Waste Chemical Industries

The first relates to the processing, disposal, destruction of environmentally hazardous by-products and waste chemical and other industries industry so as to eliminate an environmental hazard, or at least reduce it to acceptable values. Another trend is more promising, due to the development of new industrial processes which would allowed to do at all without environmentally hazardous products (including side) or to reduce their use and allocation to a minimum (Fig. 1). Fig.1 Scheme of obtaining and making products that meet the principles of green chemistry Significant branch of modern chemical industry is the manufacture of products used in the processes of oil fields and oil transportation. Below we consider some classes of oilfield reagents, and examples available including commercial products that meet the requirements of green chemistry. Demulsifiers One of the major classes of reagents used in the preparation of oil are demulsifiers, submitted to date anions (cations) active and nonionic surfactants, such as block copolymers of ethylene oxide and propylene oxide, ethoxylated amines, higher fatty alcohols, alkylphenols and others 3. Even with relatively low consumption of reagents (40-100 g / t) rather acute problem of disposal of surface-active substances produced by many thousands of tons of the modern chemical industry. In this light, were obtained demulsifiers based products wood chemical production – tall oil, but their effectiveness was lower than that of demulsifiers on oxyethylated fatty acids 4. On the basis of xylitol (derived from Waste gin) and synthetic fatty acids was obtained by nonionic demulsifier 5 showed a result of industrial tests of high efficiency.

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