GB757970A - An improved method of producing half stuff, which is capable of being bleached, from the wood of coniferous and deciduous trees - Google Patents

An improved method of producing half stuff, which is capable of being bleached, from the wood of coniferous and deciduous trees

Info

Publication number
GB757970A
GB757970A GB34570/54A GB3457054A GB757970A GB 757970 A GB757970 A GB 757970A GB 34570/54 A GB34570/54 A GB 34570/54A GB 3457054 A GB3457054 A GB 3457054A GB 757970 A GB757970 A GB 757970A
Authority
GB
United Kingdom
Prior art keywords
wood
pressure
vacuum
pump
treating
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
GB34570/54A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB757970A publication Critical patent/GB757970A/en
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
    • D21C3/24—Continuous processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/10—Physical methods for facilitating impregnation
    • 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
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
GB34570/54A 1954-02-08 1954-11-29 An improved method of producing half stuff, which is capable of being bleached, from the wood of coniferous and deciduous trees Expired GB757970A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT314929X 1954-02-08
AT280754X 1954-07-28

Publications (1)

Publication Number Publication Date
GB757970A true GB757970A (en) 1956-09-26

Family

ID=25608222

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34570/54A Expired GB757970A (en) 1954-02-08 1954-11-29 An improved method of producing half stuff, which is capable of being bleached, from the wood of coniferous and deciduous trees

Country Status (5)

Country Link
BE (1) BE533805A (xx)
CH (1) CH314929A (xx)
DE (1) DE1061612B (xx)
FR (1) FR1115967A (xx)
GB (1) GB757970A (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108350088A (zh) * 2015-09-28 2018-07-31 双子科技有限责任公司 提高纤维素的质量和反应活性的方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT385061B (de) * 1985-11-29 1988-02-10 Neusiedler Ag Verfahren zur gewinnung von zellstoff aus pflanzenfasermaterial

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE203230C (xx) *
US480334A (en) * 1892-08-09 Hermann xdelbert alfred
FR525403A (fr) * 1915-02-18 1921-09-22 Leopold Enge Procédé pour la fabrication d'une fibrine claire et résistante de bois ou d'autres matières contenant de la cellulose
FR703039A (fr) * 1920-10-01 1931-04-22 Ges Fuer Technischen Fortschritt Mbh Procédé d'obtention de cellulose et de fibres filables
US1633730A (en) * 1924-12-22 1927-06-28 Jr Frederick K Fish Apparatus and process for making paper pulp
US1859845A (en) * 1926-04-08 1932-05-24 Arthur M Hyde Treatment of wood for the production of pulp
US1859848A (en) * 1926-09-03 1932-05-24 Arthur M Hyde Production of fibrous pulp from vegetable material
FR876760A (fr) * 1939-07-19 1942-11-17 Ramens Patenter Ab Perfectionnements à la fabrication de pâte de bois ou cellulose
AT175782B (de) * 1951-02-28 1953-08-10 Waldhof Zellstoff Fab Verfahren zur Herstellung von Halbzellstoff

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108350088A (zh) * 2015-09-28 2018-07-31 双子科技有限责任公司 提高纤维素的质量和反应活性的方法

Also Published As

Publication number Publication date
BE533805A (xx)
FR1115967A (fr) 1956-05-02
CH314929A (de) 1956-07-15
DE1061612B (de) 1959-07-16

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