Abstract:
A tank furnace for the inertization of non-flammable batch, which contains hazardous substances, metals and less than 10% by weight of carbon, by vitrification with glass forming aggregates by producing a glassy melt. The furnace has a batch charging device and a tank, on the rim of which a furnace crown rests, electrodes for heating the melt, a supply of oxidizing gases to the melt and, as an outlet for the melt, an overflow channel which can be heated. Nozzles are installed in the bottom of the tank to introduce oxidizing gases in order to reduce the eluate values, and the electrodes are immersed in the melt from above. It is preferable to install the nozzles at sloping sidewalls of the tank which slope upwardly and outwardly.
Abstract:
The invention relates to cyclic urea derivatives of general formula ##STR1## wherein R.sub.a, R.sub.b, X and Y are as defined herein, pharmaceutical compositions containing the derivatives and processes for preparing them.
Abstract:
The invention relates to cyclic derivatives of general formula ##STR1## wherein R.sub.a, R.sub.b, X and Y are as defined in claim 1, the tautomers, the stereoisomers including the mixtures thereof and the salts thereof, particularly the physiologically acceptable salts thereof with organic or inorganic acids or bases, which have valuable pharmacological properties, preferably aggregation-inhibiting effects, pharmaceutical compositions containing the compounds and processes for preparing them.
Abstract:
The invention relates to cyclic derivatives of general formula ##STR1## wherein R.sub.a, R.sub.b, X and Y are as defined in claim 1, the tautomers, the stereoisomers including the mixtures thereof and the salts thereof, particularly the physiologically acceptable salts thereof with organic or inorganic acids or bases, which have valuable pharmacological properties, preferably aggregation-inhibiting effects, pharmaceutical compositions containing the compounds and processes for preparing them.
Abstract:
The invention relates to cyclic imino derivatives of general formula ##STR1## wherein A to G, R.sub.1, Z.sub.1 to Z.sub.6, X and Y are defined as in claim 1, the tautomers, stereoisomers and mixtures thereof and the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases, which have valuable pharmacological properties, preferably aggregation-inhibiting properties, pharmaceutical compositions which contain these compounds and processes for preparing them.
Abstract:
A gas burner used in glass melting furnace comprising a mixing tube having a perforated mixture for mixing fuel gas with air inspirated by gas flow, means for supplying fuel gas to the mixing tube and an inspiration tube located in the mixing tube. The perforated mixer is situated inside the mixing tube at the end of the inspiration tube. The gas burner also comprises a means for moving the air inspiration tube longitudinally with respect to the mixing tube and a seal located between the perforated mixer and the inside surface of the mixing tube to allow the perforated mixer to move longitudinally with respect to said mixing tube.
Abstract:
Apparatus includes a furnace for vitrifying waste material, a storage container for delivering waste material to the furnace and a pipe for passing a heat transfer medium through the storage container to preheat the waste material and remove water therefrom. The pipe may be a pipe through which exhaust gas is passed or a pipe through which a liquid medium is passed after heat transfer from the exhaust gas. The apparatus further includes means for removing dust from the exhaust gas and heating same to break down dioxines and furanes therein.
Abstract:
A preheater for cullet is disclosed, in which hot gas coming from a hot supply duct can be passed through the cullet while yielding heat to the latter and can be carried away through a hot gas exhaust duct. The cullet is guided between guiding walls forming a cullet shaft and permitting gas entry as well as gas exit. Means are provided for repeatedly moving at least one of the guiding walls (23, 24,25,26) laterally relative to another guiding wall (23-26) so as to change the spacing between them.
Abstract:
Disclosed is an improved efficiency glass melting furnace and a method of operation in which a mixture, or batch, is fed at a narrow side of a rectangular glass melting tank onto the molten glass mass (or bath) across the full width thereof. The furnace includes burners positioned adjacent to the opposite narrow side for supplying energy, and heat exchangers for energy exchange between the combustion exhaust gases and the combustion air supplied to the burners. The exhaust gas openings are disposed adjacent to the mixture feeding area. The furnace is provided with at least one thermal radiation shield between the burner and feed sections which extends to a small distance above the molten glass.
Abstract:
The method of using compounds of the formula ##STR1## wherein R.sub.1 is hydrogen, fluorine, chlorine, bromine, iodine or cyano,R.sub.2 is fluorine, cyano, trifluoromethyl, nitro or alkyl of 1 to 4 carbon atoms,R.sub.3 is cycloalkyl or alkyl, each of 3 to 5 carbon atoms, andR.sub.4 is hydrogen or --CO--R.sub.5, whereR.sub.5 is alkoxy of 1 to 5 carbon atoms, alkenyloxy of 2 to 5 carbon atoms, aryloxy of 6 to 10 carbon atoms, aralkoxy of 7 to 11 carbon atoms, or amino which may be mono- or di-substituted by alkyl of 1 to 5 carbon atoms, alkenyl of 2 to 5 carbon atoms, aryl of 6 to 10 carbon atoms and/or aralkyl of 7 to 11 carbon atoms,and non-toxic, pharmacologically acceptable acid addition salts thereof as antirheumatics and antiphlogistics.