Patent · US Active

Method for manufacturing fine mineral powder products

US8393557B2 · kind B2 · utility

0Cited by

2References

11Claims

0Family size

Assignee

OMYA DEVELOPMENT AG · CH

Inventors

Ulrich Schindler · Grafing, DE
Christoph Bauer · Graz, AT

Key dates

Filing date	Nov 12, 2007
Grant date	Mar 12, 2013
Priority date	—
Expiry date	Jun 10, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB08B17/02
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method for manufacturing fine mineral powders using systems that include one or more air classifiers, dust separators like cyclones and/or filters, at least one ventilator and instruments connecting tubes or pipes for the transport of air. The relative humidity of air in the air classifier is kept in a range between 15% to 35%.

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