Study of Primary Graphite Separation Products for the Creation of Petroleum Product Sorbents on Their Basis

Today Russia is experiencing a serious Shortage of natural Graphite. At the same time, little attention is paid to the waste product of iron and steel production—kish graphite. This waste contains a significant amount of harmful impurities and cannot be returned to the metallurgical cycle. Its either incinerated or buried and harmful to the environment. With the support of a grant from the Russian Science Foundation, research is being conducted to develop technologies for recycling graphitized dust from various sections of metallurgical processing to produce marketable products. One type of commercial products can become Sorbents of oil products. The sorption capacity of technogenic graphitized dusts and products of their enrichment has been studied. The intercalation Method for preparing graphite for bloating was selected. The possibility of obtaining thermally expanded graphite with magnetic properties has been studied. The need to preserve magnetic properties imposes restrictions on the method of intercalation and heat treatment. At the presented stage of works it was theoretically substantiated and experimentally proved the principle possibility of obtaining a Sorbent with magnetic properties from the iron–graphite concentrate from metallurgical Waste with a bulk weight less than  70 mg/cm3 capable of retaining more than 15 g of common oil products per gram sorbent. The expansion coefficient at a thermal shock temperature of 450 °C was 32.