NZ191815A - Vapour phase delignification of lignocellulose material with liquor containing cyclic keto compound additives - Google Patents

Vapour phase delignification of lignocellulose material with liquor containing cyclic keto compound additives

Info

Publication number
NZ191815A
NZ191815A NZ191815A NZ19181579A NZ191815A NZ 191815 A NZ191815 A NZ 191815A NZ 191815 A NZ191815 A NZ 191815A NZ 19181579 A NZ19181579 A NZ 19181579A NZ 191815 A NZ191815 A NZ 191815A
Authority
NZ
New Zealand
Prior art keywords
containing cyclic
vapour phase
liquor containing
lignocellulose material
keto compound
Prior art date
Application number
NZ191815A
Inventor
H Holton
Original Assignee
Canadian Ind
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=10500568&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NZ191815(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Canadian Ind filed Critical Canadian Ind
Publication of NZ191815A publication Critical patent/NZ191815A/en

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
    • 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
NZ191815A 1978-10-25 1979-10-10 Vapour phase delignification of lignocellulose material with liquor containing cyclic keto compound additives NZ191815A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7841856 1978-10-25

Publications (1)

Publication Number Publication Date
NZ191815A true NZ191815A (en) 1982-02-23

Family

ID=10500568

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ191815A NZ191815A (en) 1978-10-25 1979-10-10 Vapour phase delignification of lignocellulose material with liquor containing cyclic keto compound additives

Country Status (11)

Country Link
EP (1) EP0010451A1 (en)
JP (1) JPS5562289A (en)
AU (1) AU528368B2 (en)
BR (1) BR7906873A (en)
CA (1) CA1132763A (en)
ES (1) ES485352A1 (en)
FI (1) FI793317A (en)
NO (1) NO793363L (en)
NZ (1) NZ191815A (en)
PT (1) PT70365A (en)
ZA (1) ZA795541B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0136325B1 (en) * 1983-03-02 1989-06-14 Tag Pulp Industries S.A. Method for treating lignocellulose materials to obtain cellulose
SE510775C2 (en) * 1996-09-26 1999-06-21 Kvaerner Pulping Tech Sulfur-free cooking of chemical pulp
US6325892B1 (en) 1998-09-23 2001-12-04 University Of New Brunswick Method of delignifying sulphite pulp with oxygen and borohydride

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215588A (en) * 1963-08-15 1965-11-02 Lummus Co Continuous impregnation, cooking, and washing of fibrous material
CA986662A (en) * 1973-05-01 1976-04-06 David L. Mccandless Pretreatment of lignocellulosic material with anthraquinone salts in alkaline pulping
US4036680A (en) * 1976-12-14 1977-07-19 Canadian Industries, Ltd. Delignification of lignocellulosic material with a soda pulping liquor containing a Diels Alder adduct of benzoquinone or naphthoquinone in admixture with a nitro aromatic compound
US4127439A (en) * 1977-01-28 1978-11-28 Crown Zellerbach Corporation Pretreatment of lignocellulose with anthraquinone prior to pulping

Also Published As

Publication number Publication date
EP0010451A1 (en) 1980-04-30
AU5189879A (en) 1980-05-01
BR7906873A (en) 1980-06-03
CA1132763A (en) 1982-10-05
AU528368B2 (en) 1983-04-28
ZA795541B (en) 1980-10-29
JPS5562289A (en) 1980-05-10
NO793363L (en) 1980-04-28
ES485352A1 (en) 1980-07-01
FI793317A (en) 1980-04-26
PT70365A (en) 1979-11-01

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