JPS53139802A - Production of needleeleaf tree pulp by sulfite method containing magnesium as main component - Google Patents

Production of needleeleaf tree pulp by sulfite method containing magnesium as main component

Info

Publication number: JPS53139802A
Authority: JP; Japan
Prior art keywords: needleeleaf; production; main component; containing magnesium; method containing
Prior art date: 1977-05-03
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.): Pending

Application number

JP5321178A

Other languages

English (en)

Inventor

Patsuto Ruudorufu

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.)

Sulzer Escher Wyss AG

Original Assignee

Escher Wyss AG

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.)

1977-05-03

Filing date

1978-05-02

Publication date

1978-12-06

1978-05-02 Application filed by Escher Wyss AG filed Critical Escher Wyss AG

1978-12-06 Publication of JPS53139802A publication Critical patent/JPS53139802A/ja

Status Pending legal-status Critical Current

Links

FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title 1
LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 title 1
229910052749 magnesium Inorganic materials 0.000 title 1
239000011777 magnesium Substances 0.000 title 1

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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting 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
- D21C3/04—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
- D21C3/10—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites magnesium bisulfite

Landscapes

Paper (AREA)
Treating Waste Gases (AREA)

JP5321178A 1977-05-03 1978-05-02 Production of needleeleaf tree pulp by sulfite method containing magnesium as main component Pending JPS53139802A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH548977		1977-05-03

Publications (1)

Publication Number	Publication Date
JPS53139802A true JPS53139802A (en)	1978-12-06

Family

ID=4294440

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP5321178A Pending JPS53139802A (en)	1977-05-03	1978-05-02	Production of needleeleaf tree pulp by sulfite method containing magnesium as main component

Country Status (6)

Country	Link
JP (1)	JPS53139802A (ja)
AT (1)	AT364908B (ja)
BR (1)	BR7802645A (ja)
CA (1)	CA1101616A (ja)
FI (1)	FI781351A7 (ja)
SE (1)	SE7805124L (ja)

1978
- 1978-04-24 CA CA301,780A patent/CA1101616A/en not_active Expired
- 1978-04-27 BR BR7802645A patent/BR7802645A/pt unknown
- 1978-05-02 JP JP5321178A patent/JPS53139802A/ja active Pending
- 1978-05-02 FI FI781351A patent/FI781351A7/fi not_active Application Discontinuation
- 1978-05-02 AT AT0316478A patent/AT364908B/de not_active IP Right Cessation
- 1978-05-03 SE SE7805124A patent/SE7805124L/xx unknown

Also Published As

Publication number	Publication date
CA1101616A (en)	1981-05-26
FI781351A7 (fi)	1978-11-04
AT364908B (de)	1981-11-25
SE7805124L (sv)	1978-11-04
ATA316478A (de)	1981-04-15
BR7802645A (pt)	1978-12-12

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