GB191357A - Process for obtaining and cleaning cellulose from wood and similar substances containing cellulose - Google Patents

Process for obtaining and cleaning cellulose from wood and similar substances containing cellulose

Info

Publication number
GB191357A
GB191357A GB4321/22A GB432122A GB191357A GB 191357 A GB191357 A GB 191357A GB 4321/22 A GB4321/22 A GB 4321/22A GB 432122 A GB432122 A GB 432122A GB 191357 A GB191357 A GB 191357A
Authority
GB
United Kingdom
Prior art keywords
cellulose
wood
obtaining
cleaning
substances 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
GB4321/22A
Inventor
Schmidt Erich
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 GB191357A publication Critical patent/GB191357A/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
    • D21C3/003—Pulping cellulose-containing materials with organic compounds
    • 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
    • D21C3/18—Pulping cellulose-containing materials with halogens or halogen-generating compounds
    • 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
    • D21C3/20—Pulping cellulose-containing materials with organic solvents or in solvent environment

Landscapes

  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Paper (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

In a process for obtaining cellulose from wood and the like by treatment with chlorine peroxide and subsequently with alkaline lye, the chlorine peroxide is used in solvents, such as dilute acetic acid, which dissolve the lignin after it has been transformed by the chlorine peroxide.
GB4321/22A 1922-01-04 1922-02-14 Process for obtaining and cleaning cellulose from wood and similar substances containing cellulose Expired GB191357A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE92287X 1922-01-04

Publications (1)

Publication Number Publication Date
GB191357A true GB191357A (en) 1923-03-22

Family

ID=5644109

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4321/22A Expired GB191357A (en) 1922-01-04 1922-02-14 Process for obtaining and cleaning cellulose from wood and similar substances containing cellulose

Country Status (5)

Country Link
AT (1) AT92287B (en)
CH (1) CH99050A (en)
DE (1) DE331907C (en)
FR (1) FR546556A (en)
GB (1) GB191357A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468771A (en) * 1944-04-03 1949-05-03 Univ Minnesota Process of preparing fibers and yarns
US2491499A (en) * 1946-02-12 1949-12-20 Diamond Alkali Co Treating ligno-cellulosic materials and resulting product
US2513788A (en) * 1947-01-31 1950-07-04 Brown Co Bleaching of sulfate wood pulp
US2706673A (en) * 1951-10-19 1955-04-19 Elmer R Burling Method of bleaching with chlorine dioxide
US2741537A (en) * 1952-03-26 1956-04-10 Olin Mathieson Available chlorine single-stage bleaching of sulfate pulp
US2741536A (en) * 1952-03-26 1956-04-10 Olin Mathieson Available chlorine multi-stage bleaching of sulfite pulp

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468771A (en) * 1944-04-03 1949-05-03 Univ Minnesota Process of preparing fibers and yarns
US2491499A (en) * 1946-02-12 1949-12-20 Diamond Alkali Co Treating ligno-cellulosic materials and resulting product
US2513788A (en) * 1947-01-31 1950-07-04 Brown Co Bleaching of sulfate wood pulp
US2706673A (en) * 1951-10-19 1955-04-19 Elmer R Burling Method of bleaching with chlorine dioxide
US2741537A (en) * 1952-03-26 1956-04-10 Olin Mathieson Available chlorine single-stage bleaching of sulfate pulp
US2741536A (en) * 1952-03-26 1956-04-10 Olin Mathieson Available chlorine multi-stage bleaching of sulfite pulp

Also Published As

Publication number Publication date
AT92287B (en) 1923-04-25
FR546556A (en) 1922-11-16
DE331907C (en) 1921-01-14
CH99050A (en) 1923-05-01

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