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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Kinoshita; Hisahiro
Address:
Tokyo, JA
No. of patents:
2
Patents:












Patent Number Title Of Patent Date Issued
4057423 Method for the manufacture of mercury free sulfuric acid November 8, 1977
A method of manufacturing sulfuric acid free of impurities such as mercury by the contact process, which comprises the steps: scrubbing the roasting gas coming out of a mist Cottrell with sulfuric acid having a concentration of 30 to 99% and a temperature of more than 20.degree. C wi
3954451 Method for the manufacture of mercury free sulfuric acid May 4, 1976
A method of manufacturing sulfuric acid free of impurities such as mercury by the contact process, which comprises the steps: scrubbing the roasting gas coming out of a mist Cottrell with sulfuric acid having a concentration of 30 to 99% and a temperature of more than 20.degree.C wit










 
 
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