process for the preparation of urea The invention relates to an installation for the preparation of urea from ammonia and carbon dioxide, the installation comprising two reactor sections in a vertically placed combined reactor and a high-pressure condenser section. The installation may comp... | 01/20/2004 |
| 6552224 | Process and plant for the production of urea A process for urea production in a synthesis loop based on CO2 stripping is distinguished by the fact that at least part of a flow recycle carbamate is sent to a treatment of carbamate decomposition and removal of free ammonia to obtain a vapou... | 04/22/2003 |
| 6518457 | Urea synthesis process A process for the synthesis of urea, which comprises subjecting a urea synthesis solution from a urea synthesis column to stripping with a raw material carbon dioxide under a pressure approximately equal to the urea synthesis pressure to separate a major ... | 02/11/2003 |
| 6476262 | Urea synthesis process and apparatus Urea is prepared by reacting ammonia and carbon dioxide in an apparatus comprising a vertical condensation and synthesis column and a stripper, to provide a urea synthesis solution comprising urea, unreacted ammonia, unreacted carbon dioxide and water. Th... | 11/05/2002 |
| 6448441 | Gasification process for ammonia/urea production The present invention involves a process for the co-production of ammonia and urea in which two parallel gasifiers are utilized so as to optimize the H2 /CO2 ratio in the combined syngas product, thereby maximizing the ammonia and ur... | 09/10/2002 |
| 6426434 | Process for the synthesis of urea A urea synthesis process with improved heat economy, wherein a urea synthesis solution obtained by removing most of the unreacted ammonium carbamate by stripping with carbon dioxide at a pressure approximately equal to a urea synthesis pressure is subject... | 07/30/2002 |
| 6392096 | Process for the preparation of urea The invention relates to a process for the preparation of urea from ammonia and carbon dioxide, the preparation being effected in whole or in part in a vertical combi-reactor. The gas stream leaving the stripper is fed to the condenser section of a vertic... | 05/21/2002 |
| 6344588 | Process for the preparation of urea In the present process for the preparation of urea, an off-gas stream released during the synthesis of melamine in a high-pressure melamine process which consists predominantly of ammonia and carbon dioxide, is introduced into at least one high-pressure s... | 02/05/2002 |
| 6342632 | Process and plant for the production of urea with high conversion yield and low energy consumption In a process for the production of urea, substantially pure ammonia and carbon dioxide are reacted in a reaction space (1) from which comes out a reaction mixture subjected to stripping (2) to obtain a partially purified mixture sent to a urea recovery se... | 01/29/2002 |
| 6284922 | Method for modernizing a urea production plant A method for the modernization of a plant for urea production of the type comprising a reactor (2) for urea synthesis, a stripping unit (3) with carbon dioxide and at least one vertical condensation unit (4) of the film type, foresees the provision of mea... | 09/04/2001 |
| 6150555 | Process for urea production An improved process for urea production as well as a method of retrofitting a pre-existing urea plant based on the Stamicarbon process are disclosed. According to the invention, a high yield reaction space fed by highly pure reagents (NH3 and CO2) and a s... | 11/21/2000 |
| 6118023 | Method for increasing the capacity of an existing urea process Method for increasing the capacity of an existing urea process, the existing urea process comprising a reactor (R), a pressure-reduction section (SC) and a urea-recovery section (U), characterized in that (i) a stripping column (S) is added, in which ammonium ... | 09/12/2000 |
| 6114579 | Process for the preparation of urea In the present process for the preparation of urea, an off-gas stream released during the synthesis of melamine in a high-pressure melamine process which consists predominantly of ammonia and carbon dioxide, is introduced into at least one high-pressure s... | 09/05/2000 |
| 6093850 | Process for the synthesis of urea and equipment therefor The present invention provides an improved process for synthesizing urea from ammonia and carbon dioxide while preventing corrosion of sites, that are to be in contact with a condensate, of the joints of a tube plate and cooling tubes in a condenser insta... | 07/25/2000 |
