公开(公告)号：EP2379221A4

公开(公告)日：2013-05-15

申请号：EP08879024

申请日：2008-12-17

Applicant: CERION TECHNOLOGY INC

Inventor： DIFRANCESCO ALBERT GARY ,  ALLSTON THOMAS D ,  HAILSTONE RICHARD K ,  LANGNER ANDREAS ,  REED KENNETH J

IPC: B01J23/00 ,  B01J23/10 ,  B01J23/22 ,  B01J23/24 ,  B01J23/34 ,  B01J23/72 ,  B01J23/74 ,  B01J23/745 ,  B01J35/00 ,  B82Y30/00 ,  C01F17/00 ,  C01G3/00 ,  C01G25/00 ,  C01G49/00 ,  C10L1/10 ,  C10L1/12 ,  C10L10/00 ,  C10L10/08 ,  C10M125/10

CPC classification number: B01J35/0013 ,  B01J23/002 ,  B01J23/10 ,  B01J23/22 ,  B01J23/24 ,  B01J23/34 ,  B01J23/72 ,  B01J23/74 ,  B01J23/745 ,  B01J37/03 ,  B01J2523/00 ,  B82Y30/00 ,  C01F17/0018 ,  C01F17/0043 ,  C01G3/00 ,  C01G25/00 ,  C01G49/0054 ,  C01G49/009 ,  C01P2002/30 ,  C01P2002/52 ,  C01P2002/70 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/51 ,  C01P2004/64 ,  C10L1/10 ,  C10L1/1233 ,  C10L1/125 ,  C10L1/1608 ,  C10L1/1616 ,  C10L1/1824 ,  C10L1/1852 ,  C10L1/1881 ,  C10L1/1883 ,  C10L1/2222 ,  C10L10/00 ,  C10L10/08 ,  C10M125/10 ,  C10N2210/03 ,  C10N2220/082 ,  C10N2230/06 ,  C10N2240/10 ,  C10N2240/102 ,  B01J2523/3712 ,  B01J2523/48 ,  B01J2523/17 ,  B01J2523/842

公开(公告)号：EP2064153A4

公开(公告)日：2012-02-22

申请号：EP07814663

申请日：2007-09-04

Applicant: CERION TECHNOLOGY INC

Inventor： DIFRANCESCO ALBERT GARY ,  HAILSTONE RICHARD K ,  LANGNER ANDREAS ,  REED KENNETH J

IPC: C01F17/00 ,  B01F3/00 ,  B01F3/08 ,  B01F5/00 ,  B01F7/00 ,  B01F7/16 ,  B01F17/00 ,  B01J13/00 ,  C10L1/10 ,  C10L10/02 ,  C10L10/08 ,  C10L10/12 ,  C10M125/10

CPC classification number: B01J23/10 ,  B01F3/0807 ,  B01F7/164 ,  B01J13/0047 ,  B01J13/0086 ,  B82Y30/00 ,  C10L1/10 ,  C10L1/103 ,  C10L1/1233 ,  C10L1/125 ,  C10L1/1258 ,  C10L1/1608 ,  C10L1/1616 ,  C10L1/1811 ,  C10L1/1824 ,  C10L1/1881 ,  C10L1/1883 ,  C10L1/19 ,  C10L1/1985 ,  C10L1/2222 ,  C10L1/2437 ,  C10L10/02 ,  C10L10/08 ,  C10L10/12 ,  C10M2201/062 ,  C10N2230/06 ,  C10N2240/10 ,  Y02T50/678 ,  C10N2210/03 ,  C10N2220/082

Abstract: A method of making cerium dioxide nanoparticles includes: a) providing an aqueous reaction mixture having a source of cerous ion, a source of hydroxide ion, a nanoparticle stabilizer, and an oxidant at an initial temperature no higher than about 20° C.; b) mechanically shearing the mixture and causing it to pass through a perforated screen, thereby forming a suspension of cerium hydroxide nanoparticles; and c) raising the initial temperature to achieve oxidation of cerous ion to eerie ion and thereby form cerium dioxide nanoparticles having a mean diameter in the range of about 1 nm to about 15 nm. The cerium dioxide nanoparticles may be formed in a continuous process.

