Assignee: General Chemical Corporation

Location: Parsippany, NJ
No. of patents: 38

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Number	Title	Issue Date
7067100	Liquid ferric sulfate manufacturing process A process for the production of liquid ferric sulfate from finely-divided ferric oxide, sulfuric acid and water in a closed reaction vessel at temperatures ranging from about 130.degree. C. to about 150.degree. C. and pressures from about 30 psi to about 70 psi. The...	06/27/2006
6869894	Spin-on adhesive for temporary wafer coating and mounting to support wafer thinning and backside processing A liquid form adhesive system is provided for spin-coating on wafers and mounting to rigid carrier substrates to support thinning and backside processing. The liquid adhesive comprises about 30-35% of a rosin, between 5-10% of a thermoplastic urethane, a nonionic su...	03/22/2005
6805802	De-watering process Process muds are de-watered by the addition of high clay alumina. The clay is mixed with plant sludges or muds so as to cause flocculation of the solid particles, and separating the water from the solid materials, as by filtration. Various polymers and/or alum proce...	10/19/2004
6667021	Method for producing enhanced sodium carbonate crystals for making sodium bicarbonate n the manufacture of sodium carbonate having increased CO2 uptakes the carbonation reaction to form sodium bicarbonate is enhanced by the addition of particular amounts of a cationic quaternary amine, selected from the family of dialkylethoxyla...	12/23/2003
6551973	Stable metal-safe stripper for removing cured negative-tone novolak and acrylic photoresists and post-etch residue A stripping composition is provided for removing polymeric organic substances from an inorganic substrate. The stripping composition comprises about 3 to about 15 weight percent aromatic quaternary ammonium hydroxide, preferably benzyltrimethylammonium hy...	04/22/2003
6537464	Mid-basicity aluminum compounds and methods of making A method of making poly aluminum chloride water treatment products comprising reacting an aluminum compound with a base at a temperature in the range of about 70 to 250° F., measuring the aluminum oxide content and adding water to the reaction product as...	03/25/2003
6530343	Control of ammonia and phosphorus in milking parlors A method of controlling ammonia levels and soluble phosphorus generated from the animal waste in milking parlors comprising applying to the parlor floor an acidic aluminum salt liquid. The treatment effective amount is effective to reduce phosphorus solub...	03/11/2003
6468518	Deliquescent salt addition to alum used to treat animal waste products Animal enclosures such as poultry houses generate high amounts of ammonia that adversely affect weight gain and mortality or the animals, particularly among young chicks. The addition of a deliquescent salt, such as calcium chloride, to alum to treat anim...	10/22/2002
6270740	Method of producing modified sodium carbonate crystals for the production of sodium bicarbonate An improved method of purifying sodium carbonate from a natural source whereby a dissolved sodium carbonate product is treated with a cationic compound, such as a quaternary amine, to react with carbon-containing contaminants and filtering the product. Th...	08/07/2001
6075212	Method of weighing railroad cars without uncoupling them An apparatus and method for accurately weighing a rail car coupled to other rail cars without uncoupling the rail car to be weighed includes a hydraulically operated positioning device assembly with opposed pushers that can be elevated to hold the axle of...	06/13/2000
5938970	Polynucleate metal hydroxide compounds and method for their preparation Polynucleate metal hydroxide anionic compounds and method for their production. The compounds have the formula: Ma Nb (OH)c Xd Ye Zf.(H2 O)g wherein M is a tri- or more valent m...	08/17/1999
5935487	Corrosion inhibited calcium chloride solids and brine solutions The addition of an effective amount of a liquid modified diethanolamide to a calcium chloride composition, which can be a brine solution or a solid, reduces the amount of corrosion of metals by the resulting composition. The calcium chloride/diethanolamid...	08/10/1999
5919377	System for transporting solid materials A railroad tank car can be filled with a slurry of a solid and a solvent therefor. The tank car is fitted with a feed distribution header that is provided with a plurality of predetermined spaced openings. The header is mounted in the car so that after th...	07/06/1999
5840207	Corrosion inhibited calcium chloride solids and brine solutions The addition of an effective amount of a liquid modified diethanolamide which is suitably a reaction product of cocoamide and phthalic anhydride to a calcium chloride composition, which can be a brine solution or a solid, reduces the amount of corrosion o...	11/24/1998
5830522	Method for preserving seafood Shrimp and other seafood can be preserved to extend their freshness shelf life by immersing them in an aqueous solution prepared by dissolving a dry mixture containing sodium metabisulfite with from 30 to 50% by weight of sodium sulfite. These solutions h...	11/03/1998
5766485	Color removal from effluent waters Alum process residues (APR) are used to remove colored contaminants from waste waters. In addition, in accordance with the invention, up to 0.1% by weight of alum and up to 5 ppm of a polyelectrolyte polymer is added to improve color removal, turbidity re...	06/16/1998
5755858	Synthetic topsoil composition A topsoil composition comprising an alumina clay, an organic compost and sand effective to nurture and sustain plants. The proportions of the ingredients are chosen to provide good nutrients to plants, good water retention and good water drainage properti...	05/26/1998
5636449	Water removal from solid products and apparatus therefor A tube dryer system is used to remove moisture from solid commercial products. The present apparatus includes a condensate vessel that separates condensed steam from excess steam. The excess steam is passed through a thermocompressor and combined with inc...	06/10/1997
5558772	Stable nitrite solutions The action of the bacterium Nitrobacter agilis to oxidize nitrite ions to nitrate ions in aqueous solutions is well known. We have found that if the nitrite ion concentration in solution is maintained at a level of at least 2.5 percent by weight and highe...	09/24/1996
