NO132244B - - Google Patents
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- Publication number
- NO132244B NO132244B NO2973/70A NO297370A NO132244B NO 132244 B NO132244 B NO 132244B NO 2973/70 A NO2973/70 A NO 2973/70A NO 297370 A NO297370 A NO 297370A NO 132244 B NO132244 B NO 132244B
- Authority
- NO
- Norway
- Prior art keywords
- temperature
- impregnation
- impregnated
- pulp
- lignin
- Prior art date
Links
- 238000000034 method Methods 0.000 claims description 55
- 238000005470 impregnation Methods 0.000 claims description 47
- 230000008569 process Effects 0.000 claims description 32
- 238000010411 cooking Methods 0.000 claims description 31
- 229920005610 lignin Polymers 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 23
- 239000000126 substance Substances 0.000 claims description 17
- 102100030386 Granzyme A Human genes 0.000 claims description 16
- 101001009599 Homo sapiens Granzyme A Proteins 0.000 claims description 16
- 229920006395 saturated elastomer Polymers 0.000 claims description 11
- 229920002678 cellulose Polymers 0.000 claims description 5
- 239000001913 cellulose Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 28
- 239000002023 wood Substances 0.000 description 26
- 238000009835 boiling Methods 0.000 description 12
- 239000002655 kraft paper Substances 0.000 description 11
- 235000011121 sodium hydroxide Nutrition 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000003513 alkali Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 10
- 239000012808 vapor phase Substances 0.000 description 10
- 150000001720 carbohydrates Chemical class 0.000 description 8
- 235000014633 carbohydrates Nutrition 0.000 description 8
- 239000007791 liquid phase Substances 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- 238000009826 distribution Methods 0.000 description 3
- 241000218596 Picea rubens Species 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000011093 chipboard Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012978 lignocellulosic material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 241000218657 Picea Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000009931 pascalization Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
Landscapes
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US88347069A | 1969-12-09 | 1969-12-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO132244B true NO132244B (pt) | 1975-06-30 |
| NO132244C NO132244C (pt) | 1975-10-08 |
Family
ID=25382635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO2973/70A NO132244C (pt) | 1969-12-09 | 1970-07-31 |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS542281B1 (pt) |
| NO (1) | NO132244C (pt) |
| SE (1) | SE386920B (pt) |
-
1970
- 1970-07-31 NO NO2973/70A patent/NO132244C/no unknown
- 1970-08-27 JP JP7463770A patent/JPS542281B1/ja active Pending
- 1970-11-03 SE SE7014832A patent/SE386920B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE386920B (sv) | 1976-08-23 |
| NO132244C (pt) | 1975-10-08 |
| JPS542281B1 (pt) | 1979-02-05 |
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