- Email: [email protected]
4367160 Oxidants for gasifying carbon-containing materials
...
New Patents
VI11
A process useful for the production of a carbon black useful as an ingredient in dry cell battery compositions is disclosed which comprises heating a carbon black feedstock having a dibutylphalate absorption (DBP) ranging from 200 to 250 cc/100 g, nitrogen surface area ranging from about 30 to about 60 m2/g, an average stacking height (Lc) of ordered graphitic layer segments ranging from about 1.1 to about 1.5 nm, and a wide aggregate size distribution with a range of measured aggregate volume from about 5*104 to about 1*109 nm3, a geometric mean aggregate volume (Log Vg, nm3) of about 6.2 to about 7.5, and geometric standard deviation (for Log Vg, nm3) of about 0.7 to about 1.0. This feedstock is heated to a temperature ranging from 1400 degrees C. to 2400 degrees C. under an inert atmosphere, thereby producing a carbon black having a DBP ranging from about 210 to about 270 cc/100 g, essentially the same nitrogen surface area, essentially the same aggregate volume and standard deviation, and an Lc ranging from about 1.6 to about 3.7 nm.
4367160 OXIDANTS FOR GASIFYING CARBON-CONTAINING MATERIALS Charles Rooks; George Davis; James C Hill; Talmage D McMinn assigned to Monsanto Company This invention relates to the treatment of carbon-containing materials. In one aspect this invention relates to the treatment of carbon-containing materials, such as coai, coke and hydrocarbons to produce oxides of carbon therefrom. In still another aspect, this invention relates to a process for the production of high purity synthesis gas, a mixture of hydrogen and carbon monoxide, from carboncontaining materials. More specifically, this invention relates to inorganic metaloxygen containing materials useful as the oxidant, oxygen carrier and supplier, and heat transfer agent for the endothermic
oxidative gasification of carbon-containing materials. 4367159 METHOD FOR UNIFORMLY DISTRIBUTING CARBON FLAKES IN A POSITIVE ELECTRODE, THE ELECTRODE MADE THEREBY AND COMPOSITIONS Franklin C Mrazek; John A Smaga; James Battles assigned to The United States of America as represented by the United States Department of Energy A positive electrode for a secondary electrochemical cell wherein an electrically conductive current collector is in electricat contact with a particulate mixture of gray cast iron and an alkali metal sulfide and an electrolyte including alkali metal halides or alkaline earth metal halides. Also present may be a transition metal sulfide and graphite flakes from the conversin of gray cast iron to iron sulfide, Also disclosed is a method of distributing carbon flakes in a cell wherein there is formed an electrochemical cell of a positive etectrode structure of the type described and a suitable electrolyte and a second electrode containing a material capable of alloying with alkali metal ions. The cell is connected to a source of electrical potential to electrochemicalIy convert gray cast iron to an iron sulfide and uniformly to distribute carbon flakes formerly in the gray cast iron throughout the positive electrode while forming an alkali metal alloy in the negative electrode. Also disclosed are compositions useful in preparing positive electrodes.
4366191 METHOD OF INCREASING THE STRENGTH OFCARBON AND GRAPHITE MEMBERS Guido Gistinger; Manfred Schmid; Biberbath, Federal Republic of Germany; assigned to Sigri Eiektrographit GmbH
New Patents
VI11
A process useful for the production of a carbon black useful as an ingredient in dry cell battery compositions is disclosed which comprises heating a carbon black feedstock having a dibutylphalate absorption (DBP) ranging from 200 to 250 cc/100 g, nitrogen surface area ranging from about 30 to about 60 m2/g, an average stacking height (Lc) of ordered graphitic layer segments ranging from about 1.1 to about 1.5 nm, and a wide aggregate size distribution with a range of measured aggregate volume from about 5*104 to about 1*109 nm3, a geometric mean aggregate volume (Log Vg, nm3) of about 6.2 to about 7.5, and geometric standard deviation (for Log Vg, nm3) of about 0.7 to about 1.0. This feedstock is heated to a temperature ranging from 1400 degrees C. to 2400 degrees C. under an inert atmosphere, thereby producing a carbon black having a DBP ranging from about 210 to about 270 cc/100 g, essentially the same nitrogen surface area, essentially the same aggregate volume and standard deviation, and an Lc ranging from about 1.6 to about 3.7 nm.
4367160 OXIDANTS FOR GASIFYING CARBON-CONTAINING MATERIALS Charles Rooks; George Davis; James C Hill; Talmage D McMinn assigned to Monsanto Company This invention relates to the treatment of carbon-containing materials. In one aspect this invention relates to the treatment of carbon-containing materials, such as coai, coke and hydrocarbons to produce oxides of carbon therefrom. In still another aspect, this invention relates to a process for the production of high purity synthesis gas, a mixture of hydrogen and carbon monoxide, from carboncontaining materials. More specifically, this invention relates to inorganic metaloxygen containing materials useful as the oxidant, oxygen carrier and supplier, and heat transfer agent for the endothermic
oxidative gasification of carbon-containing materials. 4367159 METHOD FOR UNIFORMLY DISTRIBUTING CARBON FLAKES IN A POSITIVE ELECTRODE, THE ELECTRODE MADE THEREBY AND COMPOSITIONS Franklin C Mrazek; John A Smaga; James Battles assigned to The United States of America as represented by the United States Department of Energy A positive electrode for a secondary electrochemical cell wherein an electrically conductive current collector is in electricat contact with a particulate mixture of gray cast iron and an alkali metal sulfide and an electrolyte including alkali metal halides or alkaline earth metal halides. Also present may be a transition metal sulfide and graphite flakes from the conversin of gray cast iron to iron sulfide, Also disclosed is a method of distributing carbon flakes in a cell wherein there is formed an electrochemical cell of a positive etectrode structure of the type described and a suitable electrolyte and a second electrode containing a material capable of alloying with alkali metal ions. The cell is connected to a source of electrical potential to electrochemicalIy convert gray cast iron to an iron sulfide and uniformly to distribute carbon flakes formerly in the gray cast iron throughout the positive electrode while forming an alkali metal alloy in the negative electrode. Also disclosed are compositions useful in preparing positive electrodes.
4366191 METHOD OF INCREASING THE STRENGTH OFCARBON AND GRAPHITE MEMBERS Guido Gistinger; Manfred Schmid; Biberbath, Federal Republic of Germany; assigned to Sigri Eiektrographit GmbH