Abstract: The invention relates to a process for the continuous production of nitrobenzene by nitration of benzene with a mixture of nitric acid and sulfuric acid under adiabatic conditions, in which unreacted benzene is separated from the crude product obtained after phase separation before washing thereof, using the adiabatic heat of reaction.

Abstract: The invention relates to a process for the preparation of isocyanates by reaction of the corresponding amines with phosgene in the gas phase, wherein a diluent containing between 90.0000% by weight and 99.9999% by weight of substances which are inert in the phosgenation process and between 0.0001% by weight and 10.0000% by weight of oxygen is present during the conversion of the amine into the gas phase and the molar ratio of amine to oxygen (O2) is ?1,000:1.

Abstract: Nitrobenzene is continuously produced by nitration of benzene with mixed acid under adiabatic conditions. In this process, the pressure upstream of the nitration reactor is from 14 bar to 40 bar above the pressure in the gas phase of the phase separation apparatus used to separate crude nitrobenzene and waste acid.

Abstract: A conveyor system and a method for feeding articles of at least two different types to a downstream processing unit are disclosed. The conveyor system comprises an infeed unit for the articles, an arrangement zone downstream from the infeed unit, and a lane zone downstream from the arrangement zone. In the lane zone the articles are transported to the downstream processing unit in an ordered state. The infeed unit comprises at least two conveyor belts, to each of which there corresponds a direction of transport for the articles in a section of the arrangement zone, wherein the directions of transport enclose an angle between them.

Abstract: Isocyanates are produced by reacting a primary amine with phosgene in the gas phase. In this process, the amine is vaporized and then superheated prior to introduction into the reactor. The amine is superheated to a temperature at least 10° C. above dew point before entry into the reactor. A pressure difference between the vaporizer and entry into the reactor of from 1 to 500 mbar is maintained.

Abstract: The invention relates to a method for treating wastewater containing nitroaromatics and nitrohydroxyaromatics, as for example arises in the production of nitroaromatics or in the production of nitrohydroxyaromatics, by a two-stage method consisting of pre-reduction and wet oxidation.

Abstract: Nitrobenzene is continuously produced by nitration of benzene with mixed acid under adiabatic conditions. In this process, the pressure upstream of the nitration reactor is from 14 bar to 40 bar above the pressure in the gas phase of the phase separation apparatus used to separate crude nitrobenzene and waste acid.

Abstract: A process is provided for the production of hydrocarbons that include olefins from synthesis gas containing at least one of carbon monoxide and or carbon dioxide wherein the synthesis gas is fed to a reactor in which a catalyst acts on the feed at a temperature of between 160° C. and 400° C. and a pressure of between 1 bar and 50 bar. The feed includes a compound containing one or both of nitrogen and phosphorous, such as ammonia and a phosphine, added to the reactor with the synthesis gas. The compound containing nitrogen typically constitutes at least 1 vol % and preferably of the order of 4 to 20 vol % or more of the feed. The carbonaceous gas may be carbon monoxide with a ratio of hydrogen to carbon monoxide in the synthesis gas of from 0.5:1 to 5:1. The catalyst is preferably a supported cobalt catalyst and may be modified with a promoter. The process produces an enhanced proportion of olefins, especially linear olefins, in the hydrocarbons produced.

Abstract: A conveyor system and a method for feeding articles of at least two different types to a downstream processing unit are disclosed. The conveyor system comprises an infeed unit for the articles, an arrangement zone downstream from the infeed unit, and a lane zone downstream from the arrangement zone. In the lane zone the articles are transported to the downstream processing unit in an ordered state. The infeed unit comprises at least two conveyor belts, to each of which there corresponds a direction of transport for the articles in a section of the arrangement zone, wherein the directions of transport enclose an angle between them.

Abstract: A transport device and a method for the transport of articles are disclosed. The transport device is provided with a plurality of single lanes for the single articles having a width (BE). Each single lane is provided with one separating element. Adjacent single lanes are separated by one of the separating elements. The widths (BE) are adjustable with at least one displacing means. At least two adjacent single lanes form a group of lanes with a width (BG). Several of the groups of lanes formed in such a way are slidable to each other. The widths are adjustable with at least a further displacing means.

Abstract: The invention is a novel covering and optical embellishing of surfaces and edges of furniture structures, particularly legs and/or portions of frames and/or bodies of seats or resting furniture, tables, cupboards, shelves, mirrors and the like. The decoration element is comprised substantially of a plurality of long strands having a constant cross sectional area, made from the core of a tropical creeper or palmyra. The ligneous, fibrous strands are free of knots and very flexible, and are arranged with most of them adjacent, parallel, and touching each other without any space, thus forming a complete optical covering on the visible surfaces and edges of the structure. The element made, for example, from "Palmyra" creepers is, because of its inner structure of small channels and absence of knots, substantially perfectly homogeneous on its entire length with respect to its structure and physio-mechanical properties.