FI902675A - FOERFARANDE FOER AOTERVINNING AV LAEGRE ALIFATISK SYRA. - Google Patents

FOERFARANDE FOER AOTERVINNING AV LAEGRE ALIFATISK SYRA. Download PDF

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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
Application number
FI902675A
Other languages
Finnish (fi)
Other versions
FI902675A0 (en
FI85510B (en
FI85510C (en
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/en
Publication of FI902675A0 publication Critical patent/FI902675A0/en
Priority to PCT/FI1991/000168 priority patent/WO1991018864A1/en
Priority to FR9106473A priority patent/FR2665193A1/en
Publication of FI902675A publication Critical patent/FI902675A/en
Publication of FI85510B publication Critical patent/FI85510B/en
Application granted granted Critical
Publication of FI85510C publication Critical patent/FI85510C/en

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 Process for recovery of lower aliphatic acid FI85510C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI902675A FI85510C (en) 1990-05-29 1990-05-29 Process for recovery of lower aliphatic acid
PCT/FI1991/000168 WO1991018864A1 (en) 1990-05-29 1991-05-28 Process for the recovery of a lower aliphatic acid
FR9106473A FR2665193A1 (en) 1990-05-29 1991-05-29 PROCESS FOR THE RECOVERY OF LOWER ALIPHATIC ACID FROM PULP.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI902675A FI85510C (en) 1990-05-29 1990-05-29 Process for recovery of lower aliphatic acid
FI902675 1990-05-29

Publications (4)

Publication Number Publication Date
FI902675A0 FI902675A0 (en) 1990-05-29
FI902675A true FI902675A (en) 1991-11-30
FI85510B FI85510B (en) 1992-01-15
FI85510C FI85510C (en) 1992-04-27

Family

ID=8530535

Family Applications (1)

Application Number Title Priority Date Filing Date
FI902675A FI85510C (en) 1990-05-29 1990-05-29 Process for recovery of lower aliphatic acid

Country Status (3)

Country Link
FI (1) FI85510C (en)
FR (1) FR2665193A1 (en)
WO (1) WO1991018864A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4228171C2 (en) * 1992-08-25 1995-06-14 Kaemmerer Projekt Agentur Gmbh Process for the production of cellulose
FI95159C (en) * 1994-02-11 1995-12-27 Valtion Teknillinen Method and apparatus for separating cellulosic fibers from lignin
DE19516151A1 (en) * 1995-05-03 1996-11-07 Sven Siegle Process for the production of a pulp from cellulosic material, the pulp itself and its use
FI108233B (en) * 1997-08-22 2001-12-14 Chempolis Oy Procedure for recovery of formic acid
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI52367C (en) * 1976-04-20 1977-08-10 Rosenlew Ab Oy W Method for recovering sulfur compounds, volatile alcohols and turpentine or the like from pulping
EP0065984A1 (en) * 1980-12-05 1982-12-08 JORDAN, Robert K. Pulping in formic acid
FI74498C (en) * 1984-12-07 1988-02-08 Suomen Sokeri Oy Process for the recovery of aliphatic acids from liquids from alkaline α cellulose boil.

Also Published As

Publication number Publication date
FR2665193A1 (en) 1992-01-31
FI902675A0 (en) 1990-05-29
FI85510B (en) 1992-01-15
WO1991018864A1 (en) 1991-12-12
FI85510C (en) 1992-04-27

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Legal Events

Date Code Title Description
FG Patent granted

Owner name: KEMIRA OY