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"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 7300586 | pH stable activated carbon An activated carbon composition is disclosed, which includes an activated carbon and a carboxylic acid containing compound. The activated carbon composition is prepared by immersing an activated carbon in an aqueous solution of a carboxylic acid containing compound.... | 11/27/2007 |
| 7288504 | Method for producing spherical activation carbon Disclosure is made of a specific process for producing activated carbon in spherical form, starting with organic polymer spherules based on styrene and divinylbenzene, wherein said polymer spherules contain chemical groups leading to the formation of free radicals a... | 10/30/2007 |
| 7256157 | Carbon material for electric double layer capacitor electrodes A carbon material for electric double layer capacitor electrodes which is obtained by a heat treatment and an activation treatment of a material pitch having a softening point in a range of 150 to 350° C., a ratio of amounts by atom of hydrogen to carbon (H/C) in a... | 08/14/2007 |
| 7119047 | Modified activated carbon for capacitor electrodes and method of fabrication thereof A novel electrode and method of making the same. The electrode includes activated carbon that has been modified by treatment with an alkali solution and an acid, such as nitric acid, and then washed and dried. The carbon may then be annealed. The method of modifying... | 10/10/2006 |
| 7033650 | Method of producing a nanotube layer on a substrate In a method of producing a nanotube layer on a substrate by using a CVD process, the substrate is placed in a reaction chamber, which is flushed with a carbon-containing gas. Subsequently, the substrate is heated by an induction process to a temperature at which car... | 04/25/2006 |
| 7014681 | Flexible and porous membranes and adsorbents, and method for the production thereof The invention relates to a method for producing flexible and porous adsorbents based on oxidic and/or non-oxidic ceramic material containing carbon. The inventive method is characterized by the following steps: (a) producing a flat base matrix whose constituents are... | 03/21/2006 |
| 6939394 | Gas storage and dispensing system with monolithic carbon adsorbent A fluid storage and dispensing apparatus, including a fluid storage and dispensing vessel having an interior volume, in which the interior volume contains a physical adsorbent sorptively retaining a fluid thereon and from which the fluid is desorbable for dispensing... | 09/06/2005 |
| 6589904 | Activated carbon and method for producing it The present invention provides an activated carbon produced by a process, which includes: activating a carbonaceous material, to obtain an activated carbonaceous material; and contacting the activated carbonaceous material with an acid. Another embodiment of t... | 07/08/2003 |
| 6361666 | Gas diffusion electron, process for producing an electrode an carbonizable composite A gas diffusion electrode made of carbon, a process for producing an electrode and a carbonizable composite are provided. Thin, flat, porous gas diffusion electrodes made of carbon, which have a smooth surface and in which the porosity can be regulated at... | 03/26/2002 |
| 6277780 | Preparation of phosphorus-treated activated carbon composition Disclosed is a method for preparing a phosphorus treated activated carbon composition suitable for use as a catalyst support, a catalyst, and an adsorbent. The invention method involves treating (e., mixing or impregnating) an activated carbon material ha... | 08/21/2001 |
| 6238641 | Reduced catalytic carbonaceous char and process for reducing the inherent carbon catalytic reactivity of carbonaceous chars A process is provided for reducing the inherent carbon catalytic reactivity of carbonaceous chars. In this process a carbonaceous char is contacted first with a Bronsted acid. The acid-treated char is then heated to temperatures greater than 750° C. By t... | 05/29/2001 |
| 6225256 | Activated carbon feedstock An activated carbon and method of producing and using same. Pecan hulls are fractured to produce a particle size of less than a predetermined size (e.g., 75 microns), chemically activated in an acid solution, carbonized, and washed.... | 05/01/2001 |
| 6140493 | Method of synthesizing diverse collections of oligomers A general stochastic method for synthesizing random oligomers can be used to synthesize compounds to screen for desired properties. The use of identification tags on the oligomers facilitates identification of oligomers with desired properties.... | 10/31/2000 |
