Method of removing hydrogen peroxide from sulfuric acid
OwnerCheng Ming Huanginventor
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Abstract
A method of removing hydrogen peroxide from sulfuric acid includes pouring sulfuric acid (H2SO4) having 0.1% to 10% of hydrogen peroxide (H2O2) into a vessel; adding a catalyst containing metal or metal compound to the vessel to undergo a reaction with the sulfuric acid (H2SO4) to remove hydrogen peroxide (H2O2) from the sulfuric acid (H2SO4), to generate heat, and to generate metal ions in the sulfuric acid (H2SO4); activating a cooling device to cool the vessel to a predetermined temperature range; adding sulfur (S2−) to the vessel to undergo a reaction with the metal ions to generate metallic sulfide; and purifying the metal free sulfuric acid (H2SO4) to obtain the metallic sulfide and highly purified, diluted sulfuric acid (H2SO4) as products.
Claims9
A method of removing hydrogen peroxide from sulfuric acid, comprising the steps of:
- (i) pouring sulfuric acid (H2SO4) having 0.1% to 10% of hydrogen peroxide (H2O2) into a vessel;
- (ii) adding a catalyst containing metal or metal compound to the vessel to undergo a reaction with the sulfuric acid (H2SO4) to remove hydrogen peroxide (H2O2) from the sulfuric acid (H2SO4), to generate heat, and to generate metal ions in the sulfuric acid (H2SO4);
- (iii) activating a cooling device to cool the vessel to a predetermined temperature range;
- (iv) adding sulfur (S2−) to the vessel to undergo a reaction with the metal ions to generate metallic sulfide;
- and
- (v) purifying the metal free sulfuric acid (H2SO4) to obtain the metallic sulfide and highly purified, diluted sulfuric acid (H2SO4) as products.
Dependencies are inferred from the claim text.