Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Alkaline earth metal
Reexamination Certificate
2006-12-18
2010-06-08
Langel, Wayne (Department: 1793)
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Alkaline earth metal
C423S165000, C423S430000, C423S432000, C423S640000
Reexamination Certificate
active
07731921
ABSTRACT:
A process for sequestration of carbon dioxide comprising the following steps: (a) dispersing solid waste material comprising calcium oxide and a calcium-comprising mixed oxide in water to dissolve at least part of the calcium oxide and to form calcium oxide-depleted solid waste material in a calcium hydroxide solution; (b) separating the calcium hydroxide solution from the calcium oxide-depleted solid waste material; (c) converting the calcium hydroxide in the separated calcium hydroxide solution in precipitated calcium carbonate; and (d) contacting an aqueous slurry of the calcium oxide-depleted solid waste material with carbon dioxide for mineral carbonation of the carbon dioxide to form carbonated solid waste material.
REFERENCES:
patent: 5792440 (1998-08-01), Huege
patent: 6843843 (2005-01-01), Takahashi et al.
patent: 7060127 (2006-06-01), Tanabe et al.
patent: 7550127 (2009-06-01), Takahashi et al.
patent: 2001/0054253 (2001-12-01), Takahashi et al.
patent: 2003/0029590 (2003-02-01), Tanabe et al.
patent: 2004/0228788 (2004-11-01), Nagai et al.
patent: 2005/0036932 (2005-02-01), Takahashi et al.
patent: 2005/0235872 (2005-10-01), Tanabe et al.
patent: 2007/0154380 (2007-07-01), Takahashi et al.
patent: 19622292 (1996-12-01), None
patent: WO9711030 (1997-03-01), None
patent: WO0025899 (2000-05-01), None
patent: WO0164585 (2001-09-01), None
patent: WO02085788 (2002-10-01), None
“Carbon dioxide sequestration by mineral carbonation”. ECN Literature Review, Feb. 2003, pp. 1-52, XP002263407.3, Alkaline solid wastes. 5.2 Aqueous scheme. 8.4 Alkaline solid wastes Annex A.
International Search Report dated Mar. 7, 2007, (PCT/EP2006/069796).
Richard P. Walters et al., “Mineral Carbonation: A Viable Method for CO2 Sequestration”, 1999, Internet site: http://web.archive.org/web/20010224101527/http://www.netl.doe.gov/products/gcc/indepth/mineral/mincarb.html.
Geerlings Jacobus Johannes Cornelis
In' T Veen Bernardus Cornelis Maria
Van Mossel Gerardus Antonius Franciscus
Iqbal Syed
Langel Wayne
Shell Oil Company
Stewart Charles W.
LandOfFree
Process for sequestration of carbon dioxide does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for sequestration of carbon dioxide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for sequestration of carbon dioxide will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4191683