Typical Assemblies

Distillation is an operation whereby the vaporization of a liquid mixture yields a vapor phase containing a component and it is desired to recover this component in a pure state. This Simple Distillation Unit is suitable for mixtures containing a volatile solvent with non volatile impurities.

It is a general purpose unit suitable for working at atmospheric pressure.  The still has a spherical vessel fitted with either heating mantle or heating bath.  The vapor phase containing the component passes through the vapor pipeline gets condensed in the condenser and the component in a pure state is collected in a receiver.

The still has a large charging neck along with a thermometer pocket and a feed pipe with control valve through which the liquid to be distilled is added.

Reaction is the chemical combination or break down of one or more chemical compounds to produce one or more reaction products.  It is a common unit operation in chemical processing.

It suit customers needing a versatile Reaction Unit for batch chemical preparations in the manufacture of fine chemicals and pharmaceuticals.  It is also suited to pilot plant work and instructional purpose.

The still has a spherical vessel fitted with either heating mantle or heating bath.  The stirrer is carried by a standard stirrer drive and seal assembly in which only resistant material i.e. PTFE and glass are exposed to the vessel content.

A reflux distillation adaptor and reflux condenser are fitted to the side neck of the vessel so that reactions may conveniently be carried out under reflux followed by recovery of the volatile material.

A large charging neck and liquid feed vessel with control valve and feed pipe are incorporated into the unit.  Thermometer pockets are fitted to the vessel and reflux adaptor.

This Reaction Distillation Unit combines features of fractional distillation unit and reaction unit and is used when reaction processes involving distillation takes place.

In operations where the reaction process is followed by distillation, the vapor phase passes up through the fractionating column, packed with glass raschig rings, into the manually operated reflux divider and condenser.  Here, the vapor is condensed and can be either allowed to flow back into the column or be run-off by the reflux distillation adaptor into the product receiver.

After condensation, the distilled product passes through a product cooler before entering the twin product receivers.  These are arranged to enable distillate to be removed whilst the still is working under vacuum.

Fractional Distillation Unit is an operation whereby the vaporization of a liquid mixture yields a vapor phase containing more than one component, and it is desired to recover one or more of these components in a pure state. It is a major unit operation in the chemical processing industry for the purification or separation of liquid mixtures.

It is a general purpose unit suitable for working at atmospheric pressure or under vacuum. The still has a spherical vessel fitted with either heating mantle or heating bath.  The fractionating column is packed with raschig rings.  A reflux condenser is fitted at the head of the column above the reflux divider. 

Distillate leaving the column is cooled in a product cooler and then enters the twin receivers.  These are arranged to enable distillate to be removed whilst the still is working under vacuum.

The still has a large charging neck along with a thermometer pocket and a feed pipe with control valve through which the liquid to be distilled is added.

We offer Hcl Absorption Column. Glass has proved to be an unrivalled material of construction for plant handling Hydrochloric Acid in all concentrations. The absorption of Hydrogen Chloride in the chemical industry is a typical example where glass can be used to the best advantage.

The arrangement of the absorber is common to all sizes in the range. The gas is introduced into the column at a point below the raschig ring packed section and it rises countercurrent to a descending stream of acid. “Make” water enters above the reflux condenser and inert gases are vented from the head of the column. The heat of absorption of the HCL gas boils the liquid phase near the top of the packed section, the resulting vapor is condensed, the condensate being diluted by the “Make” water and returned to the packed section. Below the gas inlet the hot concentrated product is passed through an acid cooler before flowing to storage.

This type of absorber is primarily suited to the production of concentrated acid from gas streams containing little impurity.

We offer Overhead Gear Over Reactor. For small batch operations, glass spherical vessels up to 200 litres in capacity are normally used and where larger batches are required, glass-lined and stainless steel vessels are commonly used.  By combining glass process plant equipment with other materials, we can offer well proven units in a variety of sizes.

In operations the vapor phase passes up through the column either fractionation, packed with glass raschig ring, or vapor in to the condensers, which are lined up in a series.  Here, the vapor is condensed and can be either allowed to flow back into the vessel or be run-off into the product receiver.

