Natural Oil Wax Purification via Dissipation Factor Control

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Solution Overview

Problem

Current candle wax formulations based on natural oils face issues such as cracking, air pocket formation, product shrinkage, and inconsistent burning characteristics, which affect flame height, burning time, and appearance, particularly with soybean-based waxes.

Innovation Solution

The method involves purifying natural oil wax compositions using a dissipation factor ranging from 0.0001 to 0.0600, measured at 70°C, to control purification and improve candle properties like rate of consumption and flame height, by incorporating filtration and bleaching processes to remove impurities like nickel and volatile compounds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If natural oils are used as candle wax formulations, then environmental friendliness is improved, but product defects such as cracking, air pocket formation, and shrinkage occur

Engineering Contradiction:
Improveenvironmental friendlinessVSAvoidproduct defects
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent applies preliminary action by performing purification processes (filtration, bleaching, deodorization) on natural oils before they are used as candle wax. This pre-treatment removes impurities that would otherwise cause cracking, air pockets, and shrinkage during candle manufacturing and burning, thereby maintaining both environmental friendliness and product reliability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent utilizes parameter changes by monitoring and controlling the dissipation factor (a measure of dielectric loss) during purification processes. By adjusting purification parameters and measuring dissipation factor at specific temperatures, the patent optimizes the removal of impurities while preserving the desirable properties of natural oils for candle applications.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If natural oils are used for candle wax, then natural material requirement is satisfied, but burning performance consistency deteriorates

Engineering Contradiction:
Improvenatural material requirementVSAvoidburning performance consistency
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent applies parameter changes by using dissipation factor measurements at controlled temperatures to monitor and standardize the purification process. This ensures consistent removal of impurities across different batches of natural oils, leading to uniform burning performance in the final candle products while maintaining the use of natural materials.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent implements feedback control by measuring the dissipation factor during purification and using this information to adjust processing conditions. This closed-loop approach ensures that natural oils achieve consistent purity levels, which directly translates to consistent burning performance in candles while preserving the natural material advantage.

Inventive Principle:
Principle #23Feedback

3Manufacturing precision

If purification processes are applied to natural oil wax, then product quality is improved, but processing complexity increases

Engineering Contradiction:
Improveproduct qualityVSAvoidprocessing complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical purification systems with a simplified approach based on dissipation factor measurements. By using this electrical/dielectric property as a purification indicator, the patent reduces the need for multiple complex mechanical filtration and separation steps, thereby improving product quality while reducing processing complexity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent utilizes changes in dissipation factor (an electrical property analogous to color changes in visual detection) as an indicator of purification progress. This provides a simple, measurable parameter to monitor purification effectiveness without requiring complex analytical equipment, thus improving product quality while maintaining process simplicity.

Inventive Principle:
Principle #32Color 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 approach results in consistent and improved candle performance, including clean burning, reduced soot emission, and enhanced aesthetic properties, with controlled burn rate and flame height, while maintaining environmental friendliness.

Implementation Method 1

purifying a modified natural oil until a dissipation factor ranging from 0.0001 - 0.0600 is achieved, wherein the dissipation factor is measured at 70°C using ASTM method D924-08

Methodology Applied
Scientific EffectDielectric loss: Dielectric Permittivity

Data Source

PatentEP3615644B1Wax compositions and dissipation factor
Publication Date: 2023.08.23 CARGILL INC

AI summary

Disclosed herein is a method of using dissipation factor to control the purification of candle wax compositions, comprising purifying a modified natural oil until a dissipation factor ranging from 0.0001 - 0.0600 is achieved.