Enhanced selectivity in the preparation of linear alkylbenzenes using hexagonal mesoporous silica supported aluminium chloride

P M  Price; J H  Clark; K  Martin; D J  Macquarrie; T W  Bastock

Enhanced selectivity in the preparation of linear alkylbenzenes using hexagonal mesoporous silica supported aluminium chloride

P M Price, J H Clark, K Martin, D J Macquarrie, T W Bastock

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

For decades sulphonated linear alkylbenzenes have been one of the worlds most important detergents. Industrially, their preparation involves the use of either aluminium chloride or hydrogen fluoride as catalysts in the alkylation stage of the reaction. The use of these catalysts presents severe problems in terms of both their environmental impact and their lack of selectivity towards the desired product. Solid acids, such as zeolites, can overcome these problems but at the expense of activity, It has now been discovered that by chemically supporting aluminium chloride on a MCM-41 type silica a reuseable catalyst is produced. It can be easily separated from the products and is environmentally benign, In addition, the new catalyst exhibits significant improvements in selectivity towards both the monoalkylated product and the preferred 2-phenyl isomer, Selectivity can be further increased by maximizing the relative activity of the catalytic sites situated within the pores of the catalyst.

Original language	English
Pages (from-to)	221-225
Number of pages	5
Journal	ORGANIC PROCESS RESEARCH
Volume	2
Issue number	4
Publication status	Published - 1998

Cite this

@article{265a93721f494cf4a4647f44f6b2883e,

title = "Enhanced selectivity in the preparation of linear alkylbenzenes using hexagonal mesoporous silica supported aluminium chloride",

abstract = "For decades sulphonated linear alkylbenzenes have been one of the worlds most important detergents. Industrially, their preparation involves the use of either aluminium chloride or hydrogen fluoride as catalysts in the alkylation stage of the reaction. The use of these catalysts presents severe problems in terms of both their environmental impact and their lack of selectivity towards the desired product. Solid acids, such as zeolites, can overcome these problems but at the expense of activity, It has now been discovered that by chemically supporting aluminium chloride on a MCM-41 type silica a reuseable catalyst is produced. It can be easily separated from the products and is environmentally benign, In addition, the new catalyst exhibits significant improvements in selectivity towards both the monoalkylated product and the preferred 2-phenyl isomer, Selectivity can be further increased by maximizing the relative activity of the catalytic sites situated within the pores of the catalyst.",

author = "Price, {P M} and Clark, {J H} and K Martin and Macquarrie, {D J} and Bastock, {T W}",

year = "1998",

language = "English",

volume = "2",

pages = "221--225",

journal = "ORGANIC PROCESS RESEARCH",

issn = "1083-6160",

publisher = "American Chemical Society",

number = "4",

}

TY - JOUR

T1 - Enhanced selectivity in the preparation of linear alkylbenzenes using hexagonal mesoporous silica supported aluminium chloride

AU - Price, P M

AU - Clark, J H

AU - Martin, K

AU - Macquarrie, D J

AU - Bastock, T W

PY - 1998

Y1 - 1998

N2 - For decades sulphonated linear alkylbenzenes have been one of the worlds most important detergents. Industrially, their preparation involves the use of either aluminium chloride or hydrogen fluoride as catalysts in the alkylation stage of the reaction. The use of these catalysts presents severe problems in terms of both their environmental impact and their lack of selectivity towards the desired product. Solid acids, such as zeolites, can overcome these problems but at the expense of activity, It has now been discovered that by chemically supporting aluminium chloride on a MCM-41 type silica a reuseable catalyst is produced. It can be easily separated from the products and is environmentally benign, In addition, the new catalyst exhibits significant improvements in selectivity towards both the monoalkylated product and the preferred 2-phenyl isomer, Selectivity can be further increased by maximizing the relative activity of the catalytic sites situated within the pores of the catalyst.

AB - For decades sulphonated linear alkylbenzenes have been one of the worlds most important detergents. Industrially, their preparation involves the use of either aluminium chloride or hydrogen fluoride as catalysts in the alkylation stage of the reaction. The use of these catalysts presents severe problems in terms of both their environmental impact and their lack of selectivity towards the desired product. Solid acids, such as zeolites, can overcome these problems but at the expense of activity, It has now been discovered that by chemically supporting aluminium chloride on a MCM-41 type silica a reuseable catalyst is produced. It can be easily separated from the products and is environmentally benign, In addition, the new catalyst exhibits significant improvements in selectivity towards both the monoalkylated product and the preferred 2-phenyl isomer, Selectivity can be further increased by maximizing the relative activity of the catalytic sites situated within the pores of the catalyst.

M3 - Article

SN - 1083-6160

VL - 2

SP - 221

EP - 225

JO - ORGANIC PROCESS RESEARCH

JF - ORGANIC PROCESS RESEARCH

IS - 4

ER -