ES479476A1 - Procedimiento para la obtencion de celulosa. - Google Patents

Procedimiento para la obtencion de celulosa.

Info

Publication number
ES479476A1
ES479476A1 ES479476A ES479476A ES479476A1 ES 479476 A1 ES479476 A1 ES 479476A1 ES 479476 A ES479476 A ES 479476A ES 479476 A ES479476 A ES 479476A ES 479476 A1 ES479476 A1 ES 479476A1
Authority
ES
Spain
Prior art keywords
dispersion
cellulose
production
producing
compounds containing
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
Application number
ES479476A
Other languages
English (en)
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.)
Bayer AG
Original Assignee
Bayer AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6037102&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES479476(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bayer AG filed Critical Bayer AG
Publication of ES479476A1 publication Critical patent/ES479476A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes

Landscapes

  • Paper (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Procedimiento para la obtención de celulosa, a partir de materiales lignocelulósicos, caracterizado porque dichos materiales lignocelulósicos se ponen en contacto con una dispersión que contiene compuestos orgánicos, cíclicos y con grupos cetona y/o hidroxi, en un dispersante líquido de la misma o similar densidad específica que los compuestos orgánicos, cíclicos y con grupos cetona y/o hidroxi.
ES479476A 1978-04-15 1979-04-10 Procedimiento para la obtencion de celulosa. Expired ES479476A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782816473 DE2816473A1 (de) 1978-04-15 1978-04-15 Dispersion zur verwendung bei der zellstoffgewinnung

Publications (1)

Publication Number Publication Date
ES479476A1 true ES479476A1 (es) 1979-07-16

Family

ID=6037102

Family Applications (1)

Application Number Title Priority Date Filing Date
ES479476A Expired ES479476A1 (es) 1978-04-15 1979-04-10 Procedimiento para la obtencion de celulosa.

Country Status (17)

Country Link
EP (1) EP0004928B1 (es)
JP (1) JPS54138603A (es)
AR (1) AR220189A1 (es)
AT (1) AT372716B (es)
AU (1) AU4607679A (es)
BR (1) BR7902259A (es)
CA (1) CA1136808A (es)
DE (2) DE2816473A1 (es)
ES (1) ES479476A1 (es)
FI (1) FI64668C (es)
IN (1) IN150690B (es)
NO (1) NO791151L (es)
NZ (1) NZ190182A (es)
PH (1) PH14724A (es)
PT (1) PT69477A (es)
TR (1) TR20509A (es)
ZA (1) ZA791770B (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2827111A1 (de) * 1978-06-21 1980-01-10 Bayer Ag Mittel zur verwendung bei der zellstoffgewinnung
NZ204262A (en) * 1982-06-02 1986-10-08 Champion Int Corp Kraft and alkaline pulping processes using synergistic composition to enhance pulp yield
JPS6197492A (ja) * 1984-10-18 1986-05-15 川崎化成工業株式会社 高濃度パルプ蒸解助剤水溶液
WO1995029288A1 (fr) * 1994-04-26 1995-11-02 Harima Chemicals, Inc. Adjuvant pour lessivage des pulpes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2049567A (en) * 1934-06-05 1936-08-04 Du Pont Manufacture of paper pulp
US3147179A (en) * 1959-06-26 1964-09-01 St Joe Paper Company Pulping processes
US3446700A (en) * 1966-03-07 1969-05-27 Diamond Shamrock Corp Process for cooking woodchips with a liquor containing condensation product of vicinal epoxide and phenol
DE2407620C3 (de) * 1974-02-16 1979-05-03 Chemische Werke Huels Ag, 4370 Marl Verfahren zur Herstellung von stabilen wäßrigen Dispersionen
SE384883B (sv) * 1974-09-06 1976-05-24 Kopparfors Ab Sett att oka cellulosautbytet vid sulfitkokning av ved

Also Published As

Publication number Publication date
EP0004928A1 (de) 1979-10-31
PH14724A (en) 1981-11-13
TR20509A (tr) 1981-09-03
ZA791770B (en) 1980-05-28
AU4607679A (en) 1979-10-25
FI791211A (fi) 1979-10-16
NO791151L (no) 1979-10-16
EP0004928B1 (de) 1981-04-08
AR220189A1 (es) 1980-10-15
NZ190182A (en) 1981-07-13
FI64668B (fi) 1983-08-31
FI64668C (fi) 1983-12-12
DE2960241D1 (en) 1981-04-30
JPS54138603A (en) 1979-10-27
PT69477A (pt) 1979-05-01
DE2816473A1 (de) 1979-10-25
AT372716B (de) 1983-11-10
CA1136808A (en) 1982-12-07
IN150690B (es) 1982-11-20
BR7902259A (pt) 1979-12-11
ATA280179A (de) 1983-03-15

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