Solid Liquid Extraction Unit – 20 L to 300 L

The Solid Liquid Extraction Unit is a process system developed for applications where valuable or soluble constituents must be removed from a solid material using an appropriate solvent.

The process is based on the transfer of soluble compounds from the solid phase into the liquid solvent. The solid feed is placed inside the extraction vessel, while the solvent is introduced and circulated through the material under controlled conditions.

The system shown is available in capacities ranging from approximately 20 litres to 300 litres, making it suitable for research-scale processing, pilot plant studies, scale-up development and suitable production applications.

The extraction vessel is connected with process piping, valves and a solvent circulation arrangement. A separate vessel with a heating bath is incorporated for heating and vaporizing the solvent where required.

Solvent vapour rises through the system and passes through an overhead condenser, where it is cooled and condensed. The condensed solvent can then return to the extraction vessel, allowing repeated contact with the solid material.

This repeated solvent circulation improves extraction efficiency and helps recover soluble constituents from the solid feed.

Key Features

• Designed for solid-liquid extraction
• Capacity range from 20 L to 300 L
• Suitable for solvent extraction
• Extraction vessel provided
• Solvent circulation arrangement
• Heating bath
• Overhead condenser
• Reflux arrangement
• Process valves and piping
• Drain valves
• Suitable for batch processing
• Useful for botanical and herbal extraction
• Pharmaceutical process applications
• Pilot plant use
• Research and process-development applications

Main Components

Capacity Range

20 L to 300 L

The Solid Liquid Extraction Unit can be configured in capacities ranging from approximately 20 litres to 300 litres.

Suitable sizes can be selected for:

• Laboratory scale-up
• Research batches
• Pilot plant trials
• Process development
• Herbal extraction
• Pharmaceutical processing
• Small-scale production

Working Principle

1. Solid Material Loading

The solid raw material is placed inside the extraction vessel.

2. Solvent Charging

A suitable solvent is introduced into the system according to the extraction process.

3. Heating

The solvent is heated in the associated vessel using the heating bath.

4. Vapour Generation

As the solvent is heated, vapour rises through the vapour pipeline toward the condenser.

5. Condensation

The overhead condenser cools the vapour and converts it back into liquid solvent.

6. Solvent Contact

The condensed solvent contacts the solid material inside the extraction vessel, dissolving soluble components.

7. Repeated Extraction

The solvent can be recirculated repeatedly through the material to improve extraction efficiency.

8. Extract Collection

The solvent containing extracted compounds is collected through the outlet and can be sent for further concentration, solvent recovery or purification.

Extraction Principle

Mass Transfer

The process works by transferring soluble compounds from the solid phase into the liquid solvent.

Extraction efficiency depends on several factors, including:

• Solvent selection
• Particle size
• Extraction temperature
• Contact time
• Solvent-to-solid ratio
• Solubility of target compounds
• Circulation rate
• Number of extraction cycles

Technical Specifications

Exact vessel size, heating capacity, condenser area, construction material, operating temperature and solvent compatibility depend on the selected process configuration.

Benefits

• Efficient extraction from solid materials
• Suitable for solvent-based processing
• Wide 20 L to 300 L capacity range
• Repeated solvent circulation
• Suitable for botanical extracts
• Useful for pharmaceutical processing
• Supports product recovery
• Suitable for pilot-scale trials
• Useful for research and development
• Can be integrated with solvent recovery
• Suitable for batch processing
• Flexible process configuration

Scope of Application

• Herbal Extraction
• Botanical Extraction
• Pharmaceutical Extraction
• Plant Material Extraction
• Chemical Extraction
• Food Ingredient Extraction
• Natural Product Extraction
• Solvent Extraction
• Process Development
• Pilot Plant Studies
• Research & Development
• Product Recovery

Applications

• Pharmaceutical Industries
• Herbal Processing Industries
• Nutraceutical Industries
• Chemical Industries
• Food Processing Industries
• Research Laboratories
• Pilot Plants
• Process Development Laboratories
• Research Institutes
• R&D Centers
• Production Facilities
• Industrial Research Centers

Optional Configurations

• Different vessel capacities
• Alternative extraction vessel materials
• Different solvent vessels
• Variable heating systems
• Customized condenser design
• Additional collection receivers
• Temperature monitoring
• Vacuum arrangement
• Customized valves
• Solvent recovery integration
• Process instrumentation
• Customized support structure

Frequently Asked Questions

What is a Solid Liquid Extraction Unit?

A Solid Liquid Extraction Unit is process equipment used to extract soluble components from solid material using a suitable liquid solvent.

What capacities are available?

The shown system is available in capacities ranging from approximately 20 litres to 300 litres.

What materials can be processed?

The unit can be configured for suitable herbs, plant materials, pharmaceutical raw materials, food ingredients, chemicals and other solid feedstocks.

What is the role of the solvent?

The solvent dissolves the desired soluble compounds from the solid material and carries them into the extract phase.

Does the unit include a condenser?

Yes. The system shown includes an overhead condenser for solvent condensation and recirculation.

Can the solvent be reused?

Yes. Depending on the process, the condensed solvent can be recirculated through the extraction vessel and may also be recovered for reuse.

Is it suitable for herbal extraction?

Yes. Solid-liquid extraction systems are commonly used for suitable herbal, botanical and natural-product extraction processes.

Can it be used for pharmaceutical applications?

Yes. It can be configured for suitable pharmaceutical extraction, research and process-development applications.

Is it suitable for pilot plant use?

Yes. The 20 L to 300 L capacity range makes it suitable for pilot studies, scale-up and process development.

Can the system be customized?

Yes. Capacity, material of construction, heating, condenser, solvent circulation, instrumentation and recovery arrangements can be configured according to process requirements.

Why Choose Micro Technologies?

• 20 L to 300 L capacity range
• Suitable for solid-liquid extraction
• Solvent circulation arrangement
• Heating and condensation system
• Suitable for herbal and pharmaceutical applications
• Pilot plant configurations
• Flexible process design
• Custom capacity options
• Solvent recovery integration
• Research and process-development applications
• Industrial supply
• Technical assistance

Call to Action

Choose the Solid Liquid Extraction Unit – 20 L to 300 L from Micro Technologies for efficient extraction of soluble compounds from solid materials. Contact us with your required capacity, raw material, solvent, operating temperature and application for a suitable configuration and quotation.