ES2048149T3 - Procedimiento para tratar materias primas celulosicas. - Google Patents

Procedimiento para tratar materias primas celulosicas.

Info

Publication number
ES2048149T3
ES2048149T3 ES87113802T ES87113802T ES2048149T3 ES 2048149 T3 ES2048149 T3 ES 2048149T3 ES 87113802 T ES87113802 T ES 87113802T ES 87113802 T ES87113802 T ES 87113802T ES 2048149 T3 ES2048149 T3 ES 2048149T3
Authority
ES
Spain
Prior art keywords
cellulose
membranes
procedure
raw materials
solutions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES87113802T
Other languages
English (en)
Inventor
Joachim Dr Behnke
Helmut Dr Schulze
Ernst A Dr Berg
Michael Dr Pelger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akzo NV
Original Assignee
Akzo NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Akzo NV filed Critical Akzo NV
Application granted granted Critical
Publication of ES2048149T3 publication Critical patent/ES2048149T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/08—Polysaccharides
    • B01D71/10—Cellulose; Modified cellulose
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/001—Modification of pulp properties
    • D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • External Artificial Organs (AREA)

Abstract

EL INVENTO SE REFIERE AL PROCESO DE OBTENCION DE CELULOSA DE SUSTANCIA EXTRACTIVA CON MINIMA REACCION LAL, SIENDO SOMETIDA EN LA INDUSTRIA DEL ALGODON O CELULOSA A CONTINUACION DEL TRATAMIENTO USUAL DE UN LAVADO Y PRESION CON AGUA, SOSA A UNA CONCENTRACION DE MENOS DE 5G/L. DE CONTENIDO ACIDO, A TEMPERATURA DE 120 A 180 C Y UNA PRESION DE 2 A 20 BAR DURANTE 1 A 10 HORAS. LA CELULOSA ASI OBTENIDA ENCUENTRA SU USO EN LA PRODUCCION DE MEMBRANAS DE HEMODIALISIS Y/O DE HEMOFILTRACION EN FORMA DE MEMBRANAS PLANAS, MEMBRANAS DE TUBO O HILO DE SUSTANCIA EXTRACTIVA CON UNA REACCION LAL REDUCIDA. LA REGENERACION PUEDE SER DE COUCAM DE CELULOSA, SOLUCIONES DE XABTATO DE CELULOSA O SOLUCIONES DE CELULOSA DE AMINOXIDO TERCIARIO O UNA SOLUCION CON INCLUSION DE LICL.
ES87113802T 1986-10-03 1987-09-22 Procedimiento para tratar materias primas celulosicas. Expired - Lifetime ES2048149T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863633737 DE3633737A1 (de) 1986-10-03 1986-10-03 Verfahren zum behandeln von cellulosischen rohstoffen

Publications (1)

Publication Number Publication Date
ES2048149T3 true ES2048149T3 (es) 1994-03-16

Family

ID=6311006

Family Applications (1)

Application Number Title Priority Date Filing Date
ES87113802T Expired - Lifetime ES2048149T3 (es) 1986-10-03 1987-09-22 Procedimiento para tratar materias primas celulosicas.

Country Status (5)

Country Link
US (1) US4814440A (es)
EP (1) EP0262553B1 (es)
JP (1) JP2635620B2 (es)
DE (2) DE3633737A1 (es)
ES (1) ES2048149T3 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0647466A3 (de) * 1993-10-08 1996-01-17 Akzo Nobel Nv Cellulosische Membranen.
DE19515137A1 (de) * 1995-04-25 1996-10-31 Thueringisches Inst Textil Verfahren zur Herstellung von Cellulose-Flachfolien
CN104674584A (zh) * 2015-02-06 2015-06-03 新疆国力源环保科技有限公司 一种棉杆本色半化学机械浆工艺

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA323241A (en) * 1932-06-14 Alvin Richter George Cellulose fibre processing
DE344749C (es) *
FR531651A (fr) * 1919-05-30 1922-01-18 Technochemia A G Procédé de préparation de celluloses devant servir à la fabrication de la soie artificielle
DE337672C (de) * 1919-05-31 1921-04-10 Rudolf Linkmeyer Verfahren zur Herstellung von Zellulosexanthogenatloesungen, welche sich besonders fuer die Spinnfaserfabrikation eignen
DE394436C (de) * 1919-07-05 1924-04-17 Rudolf Linkmeyer Verfahren zur Herstellung von Cellulosexanthogenat
US1838367A (en) * 1930-03-31 1931-12-29 Cornstalk Products Company Inc Preparation of high alpha cellulosic pulp
US1880047A (en) * 1930-09-06 1932-09-27 Brown Co Pulp refining process
US1924623A (en) * 1930-09-06 1933-08-29 Brown Co Refinement of cellulose fiber
GB427626A (en) * 1933-09-23 1935-04-23 Henry Dreyfus Improvements in or relating to the manufacture of cellulose
GB470764A (en) * 1936-02-18 1937-08-18 British Celanese Improvements in or relating to the manufacture of purified cellulose from cellulose pulps
GB557324A (en) * 1942-05-11 1943-11-16 Henry Dreyfus Improvements in the production of cellulose from ligno-cellulosic material
JPS5136801A (ja) * 1974-09-24 1976-03-27 Sanyo Electric Co Terebijonjuzokitonosenkyokusochi
DE7829409U1 (de) * 1978-10-02 1986-07-31 Akzo Gmbh, 5600 Wuppertal Dialysemembranhohlfaden mit größerer Austauschfläche
JPS5584503A (en) * 1978-12-19 1980-06-25 Teijin Ltd Preparing cellulose ester based selective permeable membrane
DE3317037A1 (de) * 1983-05-10 1984-11-15 Hoechst Ag, 6230 Frankfurt Membran aus regenerierter cellulose mit verbesserrten diffusionseigenschaften und verfahren zur herstellung
DE3319504A1 (de) * 1983-05-28 1984-11-29 Akzo Gmbh, 5600 Wuppertal Reinigungsbehandlung des blutkompartments von dialysatoren
DE3341113A1 (de) * 1983-11-12 1985-05-23 Akzo Gmbh, 5600 Wuppertal Dialysemembran mit verbesserter vertraeglichkeit

Also Published As

Publication number Publication date
EP0262553A2 (de) 1988-04-06
US4814440A (en) 1989-03-21
EP0262553B1 (de) 1994-01-12
DE3633737C2 (es) 1989-10-05
JP2635620B2 (ja) 1997-07-30
EP0262553A3 (en) 1989-04-26
JPS63101401A (ja) 1988-05-06
DE3788769D1 (de) 1994-02-24
DE3633737A1 (de) 1988-04-14

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