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Technology Profile
One-Stage Technology of Preparation
of Mono-Brom-Ortho-Xylol
Description
The mono-brom-orto-xylol technology is elaborated by by
means of low-temperature oxidative bromination of o-xylol
by mixture of bromhydric acid and sodium hypochlorite at
20-40°C. Yield: from 95,2 to 99,3%. B.p.89-90°.
Innovative Aspects and Main Advantages
The process in comparison with known ones is high-selective,
one-stage, economically useful, as excludes a use of
deficit bromine, catalysts (iodine and iron mixtures) and
highly explosive hydrogen peroxide. Purposeful product is
prepared with yield of 99,3% for taken o-xylol and does not
require an additional purification (recrystallization from solvent).
Areas of Application
It is used as precursor in production of vitamin B2 as well
as in preparation of pharmaceutical preparations and dyes
and also as reagent in the chemical industry.
Stage of Development
The technology has been introduced in Bolokhov industrial
complex of synthetic products and vitamins of Tula region
in Russia with productivity of 62t/y.
There is Inv. certificate USSR N 1383728, 1987. There is a
laboratory regulation.
Contact Details
Institute of Polymer Materials
Azerbaijan National Academy of Sciences
Contact persons: Prof. Dr. Salakhov Mustafa Sattar oglu
Address: 124, S.Vurgun St.
AZ5004, Sumgait, Azerbaijan
Fig. 1. Mono-brom-ortho-xylol.
Tel: (+994 12) 497 6038
Fax: (994 18) 642 0400
Email: salahov_mustafa@mail.ru
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