Patent · US Expired

Process for control of a flotation system

US5062964A · kind A · utility

1Cited by

2References

4Claims

0Family size

Assignee

J.M. Voith GmbH · DE

Inventors

Herbert Ortner · Heidenheim, DE
Lothar Pfalzer · Heidenheim, DE

Key dates

Filing date	Apr 6, 1990
Grant date	Nov 5, 1991
Priority date	—
Expiry date	Apr 6, 2010

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W30/64
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In a flotation system, the generated quantity of foam is determined and, independent thereof, process parameters which directly or indirectly affect the generated foam quantity are reduced in their quantity depending on foam quantity. This is brought about by reduction of specific substance flows and also such substance flows that circulate in a flotation system. Production waters used for dilution are partly replaced by fresh water. This precludes an excessive amount of generated foam from causing difficulties in the operation of a flotation system.

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