Continuous process for industrially producing mesocarbon...

Details Continuous process for industrially producing mesocarbon... Continuous process for industrially producing mesocarbon...

C - Chemistry, Metallurgy

01

B

23/313

C01B 31/02 (2006.01)

Patent

CA 1147533

ABSTRACT OF THE DISCLOSURE Mesocarbon microbeads are continuously produced by the steps of: 1) mixing a matrix pitch, mesophase micro- spheres, and a solvent in which the pitch will dissolve but the microspheres will not, thereby to prepare a liquid mixture of a solution and dispersion; 2) process- ing the mixture in at least two stages of liquid cyclones, thereby to separate it into light and medium-weight liquids and a heavy liquid containing most of the micro- spheres; and 3) evaporating off the solvent from the heavy liquid thus obtained, thereby to obtain the microspheres as mesocarbon microbeads. The solvent is evaporated off from the light liquid to recover the pitch, and the medium-weight liquid is recycled to step 1) or 2).

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