NO784058L - Fremgangsmaate ved fremstilling av magnesiumsulfittmasse - Google Patents
Fremgangsmaate ved fremstilling av magnesiumsulfittmasseInfo
- Publication number
- NO784058L NO784058L NO784058A NO784058A NO784058L NO 784058 L NO784058 L NO 784058L NO 784058 A NO784058 A NO 784058A NO 784058 A NO784058 A NO 784058A NO 784058 L NO784058 L NO 784058L
- Authority
- NO
- Norway
- Prior art keywords
- oxygen gas
- mass
- pulp
- magnesium
- liquor
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 9
- JESHZQPNPCJVNG-UHFFFAOYSA-L magnesium;sulfite Chemical compound [Mg+2].[O-]S([O-])=O JESHZQPNPCJVNG-UHFFFAOYSA-L 0.000 title claims description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 229910001882 dioxygen Inorganic materials 0.000 claims description 15
- 238000005406 washing Methods 0.000 claims description 5
- 238000010411 cooking Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims 2
- 150000003388 sodium compounds Chemical class 0.000 claims 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 10
- 239000011777 magnesium Substances 0.000 description 10
- 229910052749 magnesium Inorganic materials 0.000 description 10
- 238000004061 bleaching Methods 0.000 description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- 229910052708 sodium Inorganic materials 0.000 description 7
- 239000003513 alkali Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
- D21C11/063—Treatment of gas streams comprising solid matter, e.g. the ashes resulting from the combustion of black liquor
- D21C11/066—Separation of solid compounds from these gases; further treatment of recovered products
-
- 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
- Paper (AREA)
- Saccharide Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7802789A SE7802789L (sv) | 1978-03-10 | 1978-03-10 | Sett vid framstellning av magnesiumsulfitmassa |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO784058L true NO784058L (no) | 1979-09-11 |
Family
ID=20334278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO784058A NO784058L (no) | 1978-03-10 | 1978-12-04 | Fremgangsmaate ved fremstilling av magnesiumsulfittmasse |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4227966A (sv) |
| AT (1) | ATA916078A (sv) |
| CA (1) | CA1115463A (sv) |
| CS (1) | CS216187B2 (sv) |
| DE (1) | DE2909409A1 (sv) |
| FI (1) | FI783785A (sv) |
| NO (1) | NO784058L (sv) |
| SE (1) | SE7802789L (sv) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4601262A (en) * | 1984-03-28 | 1986-07-22 | Jones Dallas W | Energy balance process for the pulp and paper industry |
| US20020129912A1 (en) * | 2000-12-22 | 2002-09-19 | Sca Hygiene Products Gmbh | Fully bleached sulfite chemical pulp, a process for the production thereof and products derived therefrom |
| DE10064131C2 (de) * | 2000-12-22 | 2003-03-27 | Sca Hygiene Prod Gmbh | Vollgebleichter Sulfit-Zellstoff, Verfahren zu seiner Herstellung und daraus hergestellte Produkte |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2385955A (en) * | 1941-04-08 | 1945-10-02 | George H Tomlinson | Manufacture of sulphite pulp |
| US2716589A (en) * | 1951-04-20 | 1955-08-30 | Kaiser Aluminium Chem Corp | Process of re-forming magnesium bisulfite solution |
| US3296064A (en) * | 1965-05-04 | 1967-01-03 | William T Neiman | Method of treating cellulosic pulping waste liquors with magnesium oxide to form a complex prior to burning thereof |
| US3843473A (en) * | 1971-08-23 | 1974-10-22 | Mo Och Domsjoe Ab | Impregnation of cellulosic pulp under superatmospheric pressure with waste alkaline oxygan gas bleaching liquor followed by oxygen-alkali bleaching |
| SE381897C (sv) * | 1973-11-23 | 1977-05-23 | Skogegarnas Ind Ab | Sett for satsvis alkalisk massakokning i kombination med kontinuerlig syredelignifiering |
-
1978
- 1978-03-10 SE SE7802789A patent/SE7802789L/sv not_active Application Discontinuation
- 1978-12-04 NO NO784058A patent/NO784058L/no unknown
- 1978-12-08 FI FI783785A patent/FI783785A/fi unknown
- 1978-12-12 CS CS788235A patent/CS216187B2/cs unknown
- 1978-12-21 AT AT0916078A patent/ATA916078A/de unknown
-
1979
- 1979-03-06 US US06/017,967 patent/US4227966A/en not_active Expired - Lifetime
- 1979-03-09 CA CA323,070A patent/CA1115463A/en not_active Expired
- 1979-03-09 DE DE19792909409 patent/DE2909409A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CA1115463A (en) | 1982-01-05 |
| DE2909409A1 (de) | 1979-09-13 |
| CS216187B2 (en) | 1982-10-29 |
| ATA916078A (de) | 1981-11-15 |
| SE7802789L (sv) | 1979-09-11 |
| FI783785A (fi) | 1979-09-11 |
| US4227966A (en) | 1980-10-14 |
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