Showing papers by "Shinji Murai published in 2010"

Phosphorus-adsorbing material and phosphorus recovery system

Abstract: Disclosed is a phosphorus-adsorbing material which comprises a polymer base material modified by either a primary amine and/or a secondary amine and a metal supported on the polymer base material. Also disclosed is a phosphorus recovery system utilizing the phosphorus-adsorbing material.

Water purification material, water purification method, phosphate fertilizer precursor, and method for manufacturing a phosphate fertilizer precursor

Abstract: There is provided a water purification material including: a composite metal hydroxide exhibiting a layered structure and including iron ions, calcium ions, and at least one of nitrogen ions and sulfur ions; and at least one of calcium hydroxide and ferric hydroxide, in which a main peak intensity due to at least one of the calcium hydroxide and the ferric hydroxide measured by x-ray crystal structure analysis is equal to or less than half a main peak intensity due to the layered structure of the composite metal hydroxide.

Ru3(CO)12-Catalyzed Reaction of Pyridylbenzenes with Carbon Monoxide and Olefins. Carbonylation at a C—H Bond in the Benzene Ring.

Abstract: A ruthenium-catalyzed carbonylation at a C−H bond in a benzene ring is described. The reaction of pyridylbenzenes with CO (20 atm) and ethylene in toluene at 160 °C in the presence of a catalytic amount of Ru3(CO)12 results in propionylation at an ortho C−H bond in the benzene ring. Carbonylation does not occur at the pyridine ring, although this is necessary as a directing group to promote the reaction. Olefins such as trimethylvinylsilane and tert-butylethylene in place of ethylene can also be used in this reaction, however 1-hexene, cyclohexene, allyltrimethylsilane, styrene, methyl methacrylate, vinyl acetate, triethoxyvinylsilane, and isopropenyltrimethylsilane do not afford the coupling products. Transition metal complexes, other than ruthenium carbonyl, examined thus far, do not show catalytic activity. In the reaction of meta-substituted pyridylbenzenes, such as those having Me, OMe, CF3, and COOMe group at the meta position in the benzene ring, carbonylation takes place at the less hindered C−H b...

New Protocol for the Siteselective Alkylation and Vinylation of Aromatic Compounds. Catalyst‐Specific Reactions.

Abstract: Catalyst-specific C-H/olefin as well as C-H/acetylene coupling has been accomplished for aromatics which contain both keto and imino substituents by simply changing the catalyst. By using Ru(H)2(CO...

Water purifying material, water purifying method, phosphatic fertilizer precursor, and method of manufacturing phosphatic fertilizer precursor

Abstract: PROBLEM TO BE SOLVED: To efficiently recover phosphorus which is contained in wastewater such as sewerage or the like in large quantity and of which the exhaustion as resources is indicated and to reutilize phosphorus as resources at low cost. SOLUTION: This water purifying material contains a composite metal hydroxide, which contains at least one of iron ions and calcium ions and at least one of nitrogen ions and sulfur ions and shows a lamellar structure, and at least one of calcium hydroxide and iron hydroxide and is characterized in that the intensity of a main peak caused by at least one of calcium hydroxide and iron hydroxide measured by the analysis of an X-ray crystal structure is 1/2 or below one caused by the lamellar structure of the composite metal hydroxide. COPYRIGHT: (C)2011,JPO&INPIT

Recovery of organic polymer involves mixing adsorbent with waste liquid, making adsorbent adsorb slightly soluble organic polymer in waste liquid, obtaining solution which contains soluble organic polymer, and recycling solution

Abstract: A recovery method of organic polymer involves mixing adsorbent which consists of magnetic body core particle and adsorption layer which covers magnetic body core particle with waste liquid which contains soluble first organic polymer and slightly soluble second organic polymer in water, making adsorbent adsorb second organic polymer in waste liquid, recovering second organic polymer according to magnetic separation with adsorbent out of waste liquid, obtaining solution which contains first organic polymer, and recycling solution.