5487398 Rotary cleaning method with chemical solutions and rotary cleaning apparatus with chemical solutions

5487398 Rotary cleaning method with chemical solutions and rotary cleaning apparatus with chemical solutions

PatentsALERT ROTARY CLEANING METHOD WITH CHEMICAL SOLUTIONS AND ROTARY CLEANING APPARATUS WITH CHEMICAL SOLUTIONS Ohmi Tadahir, Yonekawa Naomich; Hor...

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PatentsALERT

ROTARY CLEANING METHOD WITH CHEMICAL SOLUTIONS AND ROTARY CLEANING APPARATUS WITH CHEMICAL SOLUTIONS Ohmi Tadahir, Yonekawa Naomich; Horiki Hiroyuki; Kaji Toshimitsu; Ktmimoto Fumitom; Tamaki Takeo Aoba ku, Sendai shi, Miyaga ken JAPAN assigned to Ohmi Tadahiro; Nisso Engineering Co Ltd; MTC Co Ltd To provide a cleaning method and a cleaning apparatus for decreasing the total cost by producing high-performance semiconductor using silicon wafers with cleaner surface, decreasing the semiconductor production cost, decreasing the consumption of chemical solutions and the cleaning time by using a new cleaning method and apparatus, simplifying the recovery of waste liquids, and decreasing equipment investment. A cleaning method having a plurality of chemical-solution-cleaning processes characterized by performing a chemical-solution-cleaning process for continuously feeding a chemical solution to the surface of an object to be cleaned from an upper part of the object surface by horizontally setting the object in a cleaning bath, closing the bath, and then rotating the object and an ultrapure-water-cleaning process for feeding ultrapure water in order for each chemical solution in the same cleaning bath; and thereafter drying the object after cleaning it.

5487907 PROCESS TO RECOVER OIL FROM CRUMBS, FOOD PARTICLES AND CARBOHYDRATE MATRICES Drown David C; Montez Kare STATES

Moscow, ID, UNITED

This invention generally provides a process and apparatus for the separation of oil or fat from food particles, carbohydrate matrices and crumbs in a continuous process, and for the reuse and/or recycling of the separated oil or fat. This invention more particularly provides an apparatus and a process in which the crumbs are mixed with hot water and agitated for a predetermined time, after which the agitated mixture is introduced into a non-turbulent container where the oil/fat, the water and the crumbs are allowed to stratify. Upon stratification, a high quality oil/fat separates and rises based on its relative buoyancy and can then be removed and reused. The water and the crumbs also separate by stratification and can also be similarly removed.

74

J. Cleaner

Prod. Volume

4, Number

1

PROCESSFOR THE PREPARATION OF ALKYLENE GLYCOLS Reman Willem; Van Kruchten Eugene M G A Amsterdam, NETHERLANDS assigned to Shell Oil Company A process for the preparation of alkylene glycols comprising reacting an alkylene oxide with water in the presence of a catalyst composition comprising a solid material having one or more electropositive sites, which are coordinated with one or more anions other than metalate or halogen anions, with the proviso that when the solid material is an anionic exchange resin of the quatemary ammonium type and the anion is bicarbonate, the process is performed in the substantial absence of carbon dioxide.

5488185 PROCESSFOR THE PRODUCTION OF ETHANOL AND ISOPROPANOL Ramachandran Ramakrishnan; Dao Lot H Allendale, NJ, UNITED STATES assigned to The BOC Group Inc An ethene stream which contains ethane as an impurity or a propene stream which contains propane as an impurity is hydrated with water vapor in the presence of a hydration catalyst to produce ethanol or isopropanol, respectively. After removal of the alcohol the gaseous product stream is subjected to adsorption, thereby producing an ethene-enriched stream or a propene-enriched stream. The ethene-enriched stream or the propene-enriched stream is recycled to the hydration reactor.

5488447 SYSTEM AND METHOD FOR TRANSFERRING A FLUID BETWEEN A CONTAINER AND AN ASSOCIATED APPARATUS FOR USING THE FLUID Patton David L; Harris Clark E; Rosenburgh John H Webster, NY, UNITED STATES assigned to Eastman Kodak Company A system and method are taught for transferring fluids between a container and an associated apparatus for using the fluid. Interface members on the container cooperate with sensor probe assemblies and a controller in the associated apparatus to indicate the status of the container as full or partially full of fresh liquid, emptied of fresh