Abstract: A method for producing pressed board deforms the mat with compression and decompression between heated plates upstream of the platens.

Abstract: Organosulfur compounds can be used in complexes with carotenoids for effecting a bathochromic shift in the absorption bands of carotenoids in the UV/vis spectrum. Carotenoid formulations comprising these complexes, a process for preparing these formulations and their use in the food, cosmetics and pharmaceutical sectors are described.

Abstract: Homopolymers, copolymers or block copolymers are prepared by anionic polymerization of acrylates and/or methacrylates in the presence of an initiator composition containing A) an organic alkali metal compound, B) an organic aluminum compound and C) an additive which forms a complex with the alkali metal cation and is selected from the group consisting of open-chain ethers having at least two ether oxygen atoms, macrocyclic ethers and cryptands, or from the group consisting of quaternary cations of the general formula I  where A is N, P, As or Sb and Ra, Rb, Rc and Rd, independently of one another, are each unsubstituted or substituted alkyl, cycloalkyl, aralkyl or aryl, where two neighboring radicals, together with the heteroatom A, may form a 5- or 6-membered heterocyclic structure which may contain one or two further heteroatoms selected from nitrogen, oxygen and sulfur atoms.

Abstract: A press for pressing a mat into a thin panel has a press frame, upper and lower press plates on the frame, upper and lower press belts having confronting lower and upper stretches defining a press gap extending in a horizontal and longitudinal transport direction and respectively running below and above the upper and lower press plates, respective arrays of rollers between each press plate and the respective stretch, and upper and lower flexible intake plates juxtaposed respectively above and below upstream ends of the lower and upper stretches of the belts and defining therewith an intake mouth flaring upstream. An array of spaced differential hydraulic actuators is braced between at least one of the intake plates and the frame and is operable to deform the one intake plate and thereby change the spacings of the belts at the mouth. A controller connected to the actuators can therefore steplessly change the shape and position of the belts at the mouth.

Abstract: A catalyst system containing as active constituentsA) metal complexes of the formula I ##STR1## wherein the substituents have the meanings set forth in the specification andB) a compound capable of forming metallocenium ions.

Abstract: A continuous press for pressing a thick mat into a thin panel has a press frame, upper and lower press belts having confronting lower and upper stretches defining a press gap extending in a horizontal transport direction, upper and lower flexible intake plates juxtaposed respectively above and below upstream ends of the lower and upper stretches of the belts and defining therewith an intake mouth flaring upstream, and a plurality of hydraulic actuators braced between at least one of the intake plates and the frame and operable to deform the one intake plate and thereby change the spacing of the belts at the mouth. A desired shape of the one intake plate at the mouth is established in accordance with the thickness of the mat, the density of the mat, and the thickness of the panel.

Abstract: In metal complexes of the formula I ##STR1## the substituents have the following meanings: M is a metal of transition group III, IV, V or VI of the Periodic Table of the Elements or a metal of the lanthanide series,Y is a negative leaving atom or a negative leaving group,X and X.sup.1 are negatively charged or uncharged atoms of main group IV, V or VI of the Periodic Table of the Elements,Z is hydrogen, C.sub.1 -C.sub.10 -alkyl, C.sub.3 -C.sub.10 -cycloalkyl, C.sub.1 -C.sub.10 -alkoxy, C.sub.1 -C.sub.10 -alkylthio or dialkylamido having from 1 to 4 carbon atoms in each alkyl radical,R.sup.1 to R.sup.11 are hydrogen, carboorganic or organosilicon radicals,n is 0, 1 or 2 andthe valence of M is 2+n.

