MX9701265A - Procedimiento para tratar una corriente acuosa de desechos de fluoruro de potasio y para convertir este fluoruro de potasio en fluoruro de hidrogeno e hidroxido de potasio. - Google Patents

Procedimiento para tratar una corriente acuosa de desechos de fluoruro de potasio y para convertir este fluoruro de potasio en fluoruro de hidrogeno e hidroxido de potasio.

Info

Publication number
MX9701265A
MX9701265A MX9701265A MX9701265A MX9701265A MX 9701265 A MX9701265 A MX 9701265A MX 9701265 A MX9701265 A MX 9701265A MX 9701265 A MX9701265 A MX 9701265A MX 9701265 A MX9701265 A MX 9701265A
Authority
MX
Mexico
Prior art keywords
waste stream
aqueous
koh
treating
converting
Prior art date
Application number
MX9701265A
Other languages
English (en)
Inventor
Somanahalli N Subbanna
Charles L Redmon
Jeff W Mckown
Robert A Smith
Yu-Chih Chiao
K N Mani
Original Assignee
Allied Signal 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 Allied Signal Inc filed Critical Allied Signal Inc
Publication of MX9701265A publication Critical patent/MX9701265A/es

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)

Abstract

La presente invencion se dirige a un proceso para tratar una corriente acuosa de desechos de KF, el cual comprende una etapa de tratamiento seleccionada del grupo que consta de la separacion de gas inerte de la corriente acuosa de desechos del KF, pasar esta corriente de desechos a través de un lecho de carbon, y concentrar la corriente de desechos, o una combinacion de ellas, para remover los compuestos orgánicos disueltos. La presente invencion también se dirige a someter la corriente de desechos de KF tratada al desdoblamiento electrodialítico en una celda de desdoblamiento del agua, para formar el HF y cualquiera del KOH o una corriente de sal agotada del ácido. El HF diluido se puede concentrar a un producto concentrado, viable comercialmente.
MX9701265A 1994-09-15 1995-09-13 Procedimiento para tratar una corriente acuosa de desechos de fluoruro de potasio y para convertir este fluoruro de potasio en fluoruro de hidrogeno e hidroxido de potasio. MX9701265A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30635994A 1994-09-15 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
MX9701265A true MX9701265A (es) 1997-05-31

Family

ID=23184946

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9701265A MX9701265A (es) 1994-09-15 1995-09-13 Procedimiento para tratar una corriente acuosa de desechos de fluoruro de potasio y para convertir este fluoruro de potasio en fluoruro de hidrogeno e hidroxido de potasio.

Country Status (4)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2845077A1 (fr) * 2002-09-26 2004-04-02 Atofina Procede d'abaissement de la teneur en matieres organiques et produits azotes contenus dans des effluents bromures

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 (ja) * 1987-11-18 1995-12-06 神鋼パンテック株式会社 金属イオンおよび油類を含有するアルカリ性のフッ化物廃液の処理方法
US4976946A (en) * 1990-02-09 1990-12-11 The Dow Chemical Company Separation of potassium salts
JP2995484B2 (ja) * 1990-04-24 1999-12-27 日本軽金属株式会社 有機フッ素化合物合成用無水フッ化カリウムの製造方法

Also Published As

Publication number Publication date
AU3587395A (en) 1996-03-29
WO1996008445A2 (en) 1996-03-21
WO1996008445A3 (en) 1996-07-11
CA2199723A1 (en) 1996-03-21

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