公开(公告)号：EP2066767A4

公开(公告)日：2011-12-07

申请号：EP07814656

申请日：2007-09-04

Applicant: CERION TECHNOLOGY INC

Inventor： REED KENNETH J

IPC: C10L1/10 ,  B01F3/00 ,  B01F3/08 ,  B01F5/00 ,  B01F7/00 ,  B01F7/16 ,  B01F17/00 ,  B01J13/00 ,  C01F17/00 ,  C10L10/02 ,  C10L10/08 ,  C10L10/12 ,  C10M125/10

CPC classification number: B01J23/10 ,  B01F3/0807 ,  B01F7/164 ,  B01J13/0047 ,  B01J13/0086 ,  B82Y30/00 ,  C10L1/10 ,  C10L1/103 ,  C10L1/1233 ,  C10L1/125 ,  C10L1/1258 ,  C10L1/1608 ,  C10L1/1616 ,  C10L1/1811 ,  C10L1/1824 ,  C10L1/1881 ,  C10L1/1883 ,  C10L1/19 ,  C10L1/1985 ,  C10L1/2222 ,  C10L1/2437 ,  C10L10/02 ,  C10L10/08 ,  C10L10/12 ,  C10M2201/062 ,  C10N2230/06 ,  C10N2240/10 ,  Y02T50/678 ,  C10N2210/03 ,  C10N2220/082

Abstract: A method of making cerium dioxide nanoparticles includes: a) providing an aqueous reaction mixture having a source of cerous ion, a source of hydroxide ion, a nanoparticle stabilizer, and an oxidant at an initial temperature no higher than about 20° C.; b) mechanically shearing the mixture and causing it to pass through a perforated screen, thereby forming a suspension of cerium hydroxide nanoparticles; and c) raising the initial temperature to achieve oxidation of cerous ion to eerie ion and thereby form cerium dioxide nanoparticles having a mean diameter in the range of about 1 nm to about 15 nm. The cerium dioxide nanoparticles may be formed in a continuous process.

公开(公告)号：EP2379221A1

公开(公告)日：2011-10-26

申请号：EP08879024.1

申请日：2008-12-17

Applicant: Cerion Technology, Inc.

Inventor： DIFRANCESCO, Albert, Gary ,  ALLSTON, Thomas, D. ,  HAILSTONE, Richard, K. ,  LANGNER, Andreas ,  REED, Kenneth, J.

IPC: B01J23/10 ,  B01J23/00

CPC classification number: B01J35/0013 ,  B01J23/002 ,  B01J23/10 ,  B01J23/22 ,  B01J23/24 ,  B01J23/34 ,  B01J23/72 ,  B01J23/74 ,  B01J23/745 ,  B01J37/03 ,  B01J2523/00 ,  B82Y30/00 ,  C01F17/0018 ,  C01F17/0043 ,  C01G3/00 ,  C01G25/00 ,  C01G49/0054 ,  C01G49/009 ,  C01P2002/30 ,  C01P2002/52 ,  C01P2002/70 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/51 ,  C01P2004/64 ,  C10L1/10 ,  C10L1/1233 ,  C10L1/125 ,  C10L1/1608 ,  C10L1/1616 ,  C10L1/1824 ,  C10L1/1852 ,  C10L1/1881 ,  C10L1/1883 ,  C10L1/2222 ,  C10L10/00 ,  C10L10/08 ,  C10M125/10 ,  C10N2210/03 ,  C10N2220/082 ,  C10N2230/06 ,  C10N2240/10 ,  C10N2240/102 ,  B01J2523/3712 ,  B01J2523/48 ,  B01J2523/17 ,  B01J2523/842

Abstract: A process for making cerium dioxide nanoparticles containing at least one transition metal (M) utilizing a suspension of cerium hydroxide nanoparticles prepared by mechanical shearing of an aqueous mixture containing an oxidant in an amount effective to enable oxidation of cerous ion to eerie ion, thereby forming a product stream that contains transition metal-containing cerium dioxide nanoparticles, Cel-xMxO2, wherein "x" has a value from about 0.3 to about 0.8. The nanoparticles thus obtained have a cubic fluorite structure, a mean hydrodynamic diameter in the range of about 1 nm to about 10 nm, and a geometric diameter of less than about 4 run. The transition metal-containing crystalline cerium dioxide nanoparticles can be used to prepare a dispersion of the particles in a nonpolar medium.

