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WO/1992/022367A1 |
This invention is a continuous process for drying and solvent extraction of water-wet solids and sludges without experiencing sticky solids comprising the steps of (1) mixing the input solids or sludges with solvent, (2) feeding said mix...
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WO/1992/022365A2 |
The invention relates to a process for the removal of evaporable substances from a solid or pourable substance by means of electromagnetic waves. The polluted substance (5) is weighed and metered and introduced into a desorption chamber ...
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WO/1992/020421A1 |
In the vacuum filtering of coal slurries, dewatering of the filter cake is achieved by contacting the coal with a C8 to C20 aliphatic carboxylic acid or a derivative thereof, especially sodium oleate. Reductions in moisture levels are th...
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WO/1992/020985A1 |
A processor for centrifugal processing of semiconductor wafers (18) and similar units without a wafer carrier. Processor (20) is specially constructed to provide an automatically extendible and retractable rotor head (400) to allow autom...
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WO/1992/020984A1 |
An object of the present invention is to effectively dry products in large quantities and products continuously supplied without lowering the conventional production speed, and the present invention is characterized in that a product pre...
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WO/1992/018058A1 |
A lyophilization bag (10) is provided in which a fluid (30), such as blood, may be introduced, lyophilized without collapsing the bag (10), stored, reconstituted and distributed from the bag without intermediate transfer of the useful co...
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WO/1992/015447A1 |
A method and press for pressing material (11) by way of feeding the material into a gap formed between two pressing surfaces (1, 2; 1', 2'), in which gap the cross section of the material flow is tapered in the forward transfer direction...
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WO/1992/013709A1 |
A method for production of dewatered and loosened biopulp, is described wherein precrushed raw biopulp is press fed against a pair of counter-rotating press rolls between which the biopulp is subjected to a pressure whereby it is dewater...
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WO/1992/014107A1 |
A food damp-drying centrifuge containing a spinner basket (11) having a cover (12) driven by an upper-positioned motor (19) so that when the cover (12) is engaged with the basket (19), actuation of the motor (19) causes the basket (11) t...
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WO/1992/012533A1 |
An apparatus for cleaning and drying workpieces which comprises a closable chamber, means for introducing a cleaning solvent to the chamber, means for removing the solvent from the chamber, means for introducing an inert gas to the chamb...
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WO/1992/011498A1 |
A device for drying articles such as semiconductor wafers (36) comprising a vacuum process chamber (10) for holding articles to be dried; a vapor generator (38) substantially isolated from the process chamber for supplying a substance su...
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WO/1992/004092A1 |
The use is disclosed of 1 to 3 free hydroxy group containing glycerine ethers having general formula (I), in which R?1¿, R?2¿ and R?3¿ are substituents from the group composed of hydrogen atoms, alkyl groups with 8 to 22 carbon atoms ...
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WO/1991/019556A1 |
Addition of alkyl and/or alkenyl polyalkylene glycol ethers as filtration aids in the filtration and/or dehydration of mineral or coal suspensions reduces the dehydration time, and filter cakes with a low residual moisture content are ob...
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WO/1991/013667A1 |
A process and apparatus for reducing sludges, especially those sludges containing heavy metals and generated in elecroplating, to a solid state where the toxic constituents of the waste are prevented from leaching. The process involves m...
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WO/1991/013835A2 |
The present invention relates to a method for preparing a granular fertilizer from manure. The present invention relates further to the treating of manure condensate that results in the processing of manure, to a method for the synthesis...
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WO/1991/012945A1 |
Ware drying apparatus comprising a mould (30) and a frusto-conical mould casing (28). A cap (52) movably vertically by a ram (50) is provided for selectively closing the top of the casing (28). A heating element (58) extends beneath the ...
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WO/1991/013300A1 |
A Multiple Phase Transformation Absorption Melting Process (MPTAM Process) comprises a step of subjecting a feed solution to simultaneous vaporization and freezing operation, denoted as multiple phase transformation operation, to thereby...
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WO/1991/009591A1 |
A method is disclosed for preparing pharmaceutical and other matrix systems that comprises solidifying a matrix composition dissolved or dispersed in a first solvent and subsequently contacting the solidified matrix with a second solvent...
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WO/1991/007085A2 |
Material to be frozen is subjected to a cooling process which involves the application of sound waves, such as ultrasound. The invention has particular application in the frozen food products as margarine, chocolate and ice cream but may...
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WO/1991/004800A1 |
A process and apparatus for the deacidification and removal of moisture and/or solvent from books. Containers of books (10) are moved by conveyor (42) into a drying chamber (C1) where the books are dried under vacuum dielectric heating (...
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WO/1991/004787A1 |
A method of and apparatus for inducing a deacidification chemical compound into the pages of a book by immersing the book in the solution containing the compound with the solvent being subsequently driven off by simultaneously subjecting...
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WO/1991/003309A1 |
A first electode arrangement and a transport element are movable relative to a support. A working space is disposed between the movable elements for advancing moist material along a processing path. As the moist material advances, electr...
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WO/1991/001635A2 |
Material to be frozen is subjected to a cooling process which involves the efficient removal of latent heat of freezing. This can be achieved by subjecting the material being frozen to a greater rate of heat extraction when the latent he...
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WO/1991/001473A1 |
The ultrasonic dryer utilizes the energy of a beam of ultrasounds in order to evaporate liquids for drying hair, hands, clothes, dishes, etc. It can be assisted with hot or cold air, with a continuous partial vacuum or an intermittent to...
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WO/1990/015295A1 |
Mixed hydroxy ethers of general formula (I) R?1¿O-(CH¿2?CH¿2?O)¿x?-CH¿2?-CH(OH)R?2¿, where R?1¿ is an alkyl group with 1 to 10 carbon atoms, R?2¿ is an alkyl group with 8 to 20 carbon atoms and x is a number between 1 and 20, are...
