It is obtained by the condensation of butyraldehyde
with polyvinyl alcohol (PVA), which is a derivative of poly vinyl acetate (PVAc), in the presence of an acid catalyst [3-5].
was a critical by-product from ozonation of 1-butanol.
com)-- Direct applications of propylene include, besides the plastic polypropylene, production of important chemicals such as propylene oxide, acrylonitrile, cumene, butyraldehyde
, and acrylic acid.
The study by market research institute Ceresana pointed out that its direct applications include production of important chemicals such as propylene oxide, acrylonitrile, cumene, butyraldehyde
and acrylic acid, besides the plastic polypropylene.
However, it disperses into water and butyraldehyde
at a temperature higher than 160[degrees]C (Kabanov et al.
The isolated enzyme converts TMA-Butanol (considerable structural resemblance to choline as a theme) into trimethylamino butyraldehyde
(TMABaldehyde) (Hassan et al.
In conjunction with the 2-EH expansion, the company will increase butyraldehyde
capacity by 40,000 metric ton at the site.
Possible TRI Chemicals Used or Generated in Processes Metal and Metal Fume Gaseous Emissions * Copper and Compounds Aniline Chromium and Compounds Acetaldehyde Lead and Compounds Ammonia Manganese and Compounds Butyraldehyde
Zinc and Compounds Propionaldehyde Zinc Dust/Fume Benzene Aluminum Dust/Fume Formaldehyde Cobalt and Compounds n-Hexane Nickel and Compounds Naphthalene Phenol Styrene Triethylamine Toluene Xylene (mixed isomers) * Based on CERP/Technikon LLC review of test data as of May 2007.
In a pelletized concentrate, the butyraldehyde
level is less than 800 parts per million by weight, satisfactory for most applications.
The other product of dehydrogenation is acetaldehyde, which can be used as an intermediate in the production of acetic acid, acetic anhydride, ethyl acetate, butyraldehyde
, crotonaldehyde, n-butanol and many other chemicals.
This is especially true for the butyraldehyde
market, where only 3% of the production is sold on the merchant market.
The major degradation products of MTBE by conventional ozonation and the advanced oxidation process (ozone/hydrogen peroxide) under drinking water treatment conditions are TBF, TBA, 2-methoxy-2-methyl propionaldehyde, acetone, methyl acetate, hydroxy butyraldehyde
, and formaldehyde.