Abstract: The invention provides an erosion resistant pressure reduction valve or choke comprising a valve housing (1,22) defining a valve chamber (2) connected with an inlet (3) and outlet (4), a stationary first valve body (6,17) arranged in the chamber, and a second valve body (7,18). The second valve body is arranged so as to be turnable or displaceable relative to the first valve body by means of a spindle or the like (14,23). The first and second valve bodies are each provided with corresponding flow-through apertures (19,28). Flow through the valve is regulated by turning or displacing the turnable/displaceable second valve body relative to the first. The apertures in the valve bodies (6,7,17,18) are provided with casings (15,20) made in one piece of polycrystalline diamond.

Abstract: An apparatus for combustion of viscous liquids such as tar from gas filters or the like includes a tank with heating elements, a burner unit and pipe connecting the burner with the tank. The pipe extends into the tank, and an end of the pipe within the tank is connected to a dosage pump of the displacement type.

Abstract: The present invention relates to a method of catalytic production of ammonia, where a gas mixture consisting mainly of unconverted synthesis gas, some ammonia, inert gases and possibly also water is recirculated to the synthesis reactor being first freed from the main part of the ammonia and possibly also water by absorption. The gas mixture is brought in contact with a hygroscopic abosrption agent having two or more OH-groups for absorption of ammonia and possibly also water. The absorption is carried out at a pressure being substantially the same as the ammonia synthesis pressure, and ammonia being desorbed from the absorption agent at a lower pressure and higher temperature than at the absorption. At least part of the possibly present water is removed from the absorption agent before it is supplied to the absorption column. Preferably it si applied ethylene glycol, diethylene glycol or triethylene glycol alone or in mixture as absorption agent.

Abstract: Method for surface modifying substrates characterized in adsorbing on the surface of a solid substrate a polyamine of a high average molecular weight and cross-linking this with crotonaldehyde either simultaneously or by addition in separate steps to produce amino groups on the surface of the substrate, and optionally adsorbing one or several alternating layers of an anionic polysaccharide and of the said polyamine being cross-linked with crotonaldehyde, and optionally finally adsorbing the said polyamine, not cross-linked, to produce free primary amino groups by which chemical entities having a biological activity may be bound by covalent or ionic bonding.

Abstract: Particles in a fluid stream are detected by utilizing one or more probes each provided with at least one measuring or erosion element. The probe is placed in the fluid stream, and the particle content is quantitatively determined by measuring changes of electrical resistance as a function of erosion of the measuring element due to contact with particles moving in the stream. The probe may be equipped with a measuring head having a V-shaped configuration directed upstream, and the two planar surfaces defining the V-shape may each be equipped with one or more measuring elements.

Abstract: A machine for removing slag and metal remainders from crucibles or casting ladles includes a frame on which is disposed a carriage movable in an upwardly inclined direction on guides or rails. The carriage is provided with cutter device having a tool head. A holder for a crucible is tiltable from a first position where the crucible can be placed on the holder to a second, operating position where the crucible is coaxial with the cutter device. The cutter is of the full profile type and is provided with a plurality of first tools which are spaced apart along the periphery of the tool head and second tools which are spaced apart in the radial direction on a front part of the tool head. The second tools are arranged so that the bottom of the crucible will be cleaned completely. The tool head is provided with axial through holes for the transportation therethrough of slag and metal remainders.

Abstract: The present invention relates to a flexible intermediate bulk container (FIBC) for transportation, storage and lifting of bulk material. The container has improved bottom and top construction, and it comprises a hose shape blank made from a round woven fabric or from at least one piece of flat woven fabric joined at its bottom and/or top end after folding the blank in three or more longitudinal folds each consisting of two layers. The length of the joint(s) is less than 1/4 of the container circumference. The FIBC has a filling opening, possibly a liner and might have a lifting loop which is formed by integral extensions of the side walls of the blank.

Abstract: Method for production of a thermostable crosslinked halogen-containing polymer. Expoxygroups are added by way of a monomer as for example glycidylmethacrylate. The crosslinking of the polymer is carried out through an organic silane which can be hydrolyzed. By this method the crosslinking can be separated from the processing of the polymer as it is catalyzed by moisture after the processing is carried out. The crosslinking reaction is carried out very fast. Good thermostability is gained even if the halogen-containing monomer is vinylchloride.

Abstract: A and apparatus for melting and refining of magnesium and magnesium alloys is used both for melting of ingots and remelting of return metal. Metal is melted by pumping an overheated salt melt from a heating zone in a salt melt furnace and distributing it over the metal, which is placed in a basket above the liquid level in the furnace. The metal melts and is immediately removed from the basket without being further heated. A melt composition rich in calcium chloride with a content of calcium fluoride is preferably used.