公开(公告)号：EP2074201A1

公开(公告)日：2009-07-01

申请号：EP07814661.0

申请日：2007-09-04

Applicant: Cerion Technology, Inc.

Inventor： REED, Kenneth, J.

IPC: C10L1/32

CPC classification number: B01J23/10 ,  B01F3/0807 ,  B01F7/164 ,  B01J13/0047 ,  B01J13/0086 ,  B82Y30/00 ,  C01F17/0043 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/52 ,  C01P2004/64 ,  C10L1/10 ,  C10L1/103 ,  C10L1/1233 ,  C10L1/125 ,  C10L1/1258 ,  C10L1/1608 ,  C10L1/1616 ,  C10L1/1811 ,  C10L1/1824 ,  C10L1/1881 ,  C10L1/1883 ,  C10L1/19 ,  C10L1/1985 ,  C10L1/2222 ,  C10L1/2437 ,  C10L10/02 ,  C10L10/08 ,  C10L10/12 ,  C10M2201/062 ,  C10N2230/06 ,  C10N2240/10 ,  Y02T50/678 ,  C10N2210/03 ,  C10N2220/082

Abstract: A method of making cerium dioxide nanoparticles includes: a) providing an aqueous reaction mixture having a source of cerous ion, a source of hydroxide ion, a nanoparticle stabilizer, and an oxidant at an initial temperature no higher than about 20° C.; b) mechanically shearing the mixture and causing it to pass through a perforated screen, thereby forming a suspension of cerium hydroxide nanoparticles; and c) raising the initial temperature to achieve oxidation of cerous ion to eerie ion and thereby form cerium dioxide nanoparticles having a mean diameter in the range of about 1 nm to about 15 nm. The cerium dioxide nanoparticles may be formed in a continuous process.

公开(公告)号：EP2074201A4

公开(公告)日：2011-09-14

申请号：EP07814661

申请日：2007-09-04

Applicant: CERION TECHNOLOGY INC

Inventor： REED KENNETH J

IPC: C10L1/10 ,  B01F3/00 ,  B01F3/08 ,  B01F5/00 ,  B01F7/00 ,  B01F7/16 ,  B01F17/00 ,  B01J13/00 ,  C10L10/02 ,  C10L10/08 ,  C10L10/12 ,  C10M125/10

CPC classification number: B01J23/10 ,  B01F3/0807 ,  B01F7/164 ,  B01J13/0047 ,  B01J13/0086 ,  B82Y30/00 ,  C10L1/10 ,  C10L1/103 ,  C10L1/1233 ,  C10L1/125 ,  C10L1/1258 ,  C10L1/1608 ,  C10L1/1616 ,  C10L1/1811 ,  C10L1/1824 ,  C10L1/1881 ,  C10L1/1883 ,  C10L1/19 ,  C10L1/1985 ,  C10L1/2222 ,  C10L1/2437 ,  C10L10/02 ,  C10L10/08 ,  C10L10/12 ,  C10M2201/062 ,  C10N2230/06 ,  C10N2240/10 ,  Y02T50/678 ,  C10N2210/03 ,  C10N2220/082

Abstract: A method of making cerium dioxide nanoparticles includes: a) providing an aqueous reaction mixture having a source of cerous ion, a source of hydroxide ion, a nanoparticle stabilizer, and an oxidant at an initial temperature no higher than about 20° C.; b) mechanically shearing the mixture and causing it to pass through a perforated screen, thereby forming a suspension of cerium hydroxide nanoparticles; and c) raising the initial temperature to achieve oxidation of cerous ion to eerie ion and thereby form cerium dioxide nanoparticles having a mean diameter in the range of about 1 nm to about 15 nm. The cerium dioxide nanoparticles may be formed in a continuous process.

