公开(公告)号：SE1351478A1

公开(公告)日：2015-06-11

申请号：SE1351478

申请日：2013-12-10

Applicant: STORA ENSO OYJ

Inventor： AXRUP LARS

IPC: B65D41/04 ,  B29C51/08 ,  C08J5/04

公开(公告)号：AU2013245244A1

公开(公告)日：2014-10-23

申请号：AU2013245244

申请日：2013-04-04

Applicant: STORA ENSO OYJ

Inventor： SAXELL HEIDI ,  HEISKANEN ISTO ,  AXRUP LARS ,  LAND HENSDAL CECILIA ,  JOKELA VEIKKO

IPC: C08B1/08 ,  C08B11/12

Abstract: The present invention provides a method for production of cellulose ethers in a high solids process substantially without use of organic solvents as reaction and/or washing medium. In the method of the invention the first alkalization step is carried out by using high solids content cellulose pulp and solid sodium hydroxide. This is followed by an etherification step where the solids content is preferably further increased and the use of solid etherification reactant is preferred. As no organic solvents are used as reaction media the invented method enables production of cellulose ethers directly from never dried pulp with significant savings in energy and investment costs. The method is especially suitable for the production of carboxymethyl cellulose sodium salt (CMC) with low degree of substitution (DS

公开(公告)号：FI20125864A

公开(公告)日：2014-02-21

申请号：FI20125864

申请日：2012-08-20

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  LAND HENSDAL CECILIA ,  AXRUP LARS ,  SAXELL HEIDI

IPC: D21H11/18

公开(公告)号：SE0950930A1

公开(公告)日：2011-06-04

申请号：SE0950930

申请日：2009-12-03

Applicant: STORA ENSO OYJ

Inventor： AXRUP LARS ,  HEISKANEN ISTO ,  RIIKONEN MIKA

IPC: D21H17/25 ,  D21H17/28 ,  D21H21/18 ,  D21H21/50