Abstract: Residual metallurgical materials which contain zinc and lead are reprocessed by a thermal treatment in a circulating fluidized bed. The required heat is generated in that solid carbon is combusted in the fluidized bed reactor of the circulating fluidized bed. A solid carbon content of 5 to 30% is maintained in the lower part of the fluidized bed. Oxygen-containing gases are supplied to the upper part of the fluidized bed reactor, and CO.sub.2 is formed only in such an amount that zinc metal will not be reoxidized. Substantially all solids are removed from the discharged suspension in a recycle cyclone and are recycled. The gas is cooled to a temperature at which zinc metal is oxidized to ZnO. The dustlike compounds of zinc and lead are separated from the gas.

Abstract: Complexes of deprotonated hyaluronic acid with 3d metal ions of the 4th period of the Periodic Table and compositions containing these complexes as active ingredients or carriers. A process for the preparation of the complexes and compositions (pharmaceutical and cosmetic compositions) containing these complexes as active ingredients are disclosed in which zinc or cobalt (II) hyaluronate is preferably used as active ingredient.

Abstract: The invention relates to a novel process for the preparation of 13,14-dihydro-15 (R)-17-phenyl-18,19,20-trinor-PGF.sub.2.alpha. isopropyl ester of the formula (I)--wherein R stands for saturated or unsaturated straight, branched or cyclic C.sub.

Abstract: The invention relates to novel tetrazine derivatives of the formula (I), ##STR1## wherein X is fluorine, chlorine or bromine; andY is hydrogen or fluorine, as well as to a process for the preparation thereof.Furthermore, the invention relates to compositions containing the above compounds as well as to a process for the preparation thereof. The compounds and compositions according to the invention have acaricidal; larvicidal an ovicidal effects.

Abstract: The present invention relates to a process for the preparation of L-isomer of propargyl-ammonium-chloride derivatives of the formula (I) ##STR1## by decomposing D-tartarte of L-isomer of the amine of the general ##STR2## wherein y is hydrogen or fluoro and by reacting the obtained L-issomer amine of the formula (II) in the presence of a base with a halide of the formula (V), X--CH.sub.2 --C.ident.CCH wherein X is halogen and by reacting the so obtained L-isomer of the Formula (III) ##STR3## with hydrogen-chloride in an organic solvent, wherein x is a halogen atom,y is a hydrogen or fluorine atom.

Abstract: In a process for a selective flotation of a copper-lead-zinc sulfide ore the raw ore is ground and slurried with water and the resulting suspension is aerated with air to adjust a certain oxidation-reduction potential and is subsequently successively conditioned with SO.sub.2, Ca(OH).sub.2, and collecting and frothing agents, whereafter a flotation of Cu is effected. An oxidation-reduction potential which is 70 to 90% of the oxidation-reduction potential desired for the flotation of Cu is adjusted by the aeration of the suspension with air before the flotation of Cu, the desired oxidation-reduction potential of 60 to 340 mV is adjusted during the flotation of Cu by the aeration with air, the flotation of Cu is effected at a pH of 8.5 to 10.5 and Cu is removed from the flotation process with the froth.

Abstract: To process vanadium-containing residues, the residues are leached in an aqueous slurry with introduction of SO.sub.2, the undissolved solids are removed. To effect a processing which is simple, economical and ecologically satisfactory, vanadium content is precipitated as a tetravalent vanadium compound from the sulfate solution at a pH from 7 to 9 by an addition of alkali metal hydroxide and the precipitate is removed from the alkali metal sulfate solution.

Abstract: An aqueous solution which contains ammonium polysulfide is proportionally added to the sour water, which contains cyanide ions, ammonium ions, and sulfide ions. At least part of the cyanide ions contained in the sour water is converted to thiocyanate ions by the ammonium polysulfide. The solution which contains ammonium polysulfide is prepared from an aqueous solution by oxidation in an electrochemical cell. That aqueous solution may consist entirely or in part of sour water.

Abstract: A mixing device, especially for a fermenter, capable of dispersing gas in a broth therein, in which a number of propeller mixers are provided on a vertically extending shaft. The lower propeller mixer is a gas dispersing mixer having a hollow hub and open channels on the blades extending from this hub and tapering outwardly. At least one intermediate propeller mixer has some blades shorter than others and of reverse flow direction, some blades having baffle bars on trail edges thereof. The upper propeller mixer has the longer blades without channels and flow modifying elements.

Abstract: The starting material is a vanadium-containing residue, which contains at least 5 weight percent carbon on an anhydrous basis. The residue is thermally treated in a furnace a) at temperatures from 400.degree. to 700.degree. C. under an oxidizing atmosphere and an O.sub.2 partial pressure of at least 10.sup.-4 bar, measured within the region which is occupied by the residue, and/or b) at temperatures from 500.degree. to 1300.degree. C. under an O.sub.2 partial pressure not in excess of 10.sup.-2 bar, measured within the region which is occupied by the residue. A solids mixture which contains at least 5 weight percent vanadium oxide is withdrawn from the furnace. A multiple-hearth furnace or a rotary kiln or a fluidized bed reactor containing a stationary or circulating fluidized bed may be used as a furnace for the thermal treatment.

Abstract: The invention relates to novel combined compositions for combatting plant, animal and sanitarian as well as forestry, horticultural and warehouse pests. These compositions contain a pyrethroid-type insecticide as an insecticidally active ingredient and at least one fungicide inhibiting the ergosterol biosynthesis as activity-strengthening agent as well as optionally piperonylbutoxide and other additives.The advantages of the compositions according to the invention consist therein that the activity-strengthening substances used are fungicidal agents widely used and have an advantageous toxicology. The activity-strengthening agent exerts a synergistic effect together with the pyrethroid-type insecticide.The combinations according to the invention bear an outstanding importance in the protection of stored crops.

