Continuous Iodide Cutting, Autogenous Fusion, and Iodine Separation Reactor

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Solution Overview

Problem

Current industrial processes for obtaining refined iodine are inefficient, discontinuous, and face challenges such as limited production capacity, excessive energy consumption, difficulty in controlling and standardizing operational conditions, inefficiency of key equipment, excessive equipment volume and maintenance, iodine losses, and occupational safety risks due to environmental pollution.

Innovation Solution

A continuous process called Iodine Autogenous Fusion (IAF) that combines iodide cutting, melting, and separation in a single reactor, utilizing a preheated iodide solution with an oxidizing agent to achieve instantaneous liquid iodine production, followed by centrifugal or gravitational separation, eliminating the need for bulky equipment and reducing exposure to corrosive conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional discontinuous processes are used for iodide cutting and iodine separation, then operational control and standardization are difficult, but equipment volume and maintenance requirements are reduced

Engineering Contradiction:
Improveoperational control and standardizationVSAvoidequipment volume
Core Design Contradiction:
Ease of operationVSVolume of stationary object

Solution Approach 1:

The patent combines multiple discontinuous operations (iodide cutting, iodine melting, and iodine separation) into a single continuous process that occurs within one reactor vessel. This integration eliminates the need for multiple separate equipment units, reducing overall equipment volume while simultaneously improving operational control and standardization through continuous processing.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The invention implements a continuous process where iodide cutting, iodine generation, and separation occur continuously rather than in batch operations. This continuity enables standardized operational conditions to be maintained consistently, improving ease of operation and control while reducing the equipment volume needed compared to multiple batch processing units.

Inventive Principle:
Principle #20Continuity of useful action

2Device complexity

If conventional separate operations are used for iodide cutting, melting, and separation, then process simplicity is reduced, but energy consumption is lower

Engineering Contradiction:
Improveprocess simplicityVSAvoidenergy consumption
Core Design Contradiction:
Device complexityVSUse of energy by moving object

Solution Approach 1:

The patent merges the cutting, melting, and separation operations into a single integrated continuous process within one reactor, significantly simplifying the overall process complexity. Although this integration requires maintaining higher temperatures continuously, it eliminates the need for multiple heating and cooling cycles that would be required in separate batch operations, thereby reducing total energy consumption.

Inventive Principle:
Principle #5Merging (Combining)

3Productivity

If conventional batch processes are used, then production capacity is limited, but equipment maintenance requirements are reduced

Engineering Contradiction:
Improveproduction capacityVSAvoidequipment maintenance
Core Design Contradiction:
ProductivityVSEase of repair

Solution Approach 1:

The invention transitions from batch processing to continuous processing, enabling uninterrupted production that significantly increases production capacity. The continuous operation within a single reactor reduces the frequency of startup and shutdown cycles, thereby reducing wear and maintenance requirements compared to multiple batch processing units that must be repeatedly cycled.

Inventive Principle:
Principle #20Continuity of useful action

4Loss of substance

If conventional processes are used, then iodine losses occur due to sublimation, but process energy consumption is lower

Engineering Contradiction:
Improveiodine lossesVSAvoidprocess energy consumption
Core Design Contradiction:
Loss of substanceVSUse of energy by moving object

Solution Approach 1:

The continuous process maintains iodine in a controlled state throughout the reaction and separation phases, preventing the intermittent heating and cooling cycles that cause sublimation losses in batch processes. Although continuous operation requires sustained energy input, it eliminates the thermal shocks and temperature fluctuations that lead to iodine sublimation and loss, thereby reducing overall iodine losses despite higher continuous energy consumption.

Inventive Principle:
Principle #20Continuity of useful action

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 IAF process significantly enhances production capacity, reduces energy consumption and maintenance, minimizes iodine losses, and improves product purity and safety, enabling automated and efficient operation.

Implementation Method 1

the iodide is reacted 'hot' with an oxidizing reagent

Methodology Applied
Scientific EffectOxidation: Oxidation

Implementation Method 2

taking advantage of the reaction heat of the cutting, to generate liquid iodine

Methodology Applied
Scientific EffectExothermic reaction: Exothermic Reaction

Implementation Method 3

Iodine Autogenous Fusion (IAF)... iodide cutting, iodine melting and separation thereof

Methodology Applied
Scientific EffectMelting: Melting

Implementation Method 4

separating reactor equipment (hydrocyclone)

Methodology Applied
Scientific EffectCentrifugal separation: Centrifugal Separation

Implementation Method 5

an iodide solution heater

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentUS12351468B2Continuous process for iodide cutting and autogenous fusion and separation of iodine, and device for carrying out the process
Publication Date: 2025.07.08 UNIV DE SANTIAGO DE CHILE
  • US12351468B2 patent drawing
  • US12351468B2 patent drawing
  • US12351468B2 patent drawing

AI summary

The present invention relates to a process for obtaining and refining elemental iodine contained in an iodide solution, which specifically comprises the steps of iodide cutting, and iodine melting, which take place simultaneously by reacting the preheated iodide solution with an oxidizing agent for directly producing elemental molten iodine, without passing iodine through a crystalline state; and the step of separating elemental molten iodine from spent melt water by liquid-liquid separation; carrying out all these steps in a single system operated in continuous regime.