Vinnolit GmbH & Co. KG Patent applications |
Patent application number | Title | Published |
20150353452 | METHOD FOR HEAT RECOVERY IN VINYL CHLORIDE MONOMER STRUCTURES OR IN THE STRUCTURE COMPOSITE DICHLOROETHANE/VINYL CHLORIDE, AND DEVICE SUITABLE FOR SAME - Energy savings in an integrated DCE/VCM plant, optionally also containing a PVC plant, is accomplished by using at least part of the vapor from a DEC quenching column to supply heat to an HCl column. The DCE plant has a high boiler column operating at superatmospheric pressure, and heat is removed from an overhead stream and used to supply heat to other portions of the process. | 12-10-2015 |
20140336426 | PROCESS AND APPARATUS FOR HEAT RECOVERY IN VINYL CHLORIDE MONOMER PLANTS OR IN INTEGRATED VINYL CHLORIDE MONOMER OR POLYVINYL CHLORIDE PLANTS - Disclosed is a process and apparatus for heat recovery in vinyl chloride monomer manufacturing plants or in integrated vinyl chloride monomer/polyvinyl chloride manufacturing plants. A process for capture and use of excess heat recovered in the production of vinyl chloride includes distillatively purifying DCE in a high-boilers column, using a heat exchanger to capture thermal energy from a purified DCE vapor stream from the high-boilers column, generating low pressure steam from the captured thermal energy, returning condensed DCE vapors to the high-boilers column, and heating parts of the plant with the generated low pressure steam. | 11-13-2014 |
20140158518 | METHOD FOR CONCENTRATING AQUEOUS LYE AND APPARATUS SUITABLE THEREFOR - Method of concentrating aqueous alkali and apparatus suitable for this purpose. A very energy-saving method of concentrating aqueous alkali originating, for example, from a chloralkali electrolysis plant and an apparatus suitable for this purpose are described. The method/the apparatus utilizes heat of reaction from the formation of 1,2-dichloroethane and includes multistage concentration of the aqueous alkali, where at least part of the heat required for concentrating the aqueous alkali originates from the plant for preparing 1,2-dichloroethane and at least a further part of the heat required for concentrating the aqueous alkali originates from at least one of the higher stages of the plant for concentrating the aqueous alkali and is used for partial heating of the first stage. The apparatus can be used for retrofitting existing integrated plants made up of a DCE plant and chloralkali electrolysis or in the erection of new plants. | 06-12-2014 |
20140047732 | Method For Drying A Humid Polymer Powder And Device Suitable For Said Method - An apparatus ( | 02-20-2014 |
20120095176 | Process for the production of a polyvinyl-chloride (PVC) resin - The present invention relates to a process for the production of polyvinyl chloride (PVC) having a median grain size of from 10 to 80 μm by suspension polymerization of vinyl chloride, the process comprising the following process steps: | 04-19-2012 |
20110178345 | METHOD FOR UTILIZATION OF THE REACTION HEAT THAT OCCURS IN THE PRODUCTION PROCESS OF 1,2-DICHLOROETHANE FROM ETHYLENE IN A FLUIDIZED BED REACTOR - With a method for utilization of the reaction heat that occurs in the production of 1,2-dichloroethane from ethylene, by reaction with oxygen and hydrochloride (oxychlorination), in a fluidized bed reactor, with dissipation of this reaction heat through cooling pipe bundles situated within the reactor, positioned in the fluidized bed, utilization of the heat is supposed to be improved, while simultaneously reducing the size of the corresponding system elements. This is achieved in that part of the reaction heat is dissipated by heating boiler feed water, whereby the heated boiler feed water is used to heat heat sinks in the production process. | 07-21-2011 |