AU3587395A - Process for treating an aqueous kf waste stream and for converting kf into hf and koh - Google Patents

Process for treating an aqueous kf waste stream and for converting kf into hf and koh

Info

Publication number
AU3587395A
AU3587395A AU35873/95A AU3587395A AU3587395A AU 3587395 A AU3587395 A AU 3587395A AU 35873/95 A AU35873/95 A AU 35873/95A AU 3587395 A AU3587395 A AU 3587395A AU 3587395 A AU3587395 A AU 3587395A
Authority
AU
Australia
Prior art keywords
koh
converting
treating
aqueous
waste stream
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU35873/95A
Inventor
Yu-Chih Chiao
Krishnamur N. Mani
Jeff W McKown
Charles L Redmon
Robert A. Smith
Somanahalli N Subbanna
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell International Inc
Original Assignee
AlliedSignal Inc
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 AlliedSignal Inc filed Critical AlliedSignal Inc
Publication of AU3587395A publication Critical patent/AU3587395A/en
Abandoned legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides
    • C01D1/28—Purification; Separation
    • C01D1/38—Purification; Separation by dialysis
    • 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
    • B01D61/445—Ion-selective electrodialysis with bipolar membranes; Water splitting
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/19—Fluorine; Hydrogen fluoride
    • C01B7/191—Hydrogen fluoride
    • C01B7/195—Separation; Purification
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00—Halides of sodium, potassium or alkali metals in general
    • C01D3/14—Purification
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00—Halides of sodium, potassium or alkali metals in general
    • C01D3/14—Purification
    • C01D3/16—Purification by precipitation or adsorption

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Water Supply & Treatment (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
AU35873/95A 1994-09-15 1995-09-13 Process for treating an aqueous kf waste stream and for converting kf into hf and koh Abandoned AU3587395A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US30635994A 1994-09-15 1994-09-15
US306359 1994-09-15
PCT/US1995/011584 WO1996008445A2 (en) 1994-09-15 1995-09-13 Process for treating an aqueous kf waste stream and for converting kf into hf and koh

Publications (1)

Publication Number Publication Date
AU3587395A true AU3587395A (en) 1996-03-29

Family

ID=23184946

Family Applications (1)

Application Number Title Priority Date Filing Date
AU35873/95A Abandoned AU3587395A (en) 1994-09-15 1995-09-13 Process for treating an aqueous kf waste stream and for converting kf into hf and koh

Country Status (4)

Country Link
AU (1) AU3587395A (en)
CA (1) CA2199723A1 (en)
MX (1) MX9701265A (en)
WO (1) WO1996008445A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2845077A1 (en) * 2002-09-26 2004-04-02 Atofina PROCESS FOR LOWERING THE CONTENT OF ORGANIC MATERIALS AND NITROGEN PRODUCTS CONTAINED IN BROMIDE EFFLUENTS

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787304A (en) * 1972-01-31 1974-01-22 Allied Chem Production of hf from fluorine by-products
US4713231A (en) * 1986-07-21 1987-12-15 The Dow Chemical Company Process for the recovery of ammonia and fluoride values from ammonium fluoride solutions
JPH07112559B2 (en) * 1987-11-18 1995-12-06 神鋼パンテック株式会社 Method for treating alkaline fluoride waste liquid containing metal ions and oils
US4976946A (en) * 1990-02-09 1990-12-11 The Dow Chemical Company Separation of potassium salts
JP2995484B2 (en) * 1990-04-24 1999-12-27 日本軽金属株式会社 Method for producing anhydrous potassium fluoride for synthesis of organofluorine compounds

Also Published As

Publication number Publication date
WO1996008445A2 (en) 1996-03-21
CA2199723A1 (en) 1996-03-21
WO1996008445A3 (en) 1996-07-11
MX9701265A (en) 1997-05-31

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