| 5936122 | Urea synthesis process and apparatus therefor A vertical condenser is installed on or above a urea synthesis column to condense the mixed gas from the stripper by bringing it into contact with an absorption medium under cooling. A first down pipe for making the top part of the condenser communicate w... | 08/10/1999 |
| 5849952 | Urea production process with high energy efficiency A urea production process with high energy efficiency, in which the urea solution obtained from the synthesis stage is subjected to a first stage of high pressure thermal decomposition of the ammonium carbamate which has not undergone conversion to urea t... | 12/15/1998 |
| 5847208 | Method for increasing the yield and the production potential of urea reactors Urea is formed by the synthesis of ammonia with carbon dioxide at high pressure and temperature in an internal space of reactors through which flow a liquid phase cocurrently with a gas phase. The reactors are divided into compartments to avoid excessive ... | 12/08/1998 |
| 5750780 | Process for the synthesis of urea comprising two separate reaction zones A process for the synthesis of urea starting from ammonia and carbon dioxide, comprising a reaction step carried out in at least two distinct operating zones basically at the same pressure, but having a different operating temperature, the difference bein... | 05/12/1998 |
| 5597454 | Process for producing urea A urea production process combining lower pressure urea concentration and carbamate recovery steps into a single non-vacuum operation. Following high pressure stripping wherein a bulk of unreacted carbamate is recovered from the reaction effluent, remaini... | 01/28/1997 |
| 5523482 | Process and plant for the production of urea in reaction spaces with different yields In a process of producing urea in which ammonia and carbon dioxide are reacted in a first reaction space (E-1, R-1) the unreacted carbamate present in the reaction mixture is subjected to a thermal decomposition treatment, so as to obtain ammonia and carb... | 06/04/1996 |
| 5403956 | Process for urea production A process is described for the industrial synthesis of urea, making the ammonia (NH3) and the carbon dioxide (CO2) react, in at least one reaction space, at high pressures and temperatures and recycling at least in part the unreacted products obtained in ... | 04/04/1995 |
| 5359140 | Urea production process of high energy efficiency A urea production process in which the urea solution produced in the reaction zone is treated in sequence with a first thermal decomposer at the same pressure as the reaction, to decompose part of the residual ammonium carbamate into its components, then ... | 10/25/1994 |
| 5176800 | Process for the modernization of existing urea plants and a modernized urea plant A process to modernize existing urea plants which use a stripping with carbon dioxide, and to increase urea yields and flexibility under overload conditions while at the same time reducing energy consumption, corrosion phenomena and possible risks of expl... | 01/05/1993 |
| 5096599 | Process for purifying the effluent from urea production plants A process for purifying the effluent originating from urea production plants, consisting of three successive treatment stages, namely stripping of the volatile components, thermal hydrolyis of the urea and biuret in a plurality of zones traversed with pis... | 03/17/1992 |
| 4864059 | Process for producing urea Disclosed herein is a method of utilizing inert gases, which are introduced as impurities in the feed raw materials for the synthesis of urea and also as an anti-corrosion agent into a urea process, as a stripping agent of unreacted materials in one or mo... | 09/05/1989 |
| 4801746 | Process for the preparation of urea Process for the preparation of urea in which a urea synthesis solution containing carbamate and free ammonia is formed in a high-pressure part in a synthesis zone at an NH3 /CO2 molar ratio of up to 4:1, a temperature of at least 175° C.... | 01/31/1989 |
| 4801745 | Improved process for the preparation of urea Process for the preparation of urea in which a urea synthesis solution containing carbamate and free ammonia is formed in a high-pressure part in a synthesis zone at an NH3 /CO2 molar ratio of up to 4:1, a temperature of at least 175° C.... | 01/31/1989 |
| 4801747 | Process for preparing urea An improved process for the preparation of urea from carbon dioxide and excess ammonia at an elevated temperature and pressure to form a urea synthesis solution containing uncoverted ammonium carbamate and free ammonia. A portion of the ammonium carbamate... | 01/31/1989 |
