FR2163151A5 - Cooked lye prodn from wood extract - for use in mfr of sulphate paste - Google Patents
Cooked lye prodn from wood extract - for use in mfr of sulphate pasteInfo
- Publication number
- FR2163151A5 FR2163151A5 FR7242455A FR7242455A FR2163151A5 FR 2163151 A5 FR2163151 A5 FR 2163151A5 FR 7242455 A FR7242455 A FR 7242455A FR 7242455 A FR7242455 A FR 7242455A FR 2163151 A5 FR2163151 A5 FR 2163151A5
- Authority
- FR
- France
- Prior art keywords
- lye
- prodn
- mfr
- cooked
- mixt
- 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
Links
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title 1
- 229910021653 sulphate ion Inorganic materials 0.000 title 1
- 239000002023 wood Substances 0.000 title 1
- 150000003839 salts Chemical class 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 2
- 229910052979 sodium sulfide Inorganic materials 0.000 abstract 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 abstract 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 1
- 238000004880 explosion Methods 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
- D21C11/0035—Introduction of compounds, e.g. sodium sulfate, into the cycle in order to compensate for the losses of pulping agents
Landscapes
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1718584A SU405992A1 (ru) | 1971-11-29 | 1971-11-29 | Способ регенерации сульфатного «черного» щелока |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2163151A5 true FR2163151A5 (en) | 1973-07-20 |
Family
ID=20494286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7242455A Expired FR2163151A5 (en) | 1971-11-29 | 1972-11-29 | Cooked lye prodn from wood extract - for use in mfr of sulphate paste |
Country Status (4)
| Country | Link |
|---|---|
| CA (1) | CA980064A (oth) |
| CS (1) | CS166941B1 (oth) |
| FR (1) | FR2163151A5 (oth) |
| SU (1) | SU405992A1 (oth) |
-
1971
- 1971-11-29 SU SU1718584A patent/SU405992A1/ru active
-
1972
- 1972-10-31 CA CA155,311A patent/CA980064A/en not_active Expired
- 1972-11-28 CS CS810572A patent/CS166941B1/cs unknown
- 1972-11-29 FR FR7242455A patent/FR2163151A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SU405992A1 (ru) | 1973-11-05 |
| CS166941B1 (oth) | 1976-03-29 |
| CA980064A (en) | 1975-12-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |