Yang, Kai-Jin (1926) Recovery of ferrous sulfate crystals from pickling liquor. Bachelor's thesis, California Institute of Technology. http://resolver.caltech.edu/CaltechETD:etd-01032005-112533
Pickling liquor is nothing more than dilute sulfuric acid used in the iron and steel industry for removing scales on the surface of iron work which is to be further treated. The reaction for pickling may be represented by the equation FeO + H2SO4 = FeSO4 + H2O. Thus we see from this equation that H2SO4 is gradually used up and FeSO4 formed during the process. It is evident, then, after a certain length of time, H2SO4 will be too valuable to be cast away. This FeSO4 may be converted into an oxide which is a pigment, or taken out in the form of FeSO4.7H2O crystals. The latter is the purpose of this work. FeSO4 has the following uses: photography; writing ink; Prussian blue; preparation of iron oxide for illuminating gas purification; water purification; medicine; disinfectant; textile and leather industries; analytical reagent; making other iron salts.
|Item Type:||Thesis (Bachelor's thesis)|
|Degree Grantor:||California Institute of Technology|
|Division:||Chemistry and Chemical Engineering|
|Major Option:||Chemical Engineering|
|Thesis Availability:||Public (worldwide access)|
|Defense Date:||1 January 1926|
|Default Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Imported from ETD-db|
|Deposited On:||05 Jan 2005|
|Last Modified:||26 Dec 2012 02:26|
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