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WO/1990/014567A1 |
A method and apparatus are provided for removing surface liquid from elongate articles such as cans. After sterilisation of filled cans, surface liquid can permit microorganisms to proliferate and risk contamination of the contents. The ...
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WO/1990/013780A1 |
A process for preparing microspheres using very cold temperatures to freeze polymer-biologically active agent mixtures into polymeric microspheres with very high retention of biological activity and material. Polymer is dissolved in a so...
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WO/1990/011840A1 |
A method for acceleration of liquid and bulk materials provides for transformating the energy of the electromagnetic pulse of a generator (1) into the mechanical energy transmitted to the material to be processed by means of a laminated ...
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WO/1990/009247A1 |
A grip demoisturizing device (10) for a sports racquet, or the like, has a normally closed tubular container (11) containing a moisture absorbing powder (17) and a self-closing, elastically yielding flap valve (19) for admitting the grip...
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WO/1990/009677A1 |
Micromechanical structures (15) having surfaces closely spaced from surfaces of a substrate (11) are formed using normal wet etching techniques but are not dried in a conventional manner. While the substrate (11) with the microstructures...
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WO/1990/007686A1 |
An aqueous beneficiated clay slurry (1, 101) is concentrated from a lower solids content to a higher solids content by evaporating water therefrom by passing the aqueous clay slurry (1, 101) through one or more non-contact evaporative he...
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WO/1990/005016A1 |
This invention relates to a method of treating liquid-wet polycarbonate membranes to improve gas separation properties.
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WO/1990/003215A1 |
Osmotic absorbents which possess the ability to absorb liquids to a high degree comprise encapsulated semipermeable polymeric membrane shells containing therein a high osmolality promoter, the ratio of polymer to promoter being in a rang...
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WO/1990/002914A1 |
A spray drying apparatus for drying liquids containing solid materials in dissolved or suspended form, comprising a drying tower (1) with an opening at the bottom, an atomizing device (2) in the upper part of the drying tower for comminu...
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WO/1990/000714A1 |
Cut, mixed vegetables or lettuce in particular are dried in a device having a controllably driven centrifugal basket (20) with an inner envelope (72) shaped as a perforated plate (70) or sieve. The centrifugal basket (20) open at its two...
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WO/1989/012674A1 |
A solvent consisting essentially of a compound of the formula: CHaClbFcCF2CHxClyFz, wherein a + b + c = 3, x + y + z = 3, a + x 1, b + y 1, and 0 a, b, c, x, y, z 3.
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WO/1989/011330A1 |
The invention is a process for drying water-wet polycarbonate membranes by contacting the membrane with a pretreatment fluid containing at least one C1-4 alcohol to remove residual solvent and non-solvent and/or tighten the membrane disc...
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WO/1989/009373A1 |
A method for the continuous drying of a material. The temperature of the material is adjusted to below the boiling point of the material at atmospheric pressure. The material is fed into a vacuum chamber and led through the vacuum chambe...
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WO/1989/007743A1 |
In a process for dewatering wet goods containing granular or particulate material to dry powder form by rapid, economical and energy-saving mechanical means, solid particles are dynamically distributed in at least one drying stage and th...
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WO/1989/001297A1 |
The hypobaric preservation of respiring plant matter without the step of humidifying the storage atmosphere by contacting it with a supplementary body of heated water is hereby disclosed, characterized by storage at controlled and correl...
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WO/1988/006480A1 |
The invention concerns a filter construction in particular for suction driers. The filter construction comprises a first filter material layer (1) of a ceramic material, which is the first layer in relation to the flowing liquid, and a s...
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WO/1988/004551A1 |
A method of preparing a freeze-dried foam including an active ingredient, such as a pharmaceutical, nutrient, diagnostic, insecticide or fertilizer.
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WO/1988/000679A1 |
A drying bag for use by a bowler in order to dry his hand before approach and delivery. A bag made of 100 % polyester tricot knitted fabric of 32 gauge is filled with fuller's earth sericitic clay. The fine pores of the tricot fabric all...
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WO/1987/007002A1 |
A spin drying apparatus for drying semiconductor wafers (32) wherein the wafers are contacted only at the edge thereof by a plurality of radially extending arms (122) and wherein means (200, 202) is provided for preventing the generation...
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WO/1987/005991A1 |
Liquids susceptible to heat damage and having a content of dissolved and/or suspended solids are dried by vacuum while being distributed onto the surface of spherical conveying means (6), the energy required for the evaporation being emi...
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WO/1987/005944A1 |
A vacuum drying machine (1) for tanned skins, with multiple work surfaces (5), which comprises a fixed framework with at least two substantially vertical uprights (3) which extend to the side of a plurality of vertically movable stacked ...
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WO/1987/004779A1 |
In the vacuum drying of solid wood (2) and other wood-based products, the invention provides a method of achieving a better control of the drying process and a better heat economy than by the traditional methods of vacuum drying. This is...
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WO/1987/003455A1 |
A depressurizing, swelling and drying apparatus which comprises a depressurizing chamber connected to a vacuum pump both directly and through a reservoir tank, a drying chamber provided with a depressurizer, a heater and a conveyor, and ...
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WO/1987/002759A1 |
A method of desorbing water vapor molecules from the interior wall surfaces of a vacuum chamber (10) by irradiating the inner wall surfaces by ultraviolet radiation. During the radiation of the inner wall surfaces by the ultraviolet radi...
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WO/1986/007131A1 |
A method and apparatus for freeze drying heat sensitive aqueous products on a continuous basis, utilizing molecular sieves to sequester the sublimating water vapor. At least two beds of sieve (45) are used sequentially, one being heat re...
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