Sulfonation Chemistry – more sustainable approaches

CABB‘s improved process. Reaction of aromatic compound with SO3 in liquid SO2 at -20°C. Reaction of sulfonic acid with thionyl chloride. Reaction mixture is heated to 25°C which leads to evaporation of SO2. Reaction of sulfonyl

Sulphonation with 20% Oleum | SpringerLink

The organic feedstock, alkylbenzene, is reacted with a 10–15% excess (by weight) of 20% oleum to ensure high conversions in a short time. As the reaction is both rapid and

Sulfation and sulfonation-Springer

Th acid mix is refluxing the mixture, andfinally heating to150-200 ~ then allowed todigest foran additional 3 to 4 hours at. F.to complete the reaction. T tal batch time on a 115~to complete the sulfonation to 97 or 98% re-commercial scale may be 3 to 8 hours. During action the water which isliberated there- acted.

16.10: Nitration and Sulfonation-Chemistry LibreTexts

1. SO 3 and H 2 SO 4 (fuming) 2. 3. Sulfuric acid is needed in order for a good electrophile to form. Sulfuric acid protonates nitric acid to form the nitronium ion (water molecule is lost). The nitronium ion is a very good electrophile and is open to attack by benzene. Without sulfuric acid the reaction would not occur. 4.

Sulfonation — Wikipédia

Sulfonation. La sulfonation est une réaction chimique permettant d’introduire un groupe sulfonique – SO 3 H sur la structure carbonée d'une molécule. C'est une des plus importantes réactions de la chimie organique industrielle avec la nitration et la chloration 1 .

Nitration and Sulfonation of Benzene-Chemistry LibreTexts

1. SO 3 and H 2 SO 4 (fuming) 2. 3. Sulfuric acid is needed in order for a good electrophile to form. Sulfuric acid protonates nitric acid to form the nitronium ion (water molecule is lost). The nitronium ion is a very good electrophile and is open to attack by benzene. Without sulfuric acid the reaction would not occur. 4.

Sulfonation | Suzuki Coupling | Services-CABB Chemicals

The reactivity and selectivity of sulfur trioxide, oleum, sulfuric acid, chlorosulfonic acid and sulfur trioxide-amine complexes allow us to meet customer requirements, for a wide variety of substrates including polymers. CABB provide SO3 sulfonation and Suzuki coupling services for the reactions of fine chemicals and intermediates.

A simple and efficient synthesis protocol for sulfonation

In this study, the sulfonation of nitrobenzene (NB) with liquid SO 3 was carried out in a microreactor system to target the exploitation of green technology to reduce or eliminate

Ballestra-SULPHUREX Sulphonation/Sulphation

No external cooling requirements and no need of chilling water equipment Extra low energy consumption Ballestra has implemented the world’s largest sulphonation plants (24.000 Kg/h as 100% active surfactant) and is constantly optimizing its process through the continuous work of its R&D Centre.

General, Raw Materials, MSDS, Suppliers, Product, Process, Patent,

In that oleum the 20% oleum contains SO3 and the remaining 80% contains H2SO4 by weight. The application of sulfuric acid and oleum are produced the industrially in contact plants. The 20% oleum is mostly used for the sulfation then the oleum sulfonation is mainly used for the sulfonation of alkyl benzene.

Chemithon History

Beginning with a market in the U.S. for manufacturers of surfactants, detergents and specialty chemicals, Chemithon soon discovered a worldwide need for quality sulfonation equipment. Chemithon currently has more than 450 operating plants in almost every part of the world, includ­ing Africa, South America, Europe and many areas of the Pacific Rim-

Sulphonation Plant-Marsina Engineering srl

Sodium alpha olefin sulfonate (AOS) is an anionic surfactant widely used for laundry and personal-care products. Various chain lengths alpha olefins, typically C 12 – C 18, may be sulphonated in the multi-tube film reactor and afterwards neutralized. Used in the manufacture of domestic and industrial detergents. Used for.

