Claims
- 1. An apparatus for producing polycarbonate, comprising:a uniaxial horizontal agitation reactor without any agitator center shaft, having a horizontal cylindrical vessel and agitation blades annularly distributed and successively arranged through the vessel and secured at positions deviated from a rotating axis toward the inner wall of the vessel, and adapted to be supplied with diphenyl carbonate and an alcohol as raw materials, for agitating and mixing said raw materials, so as to form a mixed liquid; and a horizontal biaxial agitation reactor with lattice blades, adapted to be supplied with the mixed liquid from said uniaxial horizontal agitation reactor, for agitating and mixing the supplied, mixed liquid to conduct polycondensation reaction of the supplied, mixed liquid and continuously produce polycarbonate.
- 2. Apparatus according to claim 1, wherein said alcohol is bisphenol A.
- 3. A method of producing polycarbonate, comprising:supplying diphenyl carbonate and an alcohol, as raw materials, to a uniaxial horizontal agitation reactor without any agitator center shaft, having a horizontal cylindrical vessel and agitation blades annularly distributed and successively arranged through the vessel and secured at positions deviated from a rotating axis toward the inner wall of the vessel; agitating and mixing the supplied raw materials in said uniaxial horizontal agitation reactor, so as to form a mixed liquid; and agitating and mixing the mixed liquid from said uniaxial horizontal agitation reactor in a horizontal biaxial agitation reactor with lattice blades, thereby conducting polycondensation reaction of the mixed liquid and continuously producing polycarbonate.
- 4. The method according to claim 3, wherein the alcohol is bisphenol A.
Priority Claims (1)
Number |
Date |
Country |
Kind |
9-327582 |
Nov 1997 |
JP |
|
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a Divisional application of U.S. application Ser. No. 09/790,514, filed Feb. 23, 2001, which is a divisional application of U.S. application Ser. No. 09/486,913, filed Oct. 12, 2000, which is an application filed under 35 U.S.C. §371 of International application No. PCT/JP98/05245, filed Nov. 20, 1998.
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