FI902675A - Foerfarande foer aotervinning av laegre alifatisk syra. - Google Patents
Foerfarande foer aotervinning av laegre alifatisk syra. Download PDFInfo
- Publication number
- FI902675A FI902675A FI902675A FI902675A FI902675A FI 902675 A FI902675 A FI 902675A FI 902675 A FI902675 A FI 902675A FI 902675 A FI902675 A FI 902675A FI 902675 A FI902675 A FI 902675A
- Authority
- FI
- Finland
- Prior art keywords
- laegre
- alifatisk
- syra
- foerfarande foer
- foer aotervinning
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
- C07C51/445—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by steam distillation
-
- 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
- D21C3/20—Pulping cellulose-containing materials with organic solvents or in solvent environment
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI902675A FI85510C (fi) | 1990-05-29 | 1990-05-29 | Foerfarande foer aotervinning av laegre alifatisk syra. |
PCT/FI1991/000168 WO1991018864A1 (en) | 1990-05-29 | 1991-05-28 | Process for the recovery of a lower aliphatic acid |
FR9106473A FR2665193A1 (fr) | 1990-05-29 | 1991-05-29 | Procede pour la recuperation d'acide 5 aliphatiques inferieurs a partir de pate a papier. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI902675A FI85510C (fi) | 1990-05-29 | 1990-05-29 | Foerfarande foer aotervinning av laegre alifatisk syra. |
FI902675 | 1990-05-29 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI902675A0 FI902675A0 (fi) | 1990-05-29 |
FI902675A true FI902675A (fi) | 1991-11-30 |
FI85510B FI85510B (fi) | 1992-01-15 |
FI85510C FI85510C (fi) | 1992-04-27 |
Family
ID=8530535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI902675A FI85510C (fi) | 1990-05-29 | 1990-05-29 | Foerfarande foer aotervinning av laegre alifatisk syra. |
Country Status (3)
Country | Link |
---|---|
FI (1) | FI85510C (fi) |
FR (1) | FR2665193A1 (fi) |
WO (1) | WO1991018864A1 (fi) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4228171C2 (de) * | 1992-08-25 | 1995-06-14 | Kaemmerer Projekt Agentur Gmbh | Verfahren zur Gewinnung von Zellstoffen |
FI95159C (fi) * | 1994-02-11 | 1995-12-27 | Valtion Teknillinen | Menetelmä ja laite selluloosakuitujen erottamiseksi ligniinistä |
DE19516151A1 (de) * | 1995-05-03 | 1996-11-07 | Sven Siegle | Verfahren zur Herstellung einer Pulpe aus zellulosehaltigem Material, die Pulpe selbst und deren Verwendung |
FI108233B (fi) * | 1997-08-22 | 2001-12-14 | Chempolis Oy | Menetelmä muurahaishapon talteenottamiseksi |
US11186950B2 (en) * | 2018-05-28 | 2021-11-30 | Pierson Capital Environmental (Beijing) Limited | Efficient methods and compositions for recovery of products from organic acid pretreatment of plant materials |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI52367C (fi) * | 1976-04-20 | 1977-08-10 | Rosenlew Ab Oy W | Menetelmä sellutuksessa syntyvien rikkiyhdisteiden, helposti haihtuvie n alkoholien ja tärpätin tai sen tapaisten talteenottamiseksi |
EP0065984A1 (en) * | 1980-12-05 | 1982-12-08 | JORDAN, Robert K. | Pulping in formic acid |
FI74498C (fi) * | 1984-12-07 | 1988-02-08 | Suomen Sokeri Oy | Foerfarande foer utvinning av alifatiska syror ur avlutar fraon alkaliska cellulosakok. |
-
1990
- 1990-05-29 FI FI902675A patent/FI85510C/fi active IP Right Grant
-
1991
- 1991-05-28 WO PCT/FI1991/000168 patent/WO1991018864A1/en unknown
- 1991-05-29 FR FR9106473A patent/FR2665193A1/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2665193A1 (fr) | 1992-01-31 |
FI902675A0 (fi) | 1990-05-29 |
FI85510B (fi) | 1992-01-15 |
WO1991018864A1 (en) | 1991-12-12 |
FI85510C (fi) | 1992-04-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Owner name: KEMIRA OY |