CAS: 645-92-1; 4,6-Diamino-1,3,5-Triazin-2-Ol

上下游产品

Melam 2,4,6-triethoxy-[1,3,5]triazine guanidine; formate BIGUANIDEammelide cyanuric acid H-[1,3,5]triazin-2-one4,6-dihydrazino-1H-[1,3,5]triazin-2-one ammonia

Alkaline Earth Salt Of/the/ Methylsulfuric Acid置于乙醇,氨体系中,化学反应生成 4,6-二氨基-2-羟基-1,3,5-三嗪
参考文献:Weddige,Journal Fur Praktische Chemie (Leipzig 1954),1886,Vol. <2> 33,P. 81
标题:Weddige,Journal Fur Praktische Chemie (Leipzig 1954),1886,Vol. <2> 33,P. 81

专利信息

专利号:US-5202438-A
优先权日:1991-04-04
标 题 :Process for the synthesis of melamine cyanurate
发明人：PAUL JEAN-MICHEL
权利人:ATOCHEM ELF SA
摘要:For the synthesis of melamine cyanurate, by the reaction of cyanuric acid and melamine in an aqueous medium, the reaction is conducted in the presence of a strong mineral acid at a pH not above 1.

专利号:US-12391655-B1
优先权日:2022-10-07
标 题:Melamine process with a two-stage purification of melamine offgas
发明人：GAMBA SIMONE
权利人:CASALE SA
摘要:A process for the synthesis of melamine including the purification of the offgas released by the synthesis of melamine by means of a first purification stage followed by a second purification stage (7); in the first purification stage (6) the offgas (3) is contacted with urea melt from the second stage (7) and with a recirculated urea melt (8, 9) containing ammonia and melamine precursors (5); in the second purification stage (7) the offgas from the first stage is contacted with fresh urea melt (15); said recirculated urea melt is withdrawn from bottom of the first stage and cooled in a shell and tube heat exchanger (11) to a temperature of not less than 165° C. preferably in the range 165° C. to 245° C. prior to reintroduction in said first stage.

专利号:WO-2024240658-A1
优先权日:2023-05-25
标 题:Melamine process with urea melt-based washing of melamine offgas
发明人：DI CARLO GABRIELE; CIPOLLA MAURIZIO; GAMBA SIMONE
权利人:CASALE SA
摘要:A process for the synthesis of melamine from urea wherein offgas from the melamine synthesis reaction is washed in a scrubber with urea melt, the urea melt removed from the scrubber is sent to a urea melt pump and partly recirculated to the scrubber, said urea melt pump includes a dual seal pressurized with water.

专利号:WO-2024083571-A1
优先权日:2022-10-21
标题 :Melamine process with purification of melamine offgas
发明人：GAMBA SIMONE
权利人:CASALE SA
摘要:A process for the synthesis of melamine including the purification of the offgas released by the synthesis of melamine by means of a single purification stage (6); in the purification stage (6), the offgas (3) is washed with fresh urea melt and with a recirculated urea melt (8) containing ammonia and melamine precursors (5); said recirculated urea melt is withdrawn from bottom of the single purification stage (6) and cooled in a shell and tube heat exchanger (11), optionally after mixing with the fresh urea melt (15), to a temperature of at least 165 °C, preferably in the range 165 °C to 245 °C, prior to reintroduction in the purification stage.

专利号:US-4725684-A
优先权日:1987-04-02
标 题:Synthesis of urea cyanurate
发明人：MASON ROBERT W; PARKER THOMAS C
权利人:OLIN CORP
摘要:A process for producing urea cyanurate which comprises reacting an aqueous solution of urea with cyanuric acid at a temperature below the melting point of urea provides reaction conditions which minimize urea decomposition and are energy efficient. The urea cyanurate product can be used directly in the manufacture of cyanuric acid in a process which minimizes the build up of scale on the reactor walls. The cyanuric acid product has reduced concentrations of by-products such as ammelide and ammeline.

专利号:US-8894886-B1
优先权日:2010-03-05
标 题 :Reductive-expansion synthesis of graphene
发明人：LUHRS CLAUDIA CATALINA; PHILLIPS JONATHAN
权利人:LUHRS CLAUDIA CATALINA; PHILLIPS JONATHAN; STC UNM
摘要:Exemplary embodiments provide materials and methods for forming graphene-based exfoliated products with low oxygen contents by a reductive-expansion reaction from a physical mixture containing graphite-based precursor(s) and a chemical agent. Exemplary embodiments also provide materials and methods for forming graphene-based exfoliated products with controllable amounts of nitrogen and/or other impurities incorporated in the material structure as a result of a reductive-expansion reaction from a physical mixture containing graphite-based precursor(s) and a chemical agent.