Schraven
Alexander Schraven, Issum DE
Patent application number | Description | Published |
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20110118504 | THERMAL SALT SPLITTING OF AMMONIUM CARBOXYLATES - The present invention relates to a process for preparing hydroxycarboxylic acids, preferably α- and β-hydroxycarboxylic acids, from ammonium carboxylates of the general formula | 05-19-2011 |
20110189742 | METHOD FOR THE PRODUCTION OF FREE CARBOXYLIC ACIDS - A process for the preparation of free carboxylic acids including: A) preparation of carboxylic acid by a biological cell located in an aqueous medium with addition of an amine of formula (I) | 08-04-2011 |
20110257429 | METHOD FOR PRODUCING A FREE ACID FROM THE SALT THEREOF - The invention relates to an improved method for releasing an organic acid, preferably a carbon, sulfone or phosphone acid, particularly an alpha or beta hydroxycarbon acid, from the ammonia salt thereof by releasing and removing ammoniac and simultaneous extraction of the released acid, having an amine as a suitable extraction means from the aqueous phase. This method corresponds to a reactive extraction. The reactive extraction of an organic acid from the aqueous ammonia salt solution thereof can be significantly improved by the use of a strip medium or carrier gas, such as nitrogen, air, water vapor or inert gases such as argon. The released ammoniac is removed from the aqueous solution by the continuous gas flow and can be resupplied into a production process. The free acid can be obtained by a method such as distillation, rectification, crystallization, reextraction, chromatography, adsorption or by a membrane method from the extraction means. | 10-20-2011 |
20140356268 | METHOD AND ABSORPTION MEDIUM FOR ABSORBING CO2 FROM A GAS MIXTURE - The absorption of CO | 12-04-2014 |
20140360369 | PROCESS FOR THE ASBORPTION OF CO2 FROM A GAS MIXTURE WITH AN ABSORPTION MEDIUM COMPRISING AMINES - An absorption medium comprising water and at least one amine of formula (I) | 12-11-2014 |
Eckhardt H.m. Schraven, Eindhoven NL
Patent application number | Description | Published |
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20100133982 | LAMP, LAMP HOLDER, AND ASSEMBLY OF SUCH A LAMP AND SUCH A LAMP HOLDER - The invention relates to an assembly of a lamp and a lamp holder. The invention also relates' to a lamp' for use in an assembly of a lamp and a lamp holder. The invention further relates to a lamp holder for use in an assembly of a lamp and a lamp holder. Assembly of a lamp ( | 06-03-2010 |
Patrick Schraven, Duisburg DE
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20150203944 | AUSTENITIC STEEL ALLOY HAVING EXCELLENT CREEP STRENGTH AND RESISTANCE TO OXIDATION AND CORROSION AT ELEVATED USE TEMERATURES - An austenitic steel alloy having excellent creep strength and resistance to oxidation and corrosion at elevated use temperatures up to approximately 750° C. has the following chemical composition (in weight %): 0.02≦C≦0.15%; 0.1≦Si≦2.0%; 25≦Cr≦33%; 22≦Ni≦38%; 1≦Mo≦6%; 0.4≦Nb≦1.5%; B≦0.0120%; 0.01≦N≦0.2%; Mn≦2%; Co≦5%; W≦2%; Al≦0.05%; Cu≦5%; Ti≦0.5%; Ta≦0.5%; V≦0.5%; P≦0.05%; S≦0.05%, Remainder iron with melting related impurities and optional addition of rare earths and reactive elements such as Ce, Hf, La, Re, Sc and/or Y of together 1%. | 07-23-2015 |