SE7603316L - PROCEDURE FOR RECYCLING SEWER SET SOLUTIONS - Google Patents

PROCEDURE FOR RECYCLING SEWER SET SOLUTIONS

Info

Publication number
SE7603316L
SE7603316L SE7603316A SE7603316A SE7603316L SE 7603316 L SE7603316 L SE 7603316L SE 7603316 A SE7603316 A SE 7603316A SE 7603316 A SE7603316 A SE 7603316A SE 7603316 L SE7603316 L SE 7603316L
Authority
SE
Sweden
Prior art keywords
fecl
etching solution
recycling
procedure
cucl
Prior art date
Application number
SE7603316A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
Vladimir Ilich Kucherenko
Valery Nikolaevich Flerov
Georgy Vladimirovich Korolev
Evgeny Pavlovich Kotov
Anatoly Mikhailovich Praporov
Galina Alexandrovna Batova
Gayane Leonovna Melikova
Alexandr Ivanovich Kolomeichuk
Original Assignee
Vladimir Ilich Kucherenko
Valery Nikolaevich Flerov
Georgy Vladimirovich Korolev
Evgeny Pavlovich Kotov
Anatoly Mikhailovich Praporov
Galina Alexandrovna Batova
Gayane Leonovna Melikova
Alexandr Ivanovich Kolomeichuk
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
Priority claimed from SU7502110221A external-priority patent/SU548051A1/en
Application filed by Vladimir Ilich Kucherenko, Valery Nikolaevich Flerov, Georgy Vladimirovich Korolev, Evgeny Pavlovich Kotov, Anatoly Mikhailovich Praporov, Galina Alexandrovna Batova, Gayane Leonovna Melikova, Alexandr Ivanovich Kolomeichuk filed Critical Vladimir Ilich Kucherenko
Publication of SE7603316L publication Critical patent/SE7603316L/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/46—Regeneration of etching compositions
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating
    • C25F7/02—Regeneration of process liquids

Abstract

1485605 Electrolytic regeneration of spent etching solution VI KUCHERENKO VN FLEROV GV KOROLEV EP KOTOV AM PRAPOROV GA BATOVA GL MELIKOVA and AI KOLOMEICHUK 17 March 1976 [17 March 1975 6 May 1975] 10781/76 Heading C7B Spent etching solution, e.g. used in obtaining printed-circuit patterns on Cu boards, containing in g.mol/l: 0À7-1À28 FeCl 3 , 0À30-0À45 FeCl 2 , 0À98- 1À5 CuCl 2 , 1À1-2À0 alkali metal Cl and 0À2-0À8 HCl, is regenerated by subjecting it to electrolysis with Cu being deposited at the cathode, and Fe<SP>++</SP> being oxidized to Fe<SP>+++</SP> and Cl 2 being liberated at the anode, the Cl 2 being used for additional oxidation of Fe<SP>++</SP> to Fe<SP>+++</SP>, to obtain an etching solution containing in g.mol/l: 0À9-1À4 FeCl 3 , 0À12-0À2 FeCl 2 , 0À9-1À4 CuCl 2 , 1À1-2À0 alkali metal Cl and 0À2-0À8 HCl. Preferably the etching solution is delivered to the anode in countercurrent to the Cl 2 liberated and at a linear speed at least 1À5 greater than that at which the solution is delivered to the cathode. The C.D. may be 8 to 20 A/dm<SP>2</SP>.
SE7603316A 1975-03-17 1976-03-16 PROCEDURE FOR RECYCLING SEWER SET SOLUTIONS SE7603316L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SU7502110221A SU548051A1 (en) 1975-03-17 1975-03-17 Method of regeneration of ferrumcopper-chloride etching solutions
SU2131975 1975-05-06

Publications (1)

Publication Number Publication Date
SE7603316L true SE7603316L (en) 1976-09-18

Family

ID=26665548

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7603316A SE7603316L (en) 1975-03-17 1976-03-16 PROCEDURE FOR RECYCLING SEWER SET SOLUTIONS

Country Status (3)

Country Link
FR (1) FR2304695A1 (en)
GB (1) GB1485605A (en)
SE (1) SE7603316L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4468305A (en) * 1979-05-08 1984-08-28 The Electricity Council Method for the electrolytic regeneration of etchants for metals
GB2131454B (en) * 1982-12-07 1986-06-25 Jury Ivanovich Naumov Process for regeneration of iron-copper chloride etching solution
US4604175A (en) * 1982-12-07 1986-08-05 Naumov Jury I Process for regeneration of iron-copper chloride etching solution

Also Published As

Publication number Publication date
FR2304695B1 (en) 1979-04-06
GB1485605A (en) 1977-09-14
FR2304695A1 (en) 1976-10-15

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