Trifluoroiodomethane Production via Iodine Monochloride Reactant

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Solution Overview

Problem

Current methods for producing trifluoroiodomethane from metal trifluoroacetates are inefficient due to the high cost and limited utilization of iodine, with elemental iodine being one of the most expensive reactants.

Innovation Solution

Reacting metal trifluoroacetate with iodine monochloride in a solvent at controlled temperatures and pressures to produce trifluoroiodomethane, leveraging the higher reactivity and lower melting point of iodine monochloride for improved iodine utilization and yield.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If elemental iodine is used to produce trifluoroiodomethane from metal trifluoroacetate, then the reaction can proceed, but only 50% of the iodine is converted to the desired product with the other half forming metal iodide byproduct

Engineering Contradiction:
Improveiodine utilization efficiencyVSAvoidiodine loss to byproduct
Core Design Contradiction:
ProductivityVSLoss of substance

Solution Approach 1:

The patent changes the chemical form of the iodine source from elemental iodine (I2) to iodine monochloride (ICl). This parameter change in the reactant's chemical composition enables near-complete conversion of iodine to the desired trifluoroiodomethane product, eliminating the 50% iodine loss that occurs when using elemental iodine where half the iodine forms metal iodide byproduct.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If elemental iodine is used in the production process, then the reaction can occur, but the high cost of iodine is not optimized

Engineering Contradiction:
Improvecost efficiency of iodine usageVSAvoidamount of expensive iodine required
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

The patent changes the chemical form of iodine from elemental iodine to iodine monochloride, which allows for more efficient utilization of the expensive iodine component. By using ICl, nearly 100% of the iodine atoms are converted to the desired product rather than losing 50% to byproduct formation, thereby optimizing the cost efficiency of iodine usage.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If the reaction is carried out with metal trifluoroacetate and iodine, then trifluoroiodomethane is produced, but significant byproduct formation occurs

Engineering Contradiction:
Improveyield of trifluoroiodomethaneVSAvoidbyproduct formation
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The patent changes the iodine source from elemental iodine to iodine monochloride, which fundamentally alters the reaction pathway. This parameter change eliminates the formation of metal iodide byproduct that occurs with elemental iodine, resulting in near-complete conversion to the desired trifluoroiodomethane product and significantly reducing harmful byproduct formation.

Inventive Principle:
Principle #35Parameter changes

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 process achieves near-complete conversion of iodine to trifluoroiodomethane, reducing byproduct formation and energy consumption, while providing a safer and less corrosive metal chloride byproduct.

Implementation Method 1

reacting the metal trifluoroacetate and iodine monochloride in the presence of the solvent to produce trifluoroiodomethane

Methodology Applied
Scientific EffectChemical reaction: Chemical Bonding

Implementation Method 2

heating the metal trifluoroacetate, iodine monochloride, and the solvent to react the metal trifluoroacetate and iodine monochloride

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentUS10870614B2Processes for producing trifluoroiodomethane using metal trifluoroacetates
Publication Date: 2020.12.22 SOLSTICE ADVANCED MATERIALS US INC

AI summary

The present disclosure provides a process for producing trifluoroiodomethane. The process includes providing a metal trifluoroacetate, iodine monochloride, and a solvent, and reacting the metal trifluoroacetate and iodine monochloride in the presence of the solvent to produce trifluoroiodomethane.