CHEMICAL ENGINEERING EQUIPMENT DESIGN

Sulfonation of the dodecylbenzene may be carried out continuously or batch-wise under a variety of operating conditions using sulfuric acid (100 percent), oleum (usually 20

US Patent for Sulfonation process Patent (Patent # 4,308,215

EXAMPLE 3 Sulfonation of tridecylbenzene with 20% oleum in annular tube reactor Tridecylbenzene (Nalkylene 600) was introduced into the inner (membrane) tube (0.095 ml/min) and Oleum (fuming sulfuric acid containing 20% sulfur trioxide) was introduced into the annular channel (0.10 ml/min) of a 22' annular tube reactor (1340 E.W.)

2 A BRIEF DESCRIPTION OF THE SULPHONATION PROCESSES

S03 or S~ stripped from 65% oleum with dried process air, 20% oleum and chlorosulphonic acid. The diluted S03 in air reacts in gas-liquid contact reactors with the liquid organic

Ballestra-SULPHUREX Sulphonation/Sulphation

4.9: Halogenation, Sulfonation, and Nitration of Aromatic Compounds

F-TEDA-BF 4. The overall equation for the formation of nitronium ions by the action of sulfuric acid on nitric acid is. $\ce {\sf {HNO3 + 2H2SO4 <=> H3O+ + NO2+ + HSO4- }}$. The ability of compounds such as nitronium tetrafluoroborate to bring about the nitration of aromatic compounds is good evidence in support of the proposed mechanism.

Chemithon Detergents

Chemithon Detergents. Overview. The largest Chemithon division emerged from the company's invention of the continuous oleum sulfonation process in the mid-1950s. Today, our customers use Chemithon air-SO3 sulfonation systems to produce surfactants used in a wide variety of consumer and industrial products, as well as oil additives.

The Sulfonation of Benzene-Chemistry LibreTexts

Warm benzene under reflux at 40°C with fuming sulfuric acid for 20 to 30 minutes. C6H6 +H2SO4 → C6H5SO3H +H2O (1) (1) C 6 H 6 + H 2 S O 4 → C 6 H 5 S O 3 H + H 2 O. Or: The product is benzenesulfonic acid. The electrophile is actually sulfur trioxide, SO 3, and you may find the equation for the sulfonation reaction written:

Sulphonation Technology in the Detergent Industry | SpringerLink

The book covers sulphonation of alkylbenzenes, primary alcohols, alcohol ethers, alpha-olefIns and fatty acid methyl esters, with a strong emphasis on the sulphur-based S~/air sulphonation technology. The first part deals with raw material specifications, hazards, storage, handling and physical properties. In the following section the process

Sulfonation/Sulfation Processing Technology for Anionic

Sulfonation/Sulfation Processing Technolog y for Anionic Surfactant Manufacture 271 2.2 Primary alcohol sulfates (PAS) PAS are categorized in different groups rega rding the number carbon that compose them: The so called lauryl alcohol sulfates C 12-C 14, the tallow alcohol sulfates (TAS) C 16-C 18, and

Chemithon Detergents

Today, our customers use Chemithon air-SO3 sulfonation systems to produce surfactants used in a wide variety of consumer and industrial products, as well as oil additives. Our

4.4: Nitration et sulfonation du benzène-Chemistry LibreTexts

Sulfonation du benzène. La sulfonation est une réaction réversible qui produit de l'acide benzènesulfonique en ajoutant du trioxyde de soufre et en fumant de l'acide sulfurique. La réaction est inversée en ajoutant de l'acide aqueux chaud à l'acide benzènesulfonique pour produire du benzène.

Oleum, for sulfonation-Big Chemical Encyclopedia

Oleum sulfonation requires relatively inexpensive equipment and can be accomplished by either batch or continuous processes. However, the oleum process has major disadvantages in the SO3 cost/lb (as H2SO4), the need for spent acid stream disposal, and potential corrosion problems due to sulfuric acid generation .