Abstract: The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25° C. is not more than 3.7.

Abstract: The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25° C. is not more than 3.7.

Abstract: The invention relates to a method for treating a solution containing a saccharide comprising a heat treatment step of heating the saccharide solution at a temperature of 100° C. or higher and 180° C. or lower and a reduction step of reacting a reducing agent with the saccharide solution heated in the heat treatment step, a method for producing a treated saccharide solution using the treatment method, a treated saccharide solution obtained through treatment by the treatment method, a method for producing an organic compound comprising an organic-matter production step of obtaining an organic compound by causing a microorganism capable of producing organic matter to act on an organic raw material containing the treated saccharide solution and a method for culturing a microorganism using the treated saccharide solution as a carbon source.

Abstract: The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25° C. is not more than 3.7.

Abstract: The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25° C. is not more than 3.7.

Abstract: Provided are a method for treating a saccharide solution, which comprises subjecting a saccharide solution containing at least one selected from the group consisting of a carbonyl compound and an unsaturated alcohol other than a saccharide to hydrogenation reaction to hydrogenate the carbonyl compound and/or the unsaturated alcohol contained in the saccharide solution, a hydrogenated saccharide solution obtained by treating with the treatment method, and a method for producing an organic compound having a process of obtaining the organic compound by acting a microorganism having an organic material producing ability on an organic raw material containing the hydrogenated saccharide solution.

Abstract: The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25° C. is not more than 3.7.

Abstract: The invention relates to a method for treating a solution containing a saccharide comprising a heat treatment step of heating the saccharide solution at a temperature of 100° C. or higher and 180° C. or lower and a reduction step of reacting a reducing agent with the saccharide solution heated in the heat treatment step, a method for producing a treated saccharide solution using the treatment method, a treated saccharide solution obtained through treatment by the treatment method, a method for producing an organic compound comprising an organic-matter production step of obtaining an organic compound by causing a microorganism capable of producing organic matter to act on an organic raw material containing the treated saccharide solution and a method for culturing a microorganism using the treated saccharide solution as a carbon source.

Abstract: The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25° C. is not more than 3.7.

Abstract: The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25° C. is not more than 3.7.

Abstract: Provided are a method for treating a saccharide solution, which comprises subjecting a saccharide solution containing at least one selected from the group consisting of a carbonyl compound and an unsaturated alcohol other than a saccharide to hydrogenation reaction to hydrogenate the carbonyl compound and/or the unsaturated alcohol contained in the saccharide solution, a hydrogenated saccharide solution obtained by treating with the treatment method, and a method for producing an organic compound having a process of obtaining the organic compound by acting a microorganism having an organic material producing ability on an organic raw material containing the hydrogenated saccharide solution.

Abstract: The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25° C. is not more than 3.7.

Abstract: There is provided a catalyst for producing ethylene oxide from ethylene which is composed of at least silver (Ag), cesium (Cs), rhenium (Re) and a carrier, and can be improved, in particular, in selectivity. The present invention relates to a catalyst for producing ethylene oxide from ethylene, comprising at least silver (Ag), cesium (Cs), rhenium (Re) and a carrier, said catalyst being produced by optionally pretreating the carrier to support an alkali metal thereon and then supporting Ag, Cs and Re on the carrier, wherein the carrier has a specific surface area of 0.6 to 3.0 m2/g and a weight ratio of a silicon (Si) content to a sodium (Na) content of 2 to 50 in terms of SiO2/Na2O; a content of Re in the catalyst is 170 to 600 ppm per 1 m2/g of the specific surface area of the carrier on the basis of a weight of the carrier; and a molar ratio of Cs to Re in the catalyst is 0.3 to 19.

Abstract: There is provided a catalyst for producing ethylene oxide from ethylene which is composed of at least silver (Ag), cesium (Cs), rhenium (Re) and a carrier, and can be improved, in particular, in selectivity. The present invention relates to a catalyst for producing ethylene oxide from ethylene, comprising at least silver (Ag), cesium (Cs), rhenium (Re) and a carrier, said catalyst being produced by optionally pretreating the carrier to support an alkali metal thereon and then supporting Ag, Cs and Re on the carrier, wherein the carrier has a specific surface area of 0.6 to 3.0 m2/g and a weight ratio of a silicon (Si) content to a sodium (Na) content of 2 to 50 in terms of SiO2/Na2O; a content of Re in the catalyst is 170 to 600 ppm per 1 m2/g of the specific surface area of the carrier on the basis of a weight of the carrier; and a molar ratio of Cs to Re in the catalyst is 0.3 to 19.

Abstract: The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25° C. is not more than 3.7.

Abstract: The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25° C. is not more than 3.7.

Abstract: Disclosed is a catalyst for ethylene oxide production which is used for producing ethylene oxide from ethylene. This catalyst is composed of at least silver (Ag), caesium (Cs), rhenium (Re) and a carrier, and improved especially in selectivity. Specifically disclosed is a catalyst for ethylene oxide production, which is used for producing ethylene oxide from ethylene and composed of at least silver (Ag), caesium (Cs), rhenium (Re) and a carrier. If necessary, an alkali metal is loaded onto the carrier as a pretreatment, and then Ag, Cs and Re are loaded onto the carrier, thereby obtaining the catalyst. The carrier has a specific surface area of 0.6-3.0 m2/g, and a weight ratio between the silicon (Si) content and the sodium (Na) content in terms of SiO2/Na2O of 2-50, The Re content (based the carrier) is 170-600 ppm per 1 m2/g or the specific surface area of the carrier, and the molar ratio Cs/Re is 0.3-19.

Abstract: A battery charging circuit performs rapid charging without over-charging followed by supplementary charging to insure a fully charged rechargeable battery. The amount of supplementary charging is increased at low ambient temperatures and decreased at high temperatures. A primary charging circuit means for rapid charging and a supplementary charging circuit means for supplementary charging are provided. A temperature sensing means measures ambient temperature during rapid charging to establish the amount of supplementary charging required.

Abstract: The present invention is directed to a metal/hydrogen alkaline storage battery, which comprises a positive electrode of a metal oxide, a negative electrode of a hydrogen-storage alloy, and a separator impregnated with an alkaline electrolyte and placed between the positive and negative electrodes. The electrodes and separator are housed within a sealed type battery casing. The casing has a device for maintaining the pressure in the battery in a selected range of from an equilibrium pressure required for absorbing hydrogen by the negative electrode to about 20 kg/cm.sup.2.

Abstract: The present invention discloses a preservation device for lead storage battery comprising: a lead storage battery including at least one negative plate, at least one positive plate, at least one separator between said negative and positive plates, an electrolyte holdingly impregnated by said negative & positive plates and said separator and limited in amount such that substantially there is no electrolyte liberated from said negative & positive plates and said separator, and external terminals having one ends respectively connected to said negative and positive plates and the other ends exposed to the outside of the lead storage battery vessel; and an impedance means connected between said external terminals of said lead storage battery during its preservation.