JPH0244957B2 - - Google Patents
Info
- Publication number
- JPH0244957B2 JPH0244957B2 JP57034512A JP3451282A JPH0244957B2 JP H0244957 B2 JPH0244957 B2 JP H0244957B2 JP 57034512 A JP57034512 A JP 57034512A JP 3451282 A JP3451282 A JP 3451282A JP H0244957 B2 JPH0244957 B2 JP H0244957B2
- Authority
- JP
- Japan
- Prior art keywords
- digester
- liquid
- liquor
- temperature
- accumulator
- 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 - Lifetime
Links
- 239000007788 liquid Substances 0.000 claims description 106
- 238000000034 method Methods 0.000 claims description 61
- 230000008569 process Effects 0.000 claims description 40
- 238000010411 cooking Methods 0.000 claims description 36
- 238000010025 steaming Methods 0.000 claims description 32
- 239000000706 filtrate Substances 0.000 claims description 26
- 239000002023 wood Substances 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 16
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000005406 washing Methods 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 10
- 238000011282 treatment Methods 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 6
- 229920002678 cellulose Polymers 0.000 claims description 6
- 238000003860 storage Methods 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 9
- 230000008901 benefit Effects 0.000 description 8
- 239000000126 substance Substances 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000010923 batch production Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 239000012295 chemical reaction liquid Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- -1 i.e. Substances 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 150000003464 sulfur compounds Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
-
- 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
- D21C3/00—Pulping cellulose-containing materials
-
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
-
- 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
- D21C7/00—Digesters
- D21C7/14—Means for circulating the lye
Landscapes
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24080481A | 1981-03-05 | 1981-03-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57176282A JPS57176282A (en) | 1982-10-29 |
| JPH0244957B2 true JPH0244957B2 (es) | 1990-10-05 |
Family
ID=22908014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57034512A Granted JPS57176282A (en) | 1981-03-05 | 1982-03-04 | Cooking of cellulose material |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS57176282A (es) |
| BR (1) | BR8201145A (es) |
| CA (1) | CA1179807A (es) |
| FI (1) | FI79724C (es) |
| SE (1) | SE463267B (es) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117302A (en) * | 1974-08-02 | 1976-02-12 | Suzano Papel & Celulose | Arukaryoekinyori senizairyoodatsuriguninsuruhoho oyobi sochi |
| JPS5259702A (en) * | 1975-10-24 | 1977-05-17 | Cp Associates Ltd | Process for pulping with solvents |
-
1982
- 1982-02-24 CA CA000396961A patent/CA1179807A/en not_active Expired
- 1982-02-25 FI FI820643A patent/FI79724C/fi not_active IP Right Cessation
- 1982-03-04 SE SE8201334A patent/SE463267B/sv not_active Application Discontinuation
- 1982-03-04 BR BR8201145A patent/BR8201145A/pt not_active IP Right Cessation
- 1982-03-04 JP JP57034512A patent/JPS57176282A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117302A (en) * | 1974-08-02 | 1976-02-12 | Suzano Papel & Celulose | Arukaryoekinyori senizairyoodatsuriguninsuruhoho oyobi sochi |
| JPS5259702A (en) * | 1975-10-24 | 1977-05-17 | Cp Associates Ltd | Process for pulping with solvents |
Also Published As
| Publication number | Publication date |
|---|---|
| SE463267B (sv) | 1990-10-29 |
| CA1179807A (en) | 1984-12-27 |
| JPS57176282A (en) | 1982-10-29 |
| FI79724B (fi) | 1989-10-31 |
| FI820643L (fi) | 1982-09-06 |
| SE8201334L (sv) | 1982-09-06 |
| FI79724C (fi) | 1992-12-29 |
| BR8201145A (pt) | 1983-01-11 |
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