Ethyl acetate is low in toxicity, good in volatility, sweet in taste and slightly fruity and refreshing. Therefore, it is not only used as perfume essence in toilet water, fruity perfume, ylang ylang and other perfumes to enhance fragrance, but also used as food essence and wine essence in the food industry, and is suitable for the preparation of fresh fruit essences such as cherries, peaches, apricots, grapes and strawberries, as well as brandy, whisky, rum, yellow wine and yellow wine.
Ethylene additive process
Using heteropoly acid metal salt or heteropoly acid supported on silica as catalyst, acetic acid and ethylene react at 65438 050℃ and 65438±0.0 MPa to produce ethyl acetate. The chemical reaction equation is as follows:
ch 3c ooh+C2 H4→ch 3c OOC 2h 5( 150℃. 1.0 MPa)。
The above reaction process is carried out in a multi-stage tubular reactor, and the heat of reaction is removed between each stage to suppress the occurrence of side reactions. As far as ethylene is concerned, the conversion of acetic acid is 66% and the selectivity of ethyl acetate is 94%. As abundant ethylene raw materials are directly utilized, the production cost can be reduced. Many world-famous multinational companies have developed this production process. 1998, a 50 kt/a production plant was built in Myraku, Indonesia by using the patented technology of Showa Denko, Japan.
Refer to the above content: Baidu Encyclopedia-Ethyl acetate