Patent application number | Description | Published |
20080200745 | Method For Producing Propene From 2-Butene And Isobutene-Rich Feeding Flows - Process for preparing
| 08-21-2008 |
20080254976 | ACTIVATED METATHESIS CATALYSTS - The present invention provides a process for preparing a supported catalyst (catalyst C) having a support (support S) selected from among oxides, phosphates, silicates, carbides, borides and nitrides of main group elements and elements of transition groups VI and II and mixtures of the abovementioned compounds and an active component (activator A) comprising one or more compounds containing one or more elements of transition groups V, VI and VII customary for the catalysis of metathesis reactions. | 10-16-2008 |
20090023882 | PROCESS FOR PREPARATION OF POLYISOBUTYLENE WHOSE CONTENT OF TERMINAL DOUBLE BONDS IS MORE THAN 50% FROM AN INDUSTRIAL C4 HYDROCARBON STREAM COMPRISING 1-BUTENE, 2-BUTENE AND ISOBUTENE - Preparation of polyisobutylene having a content of terminal double bonds of more than 50% by polymerizing isobutene using a polymerization catalyst customary therefor from a technical 1-butene-, 2-butene- and isobutene-containing C | 01-22-2009 |
20090032023 | CLOSED REVERSIBLE BREATHING APPARATUS HAVING A METAL ORGANIC FRAMEWORK - The present invention relates to methods for removing carbon dioxide and, if appropriate, water from breathing air in closed or partially closed systems using a porous metal-organic framework material, such systems having at least one breathing apparatus and also their use and methods for regenerating the porous metal-organic framework material. | 02-05-2009 |
20100048959 | METHOD FOR THE HYDROFORMYLATION OF OLEFINS - The present invention relates to a process for preparing hydroformylation products of olefins having at least four carbon atoms, in which a high proportion of both the linear C | 02-25-2010 |
20100197990 | PROCESS FOR THE SEPARATION OF UNBRANCHED HYDROCARBONS FROM THEIR BRANCHED ISOMERS - The present invention relates to a process for the separation of at least one unbranched C4-C2O hydrocarbon from a fluid mixture containing the unbranched hydrocarbon and at least one branched isomer of the unbranched hydrocarbon, which comprises the step of—contacting the fluid mixture with an adsorbent comprising a porous metal organic framework material, which material comprises at least one at least bidentate organic compound coordinately bound to at least one metal ion, to get the unbranched hydrocarbon adsorbed, wherein the at least one at least bidentate organic compound is a monocyclic, bicyclic or polycyclic ring system which is derived from at least one heterocycle selected from the group consisting of pyrrole, alpha-pyridone and gamma-pyridone and has at least two ring nitrogens and is unsubstituted or bears one or more substituents selected independently from the group consisting of halogen, Ci-6-alkyl, phenyl, NH2, NH(d-6-alkyl), N(C1-6-alkyl)2, OH, Ophenyl and OCi-6-alkyl, where the substituents Ci_6-alkyl and phenyl are unsubstituted or bear one or more substituents selected independently from the group consisting of halogen, NH2, NH(d-6-alkyl), N(C1-6-alkyl)2, OH, Ophenyl and OCi-6-alkyl. The present invention also relates to the use of said porous metal-organic framework material in a process for the separation of unbranched hydrocarbons from their branched isomers. | 08-05-2010 |
20100257873 | METHOD FOR CONTROLLING THE WITHDRAWAL OF GAS - The invention relates to a method for controlling the withdrawal of gas from a sorption reservoir. The temperature in the sorption reservoir having a decreasing amount of gas therein is increased until a maximum acceptable temperature is reached such that a predetermined minimum pressure in the sorption reservoir does not fall below that threshold. The invention also relates to a device for storing at least one gas, having a sorption reservoir that has at least one attachment via which the sorption reservoir can be filled with gas or via which gas can be withdrawn from the sorption reservoir. The invention also relates to a device having at least one heating element which can warm the sorption reservoir, also a control system that can increase the temperature in the sorption reservoir when withdrawing the gas in such a manner that a predetermined minimum temperature in the sorption reservoir is not fallen below in order to attain a maximum acceptable pressure. | 10-14-2010 |
20110160504 | PROCESS FOR PREPARING A C4-OLEFIN MIXTURE BY SELECTIVE HYDROGENATION AND METATHESIS PROCESS FOR USING THIS STREAM - A C4-olefin mixture having a 1,3-butadiene content of from 100 to 500 ppm and a content of 1,2-dienes of less than 10 ppm is described. The present invention further provides a process for preparing this C4-olefin mixture and provides for its use in a metathesis reaction for preparing 2-pentene and/or 3-hexene. | 06-30-2011 |