摘要:
Reaction mixtures which are obtained on hydroformylation or carbonylation of olefinically unsaturated compounds and which contain dissolved non-volatile complex compounds of metals of group VIII of the periodic table are worked up by a method wherein the products, after distillative removal of low-boiling constituents alone, or of these constituents plus a part of the high-boiling residue, or a part of the high-boiling residue after distillative removal of the desired products, are or is extracted with carbon dioxide, a C.sub.2 -C.sub.4 -paraffin, a C.sub.2 -C.sub.4 -olefin or a normally gaseous halohydrocarbon at above the critical temperature and above the critical pressure of these (extractant) compounds.
摘要:
Aldehydes are prepared by hydroformylating the corresponding olefinically unsaturated compounds with the aid of rhodium-carbonyl complexes which contain tertiary phosphines as ligands, by carrying out the reaction in the presence of compounds of copper, silver or zinc which are soluble in the reaction mixture and do not contain any component which deactivates the rhodium-carbonyl complexes.
摘要:
Olefinically unsaturated compounds are continuously hydroformylated under from 2 to 30 bar and at from 80.degree. to 130.degree. C. using, as a catalyst, a rhodium complex which contains, as ligands, sparingly volatile compounds of the general formula I ##STR1## where A is phosphorus, arsenic, antimony or bismuth and R.sup.1, R.sup.2 and R.sup.3 are each organic radicals, by a method in which the hydroformylation mixture consisting of liquid and gaseous components is removed from the reactor and is subjected to relatively high temperatures and/or relatively low pressures for a short time in a devolatilization column, the mixture at the same time being separated into a gas phase and a liquid phase, the gas phase is separated into the product and the recycle gas in a separator, and the recycle gas and the liquid phase from the devolatilization column are recycled to the reactor.
摘要:
A process for hydroformylating olefinically unsaturated compounds by means of rhodium/triphenylphosphine/carbonyl complexes formed in situ from rhodium acetate, triphenylphosphine and carbon monoxide, wherein the hydroformylation reaction is preceded by a starting phase in which the mixture of the hydroformylation medium, the triphenylphosphine and rhodium acetate is heated at from 90.degree. to 120.degree. C. under a CO/H.sub.2 pressure of from 5 to 20 bar and the acetic acid liberated is discharged from the reactor in gaseous form in a stream of CO and H.sub.2, until virtually no more acetic acid can be detected in this gaseous discharge.
摘要翻译:一种通过铑/三苯基膦/羰基络合物将乙酸铑,三苯基膦和一氧化碳原位形成的铑/三苯基膦/羰基络合物加氢甲酰化的方法,其中加氢甲酰化反应之前是起始阶段,其中加氢甲酰化介质,三苯基膦和 乙酸铑在50至20巴的CO / H 2压力下加热至90℃至120℃,释放的乙酸以CO和H 2的气流形式从反应器中排出,直到几乎不再 可以在该气体放电中检测乙酸。
摘要:
Pure monoesters of adipic acid are prepared by a process in which(a) a pentenoate is reacted with carbon monoxide and hydrogen at from 90.degree. to 140.degree. C. and under from 5 to 300 bar in the presence of a carbonyl complex of cobalt or of rhodium, and a 5-formylvalerate is separated off, and(b) the 5-formylvalerate thus obtained is oxidized with molecular oxygen, or with a gas containing this, at from 20.degree. to 100.degree. C. under from 1 to 10 bar.
摘要:
A process for the preparation of succinic acid diesters by carbonylation of acrylic acid esters in the presence of alcohols, using a cobalt carbonyl complex as the catalyst and a heterocyclic nitrogen base as the promoter, at 80.degree.-200.degree. C. and under a carbon monoxide pressure of 60-300 bar, wherein the reaction is carried out in the presence of not less than 20% by weight, based on the amount of all the liquid constituents of the reaction mixture, of an inert liquid and the concentration of the acrylic acid ester is kept, for the predominant part of the reaction time, at below 15% by weight, again based on the amount of all liquid constituents.
摘要:
The invention relates to an input device for a user to perform switching, control and other input and selection operations. Input devices of this type are known in particular in the form of switches, sliders and touch screens on electrical equipment and other controls, e.g. in the vehicle field. The object of the invention is to create solutions that make it possible to create with a large degree of freedom of design an input interface that is advantageous for a user, particularly one that is easy to operate intuitively. This object is attained according to the invention with an input device for providing an input surface for generating switching, control and other input and selection operations, according to an input operation performed by a user, with at least one input organ for forming an input point provided for the generation of that signal, and an evaluation circuit for detecting the input operation performed by the user near the input point, wherein the input organ is embodied such that it supplies a haptic feedback, and the evaluation circuit defines a detection zone in which the input organ is located.
摘要:
A motor vehicle with a roof opening in a fixed roof surface of the motor vehicle and a roof mechanism configured to close and at least partially open the roof opening. The roof mechanism includes a front folding roof system having a front folding-top configured to close and at least partially open a front region of the roof opening, a rear folding roof system having a rear folding-top configured to close and at least partially open a rear region of the roof opening; guide rails configured to permit displacement of the front and rear folding top, respectively, to close and at least partially open the frontad rear regions of the roof opening.
摘要:
A motor vehicle and a method for at least partially opening and closing a folding roof for the motor vehicle. The motor vehicle a roof frame defining a roof opening and a roof mechanism configured to permit a selective closing and at least partial opening of the roof opening. The roof mechanism includes a folding roof system having a hood cover with a plurality of spaced apart first transparent elements in a longitudinal direction of the motor vehicle and a second plurality of transparent elements between the first transparent elements and configured such that, in the at least partial opening of the roof opening, the hood cover forms folds in which the first transparent elements are positioned in an upper, upward-facing side of a fold and the second transparent elements are positioned in a lower, downward-facing side of a fold and are concealed by the first transparent elements.
摘要:
The invention is based on an input panel and switch device for the operation of an electrical appliance, in particular to realize the input of operating settings in household appliances.The invention is based on the task of creating solutions with which input panels can be easily and cheaply produced which are distinguished by high functional reliability and also allow a wide scope for the design of the input interface.This task is solved in accordance with the invention by an input panel for an electrical appliance with an outer-shell structure which as such offers an outer surface for a user to is input commands; several separate input sections which are located in the area of the outer surface and assigned to manually selectable input commands; an evaluation circuit to generate switch signals in conjunction with the input commands entered by manual selection of the input sections; whereby a signal sensor circuit is provided in the area of each input section, whereby the signal sensor circuit comprises a receiver electrode and a modulation circuit and whereby via the modulation circuit the input impedance of the receiver electrode is modulated in accordance with a specific pattern for the signal sensor circuit, in particular a data set, and the selection of the input point can be registered via the evaluation circuit with the aid of feedback effects of the modulation of the input impedance of the signal sensor circuit.