Patent application number | Description | Published |
20080269426 | Method for Producing a Polyalkenyl Amine - The present invention relates to a process for preparing a polyalkenylamine, in which the solvent used for the reaction is exchanged for a different solvent. | 10-30-2008 |
20080289948 | Process for Separating Propylene Glycol From Aqueous Compositions - The present invention relates to a process for separating at least one propylene glycol from a mixture (M) comprising water and said propylene glycol, said process comprising (I) evaporating the mixture in at least two evaporation and/or distillation stages at decreasing operating pressures of the evaporators and/or distillation columns obtaining mixture (M′) and mixture (M″); (II) separating the mixture (M′) obtained in (I) in at least one further distillation step, obtaining a mixture (M-I) comprising at least 70 wt.-% of water and a mixture (M-II) comprising less than 30 wt.-% of water. | 11-27-2008 |
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 |
20110272108 | PROCESS FOR PRODUCING PULP AND AT LEAST ONE ORGANIC LIQUID OR LIQUEFIABLE MATERIAL OF VALUE WITH OFFGAS RECYCLING - The present invention relates to an integrated process for producing pulp and at least one organic liquid or liquefiable material of value, wherein
| 11-10-2011 |
20110275868 | PROCESS FOR PREPARING AT LEAST ONE LOW MOLECULAR WEIGHT AROMATIC MATERIAL OF VALUE FROM A LIGNIN-COMPRISING STARTING MATERIAL - The present invention relates to a process for preparing low molecular weight aromatic materials of value from a lignin-comprising starting material produced from biomass. | 11-10-2011 |
20110275869 | PROCESS FOR PRODUCING SYNTHESIS GAS AND AT LEAST ONE ORGANIC LIQUID OR LIQUEFIABLE MATERIAL OF VALUE - The present invention relates to a process for producing synthesis gas and at least one organic liquid or liquefiable material of value, wherein
| 11-10-2011 |
20110306812 | PROCESS FOR THE COOLIGOMERIZATION OF OLEFINS - In a process for the cooligomerization of olefins, an olefin starting material comprising olefins having n carbon atoms and olefins having 2n carbon atoms is reacted over an olefin oligomerization catalyst to give a reaction product. The process is carried out under such conditions that the conversion of olefins having 2n carbon atoms is less than 10%. Both the cooligomer having 3n carbon atoms and the olefin having 2n carbon atoms which has been separated off from the reaction product have a high hydroformylatability. | 12-15-2011 |
20120302786 | PROCESS FOR PREPARING POLYISOCYANATES FROM BIOMASS - The present invention relates to a process for preparing polyisocyanates from natural raw material sources, in which a composition comprising low molecular weight aromatics which comprise at least one hydroxy group or at least one alkoxy group per molecule (oxyaromatics) is produced from a biomass material, these oxyaromatics are converted into the corresponding aromatic amines and, optionally after condensation with formaldehyde, reacted further with phosgene to give compounds comprising isocyanate groups. | 11-29-2012 |
20140014596 | PHASE SEPARATION PROCESS BY INVERSION OF THE DIRECTION OF DISPERSION - The present invention relates to a process for separating a phase (A) from a phase (B), phase (A) having a higher viscosity than phase (B), by inverting the direction of dispersion from phase (B) in phase (A) to phase (A) in phase (B) by recycling a stream comprising phase (B) in excess. | 01-16-2014 |
20140018590 | PERFORMANCE OF A HYDROCARBON CONVERSION OR PROCESSING OF A HYDROCARBON CONVERSION IN APPARATUSES WITH SURFACES MADE FROM NONMETALLIC MATERIALS - The present invention relates to a process for performing a hydrocarbon conversion or processing an output from a hydrocarbon conversion in the presence of an acidic ionic liquid. The hydrocarbon conversion, which is preferably an isomerization, is performed in apparatuses whose surfaces which come into contact with the acidic ionic liquid have been manufactured completely or at least partially from at least one nonmetallic material. The nonmetallic material in turn has been applied to at least one further material other than the nonmetallic material. | 01-16-2014 |
20140018591 | CHEMICAL CONVERSION PROCESS IN A DISPERSION - The present invention relates to a chemical conversion process, preferably an isomerization process, for at least one hydrocarbon in the presence of an ionic liquid. The chemical conversion is performed in a dispersion, with dispersion of the hydrocarbon (phase (B)) in the ionic liquid (phase (A)) in the dispersion, the volume ratio of phase (A) to phase (B) being in the range from 2.5 to 4:1 [vol/vol]. | 01-16-2014 |
20140018595 | PROCESS FOR REMOVING HYDROGEN HALIDES IN A RECTIFYING COLUMN WITH A PARTIAL CONDENSER - The present invention relates to a process for treating an output from a chemical reaction, wherein the chemical reaction is performed in the presence of an ionic liquid. The chemical reaction is preferably an isomerization. In a rectifying column with a partial condenser, the hydrogen halide is drawn off from a mixture which originates from the chemical reaction and comprises at least one organic compound, preferably at least one hydrocarbon, and at least one hydrogen halide. | 01-16-2014 |
