The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 19, 2008
Filed:
Sep. 30, 2003
Risto Olavi Harjula, Espoo, FI;
Johanna Teresia Moller, Espoo, FI;
Suheel Amin, Lancashire, GB;
Alan Dyer, Manchester, GB;
Martyn Pillinger, Bristol, GB;
Jonathan Andrew Newton, Cheshire, GB;
Esko Heikki Tusa, Kauiainen, FI;
Maurice Webb, Chester, GB;
Risto Olavi Harjula, Espoo, FI;
Johanna Teresia Moller, Espoo, FI;
Suheel Amin, Lancashire, GB;
Alan Dyer, Manchester, GB;
Martyn Pillinger, Bristol, GB;
Jonathan Andrew Newton, Cheshire, GB;
Esko Heikki Tusa, Kauiainen, FI;
Maurice Webb, Chester, GB;
INEOS Silicas Ltd., Warrington, GB;
Abstract
The invention provides a use of a material comprising antimony silicate as a sorbent in the removal of metal ions, e.g. radioactive metal ions, from an acidic liquid medium. The metal ions may be selectively removed from amongst other ions such as Na, K, Mg, and Ca ions. Strontium is particularly effectively removable in this way. There is also provided a method of preparing an antimony silicate material for use in removing metal ions. The invention further provides a material comprising antimony silicate doped with one or more elements selected from the group consisting of tungsten, niobium and tantalum. The doped material has been found to be particularly effective as a sorbent in the removal of metal ions from a liquid medium.