Bayer Materialscience Ag

Lanxess International Sa

Rheinisch-westfaelische Technische Hochschule

Covestro Deutschland Ag

Rheinisch-westfalische Technische Hochschule Aachen

Andreas Jupke

Hanns-Ingolf Paul

Rolf Feller

John Lovegrove

Adam Gronowski

Jörg Kirchhoff

Rainer Bellinghausen

Roland Parg

Jorg Kirchhoff

Henning Kahnis

Eric Bischof

Annette Conrad

Marcel Gausmann

Tim Massmann

Armin Eggert

Andreas Küver

Johannes Eickmans

Martin Hecker

Andreas Bednarz

John George Lovegrove

Benedikt Weber

Markus Schmidt

John George Arnold Lovegrove

The invention relates to a method for transferring a target substance (), particularly a target molecule (), between two liquid phases (), of which at least one phase () comprises the target substance () to be transferred and at least one phase () is an aqueous phase, where at least the aqueous phase () is arranged in one of two electrode chambers () which are electroconductively connected, preferably by charge carrier exchange, and separated in terms of the volumes thereof, preferably where the phases () are arranged together in one of two electrode chambers () which are electroconductively connected and separated in terms of the volumes thereof, and a pH-value modification is generated by the H and/or OH ions created during the electrolysis in the aqueous phase (), said modification initiating a transfer process of the target substance () between the phases (). The invention also relates to the use of the method for enrichment and subsequent isolation of the target substance ().

Transferring a target substance between two liquid phases

An integrated process for the solution polymerization and subsequent halogenation of butyl rubber in a common medium is disclosed. The process comprises providing a solution polymerization reactor containing a C6 medium mixed with a monomer mixture comprising at least an isoolefin monomer and a multiolefin monomer in a mass ratio of monomer mixture to medium of from 61:39 to 80:20. Once polymerized, residual unreacted monomer mixture is separated from the rubber solution using a distillation process. The residual monomers may then be purified and recycled back into the reactor. The separated rubber solution is then halogenated. The process obviates the need for separating the rubber from the medium following polymerization, then re-dissolving it in another solvent for halogenation, thereby saving energy cost. The process optionally employs heat exchangers for the reactor feed streams to further reduce energy consumption.

Common solvent process for producing high molecular weight halobutyl rubber

A computer-implemented method for monitoring and analyzing energy consumption of a chemical plant in operation. Plant type specific theoretical energy consumption optimum value based on a corresponding modeled plant are determined, parameters contributing to increased energy consumption are identified and grouped. Energy consumption of a plant is periodically graphed starting from the theoretical energy consumption optimum value and getting up as an energy cascade to a current energy consumption, by adding the provided, partly retrieved single energy consumption rates of the respective parameters in groups such that the resulting energy cascade allows to monitor at least a part of the individual parameters and to automatically compare the current energy consumption of the at least one plant with an energy consumption of another plant and/or with a previous energy consumption of the at least one plant with respect to the individual parameters. Furthermore, an appropriate system is provided.

Method and system for monitoring and analyzing energy consumption in operated chemical plants

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Leverkusen, Germany

Andreas Jupke