公开(公告)号：AU2015238642B2

公开(公告)日：2018-07-12

申请号：AU2015238642

申请日：2015-03-13

Applicant: BASF SE

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

IPC: D21C9/10 ,  D21B1/04 ,  D21B1/06 ,  D21B1/12

Abstract: The invention relates to a method for producing bleached wood fibre material, comprising the following steps: a) delaminating wood particles, that are large and optionally pre-treated with chemicals and/or water, into modified wood particles; b) grinding the modified wood particles produced in step a) in one or a number of refiners; c) and optionally treating the material produced in step b) with oxidative or reductive bleaching agents. The method is characterised in that step a) and/or step b) are carried out in the presence of a composition Z, said composition Z containing one or a number of the following components (Z1) to (Z3): a salt of dithionous acid H

公开(公告)号：RU2649301C2

公开(公告)日：2018-03-30

申请号：RU2015127891

申请日：2013-12-02

Applicant: BASF SE

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

IPC: D21C3/00

Abstract: Изобретениеотноситсяк способуполученияцеллюлозыизсодержащеголигноцеллюлозуматериалапосредствомсульфитнойилисульфатнойваркив присутствиисолидитионистойкислоты, отличающемусятем, чтосольдитионистойкислотыиспользуютв количествеот 0,1 до 4,0 мас.% впересчетенаостатоксодержащеголигноцеллюлозуматериалапослесушкив печи. 5 з.п. ф-лы, 5 табл., 2 пр.

公开(公告)号：ZA201504934B

公开(公告)日：2017-11-29

申请号：ZA201504934

申请日：2015-07-09

Applicant: TECHNISCHE UNIVERSITÄT DRESDEN ,  BASF SE

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

Abstract: The invention relates to a method for producing cellulose from material containing lignocellulose by means of sulfite decomposition or sulfate decomposition in the presence of a salt of dithionous acid, characterized in that the salt of dithionous acid is used in an amount in the range of 0.1 to 4.0 wt% with respect to the amount of kiln-dry material containing lignocellulose.

公开(公告)号：CA2943663A1

公开(公告)日：2015-10-01

申请号：CA2943663

申请日：2015-03-13

Applicant: BASF SE

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

IPC: D21C9/10 ,  D21B1/04 ,  D21B1/06 ,  D21B1/12

Abstract: The invention relates to a method for producing bleached wood fibre material, comprising the following steps: a) delaminating wood particles, that are large and optionally pre-treated with chemicals and/or water, into modified wood particles; b) grinding the modified wood particles produced in step a) in one or a number of refiners; c) and optionally treating the material produced in step b) with oxidative or reductive bleaching agents. The method is characterised in that step a) and/or step b) are carried out in the presence of a composition Z, said composition Z containing one or a number of the following components (Z1) to (Z3): a salt of dithionous acid H2S2O4 (Z1); a compound (Z2) that generates the dithionous acid or a derivate of the dithionous acid; a salt of sulphurous acid (sulphite) plus sodium tetrahydridoborate (Z3); and optionally additives (Z4).

公开(公告)号：MX378703B

公开(公告)日：2025-03-11

申请号：MX2016012461

申请日：2016-09-23

Applicant: BASF SE

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

IPC: D21C9/10 ,  D21B1/04 ,  D21B1/06 ,  D21B1/12

Abstract: Un proceso para producir pasta de madera mecánica blanqueada que comprende los siguientes pasos: a) deslaminar partículas de madera, que en comparación son de mayor tamaño, que fueron pretratadas en forma opcional con químicos y/o agua para convertirse en partículas de madera, b) desbastar las partículas modificadas de madera de la etapa a) en uno o más refinadores, c) tratar en forma opcional la pasta que se obtuvo en la etapa b) con agentes blanqueadores oxidativos o reductores, una composición Z se encuentra presente durante la etapa a) y/o la etapa b), dicha composición Z que comprende uno o más de los siguientes componentes (Z1) a (Z3): una sal de ácido hidrosulfuroso H2S2O4 (Z1), un ácido hidrosulfuroso o un compuesto generador derivado de ácido hidrosulfuroso (Z2), una sal de ácido sulfúrico (sulfito) más tetrahidroborato de sodio (Z3) y también aditivos opcionales (Z4).

公开(公告)号：AU2015238642A1

公开(公告)日：2016-10-06

申请号：AU2015238642

申请日：2015-03-13

Applicant: BASF SE

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

IPC: D21C9/10 ,  D21B1/04 ,  D21B1/06 ,  D21B1/12

Abstract: The invention relates to a method for producing bleached wood fibre material, comprising the following steps: a) delaminating wood particles, that are large and optionally pre-treated with chemicals and/or water, into modified wood particles; b) grinding the modified wood particles produced in step a) in one or a number of refiners; c) and optionally treating the material produced in step b) with oxidative or reductive bleaching agents. The method is characterised in that step a) and/or step b) are carried out in the presence of a composition Z, said composition Z containing one or a number of the following components (Z1) to (Z3): a salt of dithionous acid H

公开(公告)号：CL2015001406A1

公开(公告)日：2016-02-05

申请号：CL2015001406

申请日：2015-05-25

Applicant: BASF SE ,  TECH UNIVERSITÄT DRESDEN

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

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

公开(公告)号：CA2943663C

公开(公告)日：2022-10-04

申请号：CA2943663

申请日：2015-03-13

Applicant: BASF SE

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

IPC: D21C9/10 ,  D21B1/04 ,  D21B1/06 ,  D21B1/12

Abstract: The invention relates to a method for producing bleached wood fibre material, comprising the following steps: a) delaminating wood particles, that are large and optionally pre-treated with chemicals and/or water, into modified wood particles; b) grinding the modified wood particles produced in step a) in one or a number of refiners; c) and optionally treating the material produced in step b) with oxidative or reductive bleaching agents. The method is characterised in that step a) and/or step b) are carried out in the presence of a composition Z, said composition Z containing one or a number of the following components (Z1) to (Z3): a salt of dithionous acid H2S2O4 (Z1); a compound (Z2) that generates the dithionous acid or a derivate of the dithionous acid; a salt of sulphurous acid (sulphite) plus sodium tetrahydridoborate (Z3); and optionally additives (Z4).

公开(公告)号：PL3122931T3

公开(公告)日：2020-05-18

申请号：PL15711458

申请日：2015-03-13

Applicant: BASF SE

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

IPC: D21C9/10 ,  D21B1/04 ,  D21B1/06 ,  D21B1/12

公开(公告)号：CL2016002398A1

公开(公告)日：2017-01-20

申请号：CL2016002398

申请日：2016-09-23

Applicant: BASF SE

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

IPC: D21B1/04 ,  D21B1/06 ,  D21C9/10