Abstract:
The invention provides methods for separating outer birch bark from inner birch bark. The invention also provides methods for isolating betulin; lupeol; betulinic acid; 9,10-epoxy-18-hydroxyoctadecanoic acid; 9,10,18trihydroxyoctadecanoic acid; polyphenolic polymers and fatty acids from birch bark.
Abstract:
A process for recycling a material containing high-tenacity fibers impregnated with a resin matrix includes introducing the material containing the high-tenacity fibers and the resin matrix into a hammer mill having a shaft mounted with at least three series or stages of hammers and a substantially cylindrical sieve disposed substantially concentrically around the shaft, milling the material for a time sufficient to grind at least about 50%, and preferably at least about 80%, of the resin into small particles, and separating the small resin particles from the fibers by means of the sieve. This process allows a very high degree of separation and does not require additional process steps like cryogenical chilling.
Abstract:
Methods and apparatus for mixing two or more drilling fluid components to form a drilling fluid composition. In one embodiment, a method is provided which comprises (a) combining the components in a substantially sealed mixing tank to form a mixture, at least one of the drilling fluid components being dispensed under substantially sealed and externally dust-free conditions from at least one bulk bag into the tank, (b) agitating the mixture within the mixing tank, and (c) circulating at least a portion of the mixture from the mixing tank through grinding means for breaking apart agglomerates within the mixture.
Abstract:
An apparatus for grinding coffee beans, enabling a size of coffee bean grinds to be easily controlled, is disclosed. The apparatus includes a rotating cutter having grinding blades at its upper surface, and rotated by a motor, a fixed cutter positioned above the rotating cutter with a spacing therebetween, and having grinding blades at its lower surface and a central charging inlet formed therethrough, a worm wheel connected to the fixed cutter to raise and lower the fixed cutter, a worm gear engaged with teeth of worm wheel to rotate the worm wheel, and a control motor to rotate the worm gear in normal and reverse directions.
Abstract:
A system for recycling reusable resin mold products recovered from discarded apparatuses is disclosed. This recycling system includes a crushing system for crushing resin mold products one kind by one kind into crushed resinous pieces and packing the same in a bag, a classification system for irradiating a light beam to the resin in the bag and classifying the bags into respective kinds of resins based on a reflected beam therefrom, a cleaning system for separately cleaning the respective kind of crushed resinous pieces taken out of the bag to remove foreign matters adhered onto the surfaces of the crushed resinous pieces therefrom, and a recovery system for recovering the cleaned crushed resinous pieces.
Abstract:
The atomizing systems employed according to the state of the art in the production of powders are normally successively charged with liquid material from one or more melting pots for atomizing purposes. Due to the different ambient conditions that prevail inside the pot or in different pots during the melting or during the transfer of the melt, the resulting powder tends to be quite non-homogeneous. According to the invention, a device that serves to continuously melt a material is installed upstream from an atomizing system. A preferred example of such a device is the device known from WO 97/05440. The invention makes it possible to considerably improve the homogeneity of the powder produced by atomization. The system according to the invention allows not only the atomization of metallic material but also the production of non-metallic powder, especially glass powder.
Abstract:
The present invention comprises a method of comminuting/pulverizing polyurethane-containing materials to produce fine particles. The method of comminuting/pulverizing polyurethane-containing materials comprises first chopping the polyurethane-containing materials, thereby producing a polyurethane-containing flock. The polyurethane-containing flock is then processed to form a powder through a comminuting/pulverizing process wherein the comminuting/pulverizing process has at least two steps. Finally, a solid additive is added at any time during the comminuting/pulverizing process to prevent adherence of the polyurethane-containing materials powder during one of the at least two steps.
Abstract:
A method of separating at least one polymer from a mixture of polymers. The method includes adjusting the temperature of the mixture, either by heating or cooling, to bring the temperature to a temperature at which decombination of the polymer mixture occurs. Mechanical energy is also imparted to the mixture, before, during or after temperature adjustment. The temperature adjustment and application of mechanical energy enable at least one polymer to be separated from the other polymers in the mixture.
Abstract:
A portable device for effectively grinding, crushing and containing burned out fluorescent lamps within a leak-proof two-component safety closure system, comprising a combination of a mounted electric motor-activated hi-speed rotating grinding and crushing means, an internally feeding guide tube means, a strong non-porous containment means, a see-through transparent leak-proof window with cleaning means, and at least a pair of locking and unlocking means, a descent limiting means, and a foot-controllable outwardly extending structural means to help in the easy disengagement of said two-component safety closure system to facilitate the mounting and removal of the said containment means; altogether functioning as an environment-and-user-friendly prevention or minimization of the hazards of spreading the dangerous debris and poisonous contents of burned out fluorescent lamps.
Abstract:
A method and apparatus for breaking down pieces of material into smaller pieces and for separating out different substances making up the material, one of the substances being a fibrous textile and another being metal, comprising the steps of subjecting the pieces to a series of dismemberments to produce progressively smaller pieces falling within a predetermined size range; separating the smaller pieces into a plurality of fractions, each fraction including pieces within a predetermined size range; and subjecting each fraction to a flow of air calibrated to cause separation of the fibrous textile material from the pieces.