PROCESS FOR REMOVING INTERFERING SUBSTANCES IN THE PRODUCTION OF MECHANICAL PULP AND PROCESS FOR PRODUCING MECHANICAL PULP

Title:

PROCESS FOR REMOVING INTERFERING SUBSTANCES IN THE PRODUCTION OF MECHANICAL PULP AND PROCESS FOR PRODUCING MECHANICAL PULP

Document Type and Number:

WIPO Patent Application WO2005064074

Kind Code:

A3

Abstract:

The invention relates to a method for removing an extractive during the production of mechanical pulp, the method comprising a step for impregnating chopped ligno-cellulosic material intended for use in pulp production before mechanical defibration with a liquid containing a peracid at a maximum pH value of 7, the amount of peracid being 0.5-20 kg/ton of dry lignocellulosic material, indicated as 100 % peracid. The invention also relates to a method for producing mechanical pulp.

More Like This:

WO/2010/081227	REMOVAL OF INHIBITORY COMPOUNDS DURING PRE-TREATMENT OF LIGNOCELLULOSIC BIOMASS
WO/2008/074220	A PREPARATION METHOD OF A BAMBOO PULP
WO/2017/127004	CHLORINE DIOXIDE STAGE FOR CONTROLLING VISCOSITY IN DISSOLVING PULPS

Inventors:

KOTONEN PETTERI (FI)
VAEKIPARTA TONI (FI)
JAEKAERAE JUKKA (FI)
SVEDMAN MIKAEL (FI)

Application Number:

PCT/FI2004/000813

Publication Date:

November 03, 2005

Filing Date:

December 31, 2004

Export Citation:

Click for automatic bibliography generation Help

Assignee:

KEMIRA OYJ (FI)
KOTONEN PETTERI (FI)
VAEKIPARTA TONI (FI)
JAEKAERAE JUKKA (FI)
SVEDMAN MIKAEL (FI)

International Classes:

D21C1/04; (IPC1-7): D21C1/04

Foreign References:

US3428520A	1969-02-18
US6364999B1	2002-04-02

Download PDF:

View/Download PDF PDF Help

Previous Patent: METHOD FOR REMOVING IMPURITIES FROM AN AQUEOUS PAPERMAKING FIBRE SUSPENSION BY FLOTATION

Next Patent: CLOSED CYCLE ZERO DISCHARGE OXIDIZING PULPING PROCESS