Carbon black is one of the oldest industrial products. As early as BC, China used incomplete combustion of vegetable oil to prepare pigment carbon black. 1872, the United States first produced carbon black from natural gas by tank method. At that time, carbon black was still mainly used as a colorant. 19 12 After S.C. Mott discovered the reinforcing effect of carbon black on rubber, the carbon black industry developed rapidly. In the 1920s, gas furnace black and pyrolysis black with natural gas as raw materials reappeared, and Si Nuo began to study the efficient production method of carbon black at 1937. Later, J.C. Kreiger devoted himself to producing carbon black from liquid hydrocarbons and developed an oil furnace process. 194 1 year trial-produced the first batch of oil furnace black. 1943, the world's first industrialized oil stove black factory was put into production in the United States. At present, the oil furnace method is the most effective and economical method to produce carbon black. The output of oil furnace black accounts for 70% ~ 90% of the total carbon black.
Activated carbon is a traditional and modern man-made material, also known as carbon molecular sieve. As an artificial material, activated carbon was invented in 1900 and 190 1 year. The inventor Rafael von Ostrico obtained the British patent B.P. 14224( 1900). British patent B.P. 18040( 1900) German patent G.P.136792 (1901). He invented the method of carbonizing raw materials from plants with metal chloride or making carbon dioxide or water vapor react with carbonized materials to make activated carbon. 19 1 1 was first used in industrial production in a factory near Vienna. At that time, the product was powdered activated carbon with the trade name Epomit. In the same year, Norite was listed in the Netherlands; Carboraffin is sold in Czechoslovakia as 19 12. (yurts. U.S. Patent No.290656.
They are not the same substance, and their application fields are very different.