In case the vapor carries two phases the light phase and the heavy phase the unit can easily be modified so that the light phase flows back into the vessel as the reflux and the heavy phase flows into the receiver as the product.

Glass columns can vary in diameter from 80 to 450 mm and columns have been erected to heights of up to 15 meters.  Glass distillation units can operate at atmospheric pressure or at vacuum.

Jacketed Reactors are similar to Spherical/Cylindrical Glass Vessels but have provision to circulate hot, cold or cryogenic liquid through the jacket. Transparency permits visibility & Reaction process can be watched clearly. Features like Thermometer Pocket, Motor Driven Stirrer, Gas Inlets, Etc are incorporated as per individual’s requirement. Assemblies like Simple Distillation Unit, Reaction Distillation Unit, Fractional Distillation Unit, Etc. can be installed above these reactors if required.

This Liquid-Liquid Extraction Unit is a basic design for the extraction of a liquid with either lighter or heavier solvents. These units are suitable for production work and are particularly useful as pilot plant for test work on liquid / liquid systems.

In operation, solvent is evaporated in the still, condensed and the reflux flows by gravity to the extraction column.  The setting of the valves is chosen to route the solvent stream to either the upper or lower distributor depending on whether heavier or lighter solvents are being used.  The distributor breaks up the solvent stream into small droplets which pass through the extraction column and coalesce in the solvent layer at the top or bottom of the column.

When the extraction cycle is complete, the extracted liquid is drained from the column and the extract may then be concentrated with recovery of pure solvent.

This Solid-Liquid Extraction Unit is a simple standard plant for the extraction of solids with volatile solvents, a prominent feature being the supply of a continuous flow of fresh solvent to the solid in the extraction vessel which promotes efficient extraction in the shortest time.

In operation, solvent is evaporated in the still, condensed and the reflux flows by gravity to the base of the extraction vessel and percolates upward through the material.  The extract as it is continually displaced by fresh solvent returns to the still for evaporation.

When the extraction cycle is complete, pure solvent can be recovered and the solution in the still concentrated.

Rotary Film Evaporator is a device for gently and efficiently evaporating solvents from a mixture. It consists of a heated rotating vessel (usually a large flask) which is maintained under a vacuum though a tube connecting it to a condenser. The rotating flask is heated by partial emersion in a hot water bath. The flask's rotation provides improved heat transfer to the contained liquid; the rotation also strongly reduces the occupancies of 'bumps' caused by superheating of the liquid. The solvent vapors leave the flask by the connecting tube and are condensed in the condenser section. The condenser section is arranged so that the condensed vapors drain into another flask where they are collected. It is a very efficient way of rapidly removing large quantities of solvent. The major use in chromatography is the recovery of non- volatile solutes in preparative chromatography and the recovery of solvents for recycling. The device is also used for preparing coated supports for gas chromatography. For this application a weighed amount of support is placed in the flask, the required amount of stationary phase dissolved in excess of solvent is added to the solid and mixture tumble dried. This procedure has two advantages; as well as drying the support it ensures a very even distribution of the stationary phase throughout the support.

It is particularly useful for the concentration of heat sensitive materials: two prime advantages are a minimum contact time of the material with the heating surface and rapid evaporation provided by the high rate of heat transfer.  It can be operated under reduced pressure conditions or at atmospheric pressure and can be used for both batch and continuous operations.

 In operation the process liquid is gravity fed into the bottom of the calandria tube until the liquid level in the calandria tube is about 300 mm higher than the end of the steam jacket.  As steam is introduced, the liquid boils, creates a larger volume of vapor which rises dragging with it a thin film of liquor, up the inside wall of the calandria tube into the cyclone.

 In the cyclone, the liquid and vapor are separated.  The liquid passes into two receiver vessels which are arranged to facilitate continuous removal of liquid under normal or reduced pressure conditions.  Alternatively, the liquid can be recycled back into the calandria tube for further concentration.

 The vapor from the cyclone is fed through a total condenser into two receiver vessels which again are arranged to facilitate continuous removal of the condensed liquid.