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| Number | Title | Issue Date |
| 7374734 | Absorbing agent and method for eliminating acid gases from fluids The disclosure relates to an absorbent for removing acid gases from fluids. The absorbent contains at least one tertiary amine, an amine which is selected from hydroxyethylpiperazine, bis(hydroxyethylpiperazine) or a mixture of these and piperazine. The absorbent ma... | 05/20/2008 |
| 6652775 | Adsorbent compositions A water vapor adsorption and water retaining composition containing particulate calcium chloride and particulate vermiculite in a flexible container having a side of spun-bonded polyethylene heat sealed to a side of extrusion coated polyethylene on polyes... | 11/25/2003 |
| 6649086 | Adsorbent compositions A water vapor adsorption and water retaining composition containing particulate calcium chloride and particulate vermiculite in a flexible container having a side of spun-bonded polyethylene heat sealed to a side of extrusion coated polyethylene on polyes... | 11/18/2003 |
| 6602443 | Composition and method for acid gas treatment An improved composition and method for acid gas treatment, comprising an effective amount of tetraethylene glycol dimethyl ether, optionally in combination with other alkyl ethers of alkylene glycols. Utilization of a predominance of tetraethylene glycol ... | 08/05/2003 |
| 6592779 | Composition and method for acid gas treatment An improved composition and method for acid gas treatment, comprising an effective amount of tetraethylene glycol dimethyl ether, optionally in combination with other alkyl ethers of alkylene glycols. Utilization of a predominance of tetraethylene glycol ... | 07/15/2003 |
| 6540937 | Adsorbent compositions A water vapor adsorption and water retaining composition containing particulate calcium chloride and particulate vermiculite in a flexible container having a side of spun-bonded polyethylene heat sealed to a side of extrusion coated polyethylene on polyes... | 04/01/2003 |
| 6540936 | Aldehyde gas absorbent and process for absorbing aldehyde gas An aldehyde gas absorbent comprising: a porous silicon dioxide having a specific surface area of from 400 to 900 m2 /g and an average pore size of from 0.1 to 10 nm; and a polyamine compound carried on the porous silicon dioxide in an amount of... | 04/01/2003 |
| 6432374 | Solid chloride absorbent The invention has an object to provide a solid chloride absorbent which can efficiently absorb inorganic chlorides such as hydrogen chloride flowing out from a process in which a heavy naphtha and the like are treated and inorganic chloride derived from c... | 08/13/2002 |
| 6380130 | Product capable of transforming a toxic, corrosive or environmentally harmful liquid product into a harmless or non-aggressive residue The invention relates to a product capable of transforming a toxic, corrosive or environmentally harmful liquid product into a harmless or non-aggressive residue comprising: at least one amphoteric selected in such a way that: the pH of the residue obtained is... | 04/30/2002 |
| 6342169 | Safe storage and transportation of sulfur dioxide The invention relates to a method of confining sulfur dioxide for storage or transportation under safe conditions. The method of the invention comprises the steps of (a) contacting a sulfur dioxide-containing gas stream with an absorbing medium comprising... | 01/29/2002 |
| 6337059 | Absorbent compositions for the removal of acid gases from gas streams An absorbent composition for the removal of acid gases, such as CO2, H2 S and COS, from gas streams is provided. The absorbent composition comprises an aqueous solution comprising: 1) greater than 1 mole piperazine per liter of aqueo... | 01/08/2002 |
| 6267939 | Absorbent composition for purifying gases which contain acidic components An absorbent composition for purifying gases which contain acidic components. The composition contains at least one compound of formula (I), wherein n is 2-6, p is 1-3, the R1 groups may be the same or different and represent hydrogen or C... | 07/31/2001 |
| 6207121 | Composition and process for removal of acid gases Alkanolamines of the formula R--NHCH2 CH(OH)CH2 CH3 (I) or mixtures thereof wherein R is H, --CH2 CH(OH)CH2 CH3, an alkyl group having from 1 to 6 carbon atoms, an aryl group having from 6 to 1... | 03/27/2001 |