| 6060424 | High energy density carbons for use in double layer energy storage devices The present invention relates to carbon and methods for preparing same. In particular, this invention relates to the preparation of novel carbons derived from lignocellulosic materials (particularly wood-based lignocellulosic materials) which are useful f... | 05/09/2000 |
| 6057262 | Activated carbon and process for making same A process is described for the manufacture of activated carbon in the form of a powder, as granules or as extrudates. The process includes treating a biomass feedstock, such as woods, coconut shells, fruit pits, peats, lignites and all ranks of coal with ... | 05/02/2000 |
| 6043183 | High power density carbons for use in double layer energy storage devices The present invention relates to carbon and methods for preparing same. In particular, this invention relates to the preparation of novel carbons derived from lignocellulosic materials (particularly wood-based lignocellulosic materials) which are useful f... | 03/28/2000 |
| 5977016 | Process for producing granulated activated carbon Granulated activated carbon is produced by an improved process which involves carbonizing pellets of a styrene-divinyl benzene copolymer matrix with concentrated sulfuric acid at temperatures up to at least 750° C., followed by activation at temperatures... | 11/02/1999 |
| 5965483 | Highly microporous carbons and process of manufacture A process for further chemical activation of activated carbon is disclosed comprising activation of an active carbon precursor material with a potassium hydroxide solution, pre-drying the blend to 5% to 15% moisture content, activating this blend at from ... | 10/12/1999 |
| 5925591 | Process for the production of hollow carbon fiber membranes A process for manufacturing a bundle of hollow carbon membranes comprising the steps of: (a) providing a bundle of hollow cellulose fibers; (b) removing substantially all the absorbed water from the said fibers; (c) heating the fibers to a range of temper... | 07/20/1999 |
| 5908652 | Method for modifying aroma-containing gas A method for modifying an aroma-containing gas comprising volatile components recovered from coffee, characterized by contacting the aroma-containing gas with molecule sieve carbon oxidized with a strong acid is disclosed. This method removes undesirable ... | 06/01/1999 |
| 5714433 | Activated carbon treated by carbon dioxide for the stabilization of treated water pH Treatment of a wet activated carbon with carbon dioxide or with carbon dioxide followed by air results in a carbon having a reduced contact pH. The activated carbon is characterized by a modified contact pH less than about 9.0 and typically between about ... | 02/03/1998 |
| 5710092 | Highly microporous carbon A highly microporous activated carbon is disclosed which is prepared by activation of an active carbon precursor material with a potassium hydroxide solution, pre-drying the blend to below 25% moisture content, activating this blend at from about 650° to... | 01/20/1998 |
| 5439864 | Shaped carbonaceous composition This invention relates to a shaped composition composed of a carbonaceous pyropolymer having recurring units containing at least carbon and hydrogen atoms. The composition is characterized by a crush strength of at least 6 kg and has a bimodal pore distri... | 08/08/1995 |
| 5416056 | Production of highly microporous activated carbon products A two-stage process for chemical activation of lignocellulose-derived carbon is disclosed comprising a first activation stage of blending a lignocellulose material with phosphoric acid, carbonizing the blend at from about 300° F. to about 1,100° F. (abo... | 05/16/1995 |
| 5403548 | Activated carbon adsorbent and applications thereof An alkali metal iodide and phosphoric acid are homogeneously supported on an activated carbon honeycomb, in respective amounts of 0.015 to 1.5 mg atoms as iodine and 1.4 to 7.0 mg equivalents per gram of activated carbon. The alkali metal iodide is potass... | 04/04/1995 |
| 5391534 | Process for producing activated charcoal A process for preparing activated charcoal having a high surface area is described, including a thermal treatment, in the presence of phosphoric acid, of regenerated humic acids.... | 02/21/1995 |
| 5276000 | Preparation for high activity, high density carbon Lignocellulosic carbonaceous material is activated to produce a high activity, high density gas-phase activated carbon under conditions which effectively alter the particle pore volume size distribution to optimize the carbon's mesoporosity. An improved p... | 01/04/1994 |
