NO130020B - - Google Patents
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- Publication number
- NO130020B NO130020B NO02972/70A NO297270A NO130020B NO 130020 B NO130020 B NO 130020B NO 02972/70 A NO02972/70 A NO 02972/70A NO 297270 A NO297270 A NO 297270A NO 130020 B NO130020 B NO 130020B
- Authority
- NO
- Norway
- Prior art keywords
- polysulfide
- impregnation
- liquid
- polysulphide
- stabilization
- Prior art date
Links
- 229920001021 polysulfide Polymers 0.000 claims description 107
- 239000005077 polysulfide Substances 0.000 claims description 59
- 150000008117 polysulfides Polymers 0.000 claims description 59
- 238000000034 method Methods 0.000 claims description 51
- 239000007788 liquid Substances 0.000 claims description 50
- 238000005470 impregnation Methods 0.000 claims description 47
- 239000002023 wood Substances 0.000 claims description 36
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 33
- 230000008569 process Effects 0.000 claims description 31
- 230000006641 stabilisation Effects 0.000 claims description 28
- 238000011105 stabilization Methods 0.000 claims description 28
- 239000012978 lignocellulosic material Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 238000000354 decomposition reaction Methods 0.000 claims description 13
- 150000004676 glycans Chemical class 0.000 claims description 13
- 229920001282 polysaccharide Polymers 0.000 claims description 13
- 239000005017 polysaccharide Substances 0.000 claims description 13
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 10
- 239000000908 ammonium hydroxide Substances 0.000 claims description 10
- 230000015556 catabolic process Effects 0.000 claims description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- 238000009835 boiling Methods 0.000 claims description 7
- 229920002678 cellulose Polymers 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 6
- 238000006731 degradation reaction Methods 0.000 claims description 5
- 150000002500 ions Chemical class 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 12
- 239000003513 alkali Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 9
- 229940043379 ammonium hydroxide Drugs 0.000 description 9
- 235000011114 ammonium hydroxide Nutrition 0.000 description 9
- 239000002655 kraft paper Substances 0.000 description 9
- -1 sodium hydroxide-sodium sulphide Chemical compound 0.000 description 9
- 238000010411 cooking Methods 0.000 description 8
- 229910052717 sulfur Inorganic materials 0.000 description 7
- 239000011593 sulfur Substances 0.000 description 7
- 150000001720 carbohydrates Chemical class 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 235000014633 carbohydrates Nutrition 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-M hydrosulfide Chemical compound [SH-] RWSOTUBLDIXVET-UHFFFAOYSA-M 0.000 description 4
- 229920005610 lignin Polymers 0.000 description 4
- 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 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 229910021653 sulphate ion Inorganic materials 0.000 description 3
- 241000218657 Picea Species 0.000 description 2
- 240000009002 Picea mariana Species 0.000 description 2
- 235000017997 Picea mariana var. mariana Nutrition 0.000 description 2
- 235000018000 Picea mariana var. semiprostrata Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011093 chipboard Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229960002523 mercuric chloride Drugs 0.000 description 1
- LWJROJCJINYWOX-UHFFFAOYSA-L mercury dichloride Chemical compound Cl[Hg]Cl LWJROJCJINYWOX-UHFFFAOYSA-L 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- AWLUSOLTCFEHNE-UHFFFAOYSA-N sodium;urea Chemical compound [Na].NC(N)=O AWLUSOLTCFEHNE-UHFFFAOYSA-N 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 1
- 238000005303 weighing Methods 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 |
|---|---|---|---|
| US86474069A | 1969-10-08 | 1969-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO130020B true NO130020B (enrdf_load_html_response) | 1974-06-24 |
Family
ID=25343957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO02972/70A NO130020B (enrdf_load_html_response) | 1969-10-08 | 1970-07-31 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3661698A (enrdf_load_html_response) |
| FI (1) | FI51114C (enrdf_load_html_response) |
| NO (1) | NO130020B (enrdf_load_html_response) |
| SE (1) | SE354301B (enrdf_load_html_response) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1013903A (en) * | 1973-06-04 | 1977-07-19 | Union Camp Corporation | Method of pulping with polysulfide |
| US5041192A (en) * | 1988-09-16 | 1991-08-20 | University Of South Florida | Supercritical delignification of wood |
| US7828930B2 (en) * | 2007-11-20 | 2010-11-09 | International Paper Company | Use of polysulfide in modified cooking |
| FI127420B (fi) * | 2011-06-23 | 2018-05-31 | Andritz Oy | Menetelmä selluloosamassan valmistamiseksi |
| US20190226142A1 (en) * | 2018-01-19 | 2019-07-25 | Jim Constantacos | Method for improved pulping using an environmentally friendly pulping aid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2944928A (en) * | 1957-09-20 | 1960-07-12 | Kibrick | Method of preparing paper pulp |
-
1969
- 1969-10-08 US US864740A patent/US3661698A/en not_active Expired - Lifetime
-
1970
- 1970-07-31 NO NO02972/70A patent/NO130020B/no unknown
- 1970-09-11 FI FI702507A patent/FI51114C/fi active
- 1970-10-01 SE SE13352/70A patent/SE354301B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3661698A (en) | 1972-05-09 |
| FI51114B (enrdf_load_html_response) | 1976-06-30 |
| FI51114C (fi) | 1976-10-11 |
| SE354301B (enrdf_load_html_response) | 1973-03-05 |
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