cupric chloride etchant electrolytic recovery system


Welcome to Oxford V.U.E., Inc.

Vis-U-Etch Cupric Chloride Etcher Controller Home. About Oxford. Products. Technical Info. News Letters. Contact Us. International. Oxford V.U.E., Inc. 11711 Clark St., Ste 108 Arcadia, CA 91006 USA ph.(626) 256-6557 fax(626) 256-6567 : VUE-FERRIC® BREAKTHROUGH TECHNOLOGY FOR TRUE FERRIC CHLORIDE BASED ETCHANT REGENERATION

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ELECTROLYTIC REGENERATION OF ACID CUPRIC CHLORIDE …

I. SUMMARY The overall objective of this ERIP program was to make substantial progress in further developing a process for electrolytic regeneration of acid cupric chloride etchant - a process which was initially demonstrated in in-house studies and EPA Phase I and Phase 11 SBIRs. Specific objectives of the work were: (1) to define optimum system operating conditions by

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Waste Minimization In The Printed Circuit Board Industry ...

Facility B uses a slower acting etchant (sodium chloride, sodium chlorate, and muriatic acid) which etches copper from the board, and yields cupric chloride in the waste stream. Facility B uses a rather unique end- of-pipe treatment system employing SBH treatment and ultrafiltration (Memtek) technology for solids separation.

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Etchant Recovery System | SBIR.gov

Cupric chloride and ammoniacal etchants are used to remove unwanted copper from printed circuit boards. They are used in a continuous "bleed and feed" mode, which leads to the formation of a hazardous copper-containing waste. This waste material must be hauled from the site for disposal. In addition, cupric chloride etchant requires the use ...

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Recovery of Copper from Strong Chloride-based Solution

ABSTRACT. Strong chloride-based copper solutions were investigated for copper recovery by using aluminium scraps. From the recovery process, the reaction rate is consistently to be first order to cupric ion. The activation energy for the process calculated from the Arrhenius plot indicates a chemical controlled process.

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Etchant | Hackaday

Jan 25, 2018· Posted in chemistry hacks, Misc Hacks Tagged copper chloride, cupric chloride, etch, etchant, pcb "Machining" Copper Parts Using Cupric Chloride March …

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Cupric Chloride Etchant Electrolytic Recovery System ...

Cupric Chloride Etchant Electrolytic Recovery System that continuously recovers copper from the cupric chloride etchant is linked directly to the production line. The amount of chemicals and waste etchant are greatly reduced by this system. Enables continuous recovery of the cupric chloride etchant by electrolytic process. Reduces amount of ...

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SiliNax | Products | NITTETSU MINING CO.,LTD. R&D Department

Cupric Chloride Etchant Electrolytic Recovery System; PLASMA DASH® ...

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Minimizing Plating Bath Wastes - tandfonline.com

etchant baths. The principle components of the acid copper electroplating baths are copper sulfate and sulfuric acid. Fa^ cility B uses a slow acting etchant (so-dium chloride, sodium chlorate, and muriatic acid) which etches copper from the board, and yields cupric chlo-ride in the waste stream. June 1987 Volume 37, No. 6 725

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Norma Technology - Solucare

The Acidic Etching Recovery System is a set of fully enclosed, high-tech and environmental friendly system free of waste water,waste gas or waste product discharge. Connected to the etching machine, the system works on an automatic cycle, ensuring stable etching result while it …

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Environmental PCB Etchant: Updating the PCB Manufacturing ...

Sep 09, 2019· In addition to the etchant, many manufacturers supplement etchants with chemical additives to achieve better etching characteristics. For example, the addition of ammonium chloride, monomethanol amine, ethanol, acetonitrile, acetone, or dimethylformamide to cupric chloride produces a better etching rate and increases the amount of dissolved copper.

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Process and apparatus for treating copper chloride etching ...

Mar 23, 1993· Abstract of EP0574113 A copper chloride etching waste liquor is treated by a process comprising exposing the etching waste liquor to an atmosphere of 400 to 1,200 DEG C to generate cupric oxide and hydrogen chloride, separating and collecting the cupric oxide, dissolving the hydrogen chloride into water, and collecting the resulting hydrochloric acid, and an apparatus suitable for the …

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Extraction of tetrahedral CuCl anode from the waste copper ...

