Wet-Phase Polyisoprene Separation Using Added Adsorbent
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Solution Overview
Problem
Existing methods for extracting polyisoprene from plants with lower rubber content or low molecular weight rubber are inefficient and labor-intensive, leading to low yield and high equipment costs due to uncontrollable agglomeration and separation challenges during mechanical processing.
Innovation Solution
The addition of an adsorbent material during mechanical processing in the wet phase accelerates and supports the detachment and agglomeration of natural rubber, using physical adsorption to enhance separation efficiency and reduce processing time, allowing for continuous-flow grinding mills and mechanical separation processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If mechanical processing is continued to ensure complete extraction of natural rubber, then yield increases, but already agglomerated natural rubber is destroyed and separation becomes difficult
Solution Approach 1:
The adsorbent material is added before mechanical processing begins, pre-establishing adsorption sites that will capture natural rubber as it is released. This preliminary preparation ensures that when mechanical processing destroys agglomerates, the adsorbent is already positioned to immediately capture the released rubber, preventing re-agglomeration and maintaining separation efficiency throughout the process.
Solution Approach 2:
The adsorbent material acts as an intermediary substance between the mechanical processing and the natural rubber. It mediates the interaction by providing a stable surface for rubber attachment, decoupling the destructive mechanical action from the separation function. This intermediary role allows mechanical processing to continue while maintaining effective separation through the adsorbent-rubber interaction.
2Reliability
If mechanical processing is stopped early to preserve agglomerated natural rubber, then separation becomes easier, but not all natural rubber has detached from biomass
Solution Approach 1:
The adsorbent material serves as an intermediary that facilitates the detachment process. By providing continuous adsorption sites during mechanical processing, it encourages natural rubber to detach from biomass and attach to the adsorbent, effectively lowering the threshold for successful separation while maximizing yield.
Solution Approach 2:
The addition of adsorbent material changes the surface area and adsorption capacity parameters of the system. This parameter change creates favorable conditions for natural rubber detachment and attachment, allowing the process to proceed to completion without requiring early termination for separation purposes.
3Loss of time
If adsorbent material is added to accelerate detachment and agglomeration, then processing time is reduced, but equipment size and complexity may increase
Solution Approach 1:
The adsorbent material is introduced as a simple intermediary substance that can be added to the existing mechanical processing system without requiring fundamental equipment redesign. It mediates the acceleration of detachment and agglomeration through its adsorption properties, reducing processing time while maintaining compatibility with standard equipment.
Solution Approach 2:
Adding adsorbent material changes the chemical and surface area parameters of the processing system, which accelerates the natural rubber detachment and agglomeration kinetics. This parameter change achieves time reduction through chemical enhancement rather than equipment expansion, maintaining equipment simplicity.
4Device complexity
If conventional extraction methods are used for plants with low rubber content, then process simplicity is maintained, but yield and efficiency are poor
Solution Approach 1:
The adsorbent material serves as a mediating substance that enhances the interaction between mechanical processing and natural rubber in plants with low rubber content. It facilitates efficient detachment and agglomeration even when rubber concentration is low, thereby improving yield without requiring complex equipment designs.
Solution Approach 2:
The addition of adsorbent material changes the adsorption capacity and surface area parameters of the system, creating favorable conditions for efficient natural rubber extraction from low-rubber-content plants. This parameter enhancement improves productivity while maintaining process simplicity through chemical rather than mechanical complexity.
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 increases the yield of polyisoprene and allows for more precise control of processing time, reducing equipment size and costs while maintaining throughput, and enables the extraction of additional valuable nonpolar substances like lipids and other plant components.
Implementation Method 1
the addition of an adsorbent material to the grinding mixture before or during mechanical processing in the wet phase
Implementation Method 2
using physical adsorption to enhance separation efficiency
Implementation Method 3
the natural rubber particles are said to agglomerate
Implementation Method 4
impact, cutting, and/or abrasive mechanical processing of plant-based raw materials
Data Source
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AI summary
The present invention relates to a method for separating polyisoprene and/or other apolar valuable substances from vegetable feedstock, with a first pretreatment (100) of the vegetable feedstock; a percussive, cutting and/or rubbing mechanical processing (102) of the vegetable feedstock after the pretreatment in a wet phase, during which the polyisoprene and/or other apolar valuable substances contained in the processed raw plant materials are extracted from the vegetable feedstock; and after the mechanical processing (102), a separation (104) of the polyisoprene and/or the other apolar valuable substances from the wet phase. The invention proposes that, before or during the mechanical processing (102) in the wet phase, an adsorber material (106) be added to the ground product mixture to create a method which makes it possible to obtain polyisoprene and other apolar valuable substances from plants having a low rubber content in a technically simpler manner.