Expired edible oil is basically not recycled, and there is no expired edible oil recycling in Luoning County. Luoning County, formerly known as Yongning County, belongs to Luoyang City, Henan Province. It is located in the western mountainous area of Henan Province, in the middle and upper reaches of Luohe River, with a total area of 2,306 square kilometers. As a whole, the landform is "seven mountains, two tablelands and one river", which is a typical agricultural county and forestry county in mountainous areas.

Hebi New District is located in Hebi Tian Tian Pioneer Park, He Qi Avenue, Qixian County, Hebi City. It is a compound functional area that embodies the overall planning of urban and rural areas, industrial coordination and the integration of production and city development. Shuoda Recycling in Hebi New District will recycle expired edible oil to ensure that waste is turned into treasure and used rationally. With long operation time and rich management, it aims to meet the different needs of the masses.

Preparation of mineral processing reagents from waste oil;

Professor Wang Huajun from the Department of Environmental Engineering, University of Science and Technology Beijing, and others have successfully developed a technology to comprehensively utilize "waste oil" to prepare mineral processing reagents. This technology can be used to produce fatty acids and sodium fatty acids from "waste oil" for mineral processing, with little secondary pollution.

In 2009, University of Science and Technology Beijing carried out the research on using fatty acids decomposed from "gutter oil" as mineral collectors, and achieved satisfactory experimental results.

This technology has been applied in some iron and steel enterprises and is applying for national patents. Experts believe that the further research and application of this technology will be of great significance to avoid environmental pollution, reduce the cost of mineral processing and reduce the threat to food safety.