20140018596 | REMOVAL OF IONIC LIQUIDS BY MEANS OF A KNITTED FABRIC - The present invention relates to a process for separating a phase (A) comprising at least one ionic liquid from a phase (B), phase (A) having a higher viscosity than phase (B), comprising the following steps:
| 01-16-2014 |
20140018597 | PROCESS FOR TREATING AN OUTPUT FROM A HYDROCARBON CONVERSION BY WASHING WITH AN AQUEOUS MEDIUM - The present invention relates to a process for treating an output from a hydrocarbon conversion, wherein the hydrocarbon conversion is performed in the presence of an acidic ionic liquid. The hydrocarbon conversion is preferably an isomerization. A mixture which originates from the hydrocarbon conversion and comprises at least one hydrocarbon and at least one hydrogen halide is washed with an aqueous medium having a pH between 5 and 9, which removes hydrogen halide from the mixture. | 01-16-2014 |
20140018598 | REMOVAL OF IONIC LIQUIDS BY MEANS OF COALESCING FILTERS MADE FROM ACRYLIC/PHENOLIC RESIN - The present invention relates to a process for separating a phase (A) comprising at least one ionic liquid from a phase (B), phase (A) having a higher viscosity than phase (B), comprising the following steps:
| 01-16-2014 |
20140024875 | PROCESS FOR TREATING AN OUTPUT FROM A HYDROCARBON CONVERSION WITH REMOVAL OF HYDROGEN HALIDES AND SUBSEQUENT WASH - The present invention relates to a process for treating an output from a hydrocarbon conversion, wherein the hydrocarbon conversion is performed in the presence of an acidic ionic liquid. The hydrocarbon conversion is preferably an isomerization. First of all, the hydrogen halide is drawn off in an apparatus from a mixture which originates from the hydrocarbon conversion and comprises at least one hydrocarbon and at least one hydrogen halide, and then the mixture depleted of hydrogen halide is subjected to a wash. | 01-23-2014 |
20140114099 | PROCESS FOR PREPARING CYCLOHEXANE WITH STARTING MATERIALS ORIGINATING FROM A STEAMCRACKING PROCESS - The present invention relates to a process for preparing cyclohexane by isomerizing a hydrocarbon mixture (HM | 04-24-2014 |
20140114100 | NOVEL PROCESS FOR PREPARING CYCLOHEXANE FROM METHYLCYCLOPENTANE AND BENZENE - The present invention relates to a process for preparing cyclohexane from methylcyclopentane (MCP) and benzene. In the context of the present invention, MCP and benzene are constituents of a hydrocarbon mixture (HM1) additionally comprising dimethylpentanes (DMP), possibly cyclohexane and at least one compound (low boiler) selected from acyclic C | 04-24-2014 |
20140114103 | PROCESS FOR PREPARING CYCLOHEXANE COMPRISING A PRIOR REMOVAL OF DIMETHYLPENTANES - The present invention relates to a process for preparing cyclohexane from benzene and/or methylcyclopentane (MCP) by hydrogenation or isomerization. Prior to the cyclohexane preparation, the dimethylpentanes (DMP) are removed in a distillation apparatus (D1) from a hydrocarbon mixture (HM1) comprising not only benzene and/or MCP but also DMP. If cyclohexane is already present in the hydrocarbon mixture (HM1), this cyclohexane is first removed together with DMP from benzene and/or MCP. This cyclohexane already present can be separated again from DMP in a downstream distillation step and recycled into the process for cyclohexane preparation. | 04-24-2014 |
20140128648 | HYDROCARBON CONVERSION PROCESS IN THE PRESENCE OF AN ACIDIC IONIC LIQUID WITH UPSTREAM HYDROGENATION - The present invention relates to a process for hydrocarbon conversion in the presence of an acidic ionic liquid. The hydrocarbon conversion is preferably an isomerization, especially an isomerization of methylcyclopentane (MOP) to cyclohexane. Prior to the hydrocarbon conversion, a hydrogenation is performed, preference being given to hydrogenating benzene to cyclohexane. The cyclohexane obtained in the hydrogenation and/or isomerization is preferably isolated from the process. In a preferred embodiment of the present invention, the hydrogenation is followed and the hydrocarbon conversion, especially the isomerization, is preceded by distillative removal of low boilers, especially C | 05-08-2014 |
20140257003 | CHEMICAL REACTION PROCESS WITH ADDITION OF METAL HALIDES - The present invention relates to a chemical reaction process, preferably an isomerization process, of at least one hydrocarbon in the presence of an ionic liquid. The chemical reaction is carried out in an apparatus (V1) with at least one metal halide, preferably aluminum halide, being introduced repeatedly or continuously into the apparatus (V1). The anion of the ionic liquid used comprises at least one metal component and at least one halogen component. Here, the anion of the ionic liquid and the metal halide introduced into the apparatus (V1) have the same halogen component and the same metal component. The ionic liquid used in the respective chemical reaction, in particular in an isomerization, can (inter alia) be regenerated by the process of the invention. | 09-11-2014 |
20140257007 | CHEMICAL REACTION PROCESS AT CONSTANT HYDROGEN HALIDE PARTIAL PRESSURE - The present invention relates to a chemical reaction process, preferably an isomerization process, of at least one hydrocarbon in the presence of an ionic liquid and a hydrogen halide (HX). The chemical reaction is carried out in an apparatus (V | 09-11-2014 |