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
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)
- Compositions Of Macromolecular Compounds (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (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.
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)
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)
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 |
-
1978
- 1978-04-15 DE DE19782816473 patent/DE2816473A1/de not_active Withdrawn
-
1979
- 1979-03-16 IN IN177/DEL/79A patent/IN150690B/en unknown
- 1979-04-05 NO NO791151A patent/NO791151L/no unknown
- 1979-04-05 PH PH22355A patent/PH14724A/en unknown
- 1979-04-09 EP EP79101084A patent/EP0004928B1/de not_active Expired
- 1979-04-09 DE DE7979101084T patent/DE2960241D1/de not_active Expired
- 1979-04-10 ES ES479476A patent/ES479476A1/es not_active Expired
- 1979-04-11 PT PT69477A patent/PT69477A/pt unknown
- 1979-04-11 BR BR7902259A patent/BR7902259A/pt unknown
- 1979-04-11 AR AR276157A patent/AR220189A1/es active
- 1979-04-12 CA CA000325807A patent/CA1136808A/en not_active Expired
- 1979-04-12 ZA ZA791770A patent/ZA791770B/xx unknown
- 1979-04-12 FI FI791211A patent/FI64668C/fi not_active IP Right Cessation
- 1979-04-12 NZ NZ190182A patent/NZ190182A/xx unknown
- 1979-04-13 JP JP4446379A patent/JPS54138603A/ja active Pending
- 1979-04-13 TR TR20509A patent/TR20509A/xx unknown
- 1979-04-13 AT AT0280179A patent/AT372716B/de not_active IP Right Cessation
- 1979-04-17 AU AU46076/79A patent/AU4607679A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CA1136808A (en) | 1982-12-07 |
AR220189A1 (es) | 1980-10-15 |
DE2960241D1 (en) | 1981-04-30 |
FI64668C (fi) | 1983-12-12 |
TR20509A (tr) | 1981-09-03 |
EP0004928B1 (de) | 1981-04-08 |
ATA280179A (de) | 1983-03-15 |
NZ190182A (en) | 1981-07-13 |
IN150690B (es) | 1982-11-20 |
DE2816473A1 (de) | 1979-10-25 |
AT372716B (de) | 1983-11-10 |
ZA791770B (en) | 1980-05-28 |
EP0004928A1 (de) | 1979-10-31 |
AU4607679A (en) | 1979-10-25 |
PH14724A (en) | 1981-11-13 |
NO791151L (no) | 1979-10-16 |
PT69477A (pt) | 1979-05-01 |
JPS54138603A (en) | 1979-10-27 |
FI64668B (fi) | 1983-08-31 |
BR7902259A (pt) | 1979-12-11 |
FI791211A (fi) | 1979-10-16 |
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