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Rainbow Scientific Glass Industries

Pune, Maharashtra

Year of Establishment: 1981
IndiaMART Member Since: 2004
Products [12], Latest Offers [2]
Phone: +(91)-(2114)-222249

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Laboratory Products

We offer wide range of laboratory products, our range perfectly meets the purpose of various applications in industries.
Laboratory Products


Bromine Recovery Plant

Bromine Recovery Plant
The feed is acidifide with 30% HCI acid and acidified feed is fed to the scrubber by pump to Scrub uncondensed chlorine from Vent Condenser and return back to the reaction column. In some cases the part feed is preheated using effluent from the reaction column prior to the entry of reaction column and part feed is fed to the scrubber to conserve energy. Chlorine and Steam are also fed to the reaction column.

In the reaction column the feed is reacted with chlorine gas & bromine is liberated Instantly. This liberated bromine is stripped out of the solution by live steam . The bromine and water vapor stream leaves the top of the column and enters the condenser. Condensate falls into the Phase Separator where it forms two phases, the light aqueous phase (Water) being returned to the Column, while the heavy phase (Bromine) being feed the purification column. Cooling Water & Chilled Water is used as cooling media in heat exchanger provided at the top of the column to condense water vapor & Bromine.

Purification of the Bromine is achieved by distillation. Heat being introduced into the column through the reboiler. Bromine and Chlorine vapor leave the top of the Column and enter the Condenser. The Bromine gets condensed in the Condenser and falls back into the column while uncondensed chlorine vapor along with traces of Bromine escapes from the Condenser and enter into the Vent Condenser, where remaining Bromine gets condensed and back to the crude Bromine receiver. Pure bromine is cooled in a product cooler and goes to Product receivers. Guard condenser is also provided at the top of the receiver to prevent escape of bromine. Bromine is then collected in glass bottles.

From Industrial Effluents (NaBr/KBr/HBr) From Sea-Bittern. Available up to 600mm Dia.

Over View of the System

The system consists of

  • Stripping / Reaction Column - Glass
  • Cooling / Chilling Heat Exchangers
  • Phase Separator - Glass
  • Bromine Purification Column
  • Pure Bromine Condenser - Glass
  • Vent / Gurad Condenser - Glass
  • Bromine Reboiler - Glass Bromine
  • Product Cooler - Glass
  • Crude / Pure Bromine Collecting Receiver-Glass

Raw Material Requirement

  • Sea - Bittern (Brine) / NaBr / KBr / HBr
  • Chlorine Gas
  • 30% HCI

Products Specifications


  • Bromine Liquid : 99.5% (w/w, min)
  • Chlorine : 0.3% (w/w, max)

 
 

Column Component

Column Component
We offer our clients with column components which are precision engineered with quality raw materials ensuring higher durability and efficiency. We offer column component in different configurations to meet the varied requirements of clients

Features:

  • Reflux Divider - Manual / Magnetic, Magnet / Timer, Etc
  • Column Section with / without thermometer branch
  • PTFE Perforated Plate
  • PTFE Redistributors
  • Spray Feed Section
  • Packing Support
  • Raschig Ring
  • Liquid Seal
  • Feed Pipe

 
 

Custom Made Glassware

Custom Made Glassware
We undertake manufacturing of custom made glassware according to the client’s specifications such as dimensions, tolerances, applications and other relevant information. We decide the prices of the apparatus on the intricacy and the quantity desired. We enable chemists and researchers to develop, design and fabricate the necessary glassware to perform their experiments.

 
 

Gas Absorber

Gas Absorber
HCL Gas Generation (Sulphuric Acid Route)

Commercial hydrochloric acid is available in the market as 30% aqueous solution and is widely used in industry in large quantities. But for certain application e.g. in bulk drug/ pharmaceutical industry HCL gas is required in anhydrous state for critical reactions where moisture cannot be tolerated. Such users generate anhydrous HCL from commercial grade for their captive consumption. Several methods have been adopted but generation through SULPHURIC ACID ROUTE is the most reliable and handy technique.

