SE8701955D0 - PROCEDURE FOR CONCENTRATION OF WATER SOLUTIONS OF ALCOHOLS MEDIUM PERVAPORATION - Google Patents

PROCEDURE FOR CONCENTRATION OF WATER SOLUTIONS OF ALCOHOLS MEDIUM PERVAPORATION

Info

Publication number
SE8701955D0
SE8701955D0 SE8701955A SE8701955A SE8701955D0 SE 8701955 D0 SE8701955 D0 SE 8701955D0 SE 8701955 A SE8701955 A SE 8701955A SE 8701955 A SE8701955 A SE 8701955A SE 8701955 D0 SE8701955 D0 SE 8701955D0
Authority
SE
Sweden
Prior art keywords
pervaporation
concentration
procedure
membrane
water solutions
Prior art date
Application number
SE8701955A
Other languages
Swedish (sv)
Other versions
SE8701955L (en
Inventor
A Ahvenainen
J-F Selin
K Savolainen
J Seppele
Original Assignee
Neste 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 Neste Oy filed Critical Neste Oy
Publication of SE8701955D0 publication Critical patent/SE8701955D0/en
Publication of SE8701955L publication Critical patent/SE8701955L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/36—Pervaporation; Membrane distillation; Liquid permeation
    • B01D61/362—Pervaporation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/08—Polysaccharides
    • B01D71/12—Cellulose derivatives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

In a process for concentrating an aqueous solution of an alcohol by pervaporation technique, that is by conducting the alcoholic solution onto one side (14a) of a semipermeable membrane (20) located in an enclosed space (14) and by removing from the other side (14b) of the membrane vaporizing permeate which has diffused through the membrane (20) and which is of changed alcohol concentration, the semipermeate membrane (20) is formed of cellulose carbamate. <IMAGE>
SE8701955A 1986-05-14 1987-05-13 PROCEDURE FOR CONCENTRATION OF WATER SOLUTIONS OF ALCOHOLS MEDIUM PERVAPORATION SE8701955L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI862028A FI73960C (en) 1986-05-14 1986-05-14 Process for concentrating aqueous solutions of alcohols by evaporation

Publications (2)

Publication Number Publication Date
SE8701955D0 true SE8701955D0 (en) 1987-05-13
SE8701955L SE8701955L (en) 1987-11-15

Family

ID=8522615

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8701955A SE8701955L (en) 1986-05-14 1987-05-13 PROCEDURE FOR CONCENTRATION OF WATER SOLUTIONS OF ALCOHOLS MEDIUM PERVAPORATION

Country Status (13)

Country Link
JP (1) JPS6328409A (en)
BR (1) BR8702463A (en)
CS (1) CS268179B2 (en)
DD (1) DD265332A5 (en)
DE (1) DE3714784A1 (en)
FI (1) FI73960C (en)
FR (1) FR2600906B1 (en)
GB (1) GB2194465B (en)
IN (1) IN166625B (en)
IT (1) IT1215483B (en)
NO (1) NO162813C (en)
SE (1) SE8701955L (en)
ZA (1) ZA873094B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4410243C1 (en) * 1994-03-24 1995-06-29 Carbone Ag Combined pervaporation-vapour permeation process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140256A (en) * 1957-09-30 1964-07-07 Standard Oil Co Separation process
FI66624C (en) * 1983-11-02 1984-11-12 Neste Oy FOERFARANDE FOER FRAMSTAELLNING AV CELLULOSAKARBAMATFIBRER ELLER -FILMER
EP0146655B1 (en) * 1983-12-14 1989-08-02 The Dow Chemical Company A process for separating mixtures of water and an organic compoundand a water-selective permeation membrane

Also Published As

Publication number Publication date
GB2194465B (en) 1990-05-23
IN166625B (en) 1990-06-23
FR2600906A1 (en) 1988-01-08
SE8701955L (en) 1987-11-15
GB8711184D0 (en) 1987-06-17
NO871899D0 (en) 1987-05-07
CS334587A2 (en) 1989-04-14
CS268179B2 (en) 1990-03-14
ZA873094B (en) 1987-10-26
BR8702463A (en) 1988-02-23
FI73960C (en) 1987-12-10
JPS6328409A (en) 1988-02-06
NO162813C (en) 1990-02-21
IT1215483B (en) 1990-02-14
DD265332A5 (en) 1989-03-01
FR2600906B1 (en) 1989-12-29
NO162813B (en) 1989-11-13
NO871899L (en) 1987-11-16
FI73960B (en) 1987-08-31
FI862028A0 (en) 1986-05-14
GB2194465A (en) 1988-03-09
DE3714784A1 (en) 1987-11-19
IT8720496A0 (en) 1987-05-13

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