摘要:
Disclosed is a method for producing C5 aldehydes and propene from a C4 stream containing 1-butene, 2-butene, and up to 1000 ppm of 1,3-butadiene (initial C4 stream). Said method comprises a) a hydroformylation stage in which the initial C4 stream is contacted with hydrogen and carbon monoxide in the presence of a standard hydroformylation catalyst and the obtained C5 aldehydes and the obtained 2-butene-rich C4 stream are then separated from each other, and b) a metathesis stage in which the 2-butene-rich C4 stream formed in the hydroformylation stage is contacted with ethene in the presence of a standard metathesis catalyst and the propene is separated from the obtained propene-containing hydrocarbon stream.
摘要:
Disclosed is a method for producing C5 aldehydes and propene from a C4 stream containing 1-butene, 2-butene, and up to 1000 ppm of 1,3-butadiene (initial C4 stream). Said method comprises a) a hydroformylation stage in which the initial C4 stream is contacted with hydrogen and carbon monoxide in the presence of a standard hydroformylation catalyst and the obtained C5 aldehydes and the obtained 2-butene-rich C4 stream are then separated from each other, and b) a metathesis stage in which the 2-butene-rich C4 stream formed in the hydroformylation stage is contacted with ethene in the presence of a standard metathesis catalyst and the propene is separated from the obtained propene-containing hydrocarbon stream.
摘要:
The invention relates to a method for the hydroformylation of ethylenically unsaturated compounds by reacting carbon monoxide and hydrogen in the presence of a catalytically active fluid containing a dissolved metal complex compound of a metal of the VIIIth subgroup of the periodic system of elements with at least one phosphoramide compound as a ligand, said fluid being brought into contact with a base.
摘要:
The invention relates to phosphacyclohexanes of general formulae I and II, wherein the following designations, among others, apply: R can represent hydrogen, C1-100-alkyl, C7-20-aralkyl, C7-20-alkaryl, and C6-12-aryl; R?1 to R10¿ can independently represent hydrogen, C¿1-20?-alkyl, C7-20-aralkyl, C7-20-alkaryl, and C6-12-aryl; W, W' can independently represent single bonds or bridges comprising 1 to 20 carbon atoms, which can form part of a cyclic or aromatic group and can be interrupted by heteroatoms. Said phosphacyclohexanes are used as ligands in transition metal complexes of transition metals belonging to groups VIII to X of the periodic table.
摘要:
The invention relates to a method for producing tricyclodecandialdehyde by hydroformulating dicyclopentadiene by means of a CO/H2-mixture in the presence of a non-ligand modified rhodium catalyst which can be dissolved in a homogenous manner in the hydroformulation medium at a high temperature and at high pressure. Hydroformulation is carried out at pressure of between 200 - 350 bar in at least two reaction zones. In a first reaction zone, the reaction temperature is adjusted from 80 to 120 °C and in a reaction zone, which follows on from the latter, the temperature is adjusted from 120 to 150 °C, with the proviso that the reaction temperature in the subsequent reaction area is at least 5 °C higher that in the previous reaction zone.
摘要翻译:本发明涉及一种通过在非配体改性的铑催化剂存在下借助CO / H 2 - 混合物将二环戊二烯加氢制备三环癸醛的方法,所述非配体改性的铑催化剂可以在高温下以均匀方式溶解在加氢制备介质中, 高压力。 在至少两个反应区中在200-350巴的压力下进行加氢制剂。 在第一反应区中,将反应温度从80℃调节至120℃,在后者的反应区中,将温度从120℃调节至150℃,条件是反应温度在 随后的反应区域比之前的反应区域高至少5℃。
摘要:
A method for the production of cyclohexanol from benzole by a) production of cyclohexene by hydrogenation of benzole in the presence of a catalyst and b) production of cyclohexanol by hydratation of cyclohexene in the presence of a catalyst, characterized in that steps a) and b) are carried out in a reaction device provided with a bottom area on the lower end thereof, a head area on the upper end thereof and a reaction zone between the bottom and top areas, said reaction zone containing the catalyst according to steps a) and b), and in that part of the benzole is evaporated by the reaction heat in the reaction zone, is condensed in the head area and is reintroduced into the reaction zone, and in that a reaction mixture containing cyclohexanol is removed from the bottom area.
摘要:
Disclosed is a method for producing aminodihalophosphines, diaminohalophosphines, triaminophosphines, phosphite diamides, aminophosphines, diaminophosphines, phosphite amide halogenides, and aminophosphine halogenides by separating an acid in the presence of an auxiliary base. Said auxiliary base b) forms a salt with an acid, which is liquid at temperatures at which the valuable product is not significantly decomposed during separation of the liquid salt, and c) the salt of the auxiliary base and the valuable product or the solution of the valuable product form two immiscible phases in a suitable solvent.
摘要:
Disclosed is a method for producing aminodihalophosphines, diaminohalophosphines, triaminophosphines, phosphite diamides, aminophosphines, diaminophosphines, phosphite amide halogenides, and aminophosphine halogenides by separating an acid in the presence of an auxiliary base. Said auxiliary base b) forms a salt with an acid, which is liquid at temperatures at which the valuable product is not significantly decomposed during separation of the liquid salt, and c) the salt of the auxiliary base and the valuable product or the solution of the valuable product form two immiscible phases in a suitable solvent.