Abstract: A solid state reaction method for the production of tetrabasic lead sulfate includes the steps of mixing a stoichiometric mixture of 5PbO and (NH4)2SO4 and heating the stoichiometric mixture of 5PbO and (NH4)2SO4 at a temperature between 500 and 700° C. for 3 to 8 hours. The method also includes the steps of deagglomerating and sieving resulting tetrabasic lead sulfate.
Type:
Grant
Filed:
November 9, 2007
Date of Patent:
September 1, 2009
Assignee:
GES Technologies IP GmbH
Inventors:
Ricardo Flores-Lira, Sanjuana Garza-de La Garza
Abstract: A solid state reaction method for the production of tetrabasic lead sulfate includes the steps of mixing a stoichiometric mixture of 5PbO and H2SO4 and heating the stoichiometric mixture of 5PbO and H2SO4 at a temperature between 500 and 700° C. for 3 to 8 hours. The method also includes the steps of deagglomerating and sieving resulting tetrabasic lead sulfate.
Type:
Grant
Filed:
November 9, 2007
Date of Patent:
June 23, 2009
Assignee:
GES Technologies IP GmbH
Inventors:
Ricardo Flores-Lira, Sanjuana Garza-de La Garza
Abstract: A solid state reaction method for the production of tetrabasic lead sulfate includes the steps of mixing a stoichiometric mixture of 4PbO and PbCO3 and H2SO4 and heating the stoichiometric mixture of 4PbO and PbCO3 and H2SO4 at a temperature between 500 and 700° C. for 3 to 8 hours. The method also includes the steps of deagglomerating and sieving resulting tetrabasic lead sulfate.
Type:
Grant
Filed:
November 9, 2007
Date of Patent:
December 2, 2008
Assignee:
GES Technologies IP GmbH
Inventors:
Ricardo Flores-Lira, Sanjuana Garza-de La Garza
Abstract: A solid state reaction method for the production of tetrabasic lead sulfate includes the steps of mixing a stoichiometric mixture of 3PbO.PbSO4.H2O and PbO and heating the stoichiometric mixture of 3PbO.PbSO4.H2O and PbO at a temperature between 500 and 700° C. for 3 to 8 hours. The method also includes the steps of deagglomerating and sieving resulting tetrabasic lead sulfate.
Type:
Grant
Filed:
December 7, 2005
Date of Patent:
December 18, 2007
Assignee:
GES Technologies IP GmbH
Inventors:
Ricardo Flores-Lira, Sanjuana Garza-de La Garza
Abstract: The production of tetrabasic lead sulfate by means of solid state reactions at high temperatures allow the formation of powders having a particle size of less than 10 ?m. In the methods the chemical reaction that takes place between lead oxide and different sulfated compounds occurs in a single high temperature treatment. The sulfated compounds used in the present invention to produce the tetrabasic lead sulfate are: PbSO4, 3PbO.PbSO4.H2O, H2SO4 and (NH4)2SO4. There are lead-acid battery pastes produced using the tetrabasic lead sulfate made, the lead-acid battery plates made with the pastes, and the lead-acid batteries subsequently made with the plates.
Type:
Grant
Filed:
March 19, 2004
Date of Patent:
March 14, 2006
Assignee:
GES Technologies IP GmbH
Inventors:
Ricardo Flores-Lira, Sanjuana Garza-De La Garza