| 摘要 |
PURPOSE:To obtain the titled spinning solution having viscosity in an industrially applicable range, and high solid content, by drying an aqueous solution containing at least basic aluminum chloride as a main component, and redissolving the dried material in an aqueous solution containing at least the main component. CONSTITUTION:Firstly, (A) an aqueous solution containing basic aluminum chloride as a main component, or an aqueous solution containing the component A, (B) colloidal silica and/or (C) a fiber-forming binder (preferably PVA, etc.), is dried at a drying atmosphere temperature <=60 deg.C. Then, the dried material is dissolved in an aqueous solution of the component A, or optionally in an aqueous solution of the component A, the component B and/or C, to give the aimed spinning solution containing the components A, B, and C. Preferably the spinning solution is preferably spun, and calcined, to give alumina fiber.
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