Method for preparing aluminum sulfate, aluminum sulfate, method for improving yield of aluminum sulfate, and use of nitric acid
AssigneeSony Corporation
InventorYasuhito Inagaki
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Abstract
A method for preparing aluminum sulfate which comprises subjecting sulfuric acid and aluminum hydroxide to reaction, wherein the reaction is advanced in the presence of at least one member selected from the group consisting of nitric acid and a peroxide. An industrial composition comprising aluminum sulfate. By the method of the present invention, aluminum sulfate can be efficiently and commercially advantageously prepared. Further, the industrial composition of the present invention can be advantageously used in various industrial fields as, for example, a waste water treatment agent, a paper sizing agent, a tanning agent for hides, a clarifying agent for fats and oils, or a catalyst for industrial use.
Claims14
A method for preparing aluminum sulfate comprising:
- subjecting sulfuric acid and aluminum hydroxide to reaction, and
- advancing said reaction in the presence of nitric acid and a peroxide.
A method for improving a yield of aluminum sulfate in preparation of aluminum sulfate from sulfuric acid and aluminum hydroxide, wherein said method comprises:
- adding nitric acid and hydrogen peroxide solution to a reaction system comprising said sulfuric acid and said aluminum hydroxide.
A method for for improving an efficiency of preparation of aluminum sulfate, the method comprising:
- subjecting sulfuric acid and aluminum hydroxide to reaction, and
- advancing said reaction in the presence of nitric acid and a peroxide.
Dependencies are inferred from the claim text.