Abstract: New monoquaternary and diquaternary 5-alpha-hydroxy-3,16-diaminoandrostane salts are disclosed with curare-like muscle relaxant activity. The new salts are characterized by a surprisingly rapid onset time.

Abstract: In a process of producing copper(I) oxide by the action of an aqueous solution of a mineral acid and of oxygen-containing gas on small-lump copper metal with continuous agitation, a temperature from 10.degree. to 40.degree. C., preferably from 15.degree. to 35.degree. C., is maintained to effect a formation of particulate yellow copper(I) oxide (Cu.sub.2 O). An organic acid of the group consisting of formic acid, acetic acid, ascorbic acid, preferably ascorbic acid, may be used in addition to the mineral acid.

Abstract: A solid, non-hygroscopic salt of the Formula (I) ##STR1## wherein R.sup.1 is dydroxy or alkyl;A is C.sub.1 to C.sub.

Abstract: The pharmaceutical composition according to the invention consists essentially of:i) one or more, pharmaceutically acceptable, water soluble compounds of boron, fluorine, magnesium, vanadium, manganese, iron, cobalt, nickel, copper, zinc and molybdenum, which compounds do not precipitate with each other or with the other components of the composition and exhibit a neutral or acidic pH in an aqueous medium;ii) glycine;iii) glycerol;iv) L-(+)-ascorbic acid;v) succinic acid;vi) a neutral or acidic and water-soluble, pharmaceutically acceptable salt of ethylenediamine tetraacetic acid;vii) potassium sodium tartrate; andviii) L-(+)-tartaric acid. The composition can be used for the treatment of mucoviscidosis and chronic pain syndromes deriving from locomotor diseases or accompanying diseases of tumorous origin.

Abstract: The invention relates to inclusion complexes of N-ethoxycarbonyl-3-morpholino-sydnonimine or its salts formed with a cyclodextrin derivatives, preparation thereof and pharmaceutical compositions containing the same.The inclusion complex of N-ethoxycarbonyl-3-morpholino-sydnonimine or its salt formed with cyclodextrin derivative is prepared bya) reacting the N-ethoxycarbonyl-3-morpholino-sydnonimine or its salt and the cyclodextrin derivative in a solvent medium, and if desired recovering the complex from the solution by dehydration, orb) high energy milling of the N-ethoxycarbonyl-3-morpholino-sydnonimine or its salt and the cyclodextrin derivative.

Abstract: The invention relates to novel combined compositions for combatting plant, animal and sanitarian as well as forestry, horticultural and warehouse pests. These compositions contain a pyrethroid-type insecticide as an insecticidally active ingredient and at least one fungicide inhibiting the ergosterol biosynthesis as activity-strengthening agent as well as optionally piperonylbutoxide and other additives.The advantages of the compositions according to the invention consist therein that the activity-strengthening substances used are fungicidal agents widely used and have an advantageous toxicology. The activity-strengthening agent exerts a synergistic effect together with the pyrethroid-type insecticide.The combinations according to the invention bear an outstanding importance in the protection of stored crops.

Abstract: The present invention relates to novel 4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxamide derivatives of the general formula (I) and the acid addition salts thereof, pharmaceutical compositions containing them and a process for their preparation. In the general formula (I) ##STR1## R stands for a C.sub.1-12 alkyl group optionally substituted by a C.sub.1-4 alkoxycarbonyl group; a C.sub.3-9 cycloalkyl, adamantyl or optionally substituted phenyl group;R.sup.1 means hydrogen or a C.sub.1-4 alkyl group; orR and R.sup.1 together form a --(CH.sub.2).sub.n -- chain, wherein n is 4, 5 or 6;R.sup.2 stands for hydrogen, a C.sub.1-4 alkyl group or halogen;R.sup.3 represents hydrogen or a C.sub.1-4 alkyl group; andm is 0 or 1.The compounds of the general formula (I) possess a gastroprotective effect and are useful for the prevention and therapy of ulcers of the stomach and the small intestine.

Abstract: A process is described in which iron oxide-containing materials are reduced by a treatment with a gas underpressure in series-connected fluidized bed reactors, wherein hydrocarbons are cracked to produce the fresh reducing gas, reducing gas is fed to the first fluidized bed reactor as a fluidizing gas, the gaseous effluent from the first fluidized bed reactor is dedusted and is then fed as a fluidizing gas to at least one further fluidized bed reactor is dedusted and is subsequently treated in a scrubber-cooler to remove substantially all H.sub.2 O and residual dust, purified gas is recycled as recycle gas to the first fluidized bed reactor and the iron oxide-containing materials are preheated and are subsequently fed to the last fluidized bed reactor. The hydrocarbons are cracked by an approximately stoichiometric steam stoichiometric steam reforming. The freshly produced reducing gas is fed to one or more fluidized bed reactors.

Abstract: The invention relates to a new process for the preparation of antibacterial compounds of the Formula I ##STR1## wherein R.sup.1 stands for phenyl substituted by 1 or 2 halogen atoms;R.sup.2 stands for piperazinyl or 4-methyl-piperazinyl;and pharmaceutically acceptable salts thereof which comprises using a compound of the Formula II ##STR2## wherein R stands for halogen or an aliphatic acyloxy group containing 2 to 6 carbon atoms or an aromatic acyloxy group containing 7 to 11 carbon atoms andR.sup.4 stands for fluorine or chlorine as a starting material.