New inorganic and hybrid phosphate-based pigments

• Grant number: 95/03986-4
• Support Opportunities: Research Grants - Research Partnership for Technological Innovation - PITE
• Start date: March 01, 1996
• End date: August 31, 1997
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Fernando Galembeck
• Grantee: Fernando Galembeck
• Host Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Company: Serrana de Mineração Ltda
• City: Campinas

Abstract

The objective of this project was the development of two new classes of pigment and of the respective manufacturing processes. This involves white pigments and colored pigments, both based on phosphates (condensed or not) of metal ions: aluminum, calcium, iron and others. These new pigments are intended, on the one hand, to replace titanium dioxide in white paints and, on the other, to fill other gaps in the availability of colored pigments, of high optical quality and enhanced chemical stability in the environment. Due to their chemical nature, all the products in question should be exempt from problems of toxicity. Their production and disposal will be effected without creating new environmental problems and without increasing existing problems. Processes were used which have been the subject of patent requests, lodged by the requesting group; production operations on a pilot scale have been carried out at the premises of the interested company since June 1995. (AU)