Method for manufacturing scorodite

Details Method for manufacturing scorodite Method for manufacturing scorodite

2011-05-03

2011-05-03

Silverman, Stanley (Department: 1736)

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C423S601000

Reexamination Certificate

active

07935328

ABSTRACT:
The present invention provides a method for manufacturing scorodite in which scorodite may be obtained at high production efficiency and a high As concentration ratio. The present invention provides a method for manufacturing crystalline scorodite from acidic aqueous solution containing pentavalent As and trivalent Fe, the method comprising a step for adding a basic sodium compound to the acidic aqueous solution such that the sodium concentration in the acidic aqueous solution becomes larger than 0 g/L and equal to or less than 4 g/L.

REFERENCES:
patent: 4357261 (1982-11-01), Takahashi et al.
patent: 2007/0014709 (2007-01-01), Moyes et al.
patent: 2 377 599 (2000-12-01), None
patent: 2 605 005 (2006-11-01), None
patent: 6-279879 (1994-10-01), None
patent: 2005-161123 (2005-06-01), None
patent: 3756687 (2006-01-01), None
Canadian Intellectual Property Office, Office Action dated Nov. 12, 2009.

Affiliated with

Also associated with

Rating

Method for manufacturing scorodite does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for manufacturing scorodite, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for manufacturing scorodite will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2642082