| 6165432 | Composition and process for removal of acid gases Aqueous compositions comprising a mixture of a tertiary alkanolamine and a primary alkanolamine of the formula R--CH(NH2)--CH2 --OH (I) or mixtures thereof wherein R is H, or an alkyl group having from 1 to 8 a... | 12/26/2000 |
| 6103252 | Method for reducing deflagration of azinphos-methyl The present invention relates to a stable azinphos-methyl wettable powder formulation. The composition of the present invention contains an insecticide powder formulation and a magnesium sulfate heptahydrate. The magnesium sulfate heptahydrate is added to... | 08/15/2000 |
| 6080333 | Composition to detoxify and to convert glutaraldehyde in gazeous A chemical composition is disclosed herein for performing a neutralization of glutaraldehyde vapors, control of incidental releases, detoxification and disposal of spent or unused aqueous and/or non-aqueous glutaraldehyde solutions, and feasible conversio... | 06/27/2000 |
| 6080282 | Electrolytic solution for use as gel electrolyte and process for making the same The present invention is directed to both an electrolyte solution for use as a gel electrolyte in an electrolytic cell, and a process for making both the electrolyte gel and the electrolytic cell. The electrolyte solution comprises a polymerizable electro... | 06/27/2000 |
| 6051161 | Method for the removal of carbon dioxide present in gases and absorbent This invention provides a method for the removal of carbon dioxide present in gases which comprises bringing a CO2 -containing gas into contact with an aqueous solution containing at least one amine compound of the general formula ##STR1##... | 04/18/2000 |
| 5980845 | Regeneration of hydrogen sulfide scavengers The present invention generally provides sulfide scavenger solutions and processes that have high sulfide scavenging capacity, provide a reduction or elimination of solids formation and avoid the use of chemicals that pose environmental concerns. The inve... | 11/09/1999 |
| 5837159 | Chemical detoxifier for embalming solutions A chemical composition is disclosed herein for performing a complex neutralization and fixation of embalming fluids, providing a method for the rapid neutralization of formaldehyde vapors, the control of incidental releases, detoxification and disposal of... | 11/17/1998 |
| 5785888 | Method for removal of sulfur dioxide A method for removing sulfur dioxide from gas streams, comprising contacting the gas stream with the aqueous absorption liquid, transferring the liquid to another location, then mildly heating the liquid to recover the sulfur dioxide. This absorption liqu... | 07/28/1998 |
| 5705090 | Absorption of mercaptans Absorption solvents for removing mercaptans from gas streams are disclosed. The absorption solvents comprise an alkylether of a polyalkylene glycol, e.g., methoxytriglycol, and a secondary monoalkanolamine, e.g., N-methylethanolamine, as well as optionall... | 01/06/1998 |
| 5681503 | Flat sheet CO2 sorbent A technique for preparing a flat sheet, high capacity CO2 sorbent and sorbent assembly is disclosed. The sorbent, which is in the form of a sheet, can be a metal oxide/alkali metal carbonate regenerable sorbent, while the sorbent assembly is co... | 10/28/1997 |
| 5612276 | Adsorbents for removing low-concentration nitrogen oxides The invention provides first to fourth adsorbents for removing low-concention nitrogen oxides. The first adsorbent comprises a carrier of gamma-alumina, and ruthenium supported-thereon. The second adsorbent comprises a carrier of anatase-type titania, an... | 03/18/1997 |
| 5595954 | Method for making an HCL adsorbent An HCl adsorbent, and method of making and using the adsorbent, the adsorbent comprising an activated alumina promoted with an alkali metal in an amount such that if calculated as alkali metal oxide, the adsorbent contains at least about 5% by weight alka... | 01/21/1997 |
| 5520898 | Method for the preparation of highly reactive clay composites for the removal of sox from flue gas streams The use of base/clay composites materials as sorbents for the removal of SO2 and SO3 (SOx) from flue gas and other sulfur containing gas streams is described. The base is either an alkaline earth metal carbonate (eg. CaCO | 05/28/1996 |
| 5472638 | Corrosion inhibitor A corrosion inhibitor is disclosed which is produced by reacting an aqueous alkanolamine solution with an acid gas to form an amide and an alkanolamine salt, mixing aqueous alkanolamine with said amide and said alkanolamine salt in the absence of added in... | 12/05/1995 |
