greenchemistry
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8/10/2019 Greenchemistry
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Professor Hector R RodriguezSchool of BusinessMount Ida College
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Course Map – Topics Covered in Course• Society
– The Corporation and Its Stakeholders
– People for the Ethical Treatment of Animals – Corporate Citizenship – The Social Responsibility of Business – The Shareholder Primacy Norm – CSR, Citizenship and Sustainability Reporting – Responsible Investing – The Community and the Corporation – Taxation and Corporate Citizenship – Corporate Philanthropy Programs – Employees and the Corporation – Managing a Diverse Workforce
• Environment – A Balanced Look at Climate Change
– Non-anthropogenic Causes of Climate Change – Sulfates, Urban Warming and Permafrost – Conventional Energy – The Kyoto Protocol – Green Building – Green Information Technology – Transportation, Electric Vehicles and the
Environment – Geo-Engineering – Carbon Capture and Storage – Renewable Energy – Solid, Toxic and Hazardous Waste – Forests, Paper and Carbon Sinks – Life Cycle Analysis – Green Chemistry – Water Use and Management – Water Pollution – Management Systems
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• It represents a major paradigm shift that focuses on
environmental protection at the design stage of product andmanufacturing processes. – It is an innovative way to deal with chemicals before they become
hazards, with the goal of making chemicals and products ―benignby design.
– For example, if the chemical synthesis is not compromised, whichof the two chemicals below should we use?
Source: California Green Chemistry Initiative: (2008)
Why Green Chemistry?
OR
Carcinogenic non-Carcinogenic
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• Green chemistry is
an opportunity to spurthe next industrialrevolution throughhuman ingenuity and
creativity.• Advancing green
chemistry is anopportunity to make asafer and moreefficient world withless waste.
Green Chemistry Benefits
Source: California Green Chemistry Initiative: (2008)
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Green Chemistry Principles
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The 12 Principles of Green Chemistry
1. Prevention
– It is better to prevent waste than to treat or clean up waste afterit has been created.
2. Atom Economy – Synthetic methods should be designed to maximise the
incorporation of all materials used in the process into the finalproduct.
3. Less Hazardous Chemical Synthesis – Wherever practicable, synthetic methods should be designed
to use and generate substances that possess little or no toxicityto people or the environment.
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The 12 Principles of Green Chemistry
7. Design for Degradation
– Chemical products should be designed so that at the end oftheir function they break down into innocuous degradationproducts and do not persist in the environment.
8. Real-time Analysis for Pollution Prevention – Analytical methodologies need to be further developed to allow
for real-time, in-process monitoring and control prior to theformation of hazardous substances.
9. Inherently Safer Chemistry for Accident Prevention – Substances and the form of a substance used in a chemical
process should be chosen to minimise the potential forchemical accidents, including releases, explosions, and fires.
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The 12 Principles of Green Chemistry
10. Use of Renewable Feed stocks
– A raw material or feedstock should be renewable rather thandepleting whenever technically and economically practicable.
11. Reduce Derivatives – Unnecessary derivatization (use of blocking groups,
protection/de-protection, and temporary modification ofphysical/chemical processes) should be minimised or avoided ifpossible, because such steps require additional reagents andcan generate waste.
12. Catalysis – Catalytic reagents (as selective as possible) are superior to
stoichiometric reagents.
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How it Fits in the Sustainability Framework
Green chemistry relies upon lifecycle thinking to bring their
concepts to fruition; it serves to achieve the ultimate goal of asustainable economy and society.
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Green Chemistry at Work
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Green Chemistry at Work
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Conclusion
• The use of toxic chemicals in society is significant
• Green Chemistry aims to reduce or eliminate thegeneration of toxics in manufacturing processes – It is a subset of Life Cycle Thinking – It is an innovative way to deal with chemicals before they become
hazards, with the goal of making chemicals and products ―benignby design.
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