Salient Features

  • Operational reliability - the unit can be started/stopped in seconds.
  • Compact and continuous unit - all operations viz. drying, mixing, gas generation and cooling achieved in same unit.
  • Available in wide range capacities - from ± 5kg to 200kg/hr of dry HCL.
  • Except cooling water no other utility e.g. Steam, chilled water etc. are required.
  • Anhydrous gas.
  • Ease of installation.
  • Capable of operating from 25-120%.
  • Negligible pressure drop.
  • High efficiency - 99%

Raw Material Requirement

The indicative requirements for 20 kg/hr HCL gas generator are given below:


  • 30% HCL - 70
  • 98% H2SO4 - 170
  • Cooling water 2 m³/hr

HCL Gas Generation (Azeotropic Boiling Route)

Commercial hydrochloric acid is available in the market as 30% aqueous solution and is widely used in industry in large quantities. But for certain applications e.g. in bulk drug/pharmaceutical industry HCL gas is required in gaseous form. Such users generate anhydrous HCL from commerical grade for their captive consumption. Several methods have been adopted and genertion through BOILING ROUTE is also a reliable technique.

Salient features

  • Operational reliability
  • Available in wide range capacities - from 10kg to 200kg/hr of dry HCL.
  • Except commercial hydrochloric acid, no other raw-material is required.
  • The spent acid about 21% HCL usually finds use for captive consumption.
  • Capable of operating from 25-100%.
  • Easy of installation.
  • Negligible pressure drop.

Raw Material & Utility Requirements

The indicative requirements for 20kg/hr HCI gas genera
tor are given below

  • 30-32% HCI, (kg/hr) - 250
  • Cooling water at 30°C (M3/hr) - 3.5
  • Chilled brine at - 10°C (M3/hr) - 4
  • Saturated Steam at 2.5 Kgs/cm² - g (Kgs) - 50


 
 

Glass Valves

Glass Valves
We produce glass valves which are manufactured from borosilicate glass, bellows and plugs are of PTFE thus ensuring maximum resistance to corrosion. The transparency of borosilicate glass from which the body valve is made makes it possible for valve operation at all times. They are mainly used in chemical, pharmaceutical, food/drink and allied industries.

 
 

Jacketed Reactor

Jacketed Reactor
We are engaged in providing jacketed reactors in various sizes and capacities. These are excellent in working conditions and can be customized according to the technical details furnished by the client. Some of the features are mentioned below:
 
  • Cooling coil
  • Hot oil heating system with temperature control

 
 

Liquid Extraction Unit

Liquid Extraction Unit
Liquid extraction, sometimes called solvent extraction, is the separation of constituents of a liquid solution by contact with another insoluble liquid. The unit described here is for a semi-batch operation.

The liquid to be extracted is poured into an extraction vessel. Solvent is boiled in a reboiler vessel and condensed in an overhead condenser, the condensed liquid collecting in a reflux divider and passing through pipework to the extraction vessel. The pipework incorporates valves in order that the solvent can enter the extraction vessel at either the base or the top, depending on the relative densities of the solvent and liquid to be extracted. The solvent and the extracted liquid pass back to the reboiler and process is repeated unit the extraction is complete. The extraction vessel is then drained and the solvent evaporated from the reboiler vessel and collected in the extraction vessel enabling the two liquids to be drained from their respective vessels

The units are available in vessel size of 10, 20 & 50 Ltr. and is suitable for operation under atmoshepric pressure.

Reactor
Capacity

Bath KW

Vapour
Line

Extraction
Vessel

Condenser

Reference

10 L

2

40mm x 1m

10 L

0.35

SFLLU 10

20 L

3

50mm x 1m

20 L

0.5

SFLLU 20

50 L

4.5

80mm x 1m

50 L

1.5

SFLLU 50


 
 

Shell And Tube Heat Exchanger

Shell And Tube Heat Exchanger
Shell & Tube heat exchangers offer large surface area in combination with efficient heat transfer and compactness. These are widely used in industries for various duties like cooling, heating, condensation, evaporation etc. GOEL are the pioneers in the field of glass shell and tube heat exchangers in India and their product has wide market acceptability.

Salient Features :

  • Universal corrosion resistance an excellent alternative to expensive MOCs like graphite, hastelloy, copper titanium, tantalum and other exotic metals.
  • Excellent heat transfer as fouling does not occur on smooth glass surfaces.
  • Flexibility of installation vertical/horizontal.
  • Easy replacement of tubes for repair and cleaning.
  • Available in wide range of HTAs.
  • Ease of installation due to light weight.
  • Economical.
  • Suitable for applications where large HTAs are required in limited space.



 
 

 

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