FI43031C - Menetelmä selluloosan valmistamiseksi havupuun ja lehtipuun seoksista yksivaiheisella sulfiittiliuennuksella käyttäen kationina magneesiumia - Google Patents
Menetelmä selluloosan valmistamiseksi havupuun ja lehtipuun seoksista yksivaiheisella sulfiittiliuennuksella käyttäen kationina magneesiumiaInfo
- Publication number
- FI43031C FI43031C FI630028A FI2863A FI43031C FI 43031 C FI43031 C FI 43031C FI 630028 A FI630028 A FI 630028A FI 2863 A FI2863 A FI 2863A FI 43031 C FI43031 C FI 43031C
- Authority
- FI
- Finland
- Prior art keywords
- softwood
- hardwood
- cation
- cellulose
- magnesium
- Prior art date
Links
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title 1
- 150000001768 cations Chemical class 0.000 title 1
- 229920002678 cellulose Polymers 0.000 title 1
- 239000001913 cellulose Substances 0.000 title 1
- 239000011121 hardwood Substances 0.000 title 1
- 238000002386 leaching Methods 0.000 title 1
- 229910052749 magnesium Inorganic materials 0.000 title 1
- 239000011777 magnesium Substances 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000000203 mixture Substances 0.000 title 1
- 238000002360 preparation method Methods 0.000 title 1
- 239000011122 softwood Substances 0.000 title 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 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
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1962A0039238 DE1517142A1 (de) | 1962-01-18 | 1962-01-18 | Verfahren zur Herstellung von Zellstoff aus Mischungen von Nadelholz,vorzugsweise Kiefern- und Fichtenholz,und Laubholz |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI43031B FI43031B (en:Method) | 1970-09-02 |
| FI43031C true FI43031C (fi) | 1970-12-10 |
Family
ID=6931262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI630028A FI43031C (fi) | 1962-01-18 | 1963-01-08 | Menetelmä selluloosan valmistamiseksi havupuun ja lehtipuun seoksista yksivaiheisella sulfiittiliuennuksella käyttäen kationina magneesiumia |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT253346B (en:Method) |
| CH (1) | CH424454A (en:Method) |
| FI (1) | FI43031C (en:Method) |
| FR (1) | FR1345310A (en:Method) |
| NO (1) | NO121699B (en:Method) |
| SE (1) | SE219883C1 (en:Method) |
-
1962
- 1962-12-20 FR FR20000A patent/FR1345310A/fr not_active Expired
- 1962-12-27 CH CH1522862A patent/CH424454A/de unknown
-
1963
- 1963-01-04 AT AT9363A patent/AT253346B/de active
- 1963-01-08 FI FI630028A patent/FI43031C/fi active
- 1963-01-10 NO NO147081A patent/NO121699B/no unknown
- 1963-01-16 SE SE045663A patent/SE219883C1/sv unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1345310A (fr) | 1963-12-06 |
| SE219883C1 (sv) | 1968-04-02 |
| NO121699B (en:Method) | 1971-03-29 |
| CH424454A (de) | 1966-11-15 |
| AT253346B (de) | 1967-04-10 |
| FI43031B (en:Method) | 1970-09-02 |
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