Industrial waste oil proppant material preparation program about

With increasing levels of technology, human-generated solid waste is also growing, a lot of solid waste piling up posing a great threat to the survival of the environment. After solid waste generally refers to human access to the target component in the process of production, processing, distribution, consumption and life in discarding the solids and mud-like substance. According to management needs can be divided into three categories: industrial solid waste, toxic and hazardous waste and municipal solid waste. These wastes are stored not only take up a lot of land, and the resulting solid dust piled on the environment caused great harm. SOLID WASTE, has important implications for the current development of China's circular economy. For the preparation of industrial waste oil fracturing proppant means of industrial solid waste has a high content of alumina, silica and other useful components, such as red mud, fly ash, ceramic roller production wastes. With these solid waste oil fracturing oil fracturing proppant preparation that can be salvaged, but also protect the environment, is a direction of development of petroleum proppant.
Red mud is bauxite alumina production of solid waste generated in the process, it is estimated that the world produces about 60 million T red mud annually. Our red mud annually in more than 4 million t, stacked two billion cumulative nationwide yellow t, but the comprehensive utilization rate is only about 15%. Red mud piled up a lot of land and farmland, consuming more stacked construction and maintenance costs, and red mud fluoride, alkali and other contaminants in the immersion will be a substantial dissolution and leaching, contaminated groundwater sources; solid powder will cause dust pollution affecting the ecological environment and human health. The use of red mud have been related to the preparation of ceramic isp proppant reported 尹国勋 other major raw materials used for the red mud, supplemented by fly ash, coal gangue and other materials, add a small amount of additives, prepare a new type of ceramic. The preparation of ceramic density rating of 600, the anti-particle pressure 410N, cylinder compressive strength equivalent to 5.5MPa. Chinese patent application discloses a "red mud acid fracturing proppant preparation methods," the percentage of raw material quality is: red mud 20% to 60%, aluminum-containing material 20% to 60%, 5% barium-containing substance to 5% plasticizer 5% to 15%. Preparation process of acid fracturing proppant is red mud and aluminum-containing material into a ball milling, get some strength powder, followed by the addition of barium-containing substances, plasticizers milling mixing, particles made of semi-finished products, in 1200 ~ 1400 degrees from sintering 1 ~ 3h. Tian et al conducted a study, prepared by acid pressure bright red mud proppant, the main raw material used in the red mud, refractory waste, barium carbonate, plasticizers. Studies suggest that: proppant acid resistance due to the formation of the improvement in the sintering process monoclinic barium feldspar BaAl2Si2O8.
Fly ash is pulverized coal in the boiler fuel power plants and other industrial waste discharge, the chemical composition of the most SIO2 content (45% to 60%), followed by AL2O3 (18% ~ 40%), the rest is for a small amount The Fe2O3], CaO, MgO, K2O, loss on ignition and so on. INNER fly ash as the main raw material, doped with a certain amount of clay and a small amount of pore-forming agent and water points by allowing mixed to prepare microspheres made of high-temperature roasting two Lytag for analog fluoridated water fluoride treatment. Guanjie trial stamp and other high-volume fly ash sintered ceramic, the ceramic has a light weight, high strength, low thermal conductivity, good fire resistance, impermeability, acoustic, chemical stability. However, due to the low intensity reasons, this ceramic proppant fracturing of oil can not be used.
Ceramic Roller Waste is ceramic roller production process waste, the current domestic production of ceramic rods scrap, production and use of fracture roller annually 8000 ~ 10000t. Chemical composition of ceramic roller scrap aluminum oxide content greater than 60%, an alternative high quality bauxite or industrial alumina powder preparation of ceramic hsp proppant of oil sticks scrap either reduce production costs, but also can guarantee the quality.