Trace-metal contamination control in sulfuric acid recycling systems
This research evaluates materials used in sulfuric acid recycling systems for their contribution to trace-metal contamination and degradation. By identifying corrosion-resistant materials, the study aims to enhance the purity and reliability of recycled acid systems.
Overview
Sulfuric acid recycling systems play a crucial role in various industrial applications, particularly in semiconductor manufacturing where ultra-high-purity acid is essential. This research focuses on understanding how materials used in these systems contribute to trace-metal contamination and degradation. By evaluating corrosion-resistant alloys, coated surfaces, and membrane materials, it aims to provide guidelines for selecting materials that minimize metal impurities and enhance the longevity and reliability of recycling systems.
Technical specifications
Key features:
- Systematic evaluation of materials under sulfuric acid conditions below 100°C
- Use of electrochemical testing and advanced surface characterization to assess material stability
- Identification of degradation mechanisms and trace-metal release
- Development of material-selection guidelines for contamination-resistant recycling systems
Technology readiness level
The project is currently at Technology Readiness Level 4, indicating that it has reached the stage of experimental evaluation in a laboratory setting. The research involves exposing candidate materials to controlled sulfuric acid environments and analyzing their performance to guide future development.
About Hofstra University
Hofstra University is a private, comprehensive university on Long Island that pairs broad academics with applied research and close ties to regional industry. Its integration with Northwell Health through co-located academic programs and clinical sites enables translational studies, access to patient populations, and clinician-scientist collaboration. The Fred DeMatteis School of Engineering and Applied Science runs a structured co-op program placing students with companies across Long Island and New York City, building pipelines for talent and joint problem-solving. Research is supported by competitive federal funding from agencies such as the National Institutes of Health and the National Science Foundation, with a dedicated technology transfer office facilitating IP, licensing, and industry-sponsored agreements.
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