FI902675A0 - Foerfarande foer aotervinning av laegre alifatisk syra. - Google Patents

Foerfarande foer aotervinning av laegre alifatisk syra.

Info

Publication number
FI902675A0
FI902675A0 FI902675A FI902675A FI902675A0 FI 902675 A0 FI902675 A0 FI 902675A0 FI 902675 A FI902675 A FI 902675A FI 902675 A FI902675 A FI 902675A FI 902675 A0 FI902675 A0 FI 902675A0
Authority
FI
Finland
Prior art keywords
laegre
alifatisk
syra
foerfarande foer
foer aotervinning
Prior art date
Application number
FI902675A
Other languages
English (en)
Other versions
FI902675A (fi
FI85510B (fi
FI85510C (fi
Inventor
Tapio Mattila
Kari Saari
Antti Vuori
Original Assignee
Kemira Oy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kemira Oy filed Critical Kemira Oy
Priority to FI902675A priority Critical patent/FI85510C/fi
Publication of FI902675A0 publication Critical patent/FI902675A0/fi
Priority to PCT/FI1991/000168 priority patent/WO1991018864A1/en
Priority to FR9106473A priority patent/FR2665193A1/fr
Publication of FI902675A publication Critical patent/FI902675A/fi
Publication of FI85510B publication Critical patent/FI85510B/fi
Application granted granted Critical
Publication of FI85510C publication Critical patent/FI85510C/fi

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)
FI902675A 1990-05-29 1990-05-29 Foerfarande foer aotervinning av laegre alifatisk syra. FI85510C (fi)

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 true FI902675A0 (fi) 1990-05-29
FI902675A 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)

* Cited by examiner, † Cited by third party
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
MX2020012737A (es) * 2018-05-28 2021-05-14 Pierson Capital Environmental Beijing Ltd Metodos y composiciones eficientes para la recuperacion de productos a partir de un pretratamiento de materiales vegetales con acidos organicos.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
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.

Also Published As

Publication number Publication date
FI902675A (fi) 1991-11-30
FI85510B (fi) 1992-01-15
WO1991018864A1 (en) 1991-12-12
FI85510C (fi) 1992-04-27
FR2665193A1 (fr) 1992-01-31

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Legal Events

Date Code Title Description
FG Patent granted

Owner name: KEMIRA OY