Graphite Oxide Derivative Production Skipping Purification
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Solution Overview
Problem
Current methods for producing graphite oxide derivatives face challenges in achieving high-quality production on an industrial scale due to inefficiencies in separation and purification processes, leading to clogged filters and increased time and effort, particularly when dispersing graphite oxide in non-polar or amphiphilic mediums.
Innovation Solution
A method that oxidizes graphite and reacts the resulting graphite oxide with a compound containing a hydrocarbon group, skipping the purification and drying steps to maintain reactive oxygen functional groups, enhancing dispersibility in non-polar or amphiphilic mediums by introducing functional groups with 13 or more carbon atoms or C6-C10 hydrocarbon groups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If graphite oxide is purified and dried by centrifugation or filtration before derivatization, then the purity of graphite oxide is improved, but the production time increases and filters become clogged
Solution Approach 1:
The patent applies preliminary action by performing the derivatization reaction on graphite oxide while it is still in the wet state containing the oxidizing solution, before purification and drying steps are carried out. This eliminates the need for time-consuming centrifugation or filtration operations, as the subsequent derivatization reaction proceeds directly in the aqueous environment, thereby resolving the contradiction between maintaining purity and improving production efficiency
Solution Approach 2:
The patent applies the skipping principle by deliberately omitting the intermediate purification and drying steps that would normally be performed between graphite oxide synthesis and derivatization. By rushing through the process directly to derivatization in the wet state, the patent avoids filter clogging and reduces production time while still achieving the desired derivative product
2Ease of operation
If graphite oxide is treated with strong base or aggressive reduction before derivatization, then the dispersibility of graphite oxide in non-polar media is improved, but the reactivity of oxygen-containing functional groups decreases
Solution Approach 1:
The patent applies parameter changes by modifying the reaction conditions of the derivatization step itself rather than pre-treating the graphite oxide. By adjusting parameters such as using phase transfer catalysts, selecting appropriate alkylating agents, and optimizing reaction temperature and time, the patent achieves both good dispersibility and maintained reactivity without requiring aggressive pre-treatment that would compromise functional group integrity
Solution Approach 2:
The patent applies the intermediary principle by introducing phase transfer catalysts or surfactants as mediators that enable the derivatization reaction to proceed effectively in the aqueous environment without requiring pre-modification of graphite oxide dispersibility. These intermediaries facilitate the reaction between the hydrophilic graphite oxide and hydrophobic alkylating agents, achieving both dispersibility and reactivity simultaneously
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
This approach simplifies the production process, ensures high-quality graphite oxide derivatives with improved dispersibility in various mediums, reducing production time and effort while maintaining the reactivity of the graphite oxide.
Implementation Method 1
graphite oxide is synthesized by reacting graphite with a strong oxidant in an acid solvent
Implementation Method 2
reacting graphite with a strong oxidant in an acid solvent
Implementation Method 3
graphite oxide is separated and purified from the reaction liquid containing graphite oxide by centrifuging or filtering the reaction liquid
Implementation Method 4
graphite oxide is separated and purified from the reaction liquid containing graphite oxide by centrifuging or filtering the reaction liquid
Implementation Method 5
a hydrophilic oxygen-containing functional group is reduced by heating or chemical reaction
Implementation Method 6
a hydrophilic oxygen-containing functional group is reduced by heating or chemical reaction
Implementation Method 7
graphite oxide is desirably dispersed in oil to be used as an additive for machine lubricating oil
Data Source
AI summary
Provided are a method for producing a graphite oxide derivative capable of simply producing a high-quality graphite oxide derivative, and a high-quality graphite oxide derivative. The present invention relates to a method for producing a graphite oxide derivative, the method including the steps of oxidizing graphite; and preparing a graphite oxide derivative by reacting graphite oxide in a reaction liquid containing graphite oxide obtained in the oxidation step or graphite oxide in a graphite oxide-containing composition that is separated from the reaction liquid with a compound reactive with an oxygen-containing functional group of the graphite oxide, the method not including the step of purifying and drying the graphite oxide-containing reaction liquid between the oxidation step and the graphite oxide derivative preparation step.