CH356470A - Verfahren zur Behandlung von Sulfitablauge - Google Patents
Verfahren zur Behandlung von SulfitablaugeInfo
- Publication number
- CH356470A CH356470A CH356470DA CH356470A CH 356470 A CH356470 A CH 356470A CH 356470D A CH356470D A CH 356470DA CH 356470 A CH356470 A CH 356470A
- Authority
- CH
- Switzerland
- Prior art keywords
- treatment
- waste liquor
- sulphite waste
- sulphite
- liquor
- Prior art date
Links
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 title 1
- 239000002699 waste material Substances 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D307/40—Radicals substituted by oxygen atoms
- C07D307/46—Doubly bound oxygen atoms, or two oxygen atoms singly bound to the same carbon atom
- C07D307/48—Furfural
- C07D307/50—Preparation from natural products
-
- 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
- D21C11/10—Concentrating spent liquor by evaporation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH356470T | 1957-09-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH356470A true CH356470A (de) | 1961-08-31 |
Family
ID=4511215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH356470D CH356470A (de) | 1957-09-06 | 1957-09-06 | Verfahren zur Behandlung von Sulfitablauge |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH356470A (enrdf_load_html_response) |
| DE (1) | DE1072466B (enrdf_load_html_response) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT376717B (de) * | 1983-05-02 | 1984-12-27 | Chemiefaser Lenzing Ag | Verfahren zur gewinnung von furfurol aus sauren abwaessern der zellstoffgewinnung sowie anlage zur durchfuehrung des verfahrens |
-
0
- DE DENDAT1072466D patent/DE1072466B/de active Pending
-
1957
- 1957-09-06 CH CH356470D patent/CH356470A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1072466B (enrdf_load_html_response) | 1959-12-31 |
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