Patent application number | Description | Published |
20080207954 | Method for Producing Polyoxymethylene Dimethyl Ethers From Methanol and Formaldehyde - A process for preparing tri- and tetraoxymethylene glycol dimethyl ether (POMDME | 08-28-2008 |
20080207955 | Method for the Production of Polyoxymethylene Dialkyl Ethers from Trioxan and Dialkylethers - A process for preparing polyoxymethylene dialkyl ethers of the formula | 08-28-2008 |
20080221368 | Process for Preparing Polyoxymethylene Dimethyl Ethers from Methanol and Formaldehyde - A process for preparing tri- and tetraoxymethylene glycol dimethyl ether (POMDME | 09-11-2008 |
20080281109 | Integrated Method For the Production of Trioxane From Formaldehyde - The invention relates to an integrated process for preparing trioxane from formaldehyde in which, in a first step, a stream A | 11-13-2008 |
20100130756 | METHOD FOR PRODUCING TRIOXANE FROM TRIOXYMETHYLENE GLYCOL DIMETHYL ETHER - A process for preparing trioxane from trioxymethylene glycol dimethyl ether (POMDME | 05-27-2010 |
20100145079 | METHOD FOR PRODUCING CYCLIC FORMALDEHYDE DERIVATIVES FROM POLYOXY DIALKYL ETHERS - A process for preparing trioxane from trioxymethylene glycol dimethyl ether (POMDME | 06-10-2010 |
20100152466 | INTEGRATED METHOD FOR PRODUCING TRIOXANE FROM FORMALDEHYDE - The invention relates to an integrated process for preparing trioxane from formaldehyde in which a stream A | 06-17-2010 |
20100319540 | REMOVAL OF ACID GASES BY MEANS OF AN ABSORBENT COMPRISING A STRIPPING AID - A process for removing acid gases from a fluid stream in which a) the fluid stream is treated with an absorption liquid which comprises at least one amine, a stripping aid, and water, wherein the stripping aid is selected from water-miscible liquids, the boiling temperature of which at atmospheric pressure is lower than that of water, b) the treated fluid stream is treated with a liquid aqueous phase in order to convert entrained stripping aid at least in part to the aqueous phase, c) the loaded aqueous phase is heated in order to expel the stripping aid at least in part, and d) the regenerated aqueous phase is cooled and at least in part recycled to step b). The stripping aid promotes the regeneration of the absorbent by stripping. Emissions of the stripping aid via the treated fluid stream are avoided by the treated fluid stream being scrubbed with a liquid aqueous phase. | 12-23-2010 |
20140187823 | PROCESS FOR THE PRODUCTION OF PURE METHYLAL - The invention relates to a continuous process to make and isolate methylal by reacting formaldehyde and methanol with an acid catalyst under at least partial formation of methylal and water, to form a mixture M2 comprising formaldehyde, methanol, methylal, and water, separating the said mixture M2 in a distillation column B into three distinct product streams, one being a distillate taken from the column head BH which is rich in methylal, one taken from the column bottom stream BB being almost pure water, and one taken from the side of the column B below the reaction zone which stream is rich in methanol, characterised in that the ratio of the amount of substance of methanol to the amount of substance of formaldehyde in the mixture M1 is at least 3 mol/mol, and to an apparatus to be used with this process. | 07-03-2014 |