| 5462693 | Air purifying agent and a process for producing same An air purifying agent comprising a carrier which contains short pulp fiber, on which one or more chemical components selected from the group consisting of acids, alkalis, oxidizing agents, reducing agents and antimicrobial components are supported. Accor... | 10/31/1995 |
| 5439868 | Absorbents for removing low-concentration nitrogen oxides The invention provides first to fourth adsorbents for removing low-concentration nitrogen oxides. The first adsorbent comprises a carrier of gamma-alumina, and ruthenium supported thereon. The second adsorbent comprises a carrier of anatase-type titania, ... | 08/08/1995 |
| 5427994 | Lignosulfonate-modified calcium hydroxide for SO2 control during furnace injection A method is provided for preparing particulate calcium hydroxide/calcium lignosulfonate sorbent by contacting calcium oxide with water.... | 06/27/1995 |
| 5422330 | Sorbent compositions, uses, and methods of manufacture A dry, particulate sorbent composition containing an organic absorbent, a combustible adsorbent, a water swellable polymer and a water soluble polymer is used to soak up and contain flammable liquids and to render the resulting product fire-safe by mistin... | 06/06/1995 |
| 5376614 | Regenerable supported amine-polyol sorbent The supported amine-polyol sorbent of the present invention comprises about 1 wt % to about 25 wt % amine, about 1 wt % to about 25 wt % polyol, with the balance being support. This sorbent is capable of absorbing and desorbing carbon dioxide at relativel... | 12/27/1994 |
| 5352425 | Sorbent for treatment of effluent gas stream A process for producing a sulfur sorbent composition in a mixer having a mixer paddle an energy supply is disclosed which includes hydrating an alkaline earth metal oxide in an aqueous solution containing a promoting additive selected from a group consist... | 10/04/1994 |
| 5342543 | Neutralizing absorbent for acids and bases A neutralizing absorbent for acids and bases comprising a superabsorbent powder, a neutralizing chemical, and, optionally, a pH indicator. The absorbent comes in solid form for ease of application. A method for treating acid and base spills is also provid... | 08/30/1994 |
| 5334564 | Method for the preparation of highly reactive clay composites for the removal of SOx from flue gas streams The use of base/clay composites materials as sorbents for the removal of SO2 and SO3 (SOx) from flue gas and other sulfur containing gas streams is described. The base is either an alkaline earth metal carbonate (eg. CaCO | 08/02/1994 |
| 5322701 | Carbon dioxide absorbent packet and process An absorbent packet for absorbing carbon dioxide at a rapid rate from a closed container, such as a package or can containing coffee and water vapor, including a porous envelope containing calcium oxide and a hydrating agent, such as silica gel with water... | 06/21/1994 |
| 5316998 | HCl adsorbent and method for making and using same An HCl adsorbent, and method of making and using the adsorbent, the adsorbent comprising an activated alumina promoted with an alkali metal in an amount such that if calculated as alkali metal oxide, the adsorbent contains at least about 5% by weight alka... | 05/31/1994 |
| 5308534 | Alkaline-earth based sorbent for removing effluent from a gas stream The present invention relates to an improved sorbent for use in removing effluents such as sulfur dioxide from combustion gas streams. The sorbent comprises a hydroxide formed from an alkaline-earth based material such as lime and having incorporated ther... | 05/03/1994 |
| 5282999 | Sorbent for treatment of effluent gas stream A process for producing a sulfur sorbent composition in a mixer having a mixer paddle an energy supply is disclosed which includes hydrating an alkaline earth metal oxide in an aqueous solution containing a promoting additive selected from a group consist... | 02/01/1994 |
| 5277837 | Method and composition for treating flue or exhaust gases utilizing modified calcium hydroxide A process is shown for treating flue or exhaust gases in order to remove sulfur oxides and hydrochloric acids in which calcium hydroxide having a surface area of at least 25 m2 /g and a moisture content lower than 50% is injected in the gases t... | 01/11/1994 |