Abstract: A method for grain refining of light metals is based on formation in situ of a grain refining agent. By means of an electric arc provided over the surface of a melted pool of the metal, a supplied gas, e.g. nitrogen, reacts with the metal to form the agent. The method can be carried out both batchwise or in a continuous process.

Abstract: Hydraulic high density cement slurry, especially for cementation of oil/gas-wells. The slurry contains 30-45 weight % microsilica based on the cement weight and water to a density of 1.9-3.5 g/cm.sup.3. If desired there can be added dispersant, retarder and weighting agent. Microsilica acts as a fluid-loss preventing agent. The addition of microsilica prevents strength retrogression at temperatures above 120.degree. C. and acts as a mechanical stabilizer for the cement slurries. A method for production of the cement slurry is also described.

Abstract: A flexible container for lifting transportation and storing of bulk material is manufactured from a hose-like blank, where one half-length portion of the hose-like blank is turned inside out and threaded onto or fitted over the other half-length portion form an inner sack and an outer sack having a common base or individual abases. The hose-like blank has at a mid-length thereof two or more longitudinal slots or openings separated by the same distance around the circumference of the hose-like blank. One half-length portion is rotated with regard to the other half-length portion around a central axis of the hose-like blank, such that the material of the areas between the slots after rotation forms two or more integrated lifting loops.

Abstract: Deuterated aromatic aldehydes of the formula: ##STR1## where Ar is substituted phenyl, and derivatives thereof represented by the formula: ##STR2## where Ar is substituted or unsubstituted phenyl, and X.sub.1 and X.sub.2 are substituted hetero atoms or together with the carbon to which they are attached form a heterocycle. These compounds are useful as anticancer and analgesic agents.

Abstract: An apparatus for folding and joining boxes formed from flat or basically flat box material includes a device for advancing box materials from stock or storage to a device for pre-treating the box materials by heating prior to welding or by application of glue, a device for folding the box materials and holding the box materials in a folded position until a joining operation is ended, and a device for transporting the thus formed boxes to storage or the like.

Abstract: An alloy based on magnesium with a load at rupture of at least 290 MPa and an elongation at rupture of at least 5%, the alloy comprising by weight, 2 to 11% aluminum, 0 to 1% manganese, 0.1 to 6% strontium, various possible impurities, and the remainder magnesium. The alloy has a structure including a matrix of fine grains of magnesium of a mean size below 3 .mu.m reinforced by intermetallic compounds dispersed homogeneously at the grain boundairies and having a mean size less than 1 .mu.m, the structure remaining unchanged if kept for more than 24 hours at a temperature up to 300.degree. C.

Abstract: The use of L-ascorbic acid, or a pharmaceutically acceptable salt thereof, in combination with 5,6-O-benzylidene-L-ascorbic acid, or 5,6-O-benzylidene-L-ascorbic acid deuterated at least at the 1-position of the aldehyde group of the benzylidene moiety, or a pharmaceutically acceptable salt of such acids, results in a synergistically enhanced cytotoxicity on human carcinoma cells.

Abstract: Fish feed and method for obtaining prophylactic effect on diseases where the bio-available Fe is reduced below 150 mg/kg and where there is established a synergetic effect when the Fe is used in combination with EPA/DHA or other n-3 poly-unsaturated fatty acids or derviatives in amounts up to 8.5% or higher.

Abstract: Anti-cancer platinum complexes such as cisplatin exhibit a synergistically higher level of anti-tumour activity when administered substantially simultaneously either with L-ascorbic acid, or with 5,6-O-benzylidene-L-ascorbic acid or deuterated forms thereof.

Abstract: Process for production of magnesium chloride with sufficient purity for the production of magnesium metal, by leaching a magnesium containing raw material in hydrochloric acid. It is essential to keep the ratio between acid soluble iron and nickel greater than 120 and the ratio between acid soluble iron and phosphorus greater than 20 in the primary magnesium chloride solution, to obtain a sufficiently pure product. The acid soluble iron can partly or completely be substituted by an equal, molar amount of acid soluble aluminium. It is especially preferred to use mixtures of macro- and crypto-crystalline magnesites in the ratio 1:10-10:1 as raw material.

Abstract: Method for production of magnesium chloride, to be used for production of magnesium, by leaching of magnesite in hydrochloric acid. A two-stage leaching process is used where in a first reactor magnesite lumps are dissolved in hydrochloric acid. The magnesium chloride containing solution is led to a second reactor, where finely ground magnesite or hydrochloric acid is added to obtain approximate equivalence between magnesium and chlorine. To precipitate the impurities an excess of magnesium oxide or magnesium hydroxide is added in one or several purification stages.