CAS: 10361-37-2; Barium Chloride

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CAS号97158-14-0 Barium hexachlo... | CAS号7647-01-0 盐酸

二乙基二硫代氨基甲酸铵 反应生成氯化钡
参考文献:Yamasita,Xidehfumi;Kavamoto,Xiromi;Nisimura,Natsuya
标题:Yamasita,Xidehfumi;Kavamoto,Xiromi;Nisimura,Natsuya

专利信息

专利号:US-9512420-B2
优先权日:2013-10-16
标题:Use of N-acetylneuraminic acid aldolase in catalytic synthesis of N-acetylneuraminic acid
发明人：XIE JINGJING; JI WENYAN; YING HANJIE; Sun wujin; GUO TING; CHEN YONG; CHEN XIAOCHUN; WU JINGLAN
权利人:NANJING UNIV OF TECH; NANJING UNIVERSITY OF TECHNOLOGY
摘要:It discloses a use of N-acetylneuraminic acid aldolase with an amino acid sequence as shown in SEQ ID NO: 2 in catalytic synthesis of N-acetylneuraminic acid. The preparation of N-acetylneuraminic acid is to use the N-acetylneuraminic acid aldolase with the amino acid sequence as shown in SEQ ID NO: 2 as a catalyst, and N-acetylmannosamine and pyruvic acid as substrates.

专利号:US-2024075466-A1
优先权日:2021-04-09
标 题:One-Pot Synthesis of Transition Metal-Promoted Chabazites
发明人：VAN TENDELOO LEEN; SCHUETZE FRANK-WALTER; VERHEYEN ELKE JANE JUNE
权利人:UMICORE AG & CO KG
摘要:The invention provides methods for a one-pot synthesis of molecular sieves of the CHA-type. The method uses molecular and non-molecular sieves as sources of silicon and aluminum. A first OSDA is selected from tetraethylenepentamine (TEPA) and triethy-lenepentamine (TETA). The synthesis mixture comprises a first metal selected from copper, iron and zinc. Optionally, the synthesis mixture may furthermore comprise a second OSDA and/or a second metal selected from manganese, cesium, magnesium, calcium, strontium, barium, yttrium, titanium, zirconium, niobium, iron, zinc, silver, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium and mixtures thereof. The molecular sieves of the CHA-type obtainable by the method can be used as SCR-catalytically active substances for the removal of nitrogen oxides from exhaust gases of combustion engines.

专利号:WO-2025035571-A1
优先权日:2023-08-15
标 题 :Process for recycling waste residue from synthesis of hexachlorocyclotriphosphazene
发明人：LONG ZHI; WANG QIUWEI; LIN PING; YAN ZHIWEI; YE JUN
权利人:ZHEJIANG WANSHENG CO LTD
摘要:Provided is a process for recycling waste residue from the synthesis of hexachlorocyclotriphosphazene. The process comprises: reacting waste residue separated out after a synthesis reaction of hexachlorocyclotriphosphazene is finished with an ammonia source, the ammonia source being liquid ammonia, ammonia gas, ammonia water, ammonium bicarbonate, ammonium carbonate or a combination thereof; adjusting the pH value at an end point to 6-10; subjecting the obtained reaction product to solid-liquid separation so as to obtain a filtrate and a filter cake; subjecting the filter cake to post-treatment so as to obtain a recovered metal chloride catalyst; extracting the filtrate by using chlorobenzene, i.e. an extracting agent, so as to obtain an extract phase and a raffinate phase; rectifying the extract phase to obtain chlorobenzene and recovered pyridine or pyridine derivatives; and dehydrating the raffinate phase to obtain recovered ammonium chloride. By means of the process, high-degree recycling and regeneration of waste residue from the synthesis of hexachlorocyclotriphosphazene are achieved, the recovery rate of pyridine or pyridine derivatives from the waste residue can reach 95-99% or higher, the recovery rate of ammonium chloride and the metal chloride catalyst can reach 98% or higher, and no new waste residue is generated throughout the whole process.

