Yellow pigment composition for image recording and process for producing the same
申请人:Sanyo Color Works, Ltd.
公开号:EP1424370B1
公开(公告)日:2010-01-13
A quantitative one-pot synthesis method for industrial azo pigments with recyclable wastewater
作者:Guangyuan Feng、Meiling Zhu、Lei Liu、Chunbao Li
DOI:10.1039/c8gc03982h
日期:——
coupling component. The reactions were fast and quantitative. The granular PTFE, wastewater and excess HCl were then reused 11 times without deteriorating the reaction rate and product purity. Altogether, 22 industrial pigments and 3 azocompounds were synthesized and the reaction can produce up to 22.7 g of product in the laboratory. Somereactions require less than 2 equiv. of HCl and a mechanism explaining