5549422	Automatic water flushing method for a hydrator An improved hydration method heat avoids clogging for the transfer, solvation, and storage of dry particulate matter for a sealed solvation hopper chamber in combination with a liquid driven eductor and equipped to be connected to a storage container. Spe...	08/27/1996
5409528	Corrosion inhibitors for coatings A coating formulation containing as a corrosion inhibitor an effective amount of a tertiary or quaternary organo ammonium nitrite having a solubility such that it produces a concentration of nitrite ions in water of from about 1×10-6 mol per l...	04/25/1995
5338457	Removal of aluminum and sulfate ions from aqueous solutions A process for removing aluminum and sulfate values from an aqueous solution containing the same which comprises passing the solution through a semi-permeable membrane in a pressure vessel. The permeate solution is depleted of aluminum and sulfate ions and...	08/16/1994
5269636	Apparatus and method for transferring dry bulk materials having an improved loading pan The present invention comprises an unloading pan for bulk dry particulate matter, such as soda ash. The pan comprises a pan inlet and a pan outlet. The pan is preferably designed wherein the source of particulate matter is a railroad car having a car outl...	12/14/1993
5266296	Cocurrent flow process for the manufacture of sodium sulfite and bisulfite solutions Sodium (bi)sulfites are produced by the steps of: (a) introducing a stream of aqueous sodium carbonate into the top end of a main packed column reactor; (b) introducing a stream of sulfur dioxide gas into the top end of the main packed column reactor concurren...	11/30/1993
5263570	Conveyor belt emergency stop indicator light system A system and method is provided for expeditiously locating an emergency situation of a conveyor. An emergency switch is connected to a conveyor to indicate an emergency situation. When the emergency switch indicates an emergency situation, a light is illu...	11/23/1993
5195851	Apparatus and method for transferring dry bulk materials having an improved unloading adapter The present invention relates to an adapter which is useful to receive dry bulk chemicals with a minimum of dust escaping to the environment and which screens the free flowing dry bulk chemicals....	03/23/1993
5190147	Tensioning car for flexible continuous tram A tensioning car for a flexible continuous tram comprises a center beam structure adapted to support a segment of the transport belt and a pair of side beam structures, one on each side of the center beam structure and each having coupling devices for cou...	03/02/1993
5186526	One-piece crawler pad A one piece crawler pad has a substantially rectangular body portion having first and second narrow ends and first and second major surfaces. The interior space of a centrally located protrusion is sized to receive a portion of a chain link. Bolts passing...	02/16/1993
5123709	Hydraulic aligner device for flexible continuous tram mining machine A moveable hydraulic aligner device, particularly suited for aligning a roadway used with a full continuous tram mining machine following a drilling cycle, comprises an upper portion, supported by wheels which allow the device to ride along the length of ...	06/23/1992
5108153	Elevated roadway for continuous haulage unit An elevated roadway for use with a self-propelled continuous haulage unit in underground mining consists of a multiplicity of substantially identical roadway units joined together end to end. Each unit has a pair of elongated bottom side beams joined by b...	04/28/1992
5039427	Method of treating lake water with aluminum hydroxide sulfate A method of treating lake water to remove suspended solids and to precipitate and inactivate phosphorus comprises adding aluminum hydroxide sulfate to the water in a concentration such that the pH of the water is maintained at a level of greater than 6.0 ...	08/13/1991
5017301	Method for permanganate bleaching of fabric and garments Permanganate based fabric bleaching processes, such as stone-washing processes, are substantially improved by utilizing a reducing composition comprising a metabisulfite and a sulfite in the washing step. The relative amounts of metabisulfite and sulfite ...	05/21/1991
4884925	Apparatus and method for transfer and slurrying or dissolving hydratable dry bulk chemicals An apparatus for the transfer of a dry chemical is formed having a sealed solvation hopper positioned between a liquid driven eductor and a fitting for connection to a storage container, e.g. a railcar. At the inlet end of the solvation hopper is a chemic...	12/05/1989
4869882	Recovery of sodium carbonate values from contaminated dilute soda ash streams Soda values are recovered from waste water and impurities are rejected to bitterns ponds by a low temperature crystallization process. In the process, waste water, typically containing 7-14% equivalent soda ash, is reacted with lime to neutralize bicarbon...	09/26/1989
4814106	Manufacture of a basic metal hydroxysulfate complex in solid form A product containing calcium sulfate hemihydrate and polynucleate basic metal hydroxysulfate complex in solid form provides a positively charged polynucleate complex possessing charge neutralizing properties in systems containing suspended or colloidal ne...	03/21/1989
4795476	Method for permanganate bleaching of fabric and garments Permanganate based fabric bleaching processes, such as stone-washing processes, are substantially improved by utilizing a reducing composition comprising a metabisulfite and a sulfite in the washing step. The relative amounts of metabisulfite and sulfite ...	01/03/1989
4743439	Wet calcination of alkali metal bicarbonates in hydrophobic media A process for the wet calcination of sodium bicarbonate, sodium sesquicarbonate or mixtures thereof comprising forming a suspension of sodium bicarbonate, sodium sesquicarbonate or said mixture in a water-immiscible relative high boiling liquid, and heati...	05/10/1988
4738836	Preparation of high bulk density anhydrous sodium carbonate crystals Sodium carbonate having a high bulk density and pseudo-cubic crystal structure is prepared from impure trona purge liquors from the crystallizers containing high concentration of organics, silica and sulfate by a sequence of steps involving (1) treatment ...	04/19/1988

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Assignee: General Chemical Corporation