5-SULFOISOPHTHALIC ACID SALTS AND PROCESS FOR THE PREPARATION THEREOF
申请人:Oster Timothy A.
公开号:US20130053593A1
公开(公告)日:2013-02-28
This invention relates to methods for the production of sodium, potassium, rubidium, cesium, magnesium, manganese, cobalt, nickel, aluminum, copper (II) and zinc salts of 5-sulfoisophthalic acid. In addition, this disclosure describes new compositions of matter, specifically, the rubidium, manganese, cobalt, nickel, and copper (II) salts of 5-sulfoisophthalic acid. The method utilizes the addition of metals salts to a crude sulfonation solution of 5-sulfoisophthalic acid.