摘要:
The invention provides a process for the telomerization of acyclic olefins having at least two conjugated double bonds (I) or mixtures comprising such olefins by means of nucleophiles (II) using a palladium-carbene complex as catalyst.
摘要:
Catalytic multiphase reactions are conducted by a process, comprising: conducting the catalytic multiphase reactions in a tube reactor, wherein the catalyst is present in the continuous phase and at least one starting material is present in a dispersed phase and the loading factor B of the tube reactor is equal to or greater than 0.8.
摘要:
Bases and organic acids are simultaneously separated from aqueous solutions comprising bases and organic acids by electrochemically treating aqueous solutions containing these components, particularly the aqueous waste solution obtained from an aldolization reaction.
摘要:
The present invention relates to a copolymer which contains 3-methylbut-1-ene as a comonomer and which contains ethene or propene as a further monomer, the proportion of the incorporated 3-methylbut-1-ene being 0.1 to 40 mol %, and to a process for preparing such copolymers, the polymerization being performed in the presence of a catalyst which comprises at least one cyclopentadienyl group.
摘要:
The present invention relates to a process for preparing 1-olefins from 2-hydroxyalkanes by catalytic elimination of water under nonisomerizing conditions and to a catalyst which is particularly well-suited for this process and formally comprises yttrium oxide (Y2O3), zirconium dioxide (ZrO2) and an alkali metal oxide and/or alkaline earth metal oxide.
摘要翻译:本发明涉及一种通过在非异构化条件下催化除去水而由2-羟基烷烃制备1-烯烃的方法和特别适用于该方法的催化剂,并且正式地包含氧化钇(Y 2 O 2) (CH 2 O 3),二氧化锆(ZrO 2)和碱金属氧化物和/或碱土金属氧化物。
摘要:
The present invention relates to a process for preparing 1-olefins from 2-hydroxyalkanes by catalytic elimination of water under nonisomerizing conditions and to a catalyst which is particularly well-suited for this process and formally comprises yttrium oxide (Y2O3), zirconium dioxide (ZrO2) and an alkali metal oxide and/or alkaline earth metal oxide.
摘要翻译:本发明涉及一种通过在非异构化条件下催化除去水而由2-羟基烷烃制备1-烯烃的方法和特别适用于该方法的催化剂,并且正式地包含氧化钇(Y 2 O 2) (CH 2 O 3),二氧化锆(ZrO 2)和碱金属氧化物和/或碱土金属氧化物。
摘要:
The present invention relates to a process for preparing a C13-alcohol mixture which is suitable, in particular, as precursor for the preparation of compounds having surfactant properties and of plasticizers.
摘要:
The invention relates to a process for separating dibutenes into an n-octene-containing fraction and a dimethylhexene-containing fraction. The fractions can be processed further separately to the corresponding C9 carboxylic acids and C9 alcohols (isononanols). Successor products of the C9 carboxylic acids include, for example, vinyl esters. Successor products of the C9 alcohols include plasticizers.
摘要:
The invention relates to a process for the catalytic aldol condensation of aldehydes by means of a multiphase reaction in a tube reactor, wherein the catalyst is present in the continuous phase and at least one aldehyde is present in a dispersed phase and the loading factor B of the tube reactor is equal to or greater than 0.8; the aldol condensation products obtained in this way can be used for preparing alcohols or carboxylic acids.
摘要:
The invention relates to a method for enriching a homogenous catalyst from a process flow comprising said homogenous catalyst as a component, wherein the process flow is conducted over at least one membrane and wherein the membrane wholly or partially comprises a polymer that has planar polymer units connected to one another via a rigid link and wherein the linker is contorted, such that at least one planar polymer unit is connected to at least one second planar polymer unit via the link, in a non-co-planar arrangement. The invention furthermore relates to a method for producing tridecanal.