FIELD: chemistry.
SUBSTANCE: invention relates to synthesis of alkyd resins – the base of alkyd varnish; it can be used in chemical and varnish industry for different technological processes. The invention concerns an installation for alkyd resin synthesis and contains sequentially installed reactor, film heaters, circulation pump for pumping vegetable oil from the reactor through film heaters and returning it to the reactor. The reactor through an azeotropic mixture water-xylene is connected to a vertical heat-exchanger-refrigerator, which through a condensed flow of partial xylene condensation is connected to the reactor, and through the azeotropic mixture – to a horizontal heat-exchanger-refrigerator connected to a separation vessel, which through the xylene flow is connected to the reactor. A heated mixture is additionally installed in the installation, connected to the reactor, intended for loading of bulk reagents: pentaerythritol at the first stage of transesterification, phthalic and maleic anhydrides at the second stage of polycondensation.
EFFECT: stable operation of an installation for alkyd resin synthesis.
1 cl, 1 dwg
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