专利号:US-3777009-A
优先权日:1971-08-05
标题:Method for direct melt synthesis of intermetallic compounds
发明人：MENASHI W; WENCKUS J; CASTONGUAY R
权利人:LITTLE INC A
摘要:METHOD AND APPARATUS FOR THE MELT SYNTHESIS OF GROUP III-V, MIXED III-V, II-VI, II-IV-VI AND II-III-V COMPOUNDS, AT LEAST ONE OF THE COMPONENTS FORMING THE COMPOUNDS BEING HIGHLY VOLATILE UNDER THE CONDITIONS OF SYNTHESIS. THE METAL COMPONENTS ARE PLACED IN A REACTION VESSEL WHICH IS SEALED BY A LIQUID SELANT IN COMBINATION WITH A MECHANICAL SEAL PRIOR TO HEATING THE REACTANTS TO A TEMPERATURE AT WHICH ONE OR MORE OF THE REACTANTS DEVELOPS AN APPRECIABLE VAPOR PRESSURE. THE ATMOSPHERE SURROUNDING THE REACTION VESSEL IS PRESSURIZED TO A PRESSURE ABOVE THE MAXIMUM VAPOR PRESSURE DEVELOPED BY THE REACTANTS DURING THE MELT SYNTHESIS WHICH IS ACCOMPLISHED BY HEATING THE REACTANTS. THE COMBINATION OF MECHANICAL AND LIQUID SEAL IS OF A CHARACTER TO PERMIT DIFFUSION BY HIGH-PRESSURE GAS THROUGH IT.

专利号:WO-2025035570-A1
优先权日:2023-08-15
标 题:Process for recovering pyridine or pyridine derivatives from waste residue produced during synthesis of hexachlorocyclotriphosphazene
发明人：LI XUFENG; LONG ZHI; WANG QIUWEI; Mou Yongchuan; JIN YITING
权利人:ZHEJIANG WANSHENG CO LTD
摘要:Disclosed in the present invention is a process for recovering pyridine or pyridine derivatives from waste residue produced during the synthesis of hexachlorocyclotriphosphazene. The process comprises: stirring and mixing waste residue separated after the completion of a hexachlorocyclotriphosphazene synthesis reaction with water at a mass ratio of 1:(0.5-2.5) to obtain a mixture, adding an alkali to the mixture to perform a neutralization reaction, controlling the reaction temperature to be 0-50ºC, and adjusting the pH value of an end point to 6-10, so as to obtain a neutralization solution; centrifuging or filtering the neutralization solution to separate out a filtrate, and extracting the filtrate by using chlorobenzene, so as to obtain an extract phase and a raffinate phase; and rectifying the extract phase, so as to obtain chlorobenzene and recovered pyridine or pyridine derivatives. In the present invention, sodium chloride generated by system neutralization can be fully utilized, introduction of an external salt is not needed, salting-out and extraction are successively achieved, and a salting-out water phase is directly returned and reused after extraction, thereby lowering the output of wastewater and energy consumption regarding reuse of wastewater, greatly reducing difficulties in extraction of pyridine or pyridine derivatives, decreasing the use amount of an extraction agent, and reducing the energy consumption of a rectification separation system.

专利号:US-6995289-B2
优先权日:2000-08-02
标题 :Process for synthesis of alpha, beta-unsaturated ketones
发明人：PATEL IAN; HOPES PHILIP
权利人:ASTRAZENECA AB
摘要:A method for the synthesis of an α,β-unsaturated ketone useful for making substituted 1,4-dihydropyridines is described by reacting an aldehyde with pyrrolidine and then adding a ketone followed by trifluoroacetic acid at low temperature. The synthesis is used in a process for making substituted 1,4-dihydropyridines wherein a vinylogous amide is prepared by reacting a 1,3-cyclohexanedione with a phenylethylamine. The α,β-unsaturated ketone can be reacted with a vinylogous amide to form a 1,5-diketone which can be converted to a substituted 1,4-dihydropyridine.