Air Classification for Purifying Organically Modified Surface Active Minerals

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Solution Overview

Problem

Current methods for purifying organically modified surface active mineral particulates (OMSAMs) from gangue particulates are energy and water intensive, requiring significant equipment and infrastructure, and result in high production costs due to the need for extensive water and energy processes.

Innovation Solution

The use of air classification to separate OMSAMs from gangue particulates based on size and density, reducing the need for extensive water and energy processes and minimizing equipment footprint, achieving a substantially purified OMSAM composition with less than 5% impurities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If wet slurry process is used to purify OMSAMs from gangue, then purification effectiveness is improved, but energy consumption increases

Engineering Contradiction:
Improvepurification effectivenessVSAvoidenergy consumption
Core Design Contradiction:
Manufacturing precisionVSUse of energy by moving object

Solution Approach 1:

The patent extracts and removes gangue particulates from the crude mineral composition through air classification, separating the desirable SAM materials from undesirable gangue without requiring extensive water processing and drying operations, thereby reducing energy consumption while maintaining purification effectiveness

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the traditional mechanical wet slurry process with an air classification system that uses aerodynamic forces to separate particles based on density and size differences, eliminating the need for water-intensive mechanical separation processes and reducing overall energy requirements

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

2Manufacturing precision

If wet slurry process is used to purify OMSAMs from gangue, then purification effectiveness is improved, but water consumption increases

Engineering Contradiction:
Improvepurification effectivenessVSAvoidwater consumption
Core Design Contradiction:
Manufacturing precisionVSLoss of substance

Solution Approach 1:

The air classification process extracts and removes gangue particulates directly from the crude mineral composition without requiring water for washing, flushing, or drying operations, thereby eliminating water consumption entirely while achieving effective purification

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses pneumatic air classification instead of hydraulic water-based processing to separate particles, utilizing airflow to carry and sort particulates by density and size, thereby eliminating the need for water consumption in the purification process

Inventive Principle:
Principle #29Pneumatics and hydraulics

3Manufacturing precision

If wet slurry process is used to purify OMSAMs from gangue, then purification effectiveness is improved, but equipment footprint increases

Engineering Contradiction:
Improvepurification effectivenessVSAvoidequipment footprint
Core Design Contradiction:
Manufacturing precisionVSArea of stationary object

Solution Approach 1:

The air classification system extracts gangue separation functionality into a single compact unit that uses airflow channels and classification chambers, eliminating the need for extensive water processing equipment, storage tanks, and drying infrastructure, thereby reducing equipment footprint while maintaining purification effectiveness

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the operating parameters from water-based slurry processing to air-based classification, which allows for a more compact equipment design with smaller processing chambers and no requirement for large water storage or drainage systems, reducing overall equipment footprint

Inventive Principle:
Principle #35Parameter changes

4Manufacturing precision

If wet slurry process is used to purify OMSAMs from gangue, then purification effectiveness is improved, but operational time increases

Engineering Contradiction:
Improvepurification effectivenessVSAvoidoperational time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The air classification process extracts gangue particulates in a single continuous operation without requiring sequential steps for washing, filtering, and drying, thereby reducing operational time while maintaining purification effectiveness

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The air classification system operates continuously with particulates being fed, classified, and collected in an uninterrupted flow, eliminating the batch processing interruptions and drying wait times associated with wet slurry processes, thereby reducing overall operational time

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

This method significantly reduces energy, water, and operational time requirements, leading to lower production costs and a more efficient purification process while maintaining high purity levels of OMSAMs.

Implementation Method 1

separating at least a portion of the OMSAM particulates from the gangue particulates using an air classifier, thereby forming a substantially purified OMSAM composition, wherein the separation is based on at least one of the size and density of the OMSAM particulates

Methodology Applied
Scientific EffectAir classification: Cyclone Separation

Data Source

PatentUS10232381B2Purification of organically modified surface active minerals by air classification
Publication Date: 2019.03.19 HALLIBURTON ENERGY SERVICES INC
  • US10232381B2 patent drawing
  • US10232381B2 patent drawing
  • US10232381B2 patent drawing

AI summary

Methods including drying a crude mineral composition including surface active minerals (“SAM”) and gangue, grinding the crude mineral composition to produce a crude mineral particulate composition including SAM particulates and gangue particulates, contacting the crude mineral particulate composition with a quaternary ammonium surfactant to form organically modified surface active mineral (“OMSAM”) particulates, grinding the crude mineral particulate composition that was contacted with the quaternary ammonium surfactant, and separating a portion of the OMSAM particulates from the gangue particulates using an air classifier.