1230zd Production via Gas-Phase Metal Catalysis

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Solution Overview

Problem

Existing methods for manufacturing 1-chloro-3,3,3-trifluoropropene (1233zd) require a stoichiometric excess of hydrogen fluoride, posing safety risks and necessitating improved industrial processes.

Innovation Solution

A gas-phase reaction involving a halogenated hydrocarbon compound with a carbon number of 3 and a metal catalyst, optionally with a fluorocarbon compound, at elevated temperatures and pressures, to produce 1233zd without hydrogen fluoride.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a stoichiometric excess of hydrogen fluoride is used in the fluorination reaction, then the yield of 1233zd is improved, but the safety risk and accident potential increase

Engineering Contradiction:

Improveyield of 1233zdVSAvoidsafety risk from hydrogen fluoride leakage

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The invention extracts and eliminates hydrogen fluoride from the reaction system by using a fluorocarbon compound as the fluorinating agent instead. This substitution removes the harmful substance while maintaining the fluorination capability, directly resolving the contradiction between yield and safety risk.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The invention changes the chemical parameter of the fluorinating agent from hydrogen fluoride to fluorocarbon compounds. This parameter change maintains the fluorination function while eliminating the safety hazards associated with hydrogen fluoride, allowing high yield production without excessive safety risks.

Inventive Principle:

Principle #35Parameter changes

2Ease of manufacture

If hydrogen fluoride is used as the fluorinating agent, then the manufacturing process is simple, but the risk management burden increases due to leakage hazards

Engineering Contradiction:

Improvesimplicity of manufacturing processVSAvoidrisk management complexity

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The invention converts the harmful properties of fluorocarbon compounds (which were previously considered waste or less useful) into beneficial fluorinating agents. This transforms potentially harmful substances into useful reagents that maintain process simplicity while reducing risk management burdens.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The fluorocarbon compound acts as an intermediary substance that transfers fluorine atoms to the hydrocarbon substrate without requiring the highly reactive and dangerous hydrogen fluoride. This intermediary approach simplifies safety management while maintaining manufacturing efficiency.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Productivity

If conventional fluorination methods are used, then high yield of 1233zd is achieved, but environmental and safety concerns arise from hydrogen fluoride usage

Engineering Contradiction:

Improveyield of 1233zdVSAvoidenvironmental and safety hazards

Core Design Contradiction:

ProductivityVSObject-generated harmful factors

Solution Approach 1:

The invention copies the effective fluorination mechanism using fluorocarbon compounds that mimic the chemical behavior of hydrogen fluoride in transferring fluorine atoms, while eliminating the harmful environmental and safety characteristics. This allows high yield production without the associated hazards.

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The fluorocarbon compounds used in this invention are typically by-products or less valuable substances that can be consumed in the reaction without significant economic loss. This allows their use as fluorinating agents without increasing production costs while eliminating the need for expensive safety infrastructure required for hydrogen fluoride.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

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 method enables efficient and safe industrial production of 1233zd with high yield and selectivity, reducing safety hazards associated with hydrogen fluoride use.

Implementation Method 1

allowing a halogenated hydrocarbon compound having a carbon number of 3 to contact with a metal catalyst in a gas phase, especially, with a metal catalyst in a gas phase in the presence of a fluorocarbon compound

Methodology Applied

Scientific EffectCatalysis: Catalysis

Data Source

PatentEP3647302B1Method for producing 1-chloro-3,3,3-trifluoropropene

Publication Date: 2025.10.08 CENT GLASS CO LTD

AI summary

A method for manufacturing 1-chloro-3,3,3-trifluoropropene (1230zd) is provided. The method includes contacting a halogenated hydrocarbon compound having a carbon number of 3 and represented by a general formula (1) with a metal catalyst in a gas phase. CFaCl3-a-CH2-CHFbCl2-b (1) In the formula, a is an integer from 0 to 2, b is 1 or 2 when a = 0, b is 0 or 1 when a = 1, and b is 0 when a = 2.