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Hire Seyed Mohammad R.

United States

USD 20 /hr

Expert in Chemical Engineering

Profile Summary

I am a PhD-level chemical engineer with over 15 years of research and industry experience in thermodynamics, separation processes, process modeling, and hydrometallurgy. I have a proven track record of delivering high-quality scientific and technical solutions, including the development of accurate thermodynamic models, solvent extraction optimization, and simulation of complex chemical processes using MATLAB, Aspen HYSYS, and Aspen Plus. My areas of expertise include: Thermodynamic modeling of phase equilibria Chemical process simulation and optimization Hydrometallurgy and solvent extraction Surface chemistry and suspension rheology Scientific writing, technical editing, and research consulting I am open to remote, contract, or consulting projects and offer clear communication, timely delivery, and deep scientific insight.

Subject Matter Expertise

• ☆ Catalysis
• ☆ Materials Science & Engineering
• ☆ Biopolymers
• ☆ Polymer Chemistry
• ☆ Metallurgy
• ☆ Engineering Thermodynamics/Thermophysical Engineering
• ☆ Chemical Engineering
• ☆ Chemical Manufacturing
• ☆ Process Chemistry
• ☆ Reactor Design
• ☆ Heat Transfer & Calorimetry
• ☆ Environmental Engineering and Technology
• ☆ Environmental Science
• ☆ Pollution Control & Waste Management
• ☆ Hazardous Waste Management
• ☆ Thermodynamics
• ☆ Process Engineering

Services

• Writing
• Research
• Consulting
• Data & AI
• Product Development

Writing Technical Writing, Copywriting, General Proofreading & Editing

Research Feasibility Study, Fact Checking, Gray Literature Search, Scientific and Technical Research, Systematic Literature Review, Secondary Data Collection

Consulting Scientific and Technical Consulting, Manufacturing Consulting

Data & AI Predictive Modeling, Statistical Analysis

Product Development Formulation, Manufacturing

Work Experience

Chemical Engineer and Researcher

Self-employed

July 2022 - Present

Senior Chemical Engineer and Researcher

Science and Technology Research Institute

November 2011 - July 2022

Education

Ph.D. in Chemical Engineering

Tarbiat Modares University

September 2013 - September 2018

M.Sc. in Chemical Engineering

Sharif University of Technology

September 2008 - January 2011

B.Sc. in Chemical Engineering

Amirkabir University of Technology

September 2004 - September 2008

Certifications

• Design & Preparation of PFD and P&ID Documents

  Science and Technology Research Institute

  November 2021 - Present

• Feasibility Study of Research Projects

  Science and Technology Research Institute

  May 2021 - Present

• Design of Experiments (DOE)

  Science and Technology Research Institute

  June 2014 - Present

Publications

JOURNAL ARTICLE

Razavi, S.M., Haghtalab, A., Khanchi, A.R.(2021). Optimization of vanadium(V) extraction by 2-ethyl-1-hexanol and the study of extraction reaction mechanism . Minerals Engineering. 170.

Razavi, S.M.(2021). A new NRTL-based local composition model for thermodynamic modeling of electrolyte solutions . Journal of Chemical Thermodynamics. 161.

Razavi, S.M., Ahmadi, S.J., Rahmani Cherati, P., Hadi, M., Ahmadi, S.A.R.(2020). Effect of electron beam irradiation on mechanical properties of unsaturated polyester/nanoclay composites reinforced with carbon and glass fibers . Mechanics of Materials. 141.

Razavi, S.M., Haghtalab, A., Khanchi, A.R.(2019). An Electrolyte Non-random-UNIQUAC Model for Thermodynamic Modeling of Binary and Multicomponent Aqueous Electrolyte Systems . Journal of Solution Chemistry. 48. (5). p. 624-657.

Razavi, S.M., Haghtalab, A., Khanchi, A.R.(2018). Thermodynamic modeling of the solvent extraction equilibrium for the recovery of vanadium (V) from acidic sulfate solutions using Di-(2-ethylhexyl) phosphoric acid . Fluid Phase Equilibria. 474. p. 20-31.

Bagheri, K., Razavi, S.M., Ahmadi, S.J., Kosari, M., Abolghasemi, H.(2018). Thermal resistance, tensile properties, and gamma radiation shielding performance of unsaturated polyester/nanoclay/PbO composites . Radiation Physics and Chemistry. 146. p. 5-10.

Kosari, M., Mousavian, S.M.A., Razavi, S.M., Ahmadi, S.J., Izadipanah, M.(2017). Polyurethane/clay nanocomposites reinforced with carbon and glass fibres: study of mechanical and thermal properties, and the effect of electron beam irradiation . Plastics, Rubber and Composites. 46. (9). p. 413-420.

Razavi, S.M., Haghtalab, A., Khanchi, A.R.(2017). Solvent extraction and selective separation of vanadium (V) from an acidic sulfate solution using 2-Ethyl-1-Hexanol . Separation and Purification Technology. 188. p. 358-366.

Salehoon, E., Ahmadi, S.J., Razavi, S.M., Parvin, N.(2017). Thermal and corrosion resistance properties of unsaturated polyester/clay nanocomposites and the effect of electron beam irradiation . Polymer Bulletin. 74. (5). p. 1629-1647.

Razavi, S.M., Dehghanpour, N., Ahmadi, S.J., Rajabi Hamaneh, M.(2015). Thermal, mechanical, and corrosion resistance properties of vinyl ester/clay nanocomposites for the matrix of carbon fiber-reinforced composites exposed to electron beam . Journal of Applied Polymer Science. 132. (33).

Razavi, S.M., Ahmadi, S.J., Rahmani Cherati, P.(2014). Effect of Acidic and Basic Solutions on Electron Beam Irradiated Epoxy Nanocomposites Containing Nanoclay, CaCO₃ and TiO₂ Nanoparticles . Journal of Inorganic and Organometallic Polymers and Materials. 24. (4). p. 745-752.

Razavi, S.M., Dadbin, S., Frounchi, M.(2014). Effect of gamma ray on poly(lactic acid)/poly(vinyl acetate-co-vinyl alcohol) blends as biodegradable food packaging films . Radiation Physics and Chemistry. 96. p. 12-18.

Razavi, S.M., Dadbin, S., Frounchi, M.(2012). Oxygen-barrier properties of poly(lactic acid)/poly(vinyl acetate-co-vinyl alcohol) blends as biodegradable films . Journal of Applied Polymer Science. 125. (SUPPL. 2).