Patent · US Expired

Process for the production of titanium dioxide pigments

US4797163A · kind A · utility

1Cited by

4References

10Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Gunter Lailach · Krefeld, DE
Karl-Heinz Schultz · Krefeld, DE

Key dates

Filing date	Aug 24, 1987
Grant date	Jan 10, 1989
Priority date	—
Expiry date	Aug 24, 2007

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/20
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Energy required for the calcining or drying operations in the production of titanium dioxide by the sulfate process and the chloride process is at least in part provided by burning by-product offgases containing carbon monoxide obtained in the chlorination of titanium-containing raw materials under reducing conditions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.