专利号:US-6540970-B1 优先权日:1999-11-18 标题:Method for the synthesis of molecular sieves 发明人:STROHMAIER KARL G; VAUGHAN DAVID E W 权利人:EXXON MOBIL CHEM PATENTS INC 摘要:The present invention provides a method for the synthesis of MeAPO molecular sieves which includes the following steps: providing a source of alumina, a source of phosphorus, water, and a template suitable for forming a MeAPO molecular sieve; providing a source of metal (Me) including metal particles, the metal particles measuring, in their largest dimension, equal to or less than five nanometers; providing a water soluble organic solvent capable of solubilizing the source of metal; forming a synthesis mixture from the source of alumina, the source of phosphorus, the water, the template, the source of metal, and the solvent; and forming a MeAPO molecular sieve from the synthesis mixture.
专利号:US-4824532-A 优先权日:1987-01-09 标题:Process for the electrochemical synthesis of carboxylic acids 发明人:MOINGEON MARIE-ODILE; CHAUSSARD JACQUES; TROUPEL MICHEL; SABOUREAU CHRISTOPHE 权利人:AEROSPATIALE 摘要:The invention relates to a process for the electrosynthesis of carboxylic acids of general formula R-COOH in which R is an organic radical by the electrochemical reduction, in the presence of carbon dioxide, of organic compounds corresponding to the general formula R-Y in which R is the above-mentioned organic radical and Y is a hetero atom-containing radical, the hetero atom of the radical Y, chosen from the group consisting of oxygen, nitrogen, sulphur andphosphorus, being directly linked to a carbon atom of the radical R by a single covalent linkage. When the hetero atom is nitrogen or phosphorus, the radical Y is an ammonium or phosphonium radical respectively. The anode, which is consumed during the electrosynthesis, is made of a metal chosen from the group consisting of reducing metals and their alloys, preferably made of magnesium, aluminium or zinc. This process without catalyst is very simple to perform and enables a cell with a single compartment to be employed. The carboxylic acids are commonly employed in the chemical industry, especially as intermediates for the synthesis of pharmaceutical products or of products used in plant protection.
专利号:US-6479599-B1 优先权日:1997-04-04 标题:Catalyst system for high yield synthesis of polyolefins 发明人:PEIL KEVIN P; WILSON DAVID R 权利人:BP CHEM INT LTD 摘要:This invention relates to a supported metallocene catalyst system for the high yield synthesis of polyolefins, to methods of preparation of the catalyst system, to polymerization processes which use the catalyst system and to polyolefin polymers produced by the polymerization processes.
专利号:US-5880295-A 优先权日:1994-02-16 标 题 :Process for the preparation of diamine intermediates useful in the synthesis of HIV protease inhibitors 发明人:KALTENBACH III ROBERT FRANK 权利人:DU PONT PHARM CO 摘要:The present invention provides a process for the preparation of compounds of formula (V) below, and analogs thereof, which are useful as intermediates for the synthesis of HIV protease inhibitors, including cyclic ureas. ##STR1##
专利号:US-3996255-A 优先权日:1974-04-24 标题 :Total synthesis of 11-deoxy-15-substituted prostaglandins 发明人:STRIKE DONALD P; KAO WENLING 权利人:AMERICAN HOME PROD 摘要:Processes for the total synthesis of dl-11-deoxy-15-substituted prostaglandins, novel intermediates therefore, certain novel final products, as well as optical resolutions of the final products are disclosed.
专利号:US-6987186-B2 优先权日:2003-01-28 标 题 :Synthesis of small particle size quinacridone of beta crystal phase 发明人:COLE DAMIEN THURBER; JEGANATHAN SURULIAPPA GOWDER; HE YINGXIA 权利人:CIBA SC HOLDING AG 摘要:The present invention relates to a process for the synthesis of beta-quinacridone by oxidation in the presence of selected additives that promote the formation of the desired crystal phase and particle size.
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