公开(公告)号：EP2907794B1

公开(公告)日：2017-12-06

申请号：EP15157868.9

申请日：2011-05-13

申请人： Cerion, LLC

发明人： Reed, Kenneth J. ,  Difrancisco, Albert Gary ,  Prok, Gary R. ,  Hailstone, Richard K.

IPC分类号： C01F17/00 ,  C10L1/12 ,  C10L10/00 ,  C01G25/00 ,  C01G49/00

CPC分类号： C10L1/1233 ,  B01J13/0034 ,  B01J13/0047 ,  B82Y30/00 ,  C01F17/00 ,  C01F17/0043 ,  C01G25/00 ,  C01G25/02 ,  C01G49/0054 ,  C01G49/009 ,  C01G49/02 ,  C01G55/00 ,  C01P2002/30 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/51 ,  C01P2004/52 ,  C01P2004/64 ,  C01P2006/90 ,  C10G25/02 ,  C10L1/10 ,  C10L1/1881 ,  C10L10/02 ,  C10L10/06 ,  C10L2200/0222 ,  C10L2200/024 ,  C10L2200/0245 ,  C10L2200/0254 ,  C10L2230/22 ,  C10L2250/06 ,  C10L2270/026 ,  Y10T428/2982

摘要： A process for making cerium-containing oxide nanoparticles includes providing an aqueous reaction mixture containing a source of cerous ion, optionally a source of one or more metal ions (M) other than cerium, a source of hydroxide ion, at least one monoether carboxylic acid nanoparticle stabilizer wherein the molar ratio of said monoether carboxylic acid nanoparticle stabilizers to total metal ions is greater than 0.2, and an oxidant at an initial temperature in the range of about 20°C to about 95°C. Temperature conditions are provided effective to enable oxidation of cerous ion to ceric ion, thereby forming a product dispersion of cerium-containing oxide nanoparticles, optionally containing one or more metal ions (M), Ce 1-x M x O 2-´ , wherein "x" has a value from about 0.0 to about 0.95. The nanoparticles may have a mean hydrodynamic diameter from about 1 nm to about 50 nm, and a geometric diameter of less than about 45 nm.

公开(公告)号：EP2907794A1

公开(公告)日：2015-08-19

申请号：EP15157868.9

申请日：2011-05-13

申请人： Cerion, LLC

发明人： Reed, Kenneth J. ,  Difrancisco, Albert Gary ,  Prok, Gary R. ,  Hailstone, Richard K.

IPC分类号： C01F17/00 ,  C10L1/12 ,  C10L10/00 ,  C01G25/00 ,  C01G49/00

CPC分类号： C10L1/1233 ,  B01J13/0034 ,  B01J13/0047 ,  B82Y30/00 ,  C01F17/00 ,  C01F17/0043 ,  C01G25/00 ,  C01G25/02 ,  C01G49/0054 ,  C01G49/009 ,  C01G49/02 ,  C01G55/00 ,  C01P2002/30 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/51 ,  C01P2004/52 ,  C01P2004/64 ,  C01P2006/90 ,  C10G25/02 ,  C10L1/10 ,  C10L1/1881 ,  C10L10/02 ,  C10L10/06 ,  C10L2200/0222 ,  C10L2200/024 ,  C10L2200/0245 ,  C10L2200/0254 ,  C10L2230/22 ,  C10L2250/06 ,  C10L2270/026 ,  Y10T428/2982

摘要： A process for making cerium-containing oxide nanoparticles includes providing an aqueous reaction mixture containing a source of cerous ion, optionally a source of one or more metal ions (M) other than cerium, a source of hydroxide ion, at least one monoether carboxylic acid nanoparticle stabilizer wherein the molar ratio of said monoether carboxylic acid nanoparticle stabilizers to total metal ions is greater than 0.2, and an oxidant at an initial temperature in the range of about 20°C to about 95°C. Temperature conditions are provided effective to enable oxidation of cerous ion to ceric ion, thereby forming a product dispersion of cerium-containing oxide nanoparticles, optionally containing one or more metal ions (M), Ce 1-x M x O 2-δ , wherein "x" has a value from about 0.0 to about 0.95. The nanoparticles may have a mean hydrodynamic diameter from about 1 nm to about 50 nm, and a geometric diameter of less than about 45 nm.

摘要翻译： 制备含铈氧化物纳米颗粒的方法包括提供含有铈离子源的任选含水反应混合物，任选地是除了铈以外的一种或多种金属离子（M）的源，氢氧根离子源，至少一种单醚羧酸 纳米粒子稳定剂，其中所述单醚羧酸纳米颗粒稳定剂与总金属离子的摩尔比大于0.2，氧化剂的初始温度在约20℃至约95℃的范围内。 提供温度条件有效地使铈离子氧化成铈离子，从而形成任选含有一种或多种金属离子（M），Ce 1-x M x O 2-'的含铈氧化物纳米颗粒的产物分散体，其中 “x”具有约0.0至约0.95的值。 纳米颗粒可具有约1nm至约50nm的平均流体动力学直径和小于约45nm的几何直径。