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Sulzer Chemtech Ag
Sulzer Chemtech Ag_20131212

Sulzer Chemtech Ag patents


Recent patent applications related to Sulzer Chemtech Ag. Sulzer Chemtech Ag is listed as an Agent/Assignee. Note: Sulzer Chemtech Ag may have other listings under different names/spellings. We're not affiliated with Sulzer Chemtech Ag, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "S" | Sulzer Chemtech Ag-related inventors


Aperture layout for vapor-liquid contact tray

A vapor-liquid contact tray apparatus includes a tray having a plurality of apertures for passage of fluid through the tray. The apertures are arranged in a first group of three adjacent rows extending substantially parallel to a main liquid flow path of the tray. Apertures of the middle row are... Sulzer Chemtech Ag

Fluid contact tray particularly for the use in an offshore fractionation column

A fluid contact tray (10) for a fractionation column (1), in particular a vapor-liquid contact tray suitable for the use in an offshore fractionation column, comprises: •a tray deck (12) comprising an active mass transfer surface (20) suitable for contacting two fluids (l, g) of different densities, wherein the active... Sulzer Chemtech Ag

Process and purification of acrylic acid

A process and an apparatus for the purification of a crude acrylic acid composition containing maleic anhydride as an impurity comprising the following steps: (a) carrying out at least one dynamic melt crystallization stage (14, 14a, 14b, 14c, 14d) with the crude acrylic acid composition to prepare a first purified... Sulzer Chemtech Ag

A continuous through-flow settling vessel, and a adaptive separation of a mixture from gas and/or oil exploration

A continuous through-flow settling vessel for adaptive separation of a mixture from gas and/or oil exploration or production, said mixture comprising a varying mixture of liquid and gaseous phases, wherein the vessel is provided with: an inlet for a mixture, and a gas outlet, a water outlet and an oil... Sulzer Chemtech Ag

Process to prepare a polyester polymer composition comprising a polyester polymer having furanic units and a polyester polymer composition obtainable thereby and the use thereof

A polyester polymer composition having a polyester polymer with furanic units as well as a process to prepare this polyester polymer composition are herein described. The process includes the step of reacting a cyclic polyester oligomer in the presence of a catalyst in a ring-opening polymerization reaction with a reaction... Sulzer Chemtech Ag

Extraction column and process for use thereof

A counter-current liquid-liquid extraction column (1) adapted for the flow of two or more liquids (2) therein is disclosed. The column comprises within one common vessel (3): a first inlet (41) for a first liquid feed stream (51), a second inlet (42) for a second liquid feed stream (52), a... Sulzer Chemtech Ag

A continuous manufacturing a polyester from cyclic ester monomer

A process of manufacturing a polyester from cyclic ester monomer comprises the steps of: a) providing a cyclic ester, b) polymerizing the cyclic ester in the presence of a catalyst and optionally an initiator in a reactor to form a reaction mixture comprising polyester and unreacted cyclic ester, wherein after... Sulzer Chemtech Ag

Method to minimize the transition time from one polymer grade to another polymer grade in a polymerization plant

The present invention relates to a method for reducing the transition time and/or the polymer waste being out of the specification during the change from a first polymer grade to a second polymer grade in a continuous polymerization process conducted in a polymerization plant, wherein the polymerization plant comprises at... Sulzer Chemtech Ag

A stabilizing a condensed phase composition including a cyclic ester in a process of manufacturing a polyester or of lactide

A method for stabilizing a condensed phase composition in a process of manufacturing a polyester from cyclic ester monomer comprising the steps of devolatilizing a reaction mixture, which contains i) at least one polymerizable cyclic ester, ii) at least one catalyst and optionally at least one initiator, to produce a... Sulzer Chemtech Ag

System for the purification of an organic solvent and a process for the use thereof

A system 1 for the purification of an organic solvent, preferably an alcohol, comprising a first distillation column 10, a second distillation column 20, a vapor permeation unit 30 suitable for the dehydration of an organic solvent, wherein the system 1 further comprises a first heat integration sub-system 100 for... Sulzer Chemtech Ag

Method for purification of benzoic acid

The present invention relates to a method for purifying a crude benzoic acid (32) containing 5 to 20% by weight of byproducts and 80 to 95% by weight of benzoic acid, by means of distillation, wherein the distillation is performed in a plant comprising a first distillation system (54), which... Sulzer Chemtech Ag

A modular sub-unit for a suspension crystallization system and a suspension crystallization process using said modular sub-unit

A modular sub-unit 1 for the production of crystals in a suspension crystallization system 10 is disclosed comprising: a first crystallization segment 100, at least one further crystallization segment 110, a first mixing segment 200, optional further mixing segments 210, an inlet cap 300, an outlet cap 400, wherein the... Sulzer Chemtech Ag

Packing element for a structured packing with specific mounting clips

The present invention relates to a packing element for a structured packing including at least two adjacent corrugated sheets, wherein each of the corrugated sheets comprises a plurality of alternately oriented peaks and troughs, wherein adjacent corrugated sheets are oriented such that the corrugations of the adjacent corrugated sheets intersect... Sulzer Chemtech Ag








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