BE726812A - - Google Patents

Info

Publication number
BE726812A
BE726812A BE726812A BE726812A BE726812A BE 726812 A BE726812 A BE 726812A BE 726812 A BE726812 A BE 726812A BE 726812 A BE726812 A BE 726812A BE 726812 A BE726812 A BE 726812A
Authority
BE
Belgium
Prior art keywords
chlorate
solution
chromium
alkali metal
hexavalent chromium
Prior art date
Application number
BE726812A
Other languages
English (en)
French (fr)
Inventor
John A Peterson
Theodore H Dexter
Original Assignee
Hooker Chemical Corp
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 Hooker Chemical Corp filed Critical Hooker Chemical Corp
Publication of BE726812A publication Critical patent/BE726812A/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F3/00—Electrolytic etching or polishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
    • B23H3/08—Working media

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Chemical Treatment Of Metals (AREA)
BE726812A 1968-01-15 1969-01-13 BE726812A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69759568A 1968-01-15 1968-01-15

Publications (1)

Publication Number Publication Date
BE726812A true BE726812A (de) 1969-07-14

Family

ID=24801741

Family Applications (1)

Application Number Title Priority Date Filing Date
BE726812A BE726812A (de) 1968-01-15 1969-01-13

Country Status (6)

Country Link
US (1) US3616344A (de)
BE (1) BE726812A (de)
DE (1) DE1900996A1 (de)
FR (1) FR2000237A1 (de)
GB (1) GB1252691A (de)
NL (1) NL6900681A (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718555A (en) * 1971-02-22 1973-02-27 Gen Motors Corp Electrochemical machining electrolyte
BE794070A (fr) * 1972-01-20 1973-07-16 Hooker Chemical Corp Procede d'elimination du chrome hexavalent dans des liqueurs contenant un chlorate
US4159407A (en) * 1974-03-23 1979-06-26 Rolls-Royce (1971) Limited Methods and apparatus for electrically machining a work piece
US4048283A (en) * 1976-06-04 1977-09-13 The Dow Chemical Company Removal of heavy metals from aqueous solutions
US4086150A (en) * 1977-06-27 1978-04-25 Huron Chemicals Limited Chromate removal by precipitation
US5427692A (en) * 1993-11-29 1995-06-27 General Electric Company Removal of chromium from solution using ferrous sulfate and barium nitrate
TW576825B (en) 2000-08-10 2004-02-21 Iner Ae Method for liquid chromate ion and oxy-metal ions removal and stabilization
WO2002059049A1 (en) * 2001-01-26 2002-08-01 A.S. Incorporated Water treatment method for reducing levels of cr?+6¿
US6833124B2 (en) * 2002-01-31 2004-12-21 University Of Dayton Recovery process for wastes containing hexavalent chromium
US10399166B2 (en) 2015-10-30 2019-09-03 General Electric Company System and method for machining workpiece of lattice structure and article machined therefrom
US10759680B2 (en) 2016-05-17 2020-09-01 Uop Llc Preferential removal of hexavalent chromium from contaminated water

Also Published As

Publication number Publication date
DE1900996A1 (de) 1969-11-06
NL6900681A (de) 1969-07-17
GB1252691A (de) 1971-11-10
FR2000237A1 (de) 1969-09-05
US3616344A (en) 1971-10-26

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