公开(公告)号：EP2066767A1

公开(公告)日：2009-06-10

申请号：EP07814656.0

申请日：2007-09-04

Applicant: Cerion Technology, Inc.

Inventor： REED, Kenneth, J.

IPC: C10L10/00

CPC classification number: B01J23/10 ,  B01F3/0807 ,  B01F7/164 ,  B01J13/0047 ,  B01J13/0086 ,  B82Y30/00 ,  C01F17/0043 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/52 ,  C01P2004/64 ,  C10L1/10 ,  C10L1/103 ,  C10L1/1233 ,  C10L1/125 ,  C10L1/1258 ,  C10L1/1608 ,  C10L1/1616 ,  C10L1/1811 ,  C10L1/1824 ,  C10L1/1881 ,  C10L1/1883 ,  C10L1/19 ,  C10L1/1985 ,  C10L1/2222 ,  C10L1/2437 ,  C10L10/02 ,  C10L10/08 ,  C10L10/12 ,  C10M2201/062 ,  C10N2230/06 ,  C10N2240/10 ,  Y02T50/678 ,  C10N2210/03 ,  C10N2220/082

Abstract: A method of making cerium dioxide nanoparticles includes: a) providing an aqueous reaction mixture having a source of cerous ion, a source of hydroxide ion, a nanoparticle stabilizer, and an oxidant at an initial temperature no higher than about 20° C.; b) mechanically shearing the mixture and causing it to pass through a perforated screen, thereby forming a suspension of cerium hydroxide nanoparticles; and c) raising the initial temperature to achieve oxidation of cerous ion to eerie ion and thereby form cerium dioxide nanoparticles having a mean diameter in the range of about 1 nm to about 15 nm. The cerium dioxide nanoparticles may be formed in a continuous process.

公开(公告)号：EP2569248A1

公开(公告)日：2013-03-20

申请号：EP11730100.2

申请日：2011-05-13

Applicant: Cerion Technology, Inc.

Inventor： REED, Kenneth J. ,  DIFRANCISCO, Albert Gary ,  PROK, Gary R. ,  HAILSTONE, Richard K.

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

CPC classification number: 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

Abstract: 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.

公开(公告)号：EP2545147A2

公开(公告)日：2013-01-16

申请号：EP11753710.0

申请日：2011-03-08

Applicant: Cerion Technology, Inc.

Inventor： REED, Kenneth J. ,  DIFRANCISCO, Albert Gary ,  HAILSTONE, Richard K. ,  PROK, Gary R. ,  ALLSTON, Thomas D.

IPC: C10M125/10

CPC classification number: B01J23/10 ,  B01J23/002 ,  B01J23/83 ,  B01J37/0221 ,  B01J37/031 ,  B01J37/035 ,  B82Y30/00 ,  B82Y40/00 ,  C01F17/0018 ,  C01F17/0043 ,  C01G49/00 ,  C01G49/009 ,  C01P2002/52 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/45 ,  C01P2004/64 ,  C01P2004/84 ,  C10L1/1233 ,  C10L10/02 ,  C10M125/10 ,  C10M2201/062 ,  C10N2220/082 ,  C10N2250/12 ,  Y10S977/775 ,  Y10S977/811 ,  Y10S977/89 ,  Y10S977/902

Abstract: A method for forming a structured doped cerium oxide nanoparticle including the steps of forming a first aqueous cerium(lll) reaction mixture, with optional metal/s other than cerium, a base, and a stabilizer; introducing an oxidant to singly oxidize cerium (III), followed by thermal formation of a doped cerium oxide nanoparticle core; then providing a second reaction mixture of one or more metal ions other than cerium, and optionally cerium (III) ions and sufficient cerium (III) oxidant, followed by thermally converting the mixture into a shell around the doped cerium oxide nanoparticle core, wherein the ratio of metal ions in the core differs from the ratio of metal ions in the shell. The disclosed structured doped cerium oxide nanoparticle may exhibit cubic fluorite crystal structure and possess a diameter in the range 1 nm-20 nm. A dispersion of the developed nanoparticle may be used as a fuel additive.