Abstract: The invention relates to mixed oxide catalysts made of hollow shapes for the catalytic gas phase oxidation of olefins, and to a method for producing the catalysts by applying them as a layer to a carrier made of organic material and removing said organic material. The reaction into aldehydes and carboxylic acids occurs by air or oxygen in the presence of inert gases in different quantity ratios, at elevated temperatures and pressure in the presence of said catalysts.

Abstract: The invention relates to mixed oxide catalysts for the catalytic gas-phase oxidation of olefins and methylated aromatics, processes for producing the catalysts and the reaction with air or oxygen in the presence of inert gases in various ratios at elevated temperatures and pressure to form aldehydes and carboxylic acids.

Abstract: A device for fixing and positioning in tubes and its use in tubular reactors.

Abstract: The invention relates to mixed oxide catalysts made of hollow shapes for the catalytic gas phase oxidation of olefins, and to a method for producing the catalysts by applying them as a layer to a carrier made of organic material and removing said organic material. The reaction into aldehydes and carboxylic acids occurs by air or oxygen in the presence of inert gases in different quantity ratios, at elevated temperatures and pressure in the presence of said catalysts.

Abstract: The invention relates to a process for measuring the uniform filling of reactors or columns with solid bodies and to an apparatus for performing the process.

Abstract: The invention relates to a process for hydrogenating an aromatic amine that has at least one amino group bound to an aromatic nucleus with hydrogen in the presence of a supported catalyst that contains at least ruthenium as active metal. The catalyst support has a BET surface area in the range from greater than 30 m2/g to less than 70 m2/g and more than 50% of the pore volume of the catalyst support is formed by macropores having a pore diameter of greater than 50 nm and less than 50% are mesopores having a pore diameter of 2 to 50 nm.

Abstract: The invention relates to mixed oxide catalysts for the catalytic gas-phase oxidation of olefins and methylated aromatics, processes for producing the catalysts and the reaction with air or oxygen in the presence of inert gases in various ratios at elevated temperatures and pressure to form aldehydes and carboxylic acids.

Abstract: A catalyst support including a body having a surface and a coating bonded to the surface is disclosed. The coating includes fissures exhibiting a total fissure length of at least about 500 m/m2 and an adhesive tensile strength of at least about 500 N/m2. Using a catalyst support body to serve in the catalytic reaction of reactants, for example, in a partial oxidation of propene and acrolein to acrolein and acrylic acid, is disclosed. Also disclosed are processes for the: (a) production of a coating for a catalyst support body, (b) preparation of an organic molecule containing at least one double bond and oxygen, (c) production of a water-absorbing polymer, and (d) production of a water-absorbing hygiene article, and chemical products or the use of (meth)acrylic acid in chemical products.

Abstract: The invention relates to a method for filling apparatuses for chemical production with solids using a controllable metering device, and an apparatus, displaceable from place to place, for carrying out the method. The apparatus is suitable in particular for filling heat exchangers, absorption columns, distillation columns or tube-bundle reactors with solids.

Abstract: The invention relates to a process for hydrogenating an aromatic amine that has at least one amino group bound to an aromatic nucleus with hydrogen in the presence of a supported catalyst that contains at least ruthenium as active metal. The catalyst support has a BET surface area in the range from greater than 30 m2/g to less than 70 m2/g and more than 50% of the pore volume of the catalyst support is formed by macropores having a pore diameter of greater than 50 nm and less than 50% are mesopores having a pore diameter of 2 to 50 nm.

Abstract: The invention relates to a process for hydrogenating an aromatic amine that has at least one amino group bound to an aromatic nucleus with hydrogen in the presence of a supported catalyst that contains at least ruthenium as active metal. The catalyst support has a BET surface area in the range from greater than 30 m2/g to less than 70 m2/g and more than 50% of the pore volume of the catalyst support is formed by macropores having a pore diameter of greater than 50 nm and less than 50% are mesopores having a pore diameter of 2 to 50 nm.

