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| Number | Title | Issue Date |
| 7294278 | Method for oxygenating wastewater A method and apparatus creates gas-enriched fluid that is used to treat wastewater. In one embodiment, the wastewater is withdrawn from a supply of wastewater to be treated, and the wastewater is delivered in an atomized manner to a vessel pressurized with gas to fo... | 11/13/2007 |
| 7066319 | Hyperpolarized gas transport and storage devices and associated transport and storage methods using permanent magnets A transport unit includes a plurality of permanent magnets arranged to provide a magnetic holding field for protecting hyperpolarized gas during storage and/or transport. The permanent magnets are configured in a relatively light weight manner to project a substanti... | 06/27/2006 |
| 7008535 | Apparatus for oxygenating wastewater A method and apparatus creates gas-enriched fluid that is used to treat wastewater. In one embodiment, the wastewater is withdrawn from a supply of wastewater to be treated, and the wastewater is delivered in an atomized manner to a vessel pressurized with gas to fo... | 03/07/2006 |
| 5859267 | Process for improving color of basic metal organic salts and stabilizing halogen-containing polymers therewith A light colored basic alkali or alkaline earth metal organic salt is obtained by the reaction of a basic metal compound, an alkyl phenol and/or a carboxylic acid, carbon dioxide, and thereafter post-treating the reaction product with an organic phosphite.... | 01/12/1999 |
| 5646330 | Production of enantiomerically enriched ortho-substituted ,-diaromatic methanols A method of producing compounds of formula I ##STR1## wherein one of R1 and R2 is selected from --OH, --SH, and --NHR7 ; and the other of R1 and R2 is selected from H, --OH, --SH, --NHR7 | 07/08/1997 |
| 5399789 | Process and composition A process comprising the addition of a degradation inhibiting effective amount of an amine having a boiling point above that of the phenol used in the process to a composition comprising the said phenol and a bisphenol, the addition occurring prior to a p... | 03/21/1995 |
| 5382708 | Process for inhibiting dihydric phenol degradation and color formation and composition thereof A process for improving the color of bisphenol-A and improving yields of bisphenol-A comprises the addition of hypophosphorus acid either prior to or concurrent with a distillation step.... | 01/17/1995 |
| 5364969 | Method for the stabilization of a sex pheromone compound A novel and very effective method is proposed for the stabilization of a higher aliphatic compound having at least one double bond in a molecule such as the sex pheromone compounds of agricultural pest insects used for the elimination of the pest insect b... | 11/15/1994 |
| 4902836 | Process for inhibiting dihydric phenol degradation and color formation and composition thereof A process which comprises the addition of a dihydric phenol degradation inhibiting and color inhibiting effective amount of a phosphite to a composition comprising a dihydric phenol, phenol, and isomers of the dihydric phenol, said addition occurring prio... | 02/20/1990 |
| 4894486 | Stabilizer for bisphenols and process of using same Lactic, malic and glyceric acids have been found to be superior to the hydroxy acids here-to-fore employed for the stabilization of bisphenols. These hydroxy carboxylic acids or their ammonium or alkali metal salts can be added to the feed reactants used ... | 01/16/1990 |
| 4822922 | Stabilization of mixtures of chlorination of phenol/chlorophenols Mixtures produced by chlorination of phenol/chlorophenols are effectively stabilized by stirring same in the presence of a stabilizing amount of at least one strong protonic acid and/or a Lewis acid.... | 04/18/1989 |
| 4599462 | Methods for making solid solutions from normally immiscible components and for modifying the surface structure of solid materials Novel composites or solid solutions made from heretofore immiscible chemical components and methods for making such composites or solid solutions. A wall of a deposition cell is cooled to a temperature within the range of about -273° C. to about -20° C.... | 07/08/1986 |
| 4469900 | Complex formed for separating chlorinated phenols A process is disclosed for separating closely-boiling chlorinated phenolic compounds from other chlorinated and unchlorinated phenolics by treating a mixture of the phenolics with a metal halide salt. The metal halide salt preferentially forms a complex w... | 09/04/1984 |
| 4394526 | Para-cresol halide salt complex useful for separating para-cresol from meta-cresol Para-cresol is separated from a mixture comprising meta-cresol and various other methylated and ethylated phenols by preferentially complexing the para-cresol with one or more anhydrous or dehydrated inorganic salts selected from the group consisting of c... | 07/19/1983 |
| 4359590 | Titanate ester-stabilized bisphenols A bisphenol is stabilized against thermal decomposition in the molten state in a non-reactive environment by incorporation in the bisphenol of a small stabilizing amount of a quaternary ester of ortho titanic acid and an aliphatic alcohol.... | 11/16/1982 |
| 4316996 | Discoloration prevention of phenolic antioxidants Detrimental color change of phenolic antioxidants during production, storage and use in rubbers is inhibited by adding during the synthesis of the phenolic antioxidant a disubstituted hydroxylamine to the catalyst neutralization solution and a substituted... | 02/23/1982 |
| 4289587 | Stabilization of chlorinated phenols Chlorinated phenols, e.g. pentachlorophenol, are stabilized against degradation, including degradation to chlorinated dibenzo-p-dioxins, caused by heat and other adverse conditions, by combining with them stabilizing amounts of at least one stabilizer sel... | 09/15/1981 |
| 4288296 | Decomposition inhibitors for high temperature storage and distillation of chlorinated phenols The decomposition of chlorinated phenols, especially pentachlorophenol, during exposure to high temperatures (e.g., storage and distillation) is markedly reduced by incorporating into the molten chlorinated phenol at least about 0.25 percent by weight of ... | 09/08/1981 |
| 4160110 | Method for stabilizing bisphenols under melt or distillation conditions A process is provided for improving the stability of bisphenols under melt or distillation conditions by employing an aromatic anhydride such as phthalic anhydride as a stabilizing agent. A reduction is effected in the rate of formation of phenol and othe... | 07/03/1979 |
| 3947501 | Process for treatment of reaction mixtures by hydrogenation The acidic catalyst characteristics of a reaction mixture resulting from a catalytic epoxidation are reduced whereby dehydration of by-product alcohol is suppressed during subsequent work-up procedures. This reduction is effected by catalytic hydrogenatio... | 03/30/1976 |
| 3947500 | Process for treating reaction mixtures by chemical reduction The present invention is concerned with the treatment of reaction mixtures which result from the metal catalyzed epoxidation of olefinically unsaturated compounds to the corresponding oxirane compound using organic hydroperoxides.... | 03/30/1976 |
| 3931341 | Treated pentachlorophenol Free flowing particulate pentachlorophenol having little or no tendency to bloom is obtained by incorporating about 0.5-10 percent by weight of benzyl alcohol. Prills made from molten pentachlorophenol containing the benzyl alcohol are a preferred form.... | 01/06/1976 |
