Sulfonation

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  • A Industrial chemical process used to make a diverse range of products such as dyes and color intensifiers, pigments, medicinal, pesticides and organic intermediates is called Sulfonation.

  • Reactions are carried out using, concentrated sulfuric acid, Oleum or sulfur tri oxide as the sulfonating agent.

  • A difficult reaction to perform on an industrial scale because the reaction is rapid and highly exothermic.

  • An electrophilic chemical reaction where a sulfonic group is incorporated into a molecule with the capacity to donate electrons.

  • Sulfonation of polymers is a method for making proton exchange membranes used in electrochemical devices.

  • One of the important processes to produce an anionic surfactant. One of the derivatives developed from methyl ester is methyl ester sulfonate, an anionic surfactant formed by Sulfonation of methyl ester.

  • Due to excellent surface active properties and resistance to hard water, Sulfonated methyl ester is used as wetting agents and detergent component.

  • The project cost to install sulfonation plant is estimated upto 8 Crores.

  • Commercial scale Sulfonation reactions require special equipment and instrumentation that allows tight control of the mole ratio of SO3 to organic and rapid removal of the heat of reaction.

  • The process equipment cost is an important factor to be considered in choice of a Sulfonation process.

  • Oleum Sulfonation offers advantages over other methods of sulfonation, most notably allowing for versatility in feedstock selection.

  • Gas flow splitting enables the use of multiple reactors, while sharing a common gas plant and tail gas treatment system.

  • Mills can use a catalyzed CTMP process with an interstage sulfonation process for aspen pulp to obtain a higher tensile strength and better optical properties.

  • In the design of sulfonation plants, important factor to be considered is need for precise control over gas/liquid contacting.

  • Mainly of anionic surfactants, Sulfonation plants are scattered around the world in production units with capacities varying from 3.000 to 50.000 tons/year.

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