Leaching is a process that extracts soluble components from solids using a liquid solvent. It involves two phases - an overflow phase containing the solute and solvent, and an underflow phase containing the solid and solvent. There are three main stages: dissolution of the solute in the selective solvent, diffusion of solutes through particle pores, and transfer of the solute into the bulk solvent. Common leaching equipment includes agitated vessels, Dorr thickeners, Kennedy extractors, Bollman extractors, and Rotocel extractors. Leaching can be classified as physical, chemical, or bacterial and can operate in batch, semi-batch, or continuous modes.
wholw Content is covered in this presentation .it will give u a basic idea and types about leaching and it will also provide u information via Diagrams .
wholw Content is covered in this presentation .it will give u a basic idea and types about leaching and it will also provide u information via Diagrams .
The processing technique employing a suspension or fluidization of small solid particles in a vertically rising stream of fluid usually gas so that fluid and solid come into intimate contact. This is a tool with many applications in the petroleum and chemical process industries. Suspensions of solid particles by vertically rising liquid streams are of lesser interest in modern processing, but have been shown to be of use, particularly in liquid contacting of ion-exchange resins. However, they come in this same classification and their use involves techniques of liquid settling, both free and hindered (sedimentation), classification, and density flotation.
continuous distillation with rectification process and its working principal with diagram and also its use in industrial applications.
design and operations explained.
Absorption & indusrial absorber,Gas Absorption,Equipments,Absorption in chemical Reaction,Absorption in Packed Tower,Absorption for counter current,Choice of Solvent,Continuous Contact Equipment,Height Equivalent to Theoretical Plate,HETP
Presentation on Azeotropic and Extractive Distillation. Introduction about distillation, azeotropic and extractive distillation and the difference between them.
Agitation and Mixing are two important unit operations used in industries such as Impellers agitators are widely used to circulate the liquid through the vessel in which the dispersion of liquids and gases into other liquids like mixing of stiff paste, elastomers and dry solids powders takes place.
Types of Distillation & column internalsBharat Kumar
More:- https://chemicalengineeringworld.com
Distillation is a method of separating the components of a solution which depends upon distribution of the substances between a gas and liquid phase, applied to cases where all components are present in both phases.
* What is distillation ?
* Types of Distillation
* Batch Distillation
* Azeotropic Distillation
* Flooding
* Priming
* Coning
* Weeping
* Dumping
* Packed Column
* Tray column
* Reflux Ratio
* Relative volatility
* Distillation column
Distillation is a method of separating mixtures based on differences in volatility (volatility is the tendency of a substance to vaporize. Volatility is directly related to a substance's vapor pressure.) of components in a boiling liquid mixture. Distillation is a unit operation, or a physical separation process, and not a chemical reaction
it is a mass transfer operation use in chemical industries
it is a simple diffusion of solid to liquid phase and foam a new concentrate liquid solution
it is base on simple diffusion how to work in industries this operation
it is use for pharma, seeds and oil industries.
The processing technique employing a suspension or fluidization of small solid particles in a vertically rising stream of fluid usually gas so that fluid and solid come into intimate contact. This is a tool with many applications in the petroleum and chemical process industries. Suspensions of solid particles by vertically rising liquid streams are of lesser interest in modern processing, but have been shown to be of use, particularly in liquid contacting of ion-exchange resins. However, they come in this same classification and their use involves techniques of liquid settling, both free and hindered (sedimentation), classification, and density flotation.
continuous distillation with rectification process and its working principal with diagram and also its use in industrial applications.
design and operations explained.
Absorption & indusrial absorber,Gas Absorption,Equipments,Absorption in chemical Reaction,Absorption in Packed Tower,Absorption for counter current,Choice of Solvent,Continuous Contact Equipment,Height Equivalent to Theoretical Plate,HETP
Presentation on Azeotropic and Extractive Distillation. Introduction about distillation, azeotropic and extractive distillation and the difference between them.
Agitation and Mixing are two important unit operations used in industries such as Impellers agitators are widely used to circulate the liquid through the vessel in which the dispersion of liquids and gases into other liquids like mixing of stiff paste, elastomers and dry solids powders takes place.
