Synthetic garnite tiles and a method of producing the same from beach sand garnet

US6063720A · kind A · utility

Assignee

• COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH · IN

Inventors

• Amitabha Kumar · Shadnagar, IN
• Goutam Banerjee · Sherghati, IN
• Dinesh Kumar Das · Shadnagar, IN
• Nar Singh · Shadnagar, IN
• Santosh Kumar Haldar · Shadnagar, IN

Key dates

• Filing date: Aug 1, 1997
• Grant date: May 16, 2000
• Expiry date: Aug 1, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S264/31
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

This invention relates to synthetic garnite tiles made essentially from garnite sand and a process for the production of synthetic garnite tiles essentially from garnet sand which is a by-product of beach sand from rare earths extraction, said process comprising mixing beach sand garnet, feldspar and clay thoroughly; pressing the mixture using a press at a pressure in the range of 40-80 MPa to form tiles of desired shapes and sizes; drying the tiles so formed at a temperature of 100-120.degree. C.; firing the dried tiles at a temperature in the range of 1050-1250.degree. C. with a soaking for a period ranging from 1.5 to 2.5 hours, and polishing the resultant tiles.