DE2505004A1 - Verfahren zur erhoehung von ausbeute und viskositaet des cellulosebreis bei der stoffaufbereitung von cellulose enthaltenden materialien - Google Patents
Verfahren zur erhoehung von ausbeute und viskositaet des cellulosebreis bei der stoffaufbereitung von cellulose enthaltenden materialienInfo
- Publication number
- DE2505004A1 DE2505004A1 DE19752505004 DE2505004A DE2505004A1 DE 2505004 A1 DE2505004 A1 DE 2505004A1 DE 19752505004 DE19752505004 DE 19752505004 DE 2505004 A DE2505004 A DE 2505004A DE 2505004 A1 DE2505004 A1 DE 2505004A1
- Authority
- DE
- Germany
- Prior art keywords
- cellulose
- cyanide
- yield
- soda
- viscosity
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 82
- 229920002678 cellulose Polymers 0.000 title claims description 47
- 239000001913 cellulose Substances 0.000 title claims description 47
- 239000000463 material Substances 0.000 title claims description 13
- 238000002360 preparation method Methods 0.000 title claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- 239000002023 wood Substances 0.000 claims description 26
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims description 25
- 239000001301 oxygen Substances 0.000 claims description 19
- 229910052760 oxygen Inorganic materials 0.000 claims description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 16
- 239000000243 solution Substances 0.000 claims description 14
- 239000012670 alkaline solution Substances 0.000 claims description 8
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 2
- 229910052979 sodium sulfide Inorganic materials 0.000 claims description 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims 2
- 239000002253 acid Substances 0.000 claims 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 31
- 239000003513 alkali Substances 0.000 description 19
- 239000002655 kraft paper Substances 0.000 description 17
- 230000029087 digestion Effects 0.000 description 14
- 238000010411 cooking Methods 0.000 description 13
- 238000002419 base digestion Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 229920005610 lignin Polymers 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- MNWBNISUBARLIT-UHFFFAOYSA-N sodium cyanide Chemical compound [Na+].N#[C-] MNWBNISUBARLIT-UHFFFAOYSA-N 0.000 description 3
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000004676 glycans Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920001282 polysaccharide Polymers 0.000 description 2
- 239000005017 polysaccharide Substances 0.000 description 2
- -1 sodium cyanide Chemical class 0.000 description 2
- HYHCSLBZRBJJCH-UHFFFAOYSA-N sodium polysulfide Chemical compound [Na+].S HYHCSLBZRBJJCH-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- 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 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
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- QKSIFUGZHOUETI-UHFFFAOYSA-N copper;azane Chemical class N.N.N.N.[Cu+2] QKSIFUGZHOUETI-UHFFFAOYSA-N 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- NNFCIKHAZHQZJG-UHFFFAOYSA-N potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 description 1
- UAJUXJSXCLUTNU-UHFFFAOYSA-N pranlukast Chemical compound C=1C=C(OCCCCC=2C=CC=CC=2)C=CC=1C(=O)NC(C=1)=CC=C(C(C=2)=O)C=1OC=2C=1N=NNN=1 UAJUXJSXCLUTNU-UHFFFAOYSA-N 0.000 description 1
- 229960004583 pranlukast Drugs 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003381 stabilizer 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 |
|---|---|---|---|
| US49673474A | 1974-08-12 | 1974-08-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2505004A1 true DE2505004A1 (de) | 1976-02-26 |
Family
ID=23973900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752505004 Pending DE2505004A1 (de) | 1974-08-12 | 1975-02-06 | Verfahren zur erhoehung von ausbeute und viskositaet des cellulosebreis bei der stoffaufbereitung von cellulose enthaltenden materialien |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5126303A (enrdf_load_stackoverflow) |
| CA (1) | CA1050212A (enrdf_load_stackoverflow) |
| DE (1) | DE2505004A1 (enrdf_load_stackoverflow) |
| FI (1) | FI750314A7 (enrdf_load_stackoverflow) |
| FR (1) | FR2282017A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1501456A (enrdf_load_stackoverflow) |
| IT (1) | IT1027406B (enrdf_load_stackoverflow) |
| NO (1) | NO750369L (enrdf_load_stackoverflow) |
| SE (1) | SE7501239L (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61167292U (enrdf_load_stackoverflow) * | 1986-03-20 | 1986-10-17 |
-
1974
- 1974-09-17 CA CA209,440A patent/CA1050212A/en not_active Expired
-
1975
- 1975-01-29 IT IT67214/75A patent/IT1027406B/it active
- 1975-02-05 FI FI750314A patent/FI750314A7/fi not_active Application Discontinuation
- 1975-02-05 NO NO750369A patent/NO750369L/no unknown
- 1975-02-05 SE SE7501239A patent/SE7501239L/xx unknown
- 1975-02-06 FR FR7503747A patent/FR2282017A1/fr not_active Withdrawn
- 1975-02-06 DE DE19752505004 patent/DE2505004A1/de active Pending
- 1975-02-06 GB GB5048/75A patent/GB1501456A/en not_active Expired
- 1975-02-06 JP JP50015846A patent/JPS5126303A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| SE7501239L (sv) | 1976-02-13 |
| JPS5126303A (enrdf_load_stackoverflow) | 1976-03-04 |
| GB1501456A (en) | 1978-02-15 |
| FR2282017A1 (fr) | 1976-03-12 |
| NO750369L (enrdf_load_stackoverflow) | 1976-02-13 |
| FI750314A7 (enrdf_load_stackoverflow) | 1976-02-13 |
| IT1027406B (it) | 1978-11-20 |
| CA1050212A (en) | 1979-03-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHJ | Non-payment of the annual fee |