SE406780B - SINGLE STEP, SEMI-CHEMICAL PROCESS FOR PREPARATION OF WOOD MASS - Google Patents

SINGLE STEP, SEMI-CHEMICAL PROCESS FOR PREPARATION OF WOOD MASS

Info

Publication number
SE406780B
SE406780B SE7305923A SE7305923A SE406780B SE 406780 B SE406780 B SE 406780B SE 7305923 A SE7305923 A SE 7305923A SE 7305923 A SE7305923 A SE 7305923A SE 406780 B SE406780 B SE 406780B
Authority
SE
Sweden
Prior art keywords
semi
preparation
single step
chemical process
wood mass
Prior art date
Application number
SE7305923A
Other languages
Swedish (sv)
Inventor
J A Hammond
E M Karter
Original Assignee
Westvaco Corp
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 Westvaco Corp filed Critical Westvaco Corp
Publication of SE406780B publication Critical patent/SE406780B/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
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0014—Combination of various pulping processes with one or several recovery systems (cross-recovery)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
SE7305923A 1972-05-01 1973-04-26 SINGLE STEP, SEMI-CHEMICAL PROCESS FOR PREPARATION OF WOOD MASS SE406780B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24886872A 1972-05-01 1972-05-01

Publications (1)

Publication Number Publication Date
SE406780B true SE406780B (en) 1979-02-26

Family

ID=22941023

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7305923A SE406780B (en) 1972-05-01 1973-04-26 SINGLE STEP, SEMI-CHEMICAL PROCESS FOR PREPARATION OF WOOD MASS

Country Status (10)

Country Link
JP (2) JPS4954601A (en)
AU (1) AU456456B2 (en)
CA (1) CA990013A (en)
DE (1) DE2322375C3 (en)
FI (1) FI55530C (en)
FR (1) FR2183100B1 (en)
GB (1) GB1432245A (en)
IT (1) IT1023018B (en)
NO (1) NO142266C (en)
SE (1) SE406780B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1432245A (en) * 1972-05-01 1976-04-14 Westvaco Corp Method of pulping wood
FR2184608B1 (en) * 1972-05-15 1975-04-04 Owens Illinois Inc
RU2091529C1 (en) * 1995-11-21 1997-09-27 Грудинин Владимир Павлович Method of preparation of cooking liquid for production of fibrous intermediate product
US20090038767A1 (en) * 2007-08-07 2009-02-12 Andritz Inc. Method and System for Semi-Chemical Pulping

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1432245A (en) * 1972-05-01 1976-04-14 Westvaco Corp Method of pulping wood

Also Published As

Publication number Publication date
JPS5227803A (en) 1977-03-02
AU5498573A (en) 1974-10-31
NO142266B (en) 1980-04-14
DE2322375C3 (en) 1978-12-07
NO142266C (en) 1980-07-23
FI55530C (en) 1979-08-10
FI55530B (en) 1979-04-30
CA990013A (en) 1976-06-01
DE2322375B2 (en) 1978-04-20
AU456456B2 (en) 1974-12-19
JPS4954601A (en) 1974-05-28
DE2322375A1 (en) 1973-11-15
GB1432245A (en) 1976-04-14
IT1023018B (en) 1978-05-10
FR2183100B1 (en) 1975-04-04
FR2183100A1 (en) 1973-12-14

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