[EN] PROCESS FOR THE PRODUCTION OF DIACYL PEROXIDES<br/>[FR] PROCÉDÉ DE PRODUCTION DE PEROXYDES DE DIACYLE
申请人:NOURYON CHEMICALS INT BV
公开号:WO2020249688A1
公开(公告)日:2020-12-17
Process for the production of a diacyl peroxide involving the reaction of an anhydride with hydrogen peroxide, removal of the formed carboxylic acid, production of an anhydride from said carboxylic acid, and recycling of the anhydride within the process.
A facile iron-catalyzed decarboxylative radical coupling of alkyl diacyl peroxides with coumarins or chromones has been developed, affording a highly efficient approach to synthesize a variety of α-alkylated coumarins and β-alkylated chromones. The reaction proceeded smoothly without adding any ligand or additive and provided the corresponding products containing a wide scope of functional groups in
The invention pertains to a method for making a fluoropolymer comprising an aqueous emulsion polymerization of one or more fluorinated monomers wherein said aqueous emulsion polymerization is carried out in the presence of at least one cyclic fluorocompound of the following formula (I):
wherein X
1
, X
2
, X
3
, equal or different from each other are independently selected among H, F, and C
1-6
(per)fluoroalkyl groups, optionally comprising one or more catenary or non-catenary oxygen atoms; L represents a bond or a divalent group; R
F
is a divalent fluorinated C
1-3
bridging group; Y is a hydrophilic function selected among anionic functionalities, cationic functionalities and non-ionic functionalities.
[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.