SE9402349L - Process for the manufacture of potassium formate III - Google Patents

Process for the manufacture of potassium formate III

Info

Publication number
SE9402349L
SE9402349L SE9402349A SE9402349A SE9402349L SE 9402349 L SE9402349 L SE 9402349L SE 9402349 A SE9402349 A SE 9402349A SE 9402349 A SE9402349 A SE 9402349A SE 9402349 L SE9402349 L SE 9402349L
Authority
SE
Sweden
Prior art keywords
aqueous solution
anion
potassium formate
membranes
concentrated aqueous
Prior art date
Application number
SE9402349A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9402349D0 (en
SE517708C2 (en
Inventor
Thomas Andersson
Original Assignee
Perstorp Ab
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 Perstorp Ab filed Critical Perstorp Ab
Priority to SE9402349A priority Critical patent/SE517708C2/en
Publication of SE9402349D0 publication Critical patent/SE9402349D0/en
Priority to AU29401/95A priority patent/AU2940195A/en
Priority to PCT/SE1995/000727 priority patent/WO1996001250A1/en
Publication of SE9402349L publication Critical patent/SE9402349L/en
Publication of SE517708C2 publication Critical patent/SE517708C2/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
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
    • C07C53/02—Formic acid
    • C07C53/06—Salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

A process for making potassium formate, whereby potassium formate yields from an electrodialysis device comprising at least one electrodialysis unit divided into four compartments by alternating cation and anion membranes, at least one anode and at least one cathode. The electrodialysis unit comprises three anion and two cation membranes. The membranes are arranged parallel with an anion membrane closest to both the anode and the cathode. A concentrated aqueous solution of a potassium salt is introduced into a first compartment, a diluted aqueous solution of a sodium salt into a fourth and a concentrated aqueous solution of sodium formate into a third. A concentrated aqueous solution of potassium formate is recovered from the second compartment and a concentrated aqueous solution of a sodium salt from the fourth. The recovered solutions result from an ion exchange through the anion and cation membranes.
SE9402349A 1994-07-04 1994-07-04 Process for the preparation of potassium formate III SE517708C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9402349A SE517708C2 (en) 1994-07-04 1994-07-04 Process for the preparation of potassium formate III
AU29401/95A AU2940195A (en) 1994-07-04 1995-06-16 A process (iii) for making potassium formate
PCT/SE1995/000727 WO1996001250A1 (en) 1994-07-04 1995-06-16 A process (iii) for making potassium formate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9402349A SE517708C2 (en) 1994-07-04 1994-07-04 Process for the preparation of potassium formate III

Publications (3)

Publication Number Publication Date
SE9402349D0 SE9402349D0 (en) 1994-07-04
SE9402349L true SE9402349L (en) 1996-01-05
SE517708C2 SE517708C2 (en) 2002-07-09

Family

ID=20394613

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9402349A SE517708C2 (en) 1994-07-04 1994-07-04 Process for the preparation of potassium formate III

Country Status (3)

Country Link
AU (1) AU2940195A (en)
SE (1) SE517708C2 (en)
WO (1) WO1996001250A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9625939D0 (en) * 1996-12-13 1997-01-29 Petroline Wireline Services Expandable tubing
FI107381B (en) 1998-09-25 2001-07-31 Kemira Chemicals Oy Process for the preparation of potassium formate
KR101794843B1 (en) * 2016-03-29 2017-11-07 (주)테크윈 electrolysis system and electrolysis method using the electrolysis system
CN106693710A (en) * 2017-01-19 2017-05-24 浙江大维高新技术股份有限公司 Electrodialyzer and solution treating method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779883A (en) * 1972-11-03 1973-12-18 Sybron Corp Pentaerythritol purification process
SE8601772L (en) * 1986-04-18 1987-10-19 Perstorp Ab SET FOR MANUFACTURING A POLYAL ALCOHOL

Also Published As

Publication number Publication date
AU2940195A (en) 1996-01-25
SE9402349D0 (en) 1994-07-04
WO1996001250A1 (en) 1996-01-18
SE517708C2 (en) 2002-07-09

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Legal Events

Date Code Title Description
NUG Patent has lapsed