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1. (WO2017033125) METHOD AND APPARATUS FOR PRODUCING MICROFIBRILLATED CELLULOSE FIBER

Pub. No.:    WO/2017/033125    International Application No.:    PCT/IB2016/055021
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Wed Aug 24 01:59:59 CEST 2016
IPC: D21D 1/26
D21C 9/00
D21D 1/06
D21D 1/20
D21H 11/18
Applicants: STORA ENSO OYJ
Inventors: HEISKANEN, Isto
KASTINEN, Henri
AXRUP, Lars
PÖLLÄNEN, Saija
KORHONEN, Jani
SUHONEN, Petri
TIAINEN, Teemu
VÄKEVÄINEN, Matti
Title: METHOD AND APPARATUS FOR PRODUCING MICROFIBRILLATED CELLULOSE FIBER
Abstract:
Method for producing microfibrillated cellulose(MFC), wherein the method comprising the steps of: Pre-treating of chemical pulp, such that, the pulp reaches a Schopper-Riegler (SR) value above 50, and refining the pulp, at a consistency of 3-6%, in a refiner with refiner blades, wherein the height of the refiner blades is in the range 2-3mm.