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"Innovative, Engineered Solutions"​

DESIGN | ENGINEERING | FABRICATION | INSTALLATION
Learn About Acid Recovery...

Acid Distillation & Fractionation Columns
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System Overview
System Benefits
System Examples
Design Engineer ​Install

 

Distillation System Overview


Distillation systems are designed for the purpose of providing fractionation of contaminated and mixed acid waste solutions to produce higher purity recovered acids, i.e. water removal, removal of trace impurities and more efficient acid separation.
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Distillation systems can purify, concentrate, and recover a variety of acids and mixed acid solutions including hydrochloric acid (HCl), hydrofluoric acid (HF), nitric acid (HNO3), and sulfuric acid (H2SO4). In addition, these systems are more effective at processing, separating and recovering mixed acid solutions.
​Acid evaporation and distillation systems can provide several different functions such as acid separation, concentration and purification. The evaporation and fractionation of mixed acid solutions include the following applications:
  • Water Removal for Acid Concentration
  • Fractional Distillation of Mixed Acid Solutions
  • Acid Purification for Removal of Dissolved Materials
  • High Purity Acid Production (electronic)

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Distillation Brochures
Distillation Case Studies

 

Benefits of Distillation


Of the many options to recover waste or spent acids from manufacturing and metal extraction operations, acid distillation is unique as it can recover and purify the acid while minimizing waste. Acid recovery using distillation can provide a “green technology” with an acceptable Return On Investment.

Acid recovery provides the following benefits:
  • Return On Investment (ROI)
  • Reduce Raw Material Costs
  • Reduce Waste Disposal Costs
  • Reduced Shipping Costs
  • Reduced Liability for Transport
  • Reduced Storage Requirements
  • Up to 95% Waste Reduction
Mech-Chem engineers and designs the complete system including integration between the acid recovery equipment and the production operations. The materials of construction for the heat exchangers include graphite, Hastelloy & tantalum. The separators, piping and valves are fabricated using stainless steel, inconel, glass & PTFE lined steel equipment and components. 
Mixed acid fractionation system that produces a high purity acid distillation of one acid component using a thermal circulating evaporator with fractionation column. 

Mech-Chem Associates, Inc. provides a variety of acid evaporation and distillation system. System range in size from 10 GPH to 1,000 GPH Unit.
 

Distillation System Examples


Aircraft Component Manufacturing

Aerospace manufacturers strip the imperfectly-coated and refurbished aircraft components using hydrochloric (HCL) acid so a new metallic coating can be applied.

The stripping process produces a contaminated acid solution that requires frequent changing and disposal resulting in higher costs for system shutdown, off-site disposal and new HCL acid purchases.

Mech-Chem’s acid recovery systems utilize a distillation column that recovers the spent hydrochloric acid and returns it as a clean distilled acid to the strip line.

The system is designed to operate continuously, 24 hours a day, 7 days a week producing a 16% to 20% high purity distilled HCl acid.

​Continuous operation of the system is achievable using advanced instrumentation and automation technology that is integrated into a PLC with PC interface.  
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Acid Distillation Column

Thermal Circulating Systems

Mech-Chem designs, fabricates, and installs a variety of acid distillation and fractionation systems for waste acid recovery and chemical processing applications.

The distillation system features a thermal circulating evaporator with a fractionation column that contains a Teflon packing.

The materials of construction varies depending on the specific acid evaporation and distillation application. Materials of construction for the distillation units include stainless steel, inconel, Hastelloy, PTFE lined steel, and glass lined steel.

​The materials of construction for the heat exchangers include stainless steel, inconel, Hastelloy, tantalum, ceramic and carbon graphite.

The evaporation and distillation systems are fully instrumented for automated control using a PLC with PC interface.
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Acid Distillation Seperation
 

Design, Engineer, & Installation


Knowledge of Acids – Mech-Chem has designed, engineered, built, and installed recovery and reclamation systems for nitric, hydrochloric, hydrofluoric, fluoroboric, methane sulfonic, sulfuric acids and mixtures of these acids. Mech-Chem has also designed, engineered, built, and installed the chemical storage, piping systems, and processes that are part of an overall acid process.

​Knowledge of Regulations and Safety Codes – When dealing with highly corrosive materials, such as waste acid solutions, it is important for all equipment and systems to be in regulatory compliance and meet your company's safety guidelines. Mech-Chem’s systems meet OSHA and EPA requirements by utilizing NEMA 4X wiring and controls to handle corrosive environments.
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Knowledge of Materials of Construction – The key to a successful acid recovery system is choosing the proper materials of construction. The right materials will provide the corrosion resistance that is necessary to provide for safe, efficient operation of the system. Mech-Chem has the experience and knowledge necessary to select the proper materials of construction, based on the specific acid and its concentration in the waste solution, and effectively use the selected material, both technically and cost-wise, in our designs.

Knowledge of CE Certification – Mech-Chem can fabricate and certify all our units to meet European standards (CE Certification).  

​Installation

Mech-Chem Associates, Inc. is a full-service engineering firm specializing in the design, engineering and construction of manufacturing facilities, operating processes, and environmental control systems. This wide range of experience gives us the ability to fully integrate an acid recovery system into your manufacturing operation.

Equipment

Equipment and components are at the heart of a successful and efficient system. Mech-Chem Associates, Inc. has extensive knowledge of chemistry and manufacturing systems which ensures equipment and components will operate seamlessly over the lifetime of the process.

Design

Mech-Chem Associates, Inc. can provide custom engineered and designed acid recovery system for your application.

We know that acid recovery is a complex process which requires custom engineering and design to allow the system to be integrated into your current operations and become a part of your basic plant operations. Proper system integration is a critical step in ensuring the operational and financial success of the system

Implementation

The engineering and design surrounding an acid recovery system involves selecting and integrating the best available technology with a facility’s other areas of operations such as:
  • Bulk Storage
  • Piping Systems
  • Production Operations
  • PLC/PC Control Systems
  • System Integration
  • Recovery Technology

Mech-Chem Associates Inc. has extensive experience in dealing with aggressive chemicals and acids making us familiar with the chemistry and product quality issues which direct the design of our systems. Our knowledge and expertise in this area make Mech-Chem the best choice to properly integrate an acid recovery system into your operations.

More information about our capabilities in these areas is available at our main web site
www.mech-chem.com

Need Assistance Or Have Questions?

Contact Us Today!

Contact Info:

144 Main St. Norfolk, MA 02056
​Office: (508) 528-5990
Fax: (508) 528-8972
​Email: 
acidrecovery@mech-chem.com
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Mech-Chem Associates, Inc. is a full service engineering and design firm that specializes in the manufacturing and construction of chemical operations facilities & acid recovery systems.

​Reach out to Mech-Chem Associates, Inc. today for all your engineering and acid recovery needs.
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​mech-chem.com | fumescrubber.us 

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