Aug 07, 2021· Oxley JE (1995) Electrolytic regeneration of acid cupric chloride etchant, US Patent US5421966A 19. Yang Q, Kocherginsky N (2006) Copper recovery and spent ammoniacal etchant regeneration based on hollow fiber supported liquid membrane technology: from …

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US3784455A - Methods of electrolytic regenerative etching ...

Methods and apparatus are disclosed for electrolytically recovering metal from an electrolyte and/or an etchant on specially constructed and configured cathodes. The metal deposits advantageously may be subsequently removed from the cathodes with no mechanical or chemical cathodic stripping operation being required. In a more specific application, the invention relates to a continuous cupric ...

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Cupric Chloride Etchant Copper Recovery System

Cupric Chloride Etchant Copper Recovery System Opportunity Statement Copper etching is an important process in the fabrication of printed circuit boards. The etchants commonly used in the industry today are cupric chloride, ferric chloride and alkaline etchants. Cupric chloride is rapidly becoming the etchant of choice because of its stable ...

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Purification And Treatment Of Electroplating Baths And ...

Feb 14, 1997· Abstract: An electrolytic apparatus and process for the on-line regeneration of acid cupric chloride etching baths used in printed circuit board fabrication is described. The apparatus utilizes a regeneration process which exactly reverses the reaction Cu+CuCl.sub.2 .fwdarw.2CuCl in order that the copper metal etched into the system is ...

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TECHNICAL INFORMATION BULLETIN 8 - Chemcut

Cupric Chloride Etching Introduction Cupric chloride as the main etchant for panels using non-metallic resists began to become common in the late 60's to early 70's. Ferric chloride was the most common etchant for non-metallic resists panels up until then because of its fast etch rate and high metal holding capacity.

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Etchant Recovery System | SBIR.gov

The proposed system will also be considerably less costly per ounce of copper etched. The proposed system will not require membranes, sice it doe not require the separation of anolyte and catholyte. We have already developed and electrolytic device for the regeneration of ferric chloride etchant, which is widely used in the photochemical ...

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TURI - TURI - Toxics Use Reduction Institute

Cupric chloride etchants produce finer details than ammoniacal etchants, and can be regenerated using an electrolytic process. Cupric chloride etchants also have a "holding" capacity of1.5 pounds ofcopper per gallon. Tri-Starmade the decision to use two etchants: ammonium hydroxide for outer layer processes and cupric chloride etch to

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Products – Centurion Speciality Chemicals Ltd

OXFORD VUE CUPRIC CHLORIDE CONTROLLER. Almost zero acid provides maximum fine line etching capabilities. Over 200 installations provides testament to the ease of use of this system. Uses patented light transmission method which does not require frequent recalibration as some other machines that use O.R.P. Normality and specific gravity.

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IMPROVED INNER LAYER ETCHING BY SIMULTANEOUS …

CUPRIC REGENERATION & COPPER RECOVERY SYSTEM ELECTROLYTIC REGENERATION •Electrolysis is the action of producing chemical changes by passing an electric current through an electrolyte. The cupric chloride in this case is the electrolyte. •The process is achieved by the use of a divided cell containing an anode in one compartment and a

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Etchants for Copper and Alloys - Steel Data

Silicon brass or bronze - Chemical etching - General macrostructure. Struer's D-2 etchant - Copper and copper alloys - Electrolytic etching. Tint etch of Lienard and Pacque's - For Cu-Al alloys. Vilella's etchant - Cu-Pb alloys - Chemical etching.

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Excess Etchant Reduction and Copper Recovery Process for ...

Sep 02, 2021· Approximately 15 million gallons of excess acid cupric chloride etchant are generated each year and this amount is growing 12-15% annually. This project concerns an innovative, electrolytic, recovery process that reduces excess etchant generation by 53% for acid cupric chloride etchers who use chemical regeneration.

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