Method for recycling waste sulfuric acid
AssigneeSony Corporation
InventorYasuhito Inagaki
Life of this patent
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Abstract
The recycling apparatus of waste sulfuric acid for collecting waste sulfuric acid generated at a source site A, transporting it by a carrier B, and recycling it for reuse at a user site C, the recycling apparatus of waste sulfuric acid including a receiving tank for receiving virgin sulfuric acid (a) and waste sulfuric acid (b) having a concentration different from that of the virgin sulfuric acid, and including (1) a mixer alone, (2) a mixer and a concentration monitor, or a mixer and a cooler in combination, or (3) a mixer, a concentration monitor, and a cooler in combination.
Claims9
A method for recycling waste sulfuric acid by collecting waste collecting waste sulfuric acid generated at a source site, transporting it by a carrier, and recycling it for reuse at a user site, comprising:
- receiving virgin sulfuric acid and waste sulfuric acid having a concentration different from that of the virgin sulfuric acid through a set of inlets;
- mixing the waste sulfuric acid and the virgin sulfuric acid to produce a mixture of the waste sulfuric acid and the virgin sulfuric acid;
- monitoring an acid concentration of the mixture of the waste sulfuric acid and the virgin sulfuric acid to determine when the acid concentration of the mixture reaches a predetermined acid concentration;
- adjusting the acid concentration of the mixture to reach the predetermined acid concentration.
Dependencies are inferred from the claim text.