Abstract: A press for pressing a mat into a thin panel has a press frame, upper and lower press plates on the frame, upper and lower press belts having confronting lower and upper stretches defining a press gap extending in a horizontal and longitudinal transport direction and respectively running below and above the upper and lower press plates, and upper and lower flexible intake plates juxtaposed respectively above and below upstream ends of the lower and upper stretches of the belts and defining therewith an intake mouth flaring upstream. An array of spaced fluid-powered actuators carried on the frame each have outer ends juxtaposed with one of the intake plates. Thermal insulation is provided between the actuator outer ends and the one intake plate to protect the actuators from the heat of the intake plates. Swivel joints, normally ball joints, are provided between the actuator outer ends and the one intake plate.

Abstract: An apparatus for continuously produced pressed board has a structuring belt in the form of a metal wire screen which is fed with a respectively endless steel belt and the wood-based mat passing through a continuous press whose heated upper and lower press platens have the belts guided therealong via rollers displaceable along closed paths. The wire mesh configuration of the structuring belt is continuously impressed into the pressed board strand which is produced.

Abstract: Polyacrylates based on alkyl acrylates or alkyl alkylacrylates or mixtures thereof as monomers are prepared in the presence of an initiator composition containing an alkali metal ester enolate and an organic aluminum compound or a mixture thereof, by a process in which an ester which differs from the monomers is present in the initiator composition, the carbon atom .alpha. to the ester group having no acidic proton.

Abstract: A process for the recovery of carbon monoxide from a purge gas from acetic acid synthetic containing at least carbon monoxide, nitrogen and hydrogen, wherein the purge gas (6) containing at least carbon monoxide, nitrogen and hydrogen is separated into a gas fraction (11) rich in carbon monoxide and a residual gas fraction (12, 13) rich in nitrogen and hydrogen by an adsorption process (G), preferably by a pressure change absorption process, and the gas fraction (11) rich in carbon monoxide is returned upstream of the acetic acid.

Abstract: A continuous press for the production of pressed board comprises an inlet mouth of the steel belts, between which the comminuted material is pressed, which has its contour adjustable by imparting a bending moment to a cantilevered tongue of the respective press platen. The positions of the tongue are set by shifting a slider on the respective press beam to allow a step of a respective abutment staircase to engage a counter bar. The slide has a piston and cylinder setting drive.

Abstract: For recovery of low-boiling hydrocarbons by scrubbing, the crude gas mixture which contains low-boiling and high-boiling hydrocarbons, is treated with a scrubbing agent, by which the high-boiling components are scrubbed-out of the gas mixture. The loaded scrubbing agent, with the addition of liquid medium miscible with the scrubbing agent and which reduces the solubility for the scrubbed-out hydrocarbons, is regenerated and the completely regenerated scrubbing agent is recycled to the scrubbing. The regeneration is preferably divided into the following individual steps:(a) stripping of the loaded scrubbing agent, optionally with addition of medium,(b) addition of the liquid medium to partially regenerate scrubbing agent, decanting of the split phases,(c) stripping of the resultant decanted scrubbing agent/medium mixture, and(d) rectifying the scrubbing agent/medium mixture to separate the scrubbing agent.

Abstract: In a process for the purification of coal gasification gases, synthesis gas and fuel gas are simultaneously produced. In order to obtain a fuel gas rich in CO.sub.2, capable of handling fluctuations in demand, and to produce at the same time a highly concentrated H.sub.2 S fluid fraction, a portion of the crude gas, scrubbed to synthesis gas purity, is utilized for stripping out CO.sub.2 under pressure from scrubbing medium loaded exclusively with CO.sub.2. The partially stripped CO.sub.2 -loaded scrubbing medium is employed for the concentration of sulfur compounds in an H.sub.2 S/COS-loaded scrubbing medium.

Abstract: In a process for the regeneration of a loaded scrubbing medium in a regenerating column which is equipped with a bottoms heater and a heat condenser, the process involving stripping the loaded scrubbing medium with a vapor, wherein after condensation of the vapor in the head condenser the stripped-out components are removed and the remaining condensate is reintroduced to the regenerating column, the improvement comprising that the condensate, prior to being reintroduced to the regenerating column, is at least partially revaporized in a vaporizer and at least a portion of the condensate, prior to its at least partial revaporization in said vaporizer, is recycled into the regeneration column to a section located above the entrance point for the loaded scrubbing medium, is withdrawn again still above the entrance point for the loaded scrubbing medium, and is then passed to said vaporizer.

