Patent · US Expired

Mixer for pulp and bleaching chemicals

US4913358A · kind A · utility

7Cited by

5References

6Claims

0Family size

Assignee

Maschinenfabrik Andritz Actiengesellschaft · AT

Inventors

Johann Sbaschnigg · Graz, AT
Richard Baumgarter · Graz, AT
Wilhelm Mausser · Graz, AT

Key dates

Filing date	Jun 8, 1988
Grant date	Apr 3, 1990
Priority date	—
Expiry date	Jun 8, 2008

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01F2025/912
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A high-output mixer, for the refining of intitially comminuted material and mixing with bleaching chemicals before introducing these in a bleaching tower, includes a horizonatal, ring-shaped mixing/refining zone betwwen a rotor disk as a lower part and a removable stator unit as an upper part.

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