PROCESS FOR PREPARING POLYETHER CARBONATE POLYOLS
The present invention relates to a process for the preparation of polyether carbonate polyols in the presence of a double metal cyanide catalysts that can be obtained by a process comprising (a) synthesizing a solid double metal cyanide catalyst in the presence of an organic complexing agent and a p...
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| Main Authors | , , |
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| Format | Patent |
| Language | English French German |
| Published |
13.11.2019
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| Subjects | |
| Online Access | Get full text |
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| Abstract | The present invention relates to a process for the preparation of polyether carbonate polyols in the presence of a double metal cyanide catalysts that can be obtained by a process comprising (a) synthesizing a solid double metal cyanide catalyst in the presence of an organic complexing agent and a polyether polyol ligand; and (b) first washing the catalyst obtained in step a) with an aqueous solution comprising 90-100% by weight of water and 0-10% by weight of a polyether polyol ligand, to form a slurry, wherein the aqueous solution does not contain any organic complexing agent other than the polyether polyol ligand. |
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| AbstractList | The present invention relates to a process for the preparation of polyether carbonate polyols in the presence of a double metal cyanide catalysts that can be obtained by a process comprising (a) synthesizing a solid double metal cyanide catalyst in the presence of an organic complexing agent and a polyether polyol ligand; and (b) first washing the catalyst obtained in step a) with an aqueous solution comprising 90-100% by weight of water and 0-10% by weight of a polyether polyol ligand, to form a slurry, wherein the aqueous solution does not contain any organic complexing agent other than the polyether polyol ligand. |
| Author | BLANCO GONZÁLEZ, María Dolores GARCÍA RUIZ, Mónica GONZÁLEZ RIVERO, Julián Pedro |
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| DocumentTitleAlternate | VERFAHREN ZUR HERSTELLUNG VON POLYETHERCARBONATPOLYOLEN PROCÉDÉ POUR LA PRÉPARATION D'UN POLYCARBONATE POLYOL |
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| RelatedCompanies | Repsol, S.A |
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| Snippet | The present invention relates to a process for the preparation of polyether carbonate polyols in the presence of a double metal cyanide catalysts that can be... |
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| SubjectTerms | CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP |
| Title | PROCESS FOR PREPARING POLYETHER CARBONATE POLYOLS |
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