Types of Distillation & column internalsBharat Kumar
More:- https://chemicalengineeringworld.com
Distillation is a method of separating the components of a solution which depends upon distribution of the substances between a gas and liquid phase, applied to cases where all components are present in both phases.
* What is distillation ?
* Types of Distillation
* Batch Distillation
* Azeotropic Distillation
* Flooding
* Priming
* Coning
* Weeping
* Dumping
* Packed Column
* Tray column
* Reflux Ratio
* Relative volatility
* Distillation column
Distillation is a method of separating mixtures based on differences in volatility (volatility is the tendency of a substance to vaporize. Volatility is directly related to a substance's vapor pressure.) of components in a boiling liquid mixture. Distillation is a unit operation, or a physical separation process, and not a chemical reaction
it is a mass transfer operation use in chemical industries
it is a simple diffusion of solid to liquid phase and foam a new concentrate liquid solution
it is base on simple diffusion how to work in industries this operation
it is use for pharma, seeds and oil industries.
In that topic their is describe the different types of Extraction Methods, Parameters for Selecting appropriate Extraction methods, types of Extract, types of Separation techniques, types of distillation, chromatographic techniques.
Dissolution is a process in which a solid substance solubilizes in a given solvent.
Method for dissolution are-
1. Beaker methods
2. Open flow through compartment system
3.Dialysis concept
This is about the large extraction, hope you all get benefit from this and feel easy to use it .
This is all about how we do extraction at large scale and what is the best procedure to do it properly, as a pharmacist we must know about little details of our formulations how they are extracted and their further process and machinery used. All the terms should be considered and handling is the most important step. This will be a ready to explain type information.
A Soxhlet extractor is a piece of laboratory apparatus invented in 1879 by Franz von Soxhlet. It was originally designed for the extraction of a lipid from a solid material. However, a Soxhlet extractor is not limited to the extraction of lipids. Typically, a Soxhlet extraction is only required where the desired compound has a limited solubility in a solvent, and the impurity is insoluble in that solvent. If the desired compound has a high solubility in a solvent then a simple filtration can be used to separate the compound from the insoluble substance.
Extraction
Various methods
Extraction with reflux
Extraction with agitation
Counter current extraction
reserve percolation process, continuous hot percolation process
decoction
infusion
digestion
Extraction with agitation
Maceration with adjustment
Key Features of The Italian Restaurants.pdfmenafilo317
Filomena, a renowned Italian restaurant, is renowned for its authentic cuisine, warm environment, and exceptional service. Recognized for its homemade pasta, traditional dishes, and extensive wine selection, we provide a true taste of Italy. Its commitment to quality ingredients and classic recipes has made it a adored dining destination for Italian food enthusiasts.
Piccola Cucina is regarded as the best restaurant in Brooklyn and as the best Italian restaurant in NYC. We offer authentic Italian cuisine with a Sicilian touch that elevates the entire fine dining experience. We’re the first result when someone searches for where to eat in Brooklyn or the best restaurant near me.
At Taste Of Middle East, we believe that food is not just about satisfying hunger, it's about experiencing different cultures and traditions. Our restaurant concept is based on selecting famous dishes from Iran, Turkey, Afghanistan, and other Arabic countries to give our customers an authentic taste of the Middle East
Roti Bank Hyderabad: A Beacon of Hope and NourishmentRoti Bank
One of the top cities of India, Hyderabad is the capital of Telangana and home to some of the biggest companies. But the other aspect of the city is a huge chunk of population that is even deprived of the food and shelter. There are many people in Hyderabad that are not having access to
Ang Chong Yi Navigating Singaporean Flavors: A Journey from Cultural Heritage...Ang Chong Yi
In the heart of Singapore, where tradition meets modernity, He embarks on a culinary adventure that transcends borders. His mission? Ang Chong Yi Exploring the Cultural Heritage and Identity in Singaporean Cuisine. To explore the rich tapestry of flavours that define Singaporean cuisine while embracing innovative plant-based approaches. Join us as we follow his footsteps through bustling markets, hidden hawker stalls, and vibrant street corners.
