Novel proton type beta zeolite, preparation method thereof and process for preparing phenol compound using the same
申请人:UBE INDUSTRIES, LTD.
公开号:US20040242938A1
公开(公告)日:2004-12-02
Disclosed are a proton type &bgr; zeolite in which an acid site showing a desorption peak with a range of ±100° C. with a center of 330° C. exists in a spectrum measured by the ammonia temperature programmed desorption method (NH
3
-TPD), and an amount of a strong acid site showing a desorption peak of 500° C. or higher is controlled to 2.5 &mgr;mol/g or less, a method for preparing the same, and a process for preparing a phenol compound by oxidizing a benzene compound with a peroxide in the presence of the proton type &bgr; zeolite.
[EN] PROCESS FOR THE PRODUCTION OF A FERTILIZER<br/>[FR] PROCÉDÉ DE PRODUCTION D'UN ENGRAIS
申请人:AKZO NOBEL CHEMICALS INT BV
公开号:WO2019145304A1
公开(公告)日:2019-08-01
Process for the production of a compound comprising potassium phosphite comprising the steps of (a) reacting carboxylic acid of the formula R-(C(=O)OH)n with phosphorous trichloride (PCl3) towards a mixture comprising phosphorous acid (H3PO3) and acid chloride of the formula R-(C(=O)Cl)n; wherein R is a linear or branched alkyl or alkanediyl group with 1-20 carbon atoms and n is 1 or 2, (b) subjecting said mixture to a separation step, thereby obtaining (i) a fraction comprising crude phosphorous acid (H3PO3) and (ii) a fraction comprising acid chloride, (c) combining water, a potassium compound selected from KOH, KHCO3 and K2CO3, and the fraction comprising crude phosphorous acid, thereby forming an aqueous solution comprising potassium phosphite, and (d) removing organic compounds from said aqueous solution.
industrially–viable aerobic α–alkylation of cyclic and acyclic ketones with allyl and alkyl alkenes in the presence of catalytic amounts of Mn2+, under homo– and heterogeneous conditions, is achieved here. The substitution of organic peroxides by Mn2+ either as a simple soluble salt or supported in zeolites, in air, generates in–situ peracid radicals and circumvents the aggressiveness of current industrial
NOVEL SALTS, POLYMORPHS, AND SYNTHETIC PROCESSES REGARDING IMIDAZOLE DERIVATIVE
申请人:Partridge John Joseph
公开号:US20110319461A1
公开(公告)日:2011-12-29
The present invention relates to a process for producing 2-[1-(S)-carboxy-2(S)-[3-(3,5-dichloro-benzyl)-3H-imidazol-4-yl]-ethylamino]-4-methyl-pentanoic acid, as well as novel salts, including hydrates and solvates thereof, and novel crystalline and amorphous forms thereof.