Abstract: The invention relates to a device for fixing and positioning in tubes and its use in tubular reactors.

Abstract: The invention relates to a method for measuring the uniform filling of reactors or columns with solid matter and an apparatus for carrying out the method.

Abstract: A valve arrangement, which possesses at least one valve, which is has a valve housing provided with housing ducts. On opposite sides of the valve housing there are first and a second interfaces for the fitting of a first and a second connection board. Each connection board comprises at least one connection duct communicating with a housing duct and is held on the valve housing because on the one hand it is anchored by way of retaining means on the valve housing and on the other hand is fixed by means of attachment means passing internally externally through the valve housing on the oppositely placed second connection board.

Abstract: A shaped metal fixed-bed catalyst is disclosed which is made from at least one catalyst alloy formed of a catalyst metal and an extractable alloying component. The catalyst is activated in an outer layer with a thickness of 0.1 to 2.0 mm, starting from the surface, by complete or partial extraction of the extractable alloying component. The catalyst may also contain promoters. The catalyst is distinguished from known catalysts in that it is formed exclusively of the catalyst alloy and is free of alpha-aluminum oxide, and has a total pore volume of 0.1 to 0.6 ml/g and a bulk density lower than 2.2 kg/l. The catalyst is used for hydrogenation, dehydrogenation and hydrogenolysis reactions.

Abstract: The invention relates to a process for hydrogenating an aromatic amine that has at least one amino group bound to an aromatic nucleus with hydrogen in the presence of a supported catalyst that contains at least ruthenium as active metal. The catalyst support has a BET surface area in the range from greater than 30 m2/g to less than 70 m2/g and more than 50% of the pore volume of the catalyst support is formed by macropores having a pore diameter of greater than 50 nm and less than 50% are mesopores having a pore diameter of 2 to 50 nm.

Abstract: A manual operating means for the manual emergency and/or auxiliary operation of a normally electrically or pneumatically actuated valve. Same comprises a manual operating member which in a ready for use condition is so fixed at a housing recess in the valve in a sealing manner that its inner side faces the interior of the housing recess and its outer side is accessible for the application of a manual operating force. The manual operating member is provided with venting means which, in order to avoid the establishment of gage pressure in the housing recess due to leakage, render possible the flow of air from the inner side to the outer side thereof and in the opposite direction prevent the entry of foreign matter in the opposite direction.

Abstract: A valve arrangement, which possesses at least one valve (3), which is has a valve housing (5) provided with housing ducts. On opposite sides of the valve housing (5) there are first and second interfaces (18 and 19) for the fitting of a first and a second connection board (22 and 23). Each connection board comprises at least one connection duct communicating with a housing duct and is held on the valve housing (5) because on the one hand it is anchored by way of retaining means (36) on the valve housing (5) and on the other hand is fixed by means of attachment means (37) passing internally externally through the valve housing (5) on the oppositely placed second connection board (23).

Abstract: A manual operating means for the manual emergency and/or auxiliary operation of a normally electrically or pneumatically actuated valve. Same comprises a manual operating member which in a ready for use condition is so fixed at a housing recess in the valve in a sealing manner that its inner side faces the interior of the housing recess and its outer side is accessible for the application of a manual operating force. The manual operating member is provided with venting means which, in order to avoid the establishment of gage pressure in the housing recess due to leakage, render possible the flow of air from the inner side to the outer side thereof and in the opposite direction prevent the entry of foreign matter in the opposite direction.

Abstract: A shaped metal fixed-bed catalyst is disclosed which contains at least one catalyst alloy formed of a catalyst metal and an extractable alloying component. The catalyst is activated in an outer layer with a thickness of 0.1 to 2.0 mm starting from the surface by complete or partial extraction of the extractable alloying component. The catalyst may also contain promoters. The catalyst is distinguished from known catalyst in that it is formed exclusively of the catalyst alloy and has a total pore volume of 0.1 to 0.6 ml/g. The catalyst is used for hydrogenation, dehydrogenation and hydrogenolysis reactions.