Silicone Surfactant Composition for Emulsion Phase Separation

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Solution Overview

Problem

Conventional methods for separating aqueous and oil phases in mixtures, especially emulsions, often fail to achieve a desirable level of separation, leading to incomplete reuse and improper disposal of components in industrial settings.

Innovation Solution

A composition comprising silicone surfactants with specific structures is used to enhance the separation of mixtures by acting as both wetting agents and demulsifiers, effectively separating aqueous and oil phases, including those in drilling muds and other industrial mixtures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional chemical means are used for separation of emulsified phase mixtures, then some separation is achieved, but the desired level of separation is not attained

Engineering Contradiction:
Improveseparation efficiencyVSAvoidcompleteness of separation
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The patent applies parameter changes by modifying the chemical composition parameters - specifically using silicone surfactants with controlled hydrophilic group content (0.1-10 mole percent) and specific molecular structures (containing SiO2/2, SiO3/2, and SiO4/2 units). This chemical parameter modification enables the surfactant to effectively break emulsions and achieve complete phase separation, resolving the contradiction between separation efficiency and completeness.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention uses composite material principles by creating a surfactant molecule that combines silicone backbone structure with hydrophilic organic groups. This composite structure allows the molecule to interact with both oil and water phases, effectively destabilizing emulsions and enabling complete separation of mixed phases that conventional single-function chemicals cannot achieve.

Inventive Principle:
Principle #40Composite materials

2Productivity

If mechanical separation is used for mixtures, then aqueous and oil phases can be partially separated, but emulsified phases cannot be adequately separated

Engineering Contradiction:
Improveseparation speedVSAvoidseparation completeness
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The silicone surfactant acts as an intermediary substance that mediates between the oil and water phases. It adsorbs at the interface and reduces interfacial tension, causing emulsion breakdown. This intermediary action enables rapid and complete separation of emulsified phases, overcoming the limitation of mechanical separation methods that cannot adequately separate emulsions.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces mechanical separation methods with a chemical approach using silicone surfactants. Instead of relying solely on mechanical forces (centrifugal, gravitational) that fail to separate emulsions, the invention uses chemical action of the surfactant to break emulsion structures, achieving both rapid and complete separation that mechanical methods alone cannot provide.

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

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 use of silicone surfactants significantly improves phase separation efficiency, allowing for quicker and more complete separation of components, reducing contamination and facilitating environmentally safe disposal of drilling muds and other industrial residues.

Implementation Method 1

silicone surfactants and the mixture, which is to be separated... acting as both wetting agents and demulsifiers, effectively separating aqueous and oil phases

Methodology Applied
Scientific EffectDemulsification: Emulsion

Implementation Method 2

acting as both wetting agents and demulsifiers, effectively separating aqueous and oil phases

Methodology Applied
Scientific EffectWetting: Wetting

Data Source

PatentEP1971649A1Composition for separating mixtures
Publication Date: 2008.09.24 MOMENTIVE PERFORMANCE MATERIALS INC

AI summary

Therefore, there is provided herein in one specific embodiment a composition comprising: a) at least one silicone, surfactant, and where silicone of silicone surfactant (a) has the general structure of: M1aM2