公开(公告)号：EP1716076A4

公开(公告)日：2009-07-29

申请号：EP05700113

申请日：2005-01-24

申请人： VERY SMALL PARTICLE COMPANY PT

发明人： EDWARDS GEOFFREY ALAN ,  TALBOT PETER CADE ,  ALARCO JOSE ANTONIO

IPC分类号： C01B13/14 ,  C01B13/18 ,  C01G1/02 ,  C01G3/02 ,  C01G15/00 ,  C01G23/00 ,  C01G25/00 ,  C01G45/00 ,  C01G49/00 ,  C01G55/00 ,  C04B38/06

CPC分类号： C01F17/0043 ,  B82Y30/00 ,  C01B13/185 ,  C01G1/02 ,  C01G3/02 ,  C01G15/00 ,  C01G23/006 ,  C01G25/006 ,  C01G45/1264 ,  C01G49/0054 ,  C01G53/56 ,  C01G55/002 ,  C01P2002/34 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2004/64 ,  C01P2004/82 ,  C01P2006/12 ,  C01P2006/13 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/17 ,  C01P2006/19 ,  C01P2006/62 ,  C01P2006/64 ,  C04B35/016 ,  C04B35/486 ,  C04B35/62675 ,  C04B35/632 ,  C04B35/63488 ,  C04B38/068 ,  C04B2111/0081 ,  C04B2235/3213 ,  C04B2235/3224 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3279 ,  C04B2235/3289 ,  C04B2235/443 ,  C04B2235/5409 ,  C04B2235/5454 ,  C04B2235/768 ,  C04B2235/80 ,  C04B2235/81 ,  C04B35/01 ,  C04B38/0054

摘要： A method of producing porous complex oxides includes the steps of providing a mixture of a) precursor elements suitable to produce the complex oxide; or b) one or more precursor elements suitable to produce particles of the complex oxide and one or more metal oxide particles; and c) a particulate carbon-containing pore-forming material selected to provide pore sizes in the range of approximately 7 nm to 250 nm, and treating the mixture to (i) form the porous complex oxide in which two or more of the precursor elements from (a) above or one or more of the precursor elements and one or more of the metals in the metal oxide particles from (b) above are incorporated into a phase of the complex metal oxide and the complex metal oxide has grain sizes in the range of about 1 nm to 150 nm; and (ii) remove the pore-forming material under conditions such that the porous structure and composition of the complex oxide is substantially preserved. The method may be used to produce non-refractory metal oxides as well.

公开(公告)号：EP1355853A4

公开(公告)日：2005-06-08

申请号：EP01983334

申请日：2001-11-21

申请人： VERY SMALL PARTICLE COMPANY PT

发明人： TALBOT PETER CADE ,  ALARCO JOSE ANTONIO ,  EDWARDS GEOFFREY ALAN

IPC分类号： B82B3/00 ,  B01J19/00 ,  C01B13/14 ,  C01B13/18 ,  C01B13/32 ,  C01F1/00 ,  C01F17/00 ,  C01G1/02 ,  C01G3/00 ,  C01G25/00 ,  C01G45/00 ,  C01G45/02 ,  C01G51/00 ,  C01G53/00 ,  C01G53/02 ,  C01B13/36 ,  C01G3/02 ,  C01G25/02 ,  C01G51/04 ,  C01G53/04

CPC分类号： C01G3/006 ,  B82Y30/00 ,  C01B13/18 ,  C01B13/185 ,  C01F17/0043 ,  C01G1/02 ,  C01G25/006 ,  C01G25/02 ,  C01G45/02 ,  C01G45/1242 ,  C01G45/1264 ,  C01G51/02 ,  C01G51/42 ,  C01G53/02 ,  C01G53/56 ,  C01G53/68 ,  C01P2002/01 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/50 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/17

摘要： A method of producing particles having nano-sized grains, the method comprising the steps of: (a) preparing a solution containing one or more metal cations; (b) mixing the solution from step (a) with one or more surfactants to form a surfactant/liquid mixture and (c) heating the mixture from step (b) above to form the particles.