FR2396118A1 - Procede de recyclage pour papeterie - Google Patents
Procede de recyclage pour papeterieInfo
- Publication number
- FR2396118A1 FR2396118A1 FR7738611A FR7738611A FR2396118A1 FR 2396118 A1 FR2396118 A1 FR 2396118A1 FR 7738611 A FR7738611 A FR 7738611A FR 7738611 A FR7738611 A FR 7738611A FR 2396118 A1 FR2396118 A1 FR 2396118A1
- Authority
- FR
- France
- Prior art keywords
- liquor
- cycle
- green
- digester
- chlorine dioxide
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000004064 recycling Methods 0.000 title 1
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 abstract 8
- 239000004155 Chlorine dioxide Substances 0.000 abstract 4
- 235000019398 chlorine dioxide Nutrition 0.000 abstract 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 3
- 239000011780 sodium chloride Substances 0.000 abstract 3
- 238000004174 sulfur cycle Methods 0.000 abstract 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 238000004061 bleaching Methods 0.000 abstract 2
- 239000006227 byproduct Substances 0.000 abstract 2
- 238000002386 leaching Methods 0.000 abstract 2
- 235000011149 sulphuric acid Nutrition 0.000 abstract 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 abstract 1
- 239000007832 Na2SO4 Substances 0.000 abstract 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract 1
- 235000011152 sodium sulphate Nutrition 0.000 abstract 1
- 239000002699 waste material Substances 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
- D21C11/0071—Treatment of green or white liquors with gases, e.g. with carbon dioxide for carbonation; Expulsion of gaseous compounds, e.g. hydrogen sulfide, from these liquors by this treatment (stripping); Optional separation of solid compounds formed in the liquors by this treatment
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/02—Oxides of chlorine
- C01B11/022—Chlorine dioxide (ClO2)
- C01B11/023—Preparation from chlorites or chlorates
- C01B11/025—Preparation from chlorites or chlorates from chlorates without any other reaction reducing agent than chloride ions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
- C01D7/07—Preparation from the hydroxides
-
- 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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Materials For Medical Uses (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75365676A | 1976-12-22 | 1976-12-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2396118A1 true FR2396118A1 (fr) | 1979-01-26 |
| FR2396118B1 FR2396118B1 (enrdf_load_stackoverflow) | 1983-01-14 |
Family
ID=25031593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7738611A Granted FR2396118A1 (fr) | 1976-12-22 | 1977-12-21 | Procede de recyclage pour papeterie |
Country Status (12)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE8204266L (sv) * | 1982-07-12 | 1984-01-13 | Korsnaes Marma Ab | Forfarande for teckande av kemikalieforlusterna vid massaframstellning |
| FI77064C (fi) * | 1985-04-29 | 1989-01-10 | Tampella Oy Ab | Foerfarande foer kokning och blekning av cellulosa. |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1455076A (fr) * | 1964-04-02 | 1966-04-01 | A & W Overseas Dev Ltd | Procédé de fabrication de pâte blanchie et produit obtenu |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS503801A (enrdf_load_stackoverflow) * | 1973-05-21 | 1975-01-16 | ||
| JPS5013361A (enrdf_load_stackoverflow) * | 1973-06-07 | 1975-02-12 |
-
1977
- 1977-12-13 NZ NZ185958A patent/NZ185958A/xx unknown
- 1977-12-16 AU AU31669/77A patent/AU510914B2/en not_active Expired
- 1977-12-16 MX MX171803A patent/MX148348A/es unknown
- 1977-12-19 NO NO774357A patent/NO774357L/no unknown
- 1977-12-20 FI FI773860A patent/FI67243C/fi not_active IP Right Cessation
- 1977-12-20 JP JP15426577A patent/JPS5381703A/ja active Pending
- 1977-12-21 BR BR7708509A patent/BR7708509A/pt unknown
- 1977-12-21 SE SE7714601A patent/SE435304B/sv unknown
- 1977-12-21 FR FR7738611A patent/FR2396118A1/fr active Granted
- 1977-12-22 DE DE2757474A patent/DE2757474C3/de not_active Expired
- 1977-12-22 SU SU772558158A patent/SU934912A3/ru active
- 1977-12-22 PT PT67443A patent/PT67443B/pt unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1455076A (fr) * | 1964-04-02 | 1966-04-01 | A & W Overseas Dev Ltd | Procédé de fabrication de pâte blanchie et produit obtenu |
Non-Patent Citations (1)
| Title |
|---|
| EXBK/63 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FI773860A7 (fi) | 1978-06-23 |
| FI67243C (fi) | 1985-02-11 |
| MX148348A (es) | 1983-04-14 |
| JPS5381703A (en) | 1978-07-19 |
| SE435304B (sv) | 1984-09-17 |
| SU934912A3 (ru) | 1982-06-07 |
| AU3166977A (en) | 1979-06-21 |
| DE2757474C3 (de) | 1980-06-19 |
| PT67443B (en) | 1979-05-23 |
| FI67243B (fi) | 1984-10-31 |
| SE7714601L (sv) | 1978-06-23 |
| NO774357L (no) | 1978-06-23 |
| FR2396118B1 (enrdf_load_stackoverflow) | 1983-01-14 |
| PT67443A (en) | 1978-01-01 |
| DE2757474B2 (de) | 1979-09-13 |
| AU510914B2 (en) | 1980-07-17 |
| BR7708509A (pt) | 1978-09-05 |
| DE2757474A1 (de) | 1978-06-29 |
| NZ185958A (en) | 1979-11-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property | ||
| ST | Notification of lapse |