公开(公告)号：DE112006002316A5

公开(公告)日：2008-07-31

申请号：DE112006002316

申请日：2006-09-14

Applicant: BASF SE

Inventor： BIRKERT OLIVER ,  HAMERS CHRISTOPH ,  KRUMBACHER ERICH ,  SCHACHTL MARTIN

IPC: D21H19/48 ,  D21H23/48

公开(公告)号：SI3122931T1

公开(公告)日：2020-02-28

申请号：SI201531045

申请日：2015-03-13

Applicant: BASF SE

Inventor： ERREN STEFAN ,  SCHONHABER DIETER ,  SCHACHTL MARTIN ,  OSIPOV PAVEL VASSILIEVITCH

IPC: D21C9/00 ,  D21B1/00

公开(公告)号：ZA201607131B

公开(公告)日：2018-08-30

申请号：ZA201607131

申请日：2016-10-17

Applicant: BASF SE

Inventor： ERREN STEFAN ,  SCHÖNHABER DIETER ,  SCHACHTL MARTIN ,  OSIPOV PAVEL VASSILIEVITCH

Abstract: In a process for producing bleached mechanical woodpulp, said process comprising the steps ofa) delaminating comparatively large particles of wood, which have optionally been pretreated with chemicals and/or water, into modified particles of wood,b) grinding the modified particles of wood from a) in one or more refiners,c) optionally treating the stalk obtained in step b) with oxidative or reductive bleaching agents, a composition Z is present during step a) and/or step b), said composition Z comprising one or more of the following components (Z1) to (Z3): a salt of dithionous acid H2S2O4(Z1), a dithionous acid or dithionous acid derivative generator compound (Z2), a salt of sulfurous acid (sulfite) plus sodium tetraborohydride (Z3) and also optionally additives (Z4).

公开(公告)号：MX2015007586A

公开(公告)日：2016-05-05

申请号：MX2015007586

申请日：2013-12-02

Applicant: BASF SE

Inventor： ERREN STEFAN ,  SCHÖNHABER DIETER ,  SCHACHTL MARTIN ,  FISCHER STEFFEN ,  BÄURICH CHRISTIAN

IPC: D21C3/00 ,  B27N3/00 ,  D21C3/02 ,  D21C3/04 ,  D21C3/22 ,  D21C9/10 ,  D21C11/08

Abstract: Un método de producción de celulosa a partir de material lignocelulósico por digestión de sulfito o digestión de sulfato en presencia de una sal de ácido ditionoso comprende el uso de la sal de ácido ditionoso en una cantidad del 0,1 al 4,0% en peso en base a la cantidad de material lignocelulósico secado en horno.