YU42097A - Process of cellulose boiling with b-constant on the base of mathematical model i - Google Patents
Process of cellulose boiling with b-constant on the base of mathematical model iInfo
- Publication number
- YU42097A YU42097A YU42097A YU42097A YU42097A YU 42097 A YU42097 A YU 42097A YU 42097 A YU42097 A YU 42097A YU 42097 A YU42097 A YU 42097A YU 42097 A YU42097 A YU 42097A
- Authority
- YU
- Yugoslavia
- Prior art keywords
- const
- mathematical model
- cooking
- alkali
- amount
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 6
- 238000013178 mathematical model Methods 0.000 title abstract 4
- 229920002678 cellulose Polymers 0.000 title abstract 2
- 239000001913 cellulose Substances 0.000 title abstract 2
- 238000009835 boiling Methods 0.000 title 1
- 239000003513 alkali Substances 0.000 abstract 4
- 238000010411 cooking Methods 0.000 abstract 4
- 239000013043 chemical agent Substances 0.000 abstract 1
- 229920005610 lignin Polymers 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 235000013311 vegetables Nutrition 0.000 abstract 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Paper (AREA)
Abstract
Pronalazak se odnosi na tehnologiju proizvodnje celuloze, proces kuvanja biljne sirovine - derivata, varijabilni parametrom odredjivanja količine hemijskog agensa. Proces kuvanja se vodi pomoću B - const. na osnovu matematičkog modela InL = InLo - B (In Co - In C) B - const. Na osnovu matematičkog modela i B - const. rešavamo postojeći problem tačnog definisanja količine aktivnih alkalija u procesu kuvanja. B - const. daje mogućnost odredjivanja ekvivalentne količine aktivnih alkalija u odnosu na lignin, kao varijabilni parametar u toku samog procesa. Metod može biti primenjen na kontinualan i diskontinualan način kuvanja. Kad je diskontinualan sistem (šematski prikaz) pad koncentracije alkalija u lugu (tgα po matematičkom modelu) meri se konduktometrijski poz (7), izmerene vrednosti odlaze u kontrolni sistem (9) gde se vrši komparacija izmedju zadanih i izmerenih vrednosti i daje impuls komandu automatskom ventilu (10) za doziranje luga kako bi se ostvarila zadana vrednost B - const.The invention relates to a technology for the production of cellulose, the process of cooking vegetable raw material - derivatives, variable parameter for determining the amount of chemical agent. The cooking process is conducted using B - const. based on the mathematical model InL = InLo - B (In Co - In C) B - const. Based on the mathematical model and B - const. we solve the existing problem of accurately defining the amount of active alkali in the cooking process. B - const. gives the possibility to determine the equivalent amount of active alkali with respect to lignin, as a variable parameter during the process. The method can be applied in a continuous and discontinuous way of cooking. When the discontinuous system (schematic representation) is the decrease of alkali concentration in alkali (tgα according to the mathematical model) the conductometric position (7) is measured, the measured values go to the control system (9) where the comparison between the set and the measured values is made and the impulse command is automatically valve (10) for alkaline dosing to achieve setpoint B - const.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| YUP-420/97A RS49842B (en) | 1997-10-24 | 1997-10-24 | CELLULOSE COOKING PROCEDURE WITH B-CONST. BASED ON MATHEMATICAL MODEL |
| PCT/YU1998/000006 WO1999022063A1 (en) | 1997-10-24 | 1998-03-16 | Cooking process for producing cellulose with b-constant based on a mathematical model |
| AU63482/98A AU6348298A (en) | 1997-10-24 | 1998-03-16 | Cooking process for producing cellulose with b-constant based on a mathematical model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| YUP-420/97A RS49842B (en) | 1997-10-24 | 1997-10-24 | CELLULOSE COOKING PROCEDURE WITH B-CONST. BASED ON MATHEMATICAL MODEL |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| YU42097A true YU42097A (en) | 2000-03-21 |
| RS49842B RS49842B (en) | 2008-08-07 |
Family
ID=25549848
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU6348298A (en) |
| RS (1) | RS49842B (en) |
| WO (1) | WO1999022063A1 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1922262A (en) * | 1930-10-31 | 1933-08-15 | Jr James H Ross | Process of making chemical pulp |
| US1949669A (en) * | 1932-06-20 | 1934-03-06 | Sldney D Wells | Apparatus for treating fibrous material |
-
1997
- 1997-10-24 RS YUP-420/97A patent/RS49842B/en unknown
-
1998
- 1998-03-16 WO PCT/YU1998/000006 patent/WO1999022063A1/en not_active Ceased
- 1998-03-16 AU AU63482/98A patent/AU6348298A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| AU6348298A (en) | 1999-05-17 |
| WO1999022063A1 (en) | 1999-05-06 |
| RS49842B (en) | 2008-08-07 |
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