Ang Chong Yi Navigating Singaporean Flavors: A Journey from Cultural Heritage...
Koushik sn assignment - leaching equipment (1)
1. Leaching and its equipment
❖ It is defined as the extraction of soluble constituent from solid
material using selective liquid solvent.
❖ It is also defined as the separation of solute from solid
mixture by dissolving it in a liquid phase.
❖ There are two phases involved in Leaching:
1.Overflow phase-solute + solvent
2.Underflow phase-solid +solvent
2. Process(or)Stages involved in Leaching:
There are three major stages involved in the leaching
process.They are:
❏ Dissolution of solute in selective solvent.
❏ Diffusion of solutes through pores of particles.
❏ Transfer of solute into bulk solvent.
5. Factors influencing the rate of Leaching:
1.Particle size.
2.Solvent.
3.Temperature.
4.Agitation.
6. ➔ Basically leaching is simply known as the solid-liquid
extraction.
➔ Another example for leaching (or) solid-liquid extraction is:
1.Separation of sugar from sugar beets with hot water.
In general leaching is classified into:
a)Physical leaching.
b)Chemical leaching.
c)Bacterial leaching.
7. Classification of Leaching:
★ Fixed bed leaching.
★ Moving bed leaching.
★ Agitated leaching.
Leaching is further classified into continuous leaching and
batch leaching. The continuous leaching is classified into
co-current and countercurrent leaching. The
countercurrent leaching is further divided into variable
underflow and constant underflow. But the most used
leaching is Batch leaching.
8. Principle of leaching and its uses:
➢ Leaching can be batch,semi batch or continuous.
➢ It usually operates at an elevated temperature to increase
the solubility of solute in the solvent.
➢ Feed to a leaching system typically is solid,consisting of
basically insoluble career material and a (usually
desirable)solid compound.The feed usually must be
prepared by grinding or chopping.It is then mixed with
liquid solvent.The desired material dissolves and leaves
when liquid is drawn off as overflow.
9. Equipments of Leaching:
Some of the equipments of leaching are:
1. Agitated vessels.
2. Dorr thickeners.
3. Kennedy extractor.
4. Bollman extractor.
5. Rotocel extractor.
11. Rotating extractor:
● It is actually a horizontally revolving cylindrical vessel.
● It is provided with large hatch for loading and unloading
the solids to be extracted and a drain line for loading the
extractant and draining off the extract.
● The vessel provided with baffle plates perpendicular on
interfacial surface.
12.
13. Kennedy extractor:
1. It is originally used for leaching tannins from tanbark. It is
now used for oilseed.
2. The solids are leached in a series of tubs and are pushed
from one to next in cascade by paddles, while the solvent
flows in counter-current .
3. Perforation in paddles permit drainage of solids between
stages.
14.
15. Bollman extractor:
❏ It is mainly used for the recovery of additional oil from the
residues obtained after mechanical pressing of solids.
❏ The bollman extractor essentially consists of vapour tight
vertical chamber in which a series of perforated baskets
are attached to chain conveyor.
❏ As the solids and solvent flow co-currently down the right
hand side of machine, the solvent extracts more oil.
❏ Simultaneously fine solids are filtered out of solvent,so
that clean full miscella pumped at outlet provided at right
hand bottom.
16. ❏ The liquid percolates down through moving baskets and is
collected at bottom as strong solution or full miscella.
❏ The baskets moving upward on left are leached counter
currently by fresh solvent sprayed on top basket.
❏ The wet flakes are dumped and are removed continuously
using spray conveyor.
❏ Usually the conveyor speed is one revolution per hour and
solvent to fresh meal ratio is 1.
17.
18. Rotocel extractor:
★ A horizontal basket is divided into walled compartments
with floor that is permeable to liquids rotates slowly about
vertical axis.
★ The solids are admitted to each compartment at the feed
point.
★ It is mainly made up of stainless steel.