Abstract: To regenerate a physical solvent, loaded with sour gases, especially CO.sub.2 and H.sub.2 S, the loaded solvent is treated with a stripping gas and/or is expanded to separate absorbed CO.sub.2 and the resultant solvent is subjected to thermal regeneration to desorb H.sub.2 S. To reduce energy requirements during regeneration, the CO.sub.2 desorption is conducted on at least two different temperature levels, the second being for example 30.degree.-80.degree. C. higher than the first, with the first being conducted, e.g., at about those low temperatures conventional to low temperature absorption systems.

Abstract: Two rotationally symmetrically correlated components of a turbomachine, such as a gas turbine engine, define between them an air duct surrounding the axis of the components. A resilient band-like wall section extending radially from the first component bears resiliently in an axial direction against a wall section projecting radially from the second component to provide a seal for the duct. Another wall section of each component cooperate to form a radially extending tongue-in-groove joint, which may incorporate another seal for the duct, this joint permitting relative axial and radial movements between the two components. Means may be provided to maintain the fluid pressure within the duct higher than the pressure exterior thereto. The two components may be joined together by a bayonet-type connection. One of the components may comprise two members so that the member carrying part of the bayonet-type connection can be rotated with respect to the other member during assembly of the two components.

Abstract: In a system for the separation of sour gases especially hydrogen sulfide and carbon dioxide from a raw gaseous mixture e.g., hydrogen-containing in order to form a purified gaseous mixture, comprising scrubbing the gaseous mixture in a first scrubbing stage with a physical scrubbing liquid e.g., methanol having a higher absorbability for hydrogen sulfide than for carbon dioxide, withdrawing from the scrubbing stage a first stream of scrubbing liquid loaded with hydrogen sulfide and carbon dioxide, and regenerating the loaded scrubbing liquid to form (a) a gaseous phase containing hydrogen sulfide, and (b) regenerated scrubbing liquid, the improvement of scrubbing said gaseous phase containing hydrogen sulfide in a second scrubbing stage with a stream of scrubbing liquid capable of absorbing additional H.sub.2 S, e.g., a CO.sub.2 -depleted stream from an H.sub.

Abstract: A turbine nozzle vane suspension arrangement of the type wherein the nozzle vanes are suspended by their outer shroud segments from the outer turbine casing and are suspended by their vane ring segments from an annular vane carrier. The vane carrier has axially spaced apart and radially-extending wall sections cooperating with root-ends projecting radially from the vane ring segments. The vane ring segments and their root-ends, and the vane carrier and its wall sections define between them an annular channel for receiving cooling air. The forward wall section of the vane carrier is axially resilient and bears resiliently against the forward vane root-end to provide a seal for the annular channel. The resilient forward wall section can be flexed axially rearwardly to permit the vane ring segments to be mounted on the vane carrier.

Abstract: In a process for separating and obtaining as product gases at least two gaseous components from a gaseous mixture containing same by scrubbing with a physical scrubbing liquid exhibiting a higher dissolving power for at least one of the components to be separated than for at least one other of these components, wherein a first scrubbing liquid stream, loaded with all of the components to be separated, and a second scrubbing liquid stream, merely containing proportions of the less soluble component or components, are withdrawn from the scrubbing stage; a gaseous fraction is liberated by expansion of the first scrubbing liquid stream, freed of the more soluble component or components by treatment with the second, likewise expanded scrubbing liquid stream and withdrawn as a first product stream; and the scrubbing liquid streams are finally subjected to a separation of the more soluble components as well as of residual proportions of the less soluble components, thus obtaining a second product gas, the improvemen