Abstract: A process for a continuous production of a polyetherol first involves reacting a catalyst (5) with an alcohol starter (3) or an alkoxylated precursor, to give a mixture comprising an alcoholate and water. Water is then removed from the mixture. The process further involves feeding the alcoholate into a bubble column and feeding an alkylene oxide into the bottom of a compartment of the bubble column, such that the alkylene oxide rises in the alcoholate. The alkylene oxide then reacts with the alcoholate or a secondary product from the reaction between the alcoholate and alkylene oxide, to give the polyetherol.

Abstract: A process for preparing alkylamines by reacting olefins with ammonia under hydroaminating conditions over a calcined zeolitic catalyst in an adiabatically operated reactor unit, wherein the reaction mixture comprising the starting olefin, ammonia and the corresponding alkylamine is taken off at one or more points and brought into indirect thermal contact with the reaction mixture at one or more points in the reactor unit having in each case a lower concentration of alkylamine compared to the point from which the reaction mixture was taken off, is proposed.

Abstract: A process for preparing acid formates which comprises (a) partially hydrolyzing methyl formates with water; (b) separating off by distillation methyl formate and methanol from the reaction mixture obtained in process stage (a), forming a stream comprising formic acid and water; and (c) combining the stream comprising formic acid and water from the process stage (b) and the corresponding formate, forming a mixture comprising the acid formate and water, an apparatus for their preparation and their use.

Abstract: The invention relates to a method for producing formic acid formates, whereby (a) formic acid methyl ester is partially hydrolysed with water; (b) formic acid methyl ester and methanol are separated by distillation from the reaction mixture obtained in step (a), forming a current containing formic acid and water; (c) the current obtained in step (b), containing the formic acid methyl ester and optionally methanol, is converted into a current containing formate and water, by (i) reaction with a basic compound having a pKa value of the corresponding acid of the corresponding dissociation step of=3, measured at 25° C. in an aqueous solution, in the presence of water, and (ii) separation by distillation of the methanol; and (d) the current obtained in step (b), containing formic acid and water, and the current obtained in step (c), containing formate and water, are combined to form a mixture containing the formic acid formate and water.

Abstract: The present invention describes a process for the preparation of ethyldimethylamine and triethylamine with the following steps: (i) reaction of a mixture of diethylamine and dimethylamine with ethylene in the presence of a catalyst from the group of alkali metal dimethylamides, alkali metal diethylamides and alkali metal hydrides (ii) removal of the catalyst (iii) distillation separation of the resulting mixture in triethylamine and ethyldimethylamine and optionally diethylamine and dimethylamine (iv) optional return of the catalyst and of the starting amines to the reaction. The process according to the invention permits the coproduction of ethyldimethylamine and diethylamine in a simple process.

Abstract: A process for preparing ethylamines, butylamines and mixed ethyl/butylamines comprising the following steps: (i) Hydroamination of butadiene and ethylene by means of a monoalkylamine and/or a dialkylamine in which alkyl=ethyl and/or butyl in the presence of an alkali metal amide as catalyst, (ii) isomerization of the amines obtained in the hydroamination (i), if appropriate under the following conditions: (iia) prior fractionation into particular fractions and/or (iib) isomerization under hydrogenating conditions and/or (iic) isomerization in the presence of ammonia, (iii) fractionation of the resulting product mixture with isolation of the desired product amines and recycle of the amines suitable as starting material to step (i).

Abstract: A process for preparing dialkylamides of the alkali metals by reacting the corresponding dialkylamine with the corresponding alkali metal in the presence of an electron-donating substance selected from the group consisting of 1,3-butadiene, isoprene, naphthalene and styrene with formation of small amounts of butenyldialkylamine comprises suspending the corresponding alkali metal in a solvent and subsequently adding dialkylamine and electron-donating substance in such a way that the dialkylamine is present in an amount of up to 45% by weight, preferably up to 25% by, weight, in particular up to 15% by weight, and the butadiene is present in an amount of up to 5% by weight, preferably up to 3% by weight, in particular up to 1.5% by weight.

Abstract: Process for the preparation of n-butylamines where n-butenylamines are firstly prepared by reacting 1,3-butadiene in the form of a 1,3-butadiene-containing mixture obtained during the cracking of petroleum fractions or during the dehydrogenation of LPG or LNG or from GTL technology with a primary amine and/or a secondary amine under hydroaminating conditions, and the resulting butenylamine(s) are then reacted in a second process stage under hydrogenating and transalkylating conditions.