Pilot Systems for Acid Applications

Mech-Chem fabricates pilot systems for developing and testing various processes and applications that need to safely handle hazardous acids.

The Pilot System Feature:

Self-contained reactor with sliding cover for easy access

Fume extraction and ventilation system

Chemical feed pumps with controllers

Containment for acid and chemicals

Heavy duty welded polypropylene construction

Polypropylene, PFA, and PVDF piping

Process Development Applications include  the following:

Metal dissolving

Metal extraction

Carbon treatment

Acid Etching/ Pickling

Chemical/ Acid Milling

Chemical manufacturing

Waste/Wastewater Treatment

CONTACT US TODAY:

Mech-Chem Associates, Inc.

P.O. Box 473

144 Main St Norfolk, MA 02056

Tele: (508) 528-5990

Fax: (508) 528-8972

Email: [email protected]

www.mech-chem.com

Electrodialysis Lab Test Unit

Mech-Chem offers Electrodialysis lab test units for the testing and verification for the following  application:

Applications:
Removal of Salt Brine from Water.
Concentration of Metal Salts from Dragout and Rinses for Recycling
to Plating Baths.
Salt Maintenance on
Fume Scrubbing Systems
Electroless Nickel Purifications

Description:

Electrodialysis is an electrically driven ion-exchange process which utilizes alternating sequences of cation exchange membranes and anion exchange membranes to effect the separation andconcentration of dissolved salts from various solutions. Selectively permeable ions are transported from one side of a membrane, through the membrane, to the other side of the membrane. These salts are concentrated, collected, and removed from the unit.

With the proper selection and configuration of permselective membranes between a positively charged, inert anode, and a negatively charged cathode, electric deionization is accomplished. Such a configuration of membranes, hydraulic spacers, and electrodes is termed an Electrodialysis stack.

An Electrodialysis system is comprised of an Electrodialysis stack, circulation pumps, solution holding tanks, a power supply, pressure gauges and ancillary controls. Optional controls may also include particulate filters and conductivity control.

CONTACT US TODAY:

Mech-Chem Associates, Inc.

P.O. Box 473

144 Main St Norfolk, MA 02056

Tele: (508) 528-5990

Fax: (508) 528-8972

Email: [email protected]

www.mech-chem.com

AP-300 Acid Recovery System

Mech-Chem Associates, Inc. has refined and improved their AP-300 series Acid Recovery System.

The AP-300 system can process and purify 300/gal/day of spent or waste acid solution. The new design allows the system to be expanded to 600/gal/day and 900/gal/day by the addition of 1 or 2 additional diffusion dialysis membrane stacks.

This membrane technology is used for acid recovery applications such as plating baths, anodizing baths, acid pickling and metal finishing applications.

With new emphasis on cost reduction and green technologies, these membrane systems are also
finding new applications for recovering and purifying spent or waste acid streams in mining applications and battery acid recovery.

Advantages of Acid Recycling

Increase acid bath life
Maintain optimum bath uniformity
Reduce acid purchases
Reduce waste treatment costs
Reduce hazardous waste disposal costs

Front Side View:

Back-Side View:

CONTACT US TODAY:

Mech-Chem Associates, Inc.

P.O. Box 473

144 Main St Norfolk, MA 02056

Tele: (508) 528-5990

Fax: (508) 528-8972

Email: [email protected]

www.mech-chem.com

Acid Filtration System

Closed filtration system for filtering nitric and sulfuric acids. Filter has passivated metal surface with polypropylene filters coated with diatomaceous earth for removal of fine carbon and metal particles.

The chemical piping is fused Kynar pipe and fittings. The unique feature is that the system can be operated, drained, and rinsed without chemical exposure to the operation personnel.

CONTACT US TODAY:

Mech-Chem Associates, Inc.

P.O. Box 473

144 Main St Norfolk, MA 02056

Tele: (508) 528-5990

Fax: (508) 528-8972

Email: [email protected]

www.mech-chem.com

Acid Recovery by Diffusion Dialysis

Mech-Chem Associates Inc. has made their AP-300 series Acid Recovery Systems expandable.

The AP-300 systems which process and purify 300gal/day of spent or waste acid systems can be expanded to 600gal/day (as pictured) and 900gal/day by the addition of 1 or 2 diffusion dialysis membrane stacks.

The Acid Recovery Systems use the same feed module and process controller.

This membrane technology is used for acid recovery applications such as plating baths, anodizing baths, acid pickling and metal finishing applications.

With the emphasis on cost reduction and green technologies, these membrane systems are finding new applications for recovering and purifying spent or waste acid streams in mining applications and battery acid recovery.

CONTACT US TODAY:

Mech-Chem Associates, Inc.

P.O. Box 473

144 Main St Norfolk, MA 02056

Tele: (508) 528-5990

Fax: (508) 528-8972

Email: [email protected]

www.mech-chem.com