Pressure-Filtered Phosphoric Acid Sampling for Faster Process Monitoring

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Solution Overview

Problem

Existing apparatuses for sampling phosphoric acid are not capable of rapid sampling, leading to inefficient monitoring of production processes.

Innovation Solution

A sampling vessel that filters phosphoric acid under pressure, equipped with means for taking and conveying the sample, allowing for rapid filtration and analysis outside the production space, using materials like polypropylene and filters with air permeability between 10 and 1000 L/(m².s).

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If traditional filtering apparatus is used to take phosphoric acid samples, then the apparatus structure is simple, but the sampling speed is slow and cannot enable rapid monitoring

Engineering Contradiction:
Improvesampling speedVSAvoidapparatus structure
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The apparatus is divided into two independent chambers (first chamber for storage, second chamber for sampling) that can operate independently. This segmentation allows the sampling chamber to be filled and emptied without affecting the storage chamber, enabling rapid sequential sampling operations while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The apparatus incorporates dynamic control through closure members (valves) on the conduits that can be opened or closed to control sample flow. This dynamic control enables rapid switching between sampling operations and storage operations, significantly improving sampling speed while using simple valve mechanisms rather than complex systems.

Inventive Principle:
Principle #15Dynamics

2Productivity

If filtration is performed in the production tank, then the sampling process is integrated, but the monitoring efficiency is reduced due to slower sampling rate

Engineering Contradiction:
Improvemonitoring efficiencyVSAvoidsampling time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The sampling and filtration operations are extracted from the production tank and performed in a separate second chamber. This extraction allows sampling to occur independently and rapidly without interrupting or slowing down the main production process, thereby improving monitoring efficiency while minimizing time loss through dedicated sampling infrastructure.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The first chamber continuously stores filtered phosphoric acid in advance, so when sampling is needed, the second chamber can be quickly filled from the first chamber without waiting for new filtration to complete. This preliminary storage action enables rapid sampling operations and improves monitoring productivity without time loss.

Inventive Principle:
Principle #10Preliminary action

3Speed

If rapid sampling is implemented, then monitoring frequency increases, but the apparatus cannot handle viscous phosphoric acid samples effectively

Engineering Contradiction:
Improvesampling speedVSAvoidability to handle viscous samples
Core Design Contradiction:
SpeedVSAdaptability or versatility

Solution Approach 1:

The apparatus applies pressure (parameter change) to the phosphoric acid sample during filtration to accelerate the process and handle viscous samples effectively. By controlling pressure parameters, the system achieves rapid sampling speeds while maintaining the ability to process viscous phosphoric acid without clogging or delays.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The filtration system is designed with universal capability to handle both liquid and viscous phosphoric acid samples through the same apparatus. The filter and pressure control mechanism work together to provide adaptable performance across different sample viscosities, enabling rapid sampling regardless of sample characteristics.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Enables faster filtration and analysis of phosphoric acid samples, facilitating more frequent and efficient monitoring of production processes, with the ability to handle viscous samples and maintain the filtration system efficiently.

Implementation Method 1

a sampling vessel (12) suitable for filtering the phosphoric acid sample under pressure

Methodology Applied
Scientific EffectPressure filtration: Filter (physical)

Implementation Method 2

Means for pressurizing the sampling vessel to filter the phosphoric acid sample under pressure, preferably under air pressure

Methodology Applied
Scientific EffectAir pressure: Pressure Increase

Implementation Method 3

the means for taking are suitable for taking the phosphoric acid sample by gravity from the space containing phosphoric acid

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentEP4664091A1Assembly and method for processing a phosphoric acid sample
Publication Date: 2025.12.17 PRAYON SA
  • EP4664091A1 patent drawingFigure 1
  • EP4664091A1 patent drawingFigure 2~3
  • EP4664091A1 patent drawingFigure 4~5

AI summary

The present invention relates to an assembly (10) for processing a phosphoric acid sample, comprising a sampling vessel (12) suitable for filtering the phosphoric acid sample under pressure, means for taking the phosphoric acid sample from a space (14) containing phosphoric acid and means for conveying the phosphoric acid sample out of the space to the sampling vessel, at the outlet of the sampling vessel, means for collecting at least one filtered volume of phosphoric acid sample. The invention also relates to a method for processing a phosphoric acid sample.