Electrochemical Cycloalkane Oxidation Using Organic Nitrate Salts
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Solution Overview
Problem
Existing processes for converting saturated, non-functionalized cycloaliphatic hydrocarbons into cycloalkanones are costly, generate hazardous waste, and require toxic reagents, making them inefficient and environmentally unfriendly.
Innovation Solution
An electrochemical oxidation process using organic nitrate salts as both conducting and mediator in the presence of oxygen, which introduces the oxygen function into cycloaliphatic hydrocarbons, eliminating the need for chemical oxidants and costly catalysts, and allowing the process to be performed at ambient conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transition metal catalysts and chemical oxidants are used for oxidation of cycloaliphatic hydrocarbons, then the oxidation reaction can proceed, but the process cost increases and hazardous waste is generated
Solution Approach 1:
The patent replaces chemical oxidants and metal catalysts with an electrochemical system where electricity directly drives the oxidation reaction. The electrochemical cell uses electron transfer at electrodes to oxidize cycloaliphatic hydrocarbons, eliminating the need for chemical oxidizing agents and toxic metal catalysts, thereby resolving the contradiction between reaction efficiency and hazardous waste generation
Solution Approach 2:
The patent changes the fundamental reaction parameters from chemical oxidation to electrochemical oxidation. By controlling electrical parameters (current, voltage, electrolyte composition) instead of chemical parameters (oxidant concentration, catalyst type), the process achieves effective oxidation while avoiding harmful chemical reagents and waste products
2Quantity of substance
If conventional oxidation processes are used, then cycloalkanones can be produced, but the process requires costly reagents and catalysts
Solution Approach 1:
The patent substitutes expensive chemical oxidants and metal catalysts with electricity as the oxidizing agent. The electrochemical oxidation process uses electrical energy to directly oxidize cycloaliphatic hydrocarbons to cycloalkanones, eliminating the need for costly reagents while maintaining effective product formation
Solution Approach 2:
The patent employs inexpensive electrolyte salts and simple electrode materials that can be easily replaced or regenerated. The electrolyte solution serves as a consumable medium that facilitates electron transfer without requiring expensive purification or disposal infrastructure, making the overall process more cost-effective
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The process achieves high selectivity and reduces waste generation, providing an environmentally friendly and cost-effective method for producing cycloalkanones from cycloalkanes.
Implementation Method 1
electrochemical oxidation of unsubstituted or at least singly substituted, saturated cycloaliphatic hydrocarbons
Implementation Method 2
electrochemically oxidizing the unsubstituted or at least singly substituted, saturated cycloaliphatic hydrocarbon provided in step (a) in the presence of the organic nitrate salt provided in step (b) in an electrolysis cell
Data Source
AI summary
A process produces unsubstituted or at least singly substituted cycloalkanones by electrochemical oxidation of unsubstituted or at least singly substituted, saturated cycloaliphatic hydrocarbons in the presence of an inorganic or organic nitrate salt in an electrolysis cell in a reaction medium in the presence of oxygen.