A method for purifying heavy metal impurities (such as antimony, arsenic, iron, cadmium, and lead) from 28 to 38 weight percent aqueous crude sodium sulfate solution is achieved by adding ferric sulfate to the aqueous crude sodium sulfate solution to form a suspension, progressively neutralizing the suspension from a pH of less than 3.5 up to at least 6, and separating the ferric-sulfate-nucleated precipitate from the suspension. An oxidizing agent such as peroxide is optionally added to the suspension to augment adsorption of the heavy metals.
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Matthew Pratt
Work:
City WInd Theatrics - Artistic Director (4) Fox Valley Repertory - Actor (7) Coriolis Theater - Actor (8-9) Spartan Theater - Actor (5-9)
Education:
Columbia College Chicago - Acting, Jackson Community College - Acting, Owens Community College - Architectural Engineering, ABLE - General Education Diploma, Addison High School - General
About:
Hello, I'm a Chicago actor and recent founder of City Wind Theatrics.
Tagline:
I act, produce, direct, write, and live!
Bragging Rights:
I have a beautiful daughter Kallie and beautiful girlfriend Kayla, and my cat Chow Yun Fat is amazing
Matthew Pratt
Work:
Mencap - Support Worker (10-2)
Education:
University Campus Suffolk - Adult Nursing
About:
Hello my names Matthew James Pratt, I attended Methwold High School in Norfolk and I am currently studying my Adult Nursing at University Campus Suffolk in Ipswich