SE7805124L - Forfarande for framstellning av barrvedscellulosamassa med magnesiumsulfitforfarandet - Google Patents

Forfarande for framstellning av barrvedscellulosamassa med magnesiumsulfitforfarandet

Info

Publication number: SE7805124L
Authority: SE; Sweden
Prior art keywords: procedure; magnesium; cellulosa; converted; mass
Prior art date: 1977-05-03

Application number

SE7805124A

Other languages

English (en)

Inventor

R Patt

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

1978-05-03

Publication date

1978-11-04

1978-05-03 Application filed by Escher Wyss Ag filed Critical Escher Wyss Ag

1978-11-04 Publication of SE7805124L publication Critical patent/SE7805124L/sv

Links

238000000034 method Methods 0.000 title abstract 4
JESHZQPNPCJVNG-UHFFFAOYSA-L magnesium;sulfite Chemical compound [Mg+2].[O-]S([O-])=O JESHZQPNPCJVNG-UHFFFAOYSA-L 0.000 title 1
CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 abstract 2
241000218657 Picea Species 0.000 abstract 2
239000002023 wood Substances 0.000 abstract 2
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
229920002678 cellulose Polymers 0.000 abstract 1
235000010980 cellulose Nutrition 0.000 abstract 1
238000012432 intermediate storage Methods 0.000 abstract 1
229910052749 magnesium Inorganic materials 0.000 abstract 1
239000011777 magnesium Substances 0.000 abstract 1
VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract 1
239000000347 magnesium hydroxide Substances 0.000 abstract 1
229910001862 magnesium hydroxide Inorganic materials 0.000 abstract 1
229910052943 magnesium sulfate Inorganic materials 0.000 abstract 1
235000019341 magnesium sulphate Nutrition 0.000 abstract 1
LPHFLPKXBKBHRW-UHFFFAOYSA-L magnesium;hydrogen sulfite Chemical compound [Mg+2].OS([O-])=O.OS([O-])=O LPHFLPKXBKBHRW-UHFFFAOYSA-L 0.000 abstract 1
239000008267 milk Substances 0.000 abstract 1
210000004080 milk Anatomy 0.000 abstract 1
235000013336 milk Nutrition 0.000 abstract 1
LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 abstract 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)

SE7805124A 1977-05-03 1978-05-03 Forfarande for framstellning av barrvedscellulosamassa med magnesiumsulfitforfarandet SE7805124L (sv)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number	Publication Date
SE7805124L true SE7805124L (sv)	1978-11-04

Family

ID=4294440

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7805124A SE7805124L (sv)	1977-05-03	1978-05-03	Forfarande for framstellning av barrvedscellulosamassa med magnesiumsulfitforfarandet

Country Status (6)

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

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 FI FI781351A patent/FI781351A7/fi not_active Application Discontinuation
- 1978-05-02 JP JP5321178A patent/JPS53139802A/ja active Pending
- 1978-05-02 AT AT0316478A patent/AT364908B/de not_active IP Right Cessation
- 1978-05-03 SE SE7805124A patent/SE7805124L/sv unknown

Also Published As

Publication number	Publication date
CA1101616A (en)	1981-05-26
AT364908B (de)	1981-11-25
JPS53139802A (en)	1978-12-06
ATA316478A (de)	1981-04-15
BR7802645A (pt)	1978-12-12
FI781351A7 (fi)	1978-11-04

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