Method for producing b-eucryptite fine particles
AssigneeNissan Chemical Industries, Ltd.
InventorsHirokazu KATO, Tadayuki ISAJI, Yoshiyuki KASHIMA, Jun-ichi NAKAJIMA
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Abstract
The β-eucryptite fine particle production method of the invention includes spraying, into an atmosphere at 50° C. to a temperature lower than 300° C., a solution containing a water-soluble lithium salt, a water-soluble aluminum salt, and colloidal silica, in such amounts that the mole proportions among lithium atoms, aluminum atoms, and silicon atoms (Li:Al:Si) are adjusted to 1:1:1, to thereby dry the solution, and, subsequently, firing the dried product in air at 600 to 1,300° C.
Claims11
1-5. (canceled)
A method for producing β-eucryptite fine particles, the method comprising:
- spraying, into an atmosphere at 50° C. to a temperature lower than 300° C., a solution containing a water-soluble lithium salt, a water-soluble aluminum salt, and colloidal silica having a primary particle size, as determined through observation under a transmission electron microscope, of 2 to 50 nm, in such amounts that the mole proportions among lithium atoms, aluminum atoms, and silicon atoms (Li:Al:Si) are adjusted to 1:1:1, to thereby dry the solution, and,
- subsequently, firing the dried product in air or an oxidizing atmosphere at 600 to 1,300° C.
Dependencies are inferred from the claim text.