[EN] A COST EFFECTIVE, PROCESS OF CONVERTING WASTE AMMONIA AND CARBON DIOXIDE INTO PHTHALOCYANINE COMPOUNDS VIA INTERMEDIATES<br/>[FR] PROCÉDÉ PEU COÛTEUX DE CONVERSION DE DÉCHETS AMMONIACAUX ET DE DIOXYDE DE CARBONE EN COMPOSÉS PHTALOCYANINE PAR LE BIAIS D'INTERMÉDIAIRES
申请人:SARASWATI PIGMENTS PVT LTD
公开号:WO2014045249A1
公开(公告)日:2014-03-27
A cost effective, environment friendly and industrially viable process for the preparation of phthalocyanine compounds more particularly copper phthalocyanine, other metal phthalocyanines and metal free phthalocyanine, the process comprising the steps of:scrubbing the waste ammonia and carbondioxide gaseous streams generated during /byphthalic anhydride - urea processin aqueous solution; saturating the aqueous solution to produce ammonia in the range of about 10-35 %; treating the saturated solution with phthalic anhydride and one or more suitable solvents to convert into phthalocyanine intermediates in the presence of one or more suitable catalyst;converting in-situ the phthalocyanine intermediatesto copper phthalocyanine or other metal / metal free phthalocyanine with the help of minimal amount of urea compound and metal salt.
一种成本效益、环保、工业可行的制备
酞菁化合物的方法,特别是
铜酞菁、其他
金属
酞菁和无
金属
酞菁,该方法包括以下步骤:在
水溶液中处理
酞酸酐-
尿素过程中产生的废
氨和
二氧化碳气流;饱和
水溶液以产生约10-35%的
氨气;在一个或多个适当的催化剂存在下,将饱和溶液与
酞酸酐和一个或多个适当的溶剂处理以转化为
酞菁中间体;在少量
尿素化合物和
金属盐的帮助下,原位转化
酞菁中间体为
铜酞菁或其他
金属/无
金属
酞菁。