FR2177975A1 - Paper pulp waste liquor - purified and chemicals recycled - Google Patents
Paper pulp waste liquor - purified and chemicals recycledInfo
- Publication number
- FR2177975A1 FR2177975A1 FR7310739A FR7310739A FR2177975A1 FR 2177975 A1 FR2177975 A1 FR 2177975A1 FR 7310739 A FR7310739 A FR 7310739A FR 7310739 A FR7310739 A FR 7310739A FR 2177975 A1 FR2177975 A1 FR 2177975A1
- Authority
- FR
- France
- Prior art keywords
- opt
- paper pulp
- chemicals
- recycled
- purified
- 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
- 229920001131 Pulp (paper) Polymers 0.000 title abstract 2
- 239000000126 substance Substances 0.000 title abstract 2
- 239000002699 waste material Substances 0.000 title 1
- 238000002485 combustion reaction Methods 0.000 abstract 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract 2
- 235000012254 magnesium hydroxide Nutrition 0.000 abstract 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract 2
- 239000000347 magnesium hydroxide Substances 0.000 abstract 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- 235000011114 ammonium hydroxide Nutrition 0.000 abstract 1
- 238000011084 recovery Methods 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye
-
- 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
Landscapes
- Paper (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3018472A JPS5611796B2 (enExample) | 1972-03-25 | 1972-03-25 | |
| JP3018572A JPS5611797B2 (enExample) | 1972-03-25 | 1972-03-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2177975A1 true FR2177975A1 (en) | 1973-11-09 |
| FR2177975B1 FR2177975B1 (enExample) | 1976-04-09 |
Family
ID=26368492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7310739A Granted FR2177975A1 (en) | 1972-03-25 | 1973-03-26 | Paper pulp waste liquor - purified and chemicals recycled |
Country Status (4)
| Country | Link |
|---|---|
| CA (1) | CA982306A (enExample) |
| FI (1) | FI62357C (enExample) |
| FR (1) | FR2177975A1 (enExample) |
| SE (1) | SE404045B (enExample) |
-
1973
- 1973-03-19 FI FI84573A patent/FI62357C/fi active
- 1973-03-23 SE SE7304119A patent/SE404045B/xx unknown
- 1973-03-23 CA CA167,287A patent/CA982306A/en not_active Expired
- 1973-03-26 FR FR7310739A patent/FR2177975A1/fr active Granted
Non-Patent Citations (1)
| Title |
|---|
| NEANT * |
Also Published As
| Publication number | Publication date |
|---|---|
| FI62357C (fi) | 1982-12-10 |
| SE404045B (sv) | 1978-09-18 |
| FI62357B (fi) | 1982-08-31 |
| FR2177975B1 (enExample) | 1976-04-09 |
| CA982306A (en) | 1976-01-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property | ||
| ST | Notification of lapse |