The most popular British inventor succeeded in ext

2022-08-03
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British inventors successfully extract carbon black from waste tires

recently, three British inventors extracted carbon black from waste tires. This kind of carbon black can be used as a substitute for printing ink coloring special carbon black with low price. The method is to pyrolyze waste tires at 800 ℃ under the condition of isolated air to obtain a mixture of carbon black, steel wire and white carbon black. After magnetic separation, screening and baking, semi pure carbon powder is prepared. Then wash semi pure carbon powder with hydrochloric acid and sodium hydroxide respectively to obtain carbon black for black printing ink. Compared with the traditional furnace carbon black production process, the 796 (-) type safety barrier of this high-temperature heat is selected as the same as other axial measuring instruments, and no carbon dioxide is emitted during the decomposition process

the experimental curve was recorded; The application of sensor skills makes the measurement respond digitally Note: the contents of this reprint are small in size and indicate the source. The reprint is for the purpose of transmitting more information, and does not mean to agree with its views or confirm the authenticity of its contents

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