Method of producing Indium Tin Oxide powder
AssigneeSumitomo Chemical Company, Limited
InventorsTakeshi Hattori, Shinji Fujiwara, Kunio Saegusa
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Abstract
A method of producing an Indium Tin Oxide powder is described. A method of producing an Indium Tin Oxide powder comprising the steps of: (1) mixing a raw aqueous solution containing indium ions and tin ions and having a proportion of divalent tin ions in the tin ions of 50 wt % or more with an alkali aqueous solution, (2) separating the product into solid and liquid, and (3) calcinating the resulted solid.
Claims14
A method of producing an Indium Tin Oxide powder comprising the steps of:
- (1) preparing a raw aqueous solution by reduction-treating an aqueous solution containing indium ions and tetravalent tin ions
- (2) mixing a raw aqueous solution containing indium ions and tin ions and having a proportion of divalent tin ions in the tin ions of 50 wt % or more with an alkali aqueous solution,
- (3) separating the product into solid and liquid, and
- (4) calcinating the resulted solid.
A method of producing an Indium Tin Oxide powder comprising the steps of:
- (1) mixing a raw aqueous solution containing indium ions and tin ions and having a proportion of divalent tin ions in the tin ions of 50 wt % or more with an alkali aqueous solution,
- (2) separating the product into solid and liquid, and
- (3) calcinating the resulted solid,
- wherein the content of tin oxide in the raw aqueous solution in the step (1) is 2 wt % or more and 20 wt % or less based on the total amount of indium oxide and tin oxide.
A method of producing an Indium Tin Oxide powder comprising the steps of:
- (1) mixing a raw aqueous solution containing indium ions and tin ions and having a proportion of divalent tin ions in the tin ions of 50 wt % or more with an alkali aqueous solution,
- (2) separating the product into solid and liquid, and
- (3) calcinating the resulted solid,
- wherein the raw aqueous solution is allowed to contact with an ion exchange resin.
Dependencies are inferred from the claim text.