Class / Patent application number | Description | Number of patent applications / Date published |
588319000 | By reduction, e.g., hydrogenation (EPO/JPO) | 12 |
20090177025 | Mercury Contamination Extraction - Mercury is removed from contaminated waste by firstly applying a sulfur reagent to the waste. Mercury in the waste is then permitted to migrate to the reagent and is stabilized in a mercury sulfide compound. The stable compound may then be removed from the waste which itself remains in situ following mercury removal therefrom. | 07-09-2009 |
20090221865 | METHOD AND APPARATUS FOR INJECTING ENRICHED STEAM - A method of sequestering CO | 09-03-2009 |
20090326313 | Composition for the Alkylation and a Method For Detoxifying a Harmful Compound by Using The Composition - It is an object of the present invention to provide a beneficial composition in order to detoxify the harmful compound containing arsenic etc. effectively and systematically and a method for detoxifying a harmful compound by using the composition. The composition for the alkylation according to the present invention is characterized in that the composition contains a cobalt complex. The method of detoxifying the harmful compound according to the present invention is characterized in that a harmful compound containing at least one element selected from the groups comprising arsenic, antimony and selenium is detoxified by the alkylation of the harmful compound, in the presence of the composition according to the present invention. | 12-31-2009 |
20100069702 | METHOD OF CHEMICAL TREATMENT OF SOILS CONTAINING HAZARDOUS SUBSTANCES SUSCEPTIBLE TO NUCLEOPHILLIC ATTACK - A method for remediating hazardous materials susceptible to nucleophillic attack is disclosed wherein sodium hydroxide is applied to a treatment zone in situ for raising the pH of the treatment zone to at least about 12.5 so that alkaline hydrolysis effectively breaks down the hazardous substance by replacing a leaving group with a nucleophile. The method is well suited for in situ use in the vadose zone to treat contaminated soil and groundwater. | 03-18-2010 |
20100087697 | Methods of Treatment of Chromite Ore Processing Residue - Methods to reduce hexavalent chromium (Cr(VI)) in chromite processing wastes include one or more of the following steps: contacting the chromite processing wastes with an oxygen scavenger or chemical reducer; permitting the chromite processing wastes to react with the oxygen scavenger or chemical reducer, contacting the chromite processing wastes with ferrous ion; contacting the chromite processing wastes with sulfide ion; and, contacting the chromite processing wastes with ferrous sulfide. | 04-08-2010 |
20100222626 | METHOD OF TREATING A BIOMASS MATERIAL - The present inventions are made from a viewpoint of such problems of the prior art, it is an object of the present invention to provide a good biomass. | 09-02-2010 |
20100228073 | METHOD OF DETOXIFYING A METHYL COMPOUND - It is an object of the present invention to provide a method of detoxifying a methyl compound comprising arsenic etc., effectively and systematically. The method of detoxifying a methyl compound according to the present invention is characterized in that an organic halogenated compound is reacted with a methyl compound comprising at least one element selected from the groups comprising arsenic, antimony and selenium to convert the methyl compound into more harmless substances. Furthermore, in a preferred embodiment of the method of detoxifying a methyl compound according to the present invention, the method is characterized in that the element is arsenic. | 09-09-2010 |
20100268011 | PREPARATION AND CONDITIONING OF SEDIMENTARY MATERIALS - A flexible process for the preparation and conditioning of sedimentary materials. The degree of decontamination of these dredged materials is enhanced by the use of chemical indicators. Based upon the level of contamination contained within this material the process is used to isolate the specific contamination and utilize a variable process to decontaminate these compounds. Not all of the compounds contained within the dredged sediment is treated the same way. The process is designed to isolate the composite of materials and treat each particle with a different process based upon its classification. Post treatment, this material may be combined and dewatered for a suitable use. | 10-21-2010 |
20100286463 | Process and Apparatus for the Pyrolytic Conversion of Organic Halides to Hydrogen Halides - A process for the conversion of organic halide compounds, including refrigerant fluids, is provided. The process includes contacting the organic halide compound with an additive hydrogen donor at a reaction temperature, to produce a product stream that includes a hydrogen halide and carbon oxide. | 11-11-2010 |
20100286464 | Methods of Treatment of Chromite Ore Processing Residue - Methods to reduce hexavalent chromium (Cr(VI)) in chromite processing wastes include one or more of the following steps: contacting the chromite processing wastes with an oxygen scavenger or chemical reducer; permitting the chromite processing wastes to react with the oxygen scavenger or chemical reducer; contacting the chromite processing wastes with ferrous ion; contacting the chromite processing wastes with sulfide ion; and, contacting the chromite processing wastes with ferrous sulfide. | 11-11-2010 |
20130123564 | Method and System for Stabilizing Volatile Radionuclides During Denitration at High Temperatures - Providing a method for eliminating NO | 05-16-2013 |
20150051433 | PROCESS FOR TREATING HALIDE CONTAMINATED WASTE - A process for treating halide contaminated waste includes bringing the contaminated waste into contact with a reductone in an aqueous solution to obtain a mixture having a pH value, and adjusting the pH value to permit dissociation of two hydrogen ions from an enediol group of the reductone and to permit subsequent reaction of the reductone with an electrophilic site of halide contained in the contaminated waste. Halide can thus be removed. | 02-19-2015 |