Abstract: 4-Amino-3-imidazolin-2-one and (2-methoxy-2-iminoethyl) urea are valuable intermediates for the production of pharmacologically active compounds.

Abstract: By the process of the present invention the activity of heterogeneous catalysts for reactions at normal and low pressures is restored or maintained. These catalysts can lose their activity as a result of the deposition, physisorption or chemisorption of organic or inorganic deactivating substances which are carried over into the reaction system or are formed as the result of side reactions in a chemical synthesis carried out with the aid of the catalyst. The activity is restored or maintained by using a pressure greater than the critical pressure of the fluid phase and a temperature higher than or equal to the critical temperature of the fluid phase. In this process, the pressure and temperature are applied for a period such that the deactivating substances are either removed from the catalyst or are not initially deposited thereon or absorbed or formed.

Abstract: Acyloxybenzenesulfonic acids and their alkali metal and alkaline earth metal salts are prepared by sulfonation of phenol in the presence of a small amount of a complexing agent for the sulfonating agent SO.sub.3 or chlorosulfonic acid, followed by esterification and, if required, neutralization to give the alkali metal or alkaline earth metal salt.

Abstract: Alkylglucosides are prepared by acetalization of glucose with an equivalent amount or an excess of a C.sub.3 -C.sub.5 -alkanol in the presence of an acidic catalyst by a method wherein the acetalization is carried out in the presence of an alkali metal salt of a boric acid used in an amount which is equivalent to or in excess of the amount of the catalyst.The alkylglucosides obtained can be used directly, for example as solubilizers, in particular in the cosmetic sector, or can be reacted further to give higher alkylglucosides.

Abstract: Acyloxybenzenesulfonic acids and their alkali metal and alkaline earth metal salts are prepared by a process comprising sulfonation of a phenyl ester in the presence or absence of a small amount of a complexing agent for the sulfonating agent SO.sub.3 or chlorosulfonic acid, subsequent acylation and, if desired, neutralization to give the alkali metal or alkaline earth metal salt, and, if required, subjecting the latter to oxidative bleaching before drying.

Abstract: Alkali metal and alkaline earth metal salts of acyloxybenzenesulfonic acids of the formula I ##STR1## where R is a saturated or unsaturated alkyl radical of 1 to 17 carbon atoms or is phenyl which is unsubstituted or monosubstituted or disubstituted by alkyl of 1 to 3 carbon atoms, halogen, methoxy or nitro, are prepared by neutralization, by a method in which a liquid acyloxybenzenesulfonic acid of the formula I and an aqueous solution of an alkali metal or alkaline earth metal hydroxide, carbonate or bicarbonate are combined in water, at from 0.degree. to 60.degree. C. and while mixing thoroughly, so that the pH is kept at from 2.5 to 7.0, and, if desired, the resulting salt is isolated from the aqueous solution in a conventional manner.

Abstract: Apparatus for handling bulk material located in a pile at a storage site including a stationary support column that is anchored at the lowermost end thereof. The support column supports a stacker device at the uppermost end thereof, the stacker device being mounted for rotating movement relative to said support column for stacking the material at the storage site in a substantially circular array. A material feed device is mounted over said stacker device and feeds the material thereto during the stacking operation. Mounted for rotary movement relative to said support column is a reclaimer device, the reclaimer device being operable to reclaim the material from the pile for transfer thereof to a discharge area.

Abstract: Fatty alcohol oxyalkylates possessing blocked terminal groups are used as low-foam, antifoaming and biodegradable surfactants for industrial cleaning processes, in particular for bottle-washing and metal-cleaning.

Abstract: 4-Amino-3-imidazolin-2-one and (2-methoxy-2-iminoethyl)urea are valuable intermediates for the production of pharmacologically active compounds.

Abstract: By the process of the present invention the activity of heterogeneous catalysts for reactions at normal and low pressures is restored or maintained. These catalysts can lose their activity as a result of the deposition, physisorption or chemisorption of organic or inorganic deactivating substances which are carried over into the reaction system or are formed as the result of side reactions in a chemical synthesis carried out with the aid of the catalyst. The activity is restored or maintained by using a pressure greater than the critical pressure of the fluid phase and a temperature higher than or equal to the critical temperature of the fluid phase. In this process, the pressure and temperature are applied for a period such that the deactivating substances are either removed from the catalyst or are not initially deposited thereon or absorbed or formed.

Abstract: Alkali metal and alkaline earth metal salts of acyloxybenzenesulfonic acids of the formula I ##STR1## where R is a saturated or unsaturated alkyl radical of 1 to 17 carbon atoms or is phenyl which is unsubstituted or monosubstituted or disubstituted by alkyl of 1 to 3 carbon atoms, halogen, methoxy or nitro, are prepared by neutralization, by a method in which a liquid acyloxybenzenesulfonic acid of the formula I and an aqueous solution of an alkali metal or alkaline earth metal hydroxide, carbonate or bicarbonate are combined in water, at from 0.degree. to 60.degree. C. and while mixing throughly, so that the pH is kept at from 2.5 to 7.0, and, if desired, the resulting salt is isolated from the aqueous solution in a conventional manner.

Abstract: A device for the building up and discharge of an annular dump of bulk on a circular storage site. In the center of the circular storage site is provided at least one jib of a dumping device rotatable about a vertical axis, which is fed with the bulk material by means of a feed belt, the discharge end of which is situated above the dumping device in the center of the device. Moreover there is provided at least one removal device which can be swivelled about said vertical axis and machinery situated in the neighborhood of the center by means of which the bulk material removed is fed to a conveyor belt passing through said vertical axis. The removal device and the jib of the dumping device are arranged on a framework which is supported and guided on at least one circular railway concentric with said axis.

Abstract: Apparatus for checking a structural component for inherent stresses includes strain gage means for attachment to a surface measuring area of the component, the strain gage means having terminals for leads, means for cutting an annular groove into the component around the area, electrical response measuring means remote from the area, and leads extending from the terminals of the strain gage means to the electrical response measuring means for measuring the change in electrical response of the strain gage means due to the cutting of successive layers of material out of the groove, as indicative of the inherent stress existing prior thereto, the cutting means includes a crown boring tool for machining the annular groove around the measuring area, the crown boring tool having a shaft hollow throughout and being mounted in a hollow boring spindle, the terminal leads of the strain gage means attached to the measuring area extending through the crown boring tool and the hollow boring spindle.