Production and analysis of ethyl and butyl ethers from fatcontaining waste of the food and pulp and paper industries

In the conditions of natural resources depletion, and Climate changes caused by the greenhouse effect, world community is focused on exploring new raw materials, secondary raw materials, including waste that can be usefully used. Fat-containing waste generated in the food, pulp and paper, leather and other industries, catering facilities have significant potential in this field. Analysis of official statistics on the fat-containing waste management in the Russian Federation shows that about 22% of such waste is disposed in landfills and is irretrievably lost as raw materials. And those fat-containing wastes that are utilized are used in the production of low-profit products. At the same time, fatcontaining waste can be used to receive products that fully replace analogs produced from petrochemical and chemical raw materials. In the total mass of fat-containing waste, a significant part is made up of products with a high content of free fatty acids, which serve as raw materials for receiving a wide range of useful products. Therefore, research in this way is relevant and promising. In this study, ethyl and butyl ethers were received from waste from the food and pulp and paper industries and studied. Then ethyl and butyl ethers received from waste were tested as plasticizers for compatibility with polyvinyl chloride. A toxicity assessment was carried out for the initial waste, ethyl and butyl ethers thereof, and plasticizers with polyvinyl chloride. Based on the analysis of results, recommendations were formulated for the practical application of the method for the utilization of such waste. The novelty of the research is demonstrating the possibility of using esters received from fatcontaining waste to replace petrochemical synthesis products such as plasticizers for polymers.