Sulfonation and Sulfation

Gilbert, Everett E.; Jones, E. Paul.

doi:10.1021/ie50501a024

Cited by 10 publications

(9 citation statements)

References 35 publications

(44 reference statements)

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“…The main point in this method of preparation is to obtain the free sulfonic acids without any sulfuric acid. There remain, for instance, 4 to 5% sulfuric acid in the p-toluenesulfonic acid manufactured by a process recently published (4), whereas the author's final product gave no precipitate with barium chloride.…”

Section: Preparation Of Sulfonic Acidsmentioning

confidence: 99%

Separation of Aryl Sulfonic Acids

Feilchenfeld¹

1956

Ind. Eng. Chem.

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Section: Preparation Of Sulfonic Acidsmentioning

confidence: 99%

Separation of Aryl Sulfonic Acids

Feilchenfeld¹

1956

Ind. Eng. Chem.

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“…in this unit process for 1951 are reviewed. following the scheme used in previous similar reviews by Lisk (24-8-50) and the present authors (142). The terms "sulfonation" and "sulfation" have, as in the past, been broadly interpreted to include all direct and indirect methods involving any reagent, for preparation of sulfonates of all degrees of known composition and purity.…”

Section: Developmentsmentioning

confidence: 99%

“…(878-6). Products obtained and ydelds were reported in a previous review (142). The olefinic sulfonates were converted to a series of derivatives by7 bromination, hydrogenation, and treatment with phosphorus pentachloride.…”

Section: Aliphatic and Alicyclic Sulfonatesmentioning

confidence: 99%

“…Sulfonation of methyl salicylate with gaseous sulfur trioxide, followed by treatment with a higher alcohol to effect ester interchange, patented in the United States as previously reviewed (142), has now been patented in England (273).…”

Section: Detergent Alkylatesmentioning

confidence: 99%

“…A British patent (61) has been issued on an improved process for preparing 2,6-dichloro-4-nitroaniline involving as possible alternative first steps the sulfonation of 4-nitroaniline or 4-nitrochlorobenzene. The analogous United States patent was previously reviewed (142).…”

Section: Detergent Alkylatesmentioning

confidence: 99%

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Sulfonation and Sulfation

Gilbert¹,

Jones²

1952

Ind. Eng. Chem.

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DIVISION, LAUREL HILL RESEARCH LABORATORY, L O N G ISLAND CITY, N. Y.Production 08 sulfonates continues to expand-notably of dodecyl benzene sulfonate detergents, benzene disulfonic acid (for resorcinol), sulfonate emulsifiers (including petroleum sulfonates), and synthetic tanning agents. A new sulfonating agent-sulfur monoxide-was reported. The most widely useful method for preparing aliphatic sulfonates was shown to b e aqueous chlorination of thiol derivatives. A new series of brilliantly colored naphthalene peri sulFonates was prepared, the color apparently arising from unusual carbon-to-sulfur unsaturation. Two detailed studies were Dublished on the rate and mechanism of aliphatic alcohol sulfation

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Tyrer Process

2010

Comprehensive Organic Name Reactions and Reagents

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This reaction is an industrial process to produce benzenesulfonic acid, involving an azeotropic removal of water at specified temperatures by passing vaporized benzene into 66° Bé. acid. The produced benzenesulfonic acid is then fused with caustic soda and water to produce phenol. Therefore, the industrial production of benzenesulfonic acid is known as the Tyrer process, and the reactor is referred to as the Tyrer sulfonator. The study explores methods to improve the efficiency of the sulfonation. Benzene vapor is used in this reaction, so the safety to both employees and the environment is always of concern. It has been found that iodine can accelerate the sulfonation of benzene. This process has industrial value in the production of benzenesulfonic acid.

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Sulfonation and Sulfation

Cited by 10 publications

References 35 publications

Separation of Aryl Sulfonic Acids

Separation of Aryl Sulfonic Acids

Sulfonation and Sulfation

Tyrer Process

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