| 5250491 | Preparation of high activity, high density activated carbon Lignocellulosic carbonaceous material is activated to produce a high activity, high density gas-phase activated carbon under conditions which effectively alter the particle pore volume size distribution to optimize the carbon's mesoporosity. An agglomerat... | 10/05/1993 |
| 5212144 | Process for making chemically activated carbon An improved apparatus and method for the manufacture of activated carbon wherein a carbonaceous raw material impregnated with a chemical activating agent is treated by controlling the rate of heat transfer to the particles via indirect heating of the acti... | 05/18/1993 |
| 5206207 | Preparation for high activity high density carbon Carbonaceous material is activated to produce a high activity, high density gas-phase activated carbon under conditions which effectively alter the particle pore size distribution to optimize the carbon's mesoporosity. The carbon is particularly suited fo... | 04/27/1993 |
| 5204310 | High activity, high density activated carbon Lignocellulosic carbonaceous material is activated to produce a high activity, high density gas-phase activated carbon under conditions which effectively alter the particle pore size distribution to optimize the carbon's mesoporosity. Alternative processe... | 04/20/1993 |
| 5202302 | Preparation of activated carbons by impregnation with a boron compound and a phosphorus compound A process is provided for preparing fibrous or film type activated carbon including the steps of carbonizing a cellulosic material and activating the resulting carbon, each stop occurring at a temperature between 200° C. and 1100° C. in an oxidation-sup... | 04/13/1993 |
| 5179058 | Process for manufacturing a carbonaceous catalyst for the reduction of nitrogen oxides in exhaust gases A process is disclosed for treating carbonaceous catalyst with a gaseous halogen or a gaseous halogen compound to increase the catalytic activity and prolong the useful life of the catalyst. The treatment of the catalyst is conducted at temperatures above... | 01/12/1993 |
| 5166123 | Carbonaceous adsorbent for removal of pyrogen from water A carbonaceous adsorbent to be used for the removal of a pyrogen dissolved in water is disclosed. The adsorbent is obtained by carbonizing porous beads of a cross-linked polymer. This adsorbent is favorably used for the removal of endotoxin in the product... | 11/24/1992 |
| 5102855 | Process for producing high surface area activated carbon Process for producing activated carbon, preferably high surface area activated carbon, from inexpensive cellulosic precursors, such as paper, by pretreating the cellulosic precursor with an activating agent, such as phosphoric acid, followed by carbonizat... | 04/07/1992 |
| 5021391 | Carbonaceous adsorbent for removal of pyrogen and method of producing pure water using same A carbonaceous adsorbent to be used for the removal of a pyrogen dissolved in water is disclosed. The adsorbent is obtained by carbonizing porous beads of a cross-linked polymer. This adsorbent is favorably used for the removal of endotoxin in the product... | 06/04/1991 |
| 5021164 | Oxidized activated carbon and its use in removal of aromatic compounds from aqueous solutions Aromatic hydrocarbons are readily recovered from aqueous solutions by contacting the aqueous solution with an oxidized activated carbon having a low concentration of acidic oxides. The novel oxidized activated carbon is produced by contacting activated ca... | 06/04/1991 |
| 4957897 | Carbonaceous adsorbents from pyrolyzed polysulfonated polymers Carbonaceous adsorbent particles having multimodal pore size, including micropores and macropores, with improved adsorptive and separative properties, are prepared by partial pyrolysis of polysulfonated macroporous precursor resins, said resins being in t... | 09/18/1990 |
| 4943552 | Process for preparing a gas absorbent A novel process for preparing a gas absorbent, comprising the steps of adding sodium bromate to a mixture of sulfuric acid aqueous solution and active carbon, reacting them, separating solids from the reaction mixture, and drying said solids. The gas abso... | 07/24/1990 |
| 4742040 | Process for manufacturing a carbon molecular sieve A process for manufacturing a carbon molecular sieve having both increased gas adsorption capacity and selectivity, which entails: (a) adding coal tar, coal tar pitch, or a combination thereof to powdered coconut shell charcoal as a binder; (b) pelletizing the... | 05/03/1988 |
