FI80732C - Apparat foer minskning av ligning i vedmassa. - Google Patents
Apparat foer minskning av ligning i vedmassa. Download PDFInfo
- Publication number
- FI80732C FI80732C FI843179A FI843179A FI80732C FI 80732 C FI80732 C FI 80732C FI 843179 A FI843179 A FI 843179A FI 843179 A FI843179 A FI 843179A FI 80732 C FI80732 C FI 80732C
- Authority
- FI
- Finland
- Prior art keywords
- gas
- container
- pulp
- retention
- temperature
- Prior art date
Links
- 229920001131 Pulp (paper) Polymers 0.000 title description 4
- 239000007789 gas Substances 0.000 claims description 128
- 229920005610 lignin Polymers 0.000 claims description 30
- 230000014759 maintenance of location Effects 0.000 claims description 28
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 22
- 239000001301 oxygen Substances 0.000 claims description 22
- 229910052760 oxygen Inorganic materials 0.000 claims description 22
- 230000009467 reduction Effects 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 14
- 229910001882 dioxygen Inorganic materials 0.000 claims 14
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 12
- 239000000126 substance Substances 0.000 description 11
- 238000007872 degassing Methods 0.000 description 8
- 230000004888 barrier function Effects 0.000 description 5
- 238000004061 bleaching Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000012495 reaction gas Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004076 pulp bleaching Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J15/00—Chemical processes in general for reacting gaseous media with non-particulate solids, e.g. sheet material; Apparatus specially adapted therefor
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00105—Controlling the temperature by indirect heating or cooling employing heat exchange fluids part or all of the reactants being heated or cooled outside the reactor while recycling
- B01J2219/00108—Controlling the temperature by indirect heating or cooling employing heat exchange fluids part or all of the reactants being heated or cooled outside the reactor while recycling involving reactant vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00164—Controlling or regulating processes controlling the flow
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US52222283A | 1983-08-11 | 1983-08-11 | |
| US52222283 | 1983-08-11 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| FI843179A0 FI843179A0 (fi) | 1984-08-10 |
| FI843179L FI843179L (fi) | 1985-02-12 |
| FI80732B FI80732B (fi) | 1990-03-30 |
| FI80732C true FI80732C (fi) | 1990-07-10 |
Family
ID=24079989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI843179A FI80732C (fi) | 1983-08-11 | 1984-08-10 | Apparat foer minskning av ligning i vedmassa. |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS6052694A (enrdf_load_stackoverflow) |
| CA (1) | CA1219733A (enrdf_load_stackoverflow) |
| DE (1) | DE3429563A1 (enrdf_load_stackoverflow) |
| FI (1) | FI80732C (enrdf_load_stackoverflow) |
| SE (1) | SE463030B (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19821311C1 (de) * | 1998-05-13 | 1999-10-07 | Voith Sulzer Papiertech Patent | Verfahren zur Bleiche von Papierfaserstoff |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3814664A (en) * | 1972-09-11 | 1974-06-04 | Improved Machinery Inc | Gaseous reaction apparatus including a peripheral gas receiving chamber |
| US3964962A (en) * | 1974-02-25 | 1976-06-22 | Ingersoll-Rand Company | Gaseous reaction apparatus and processes including a peripheral gas receiving chamber and a gas recirculation conduit |
-
1984
- 1984-07-23 CA CA000459498A patent/CA1219733A/en not_active Expired
- 1984-08-09 JP JP59165786A patent/JPS6052694A/ja active Granted
- 1984-08-10 FI FI843179A patent/FI80732C/fi not_active IP Right Cessation
- 1984-08-10 SE SE8404054A patent/SE463030B/sv not_active IP Right Cessation
- 1984-08-10 DE DE19843429563 patent/DE3429563A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE3429563C2 (enrdf_load_stackoverflow) | 1990-02-01 |
| JPS6052694A (ja) | 1985-03-25 |
| SE8404054D0 (sv) | 1984-08-10 |
| CA1219733A (en) | 1987-03-31 |
| JPS6261715B2 (enrdf_load_stackoverflow) | 1987-12-23 |
| FI843179A0 (fi) | 1984-08-10 |
| SE8404054L (sv) | 1985-02-12 |
| FI80732B (fi) | 1990-03-30 |
| SE463030B (sv) | 1990-10-01 |
| FI843179L (fi) | 1985-02-12 |
| DE3429563A1 (de) | 1985-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PC | Transfer of assignment of patent |
Owner name: BELOIT TECHNOLOGIES, INC. |
|
| MM | Patent lapsed |
Owner name: BELOIT TECHNOLOGIES, INC. |