NO133594B - - Google Patents
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- Publication number
- NO133594B NO133594B NO758/71A NO75871A NO133594B NO 133594 B NO133594 B NO 133594B NO 758/71 A NO758/71 A NO 758/71A NO 75871 A NO75871 A NO 75871A NO 133594 B NO133594 B NO 133594B
- Authority
- NO
- Norway
- Prior art keywords
- magnesium
- complex
- salts
- acids
- added
- Prior art date
Links
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 13
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 13
- 229910001882 dioxygen Inorganic materials 0.000 claims description 13
- 229910052749 magnesium Inorganic materials 0.000 claims description 13
- 239000011777 magnesium Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 150000002681 magnesium compounds Chemical class 0.000 claims description 11
- 229920002678 cellulose Polymers 0.000 claims description 10
- 239000001913 cellulose Substances 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 150000007513 acids Chemical class 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 159000000003 magnesium salts Chemical class 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 150000001447 alkali salts Chemical class 0.000 claims description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
- 150000001261 hydroxy acids Chemical class 0.000 claims description 3
- 239000012456 homogeneous solution Substances 0.000 claims description 2
- -1 hydroxide Chemical class 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 238000005470 impregnation Methods 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 29
- 238000002474 experimental method Methods 0.000 description 14
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 7
- 238000007792 addition Methods 0.000 description 7
- 239000002699 waste material Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 150000002680 magnesium Chemical class 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229960003330 pentetic acid Drugs 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- DLVZBSZXZDGKQY-UHFFFAOYSA-N 2,2-dihydroxybutanoic acid Chemical compound CCC(O)(O)C(O)=O DLVZBSZXZDGKQY-UHFFFAOYSA-N 0.000 description 1
- URDCARMUOSMFFI-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(2-hydroxyethyl)amino]acetic acid Chemical compound OCCN(CC(O)=O)CCN(CC(O)=O)CC(O)=O URDCARMUOSMFFI-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- CVHZOJJKTDOEJC-UHFFFAOYSA-N saccharin Chemical class C1=CC=C2C(=O)NS(=O)(=O)C2=C1 CVHZOJJKTDOEJC-UHFFFAOYSA-N 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
- C08B1/08—Alkali cellulose
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE02732/70A SE353749B (enrdf_load_stackoverflow) | 1970-03-02 | 1970-03-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO133594B true NO133594B (enrdf_load_stackoverflow) | 1976-02-16 |
| NO133594C NO133594C (enrdf_load_stackoverflow) | 1976-05-26 |
Family
ID=20260555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO758/71A NO133594C (enrdf_load_stackoverflow) | 1970-03-02 | 1971-03-01 |
Country Status (10)
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5027081B2 (enrdf_load_stackoverflow) * | 1971-11-10 | 1975-09-05 | ||
| US4045279A (en) * | 1972-01-17 | 1977-08-30 | Toyo Pulp Co., Ltd. | Process for the manufacture of pulp using sodium carbonate and oxygen |
| US4089737A (en) * | 1974-02-18 | 1978-05-16 | Toyo Pulp Company, Ltd. | Delignification of cellulosic material with an alkaline aqueous medium containing oxygen dissolved therein |
| SE393138B (sv) * | 1974-03-14 | 1977-05-02 | Mo Och Domsjoe Ab | Forfarande for blekning av cellulosa med en syre innehallande gas i nervaro av natriumbikarbonat |
| US4087318A (en) * | 1974-03-14 | 1978-05-02 | Mo Och Domsjo Aktiebolag | Oxygen-alkali delignification of lignocellulosic material in the presence of a manganese compound |
| US4338158A (en) * | 1976-04-09 | 1982-07-06 | Weyerhaeuser Company | Pulping in the presence of a protector |
| US4172006A (en) * | 1976-08-26 | 1979-10-23 | Weyerhaeuser Company | Method of delignifying wood chips with oxygen by adding cooking liquor under pressure |
| CA1079457A (en) * | 1976-09-13 | 1980-06-17 | Robert C. Eckert | Manganic ion bleaching process |
| US4197168A (en) * | 1978-06-07 | 1980-04-08 | Scm Corporation | Recovery of anthraquinone from tall oil |
| US4594130A (en) * | 1978-11-27 | 1986-06-10 | Chang Pei Ching | Pulping of lignocellulose with aqueous alcohol and alkaline earth metal salt catalyst |
| FR2457338A1 (fr) * | 1979-05-25 | 1980-12-19 | Interox | Procede pour la protection des matieres cellulosiques au cours de leurs traitements par des solutions alcalines |
| US5770010A (en) * | 1995-04-20 | 1998-06-23 | R-J Holding Company | Pulping process employing nascent oxygen |
| US20020129911A1 (en) * | 2000-10-16 | 2002-09-19 | Marcoccia Bruno S. | Process and configuration for providing external upflow/internal downflow in a continuous digester |
| WO2005047599A2 (en) * | 2003-11-08 | 2005-05-26 | Lally Thomas J | Method for manufacturing fire-retardant cellulose-based materials |
| US9528061B2 (en) | 2010-09-10 | 2016-12-27 | Synthetic Genomics Inc. | Solubilization of coal or lignocellulose biomass |
| US20130233340A1 (en) * | 2012-03-07 | 2013-09-12 | Paul Sapan | Flavored Function Specific Toothpicks |
| EP3891120B1 (en) * | 2019-01-31 | 2023-11-15 | Organofuel Sweden AB | A process for the production of oxidized wood products |
-
1970
- 1970-03-02 SE SE02732/70A patent/SE353749B/xx unknown
-
1971
- 1971-02-26 FI FI583/71A patent/FI55531C/fi active
- 1971-02-26 ZA ZA711271A patent/ZA711271B/xx unknown
- 1971-02-26 US US119369A patent/US3701712A/en not_active Expired - Lifetime
- 1971-03-01 FR FR7106969A patent/FR2084031A5/fr not_active Expired
- 1971-03-01 DE DE2109542A patent/DE2109542C3/de not_active Expired
- 1971-03-01 NO NO758/71A patent/NO133594C/no unknown
- 1971-03-02 BR BR1287/71*[A patent/BR7101287D0/pt unknown
- 1971-03-02 JP JP46010410A patent/JPS5022601B1/ja active Pending
- 1971-03-02 AT AT178371A patent/AT311169B/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2109542B2 (de) | 1973-11-08 |
| AT311169B (de) | 1973-11-12 |
| FI55531B (fi) | 1979-04-30 |
| ZA711271B (en) | 1971-11-24 |
| DE2109542A1 (de) | 1971-09-16 |
| FR2084031A5 (enrdf_load_stackoverflow) | 1971-12-17 |
| US3701712A (en) | 1972-10-31 |
| FI55531C (fi) | 1979-08-10 |
| JPS5022601B1 (enrdf_load_stackoverflow) | 1975-08-01 |
| NO133594C (enrdf_load_stackoverflow) | 1976-05-26 |
| SE353749B (enrdf_load_stackoverflow) | 1973-02-12 |
| DE2109542C3 (de) | 1974-06-12 |
| BR7101287D0 (pt) | 1973-06-07 |
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