SE8303101D0 - MASS COOKING PROCEDURE AND COMPOSITION FOR THE IMPLEMENTATION OF THE SAME - Google Patents

MASS COOKING PROCEDURE AND COMPOSITION FOR THE IMPLEMENTATION OF THE SAME

Info

Publication number
SE8303101D0
SE8303101D0 SE8303101A SE8303101A SE8303101D0 SE 8303101 D0 SE8303101 D0 SE 8303101D0 SE 8303101 A SE8303101 A SE 8303101A SE 8303101 A SE8303101 A SE 8303101A SE 8303101 D0 SE8303101 D0 SE 8303101D0
Authority
SE
Sweden
Prior art keywords
pulp
composition
percent
lignocellulosic
anthraquinone
Prior art date
Application number
SE8303101A
Other languages
Swedish (sv)
Other versions
SE8303101L (en
Inventor
M S Steltenkamp
Original Assignee
St Regis Paper Co
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 St Regis Paper Co filed Critical St Regis Paper Co
Publication of SE8303101D0 publication Critical patent/SE8303101D0/en
Publication of SE8303101L publication Critical patent/SE8303101L/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

Landscapes

  • Paper (AREA)
  • General Preparation And Processing Of Foods (AREA)

Abstract

The present disclosure comprises an improved process of pulping lignocellulosic material and a composition for enhancement of the yield of pulp derived from lignocellulosic material. The novel composition which enhances the production of pulp comprises: a. between about 0.1 and 1.5 percent by weight, based on the lignocellulosic raw material treated, of anthraquinone; b. between about 0.1 percent and 10.0 percent by weight, based on the lignocellulosic raw material treated, of a promoter for the anthraquinone which comprises a metallic salt capable of donating a metallic cation selected from the alkaline earth metals calcium, barium, strontium,magnesium and zinc, with preferred species of this promoter being the compound calcium hydroxide. and the compound calcium oxide; and c. spent liquor from the outflow of the digester in a quantity up to 50% by volume of the total pulping liquor. The use of the improved process and novel composition will lead to an increase in the overall pulp yield of several percentage points of the total amount of pulp obtained.
SE8303101A 1982-06-02 1983-06-01 MASS COOKING PROCEDURE AND COMPOSITION FOR THE IMPLEMENTATION OF THE SAME SE8303101L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38421382A 1982-06-02 1982-06-02

Publications (2)

Publication Number Publication Date
SE8303101D0 true SE8303101D0 (en) 1983-06-01
SE8303101L SE8303101L (en) 1983-12-03

Family

ID=23516463

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8303101A SE8303101L (en) 1982-06-02 1983-06-01 MASS COOKING PROCEDURE AND COMPOSITION FOR THE IMPLEMENTATION OF THE SAME

Country Status (8)

Country Link
AU (1) AU553354B2 (en)
CA (1) CA1196156A (en)
FI (1) FI80730C (en)
FR (1) FR2528084A1 (en)
NO (1) NO831946L (en)
NZ (1) NZ204262A (en)
SE (1) SE8303101L (en)
ZA (1) ZA833578B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2850680B1 (en) 2003-01-31 2005-04-15 Secmair DEVICE FOR SPREADING CAILLOUX ON A PAVEMENT, PROVIDED WITH AN ANTI-ENCASTRATION BAR
WO2010066026A1 (en) 2008-12-08 2010-06-17 Fpinnovations Increasing alkaline pulping yield for softwood with metal ions
WO2018006093A1 (en) * 2016-07-01 2018-01-04 Cargill, Incorporated Anthraquinone compositions and preparations thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA773044B (en) * 1976-06-02 1978-04-26 Australian Paper Manufacturers Improvements in pulping processes
DE2816473A1 (en) * 1978-04-15 1979-10-25 Bayer Ag DISPERSION FOR USE IN CELL PROCESSING
SU926125A1 (en) * 1980-10-08 1982-05-07 Белорусский технологический институт им.С.М.Кирова Process for producing intermediate cellulose product

Also Published As

Publication number Publication date
NZ204262A (en) 1986-10-08
AU553354B2 (en) 1986-07-10
FI831948L (en) 1983-12-03
FI80730C (en) 1990-07-10
CA1196156A (en) 1985-11-05
NO831946L (en) 1983-12-05
FI831948A0 (en) 1983-05-31
FR2528084A1 (en) 1983-12-09
SE8303101L (en) 1983-12-03
AU1852483A (en) 1985-03-07
ZA833578B (en) 1984-12-24
FI80730B (en) 1990-03-30

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