CA1073162A - Process for treating mechanical pulps and/or products prepared therefrom - Google Patents
Process for treating mechanical pulps and/or products prepared therefromInfo
- Publication number
- CA1073162A CA1073162A CA234,947A CA234947A CA1073162A CA 1073162 A CA1073162 A CA 1073162A CA 234947 A CA234947 A CA 234947A CA 1073162 A CA1073162 A CA 1073162A
- Authority
- CA
- Canada
- Prior art keywords
- pulp
- buffering agent
- weight
- mechanical
- buffers
- Prior art date
- 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.)
- Expired
Links
- 229920001131 Pulp (paper) Polymers 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims description 13
- 239000000872 buffer Substances 0.000 claims abstract description 17
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Substances OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 11
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 7
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims abstract description 4
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 4
- 150000003863 ammonium salts Chemical class 0.000 claims abstract description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011975 tartaric acid Substances 0.000 claims abstract description 4
- 235000002906 tartaric acid Nutrition 0.000 claims abstract description 4
- 150000001340 alkali metals Chemical class 0.000 claims abstract 2
- 238000010521 absorption reaction Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- -1 alkali metal salt Chemical class 0.000 claims description 2
- 239000006172 buffering agent Substances 0.000 claims 9
- 239000000203 mixture Substances 0.000 claims 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 1
- 239000001099 ammonium carbonate Substances 0.000 claims 1
- 235000012501 ammonium carbonate Nutrition 0.000 claims 1
- FYKDNWHPKQOZOT-UHFFFAOYSA-M sodium;dihydrogen phosphate;2-hydroxypropane-1,2,3-tricarboxylic acid Chemical group [Na+].OP(O)([O-])=O.OC(=O)CC(O)(C(O)=O)CC(O)=O FYKDNWHPKQOZOT-UHFFFAOYSA-M 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 4
- 239000002023 wood Substances 0.000 abstract description 2
- PXRKCOCTEMYUEG-UHFFFAOYSA-N 5-aminoisoindole-1,3-dione Chemical compound NC1=CC=C2C(=O)NC(=O)C2=C1 PXRKCOCTEMYUEG-UHFFFAOYSA-N 0.000 abstract 1
- 238000011282 treatment Methods 0.000 description 8
- 229920002678 cellulose Polymers 0.000 description 5
- 239000001913 cellulose Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000007853 buffer solution Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000003811 acetone extraction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001609 comparable effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229960004838 phosphoric acid Drugs 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 230000002311 subsequent effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/38—Conserving the finely-divided cellulosic material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/20—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing organic materials
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/14—Disintegrating in mills
- D21B1/16—Disintegrating in mills in the presence of chemical agents
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- Materials Engineering (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Hematology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO743286A NO136583C (no) | 1974-09-12 | 1974-09-12 | Mekanisk tremasse med hoey absorpsjonshastighet, samt fremgangsmaate for fremstilling derav |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1073162A true CA1073162A (en) | 1980-03-11 |
Family
ID=19881821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA234,947A Expired CA1073162A (en) | 1974-09-12 | 1975-09-08 | Process for treating mechanical pulps and/or products prepared therefrom |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5184904A (en, 2012) |
| AT (1) | AT347781B (en, 2012) |
| BE (1) | BE833343A (en, 2012) |
| CA (1) | CA1073162A (en, 2012) |
| DE (1) | DE2539570C3 (en, 2012) |
| DK (1) | DK141255B (en, 2012) |
| FI (1) | FI59444C (en, 2012) |
| FR (1) | FR2284706A1 (en, 2012) |
| GB (1) | GB1515865A (en, 2012) |
| IT (1) | IT1049168B (en, 2012) |
| NL (1) | NL7510763A (en, 2012) |
| NO (1) | NO136583C (en, 2012) |
| SE (1) | SE418873B (en, 2012) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE432118B (sv) * | 1975-02-26 | 1984-03-19 | Moelnlycke Ab | Mekanisk fluffmassa och sett for framstellning derav |
| NO760666L (no) * | 1976-02-27 | 1977-08-30 | Papirind Forskningsinst | Fremgangsm}te ved fremstilling av mekaniske masser. |
| PH13425A (en) * | 1976-05-10 | 1980-04-23 | Du Pont | 2,3,8,12b-tetrahydro 1 h-3a,8-methano-dibenzo(3,4,6,7)cyclohepta(1,2-c)pyrrole derivatives pharmaceutical compositions containing same and method |
| DE3128100C2 (de) * | 1981-07-16 | 1986-05-22 | Chemische Fabrik Stockhausen GmbH, 4150 Krefeld | Absorptionsmittel für Blut und seröse Körperflüssigkeiten |
| DE3712445A1 (de) * | 1987-04-11 | 1988-10-20 | Ver Papierwerke Ag | Hygienisches zellstoffprodukt mit verbesserter hautvertraeglichkeit |
-
1974
- 1974-09-12 NO NO743286A patent/NO136583C/no unknown
-
1975
- 1975-09-05 DE DE2539570A patent/DE2539570C3/de not_active Expired
- 1975-09-05 AT AT688175A patent/AT347781B/de active
- 1975-09-08 CA CA234,947A patent/CA1073162A/en not_active Expired
- 1975-09-10 FR FR7527764A patent/FR2284706A1/fr active Granted
- 1975-09-10 IT IT12785/75A patent/IT1049168B/it active
- 1975-09-11 DK DK406775AA patent/DK141255B/da not_active Application Discontinuation
- 1975-09-11 FI FI752552A patent/FI59444C/fi not_active IP Right Cessation
- 1975-09-11 SE SE7510158A patent/SE418873B/xx not_active Application Discontinuation
- 1975-09-12 NL NL7510763A patent/NL7510763A/xx not_active Application Discontinuation
- 1975-09-12 BE BE159977A patent/BE833343A/xx not_active IP Right Cessation
- 1975-09-12 JP JP50110115A patent/JPS5184904A/ja active Pending
- 1975-09-12 GB GB37605/75A patent/GB1515865A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2284706A1 (fr) | 1976-04-09 |
| NO136583C (no) | 1984-06-07 |
| JPS5184904A (en, 2012) | 1976-07-24 |
| DE2539570C3 (de) | 1980-02-14 |
| AT347781B (de) | 1979-01-10 |
| DE2539570B2 (de) | 1979-06-13 |
| NL7510763A (nl) | 1976-03-16 |
| NO743286L (en, 2012) | 1976-03-15 |
| DK141255B (da) | 1980-02-11 |
| FI59444B (fi) | 1981-04-30 |
| ATA688175A (de) | 1978-05-15 |
| FI59444C (fi) | 1981-08-10 |
| DK406775A (en, 2012) | 1976-03-13 |
| DE2539570A1 (de) | 1976-04-01 |
| NO136583B (en, 2012) | 1977-06-20 |
| IT1049168B (it) | 1981-01-20 |
| GB1515865A (en) | 1978-06-28 |
| SE418873B (sv) | 1981-06-29 |
| BE833343A (fr) | 1975-12-31 |
| FI752552A7 (en, 2012) | 1976-03-13 |
| FR2284706B1 (en, 2012) | 1982-04-23 |
| SE7510158L (sv) | 1976-03-15 |
| AU8455175A (en) | 1977-03-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |