AU2002217209A1 - Aqueous rare earth phosphate colloidal dispersion and preparation method - Google Patents

Aqueous rare earth phosphate colloidal dispersion and preparation method

Info

Publication number
AU2002217209A1
AU2002217209A1 AU2002217209A AU1720902A AU2002217209A1 AU 2002217209 A1 AU2002217209 A1 AU 2002217209A1 AU 2002217209 A AU2002217209 A AU 2002217209A AU 1720902 A AU1720902 A AU 1720902A AU 2002217209 A1 AU2002217209 A1 AU 2002217209A1
Authority
AU
Australia
Prior art keywords
rare earth
complexing agent
colloidal dispersion
anion
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU2002217209A
Inventor
Jean-Yves Chane-Ching
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhodia Electronics and Catalysis SAS
Original Assignee
RHODIA ELECT and CATALYSIS
Rhodia Electronics and Catalysis SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RHODIA ELECT and CATALYSIS, Rhodia Electronics and Catalysis SAS filed Critical RHODIA ELECT and CATALYSIS
Publication of AU2002217209A1 publication Critical patent/AU2002217209A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/0004—Preparation of sols
    • B01J13/0008—Sols of inorganic materials in water
    • B01J13/0013—Sols of inorganic materials in water from a precipitate

Abstract

The invention concerns an aqueous colloidal dispersion of isotropic particles of a phosphate of at least one rare earth and is characterized in that it comprises either a complexing agent with a pK (cologarithm of the dissociation constant of the complex formed by the complexing agent and said rare earth) of more than 2.5; or an anion of a monobasic acid, soluble in water and with a pKa in the range 2.5 to 5; or said complexing agent and/or said anion of a monobasic acid. In the case of cerium and lanthanum, the mean particle size is at most 20 nm. The dispersions can have a degree of colloid agglomeration of less than 40%.This dispersion can be prepared by forming an aqueous mixture comprising at least one rare earth salt and the complexing agent or monobasic acid anion; by adding a base then phosphate ions to the mixture formed; and heating the mixture obtained. A precipitate is obtained that is re-dispersed in water.
AU2002217209A 2000-12-08 2001-12-07 Aqueous rare earth phosphate colloidal dispersion and preparation method Abandoned AU2002217209A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0016004A FR2817770B1 (en) 2000-12-08 2000-12-08 AQUEOUS COLLOIDAL DISPERSION OF RARE EARTH PHOSPHATE AND PREPARATION METHOD
FR0016004 2000-12-08
PCT/FR2001/003874 WO2002045840A1 (en) 2000-12-08 2001-12-07 Aqueous rare earth phosphate colloidal dispersion and preparation method

Publications (1)

Publication Number Publication Date
AU2002217209A1 true AU2002217209A1 (en) 2002-06-18

Family

ID=8857426

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002217209A Abandoned AU2002217209A1 (en) 2000-12-08 2001-12-07 Aqueous rare earth phosphate colloidal dispersion and preparation method

Country Status (13)

Country Link
US (2) US20040044088A1 (en)
EP (1) EP1349648B1 (en)
JP (1) JP4117835B2 (en)
KR (1) KR100536867B1 (en)
CN (1) CN1309467C (en)
AT (1) ATE502694T1 (en)
AU (1) AU2002217209A1 (en)
CA (1) CA2431261C (en)
DE (1) DE60144290D1 (en)
FR (1) FR2817770B1 (en)
MX (1) MXPA03005108A (en)
TW (1) TW575458B (en)
WO (1) WO2002045840A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2859922B1 (en) * 2003-09-18 2007-01-05 Rhodia Elect & Catalysis COLLOIDAL DISPERSION OF A RARE EARTH PHOSPHATE, PROCESS FOR PREPARING THE SAME, AND TRANSPARENT LUMINESCENT MATERIAL OBTAINED FROM THE DISPERSION
CN100473637C (en) * 2003-10-09 2009-04-01 株式会社村田制作所 Rare earth metal compound in aqueous solvent, method for producing the same, and method for producing ceramic powder using the same
US7837888B2 (en) * 2006-11-13 2010-11-23 Cabot Microelectronics Corporation Composition and method for damascene CMP
FR2931143B1 (en) * 2008-05-15 2011-01-07 Rhodia Operations PHOSPHATE OF LANTHANE AND AT LEAST ONE RARE EARTH CHOSEN AMONG CERIUM AND TERBIUM IN THE FORM OF A SUSPENSION, PROCESS FOR THEIR PREPARATION AND USE AS A LUMINOPHORE
FR2938523B1 (en) * 2008-11-20 2011-01-07 Rhodia Operations CERIUM AND / OR TERBIUM PHOSPHATE, POSSIBLY WITH LANTHANE, LUMINOPHORE FROM THIS PHOSPHATE AND PROCESSES FOR THE PREPARATION THEREOF
US8572502B2 (en) * 2008-11-21 2013-10-29 Honeywell International Inc. Building control system user interface with docking feature
FR2943658B1 (en) * 2009-03-24 2011-07-22 Rhodia Operations COMPOSITION COMPRISING A CERIUM PHOSPHATE AND / OR TERBIUM, HEART / SHELL TYPE, LUMINOPHORE THEREOF AND METHODS FOR PREPARING THE SAME
FR2958639B1 (en) * 2010-04-12 2014-01-31 Rhodia Operations LANTHANE, CERIUM PHOSPHATE AND HEART / SHELL TYPE TERBIUM, LUMINOPHORE WITH IMPROVED THERMAL STABILITY COMPRISING THE PHOSPHATE.
RU2509069C2 (en) * 2012-07-11 2014-03-10 Федеральное государственное бюджетное учреждение науки Ордена Трудового Красного Знамени Институт химии силикатов им. И.В. Гребенщикова Российской академии наук (ИХС РАН) Method of producing ceramic based on rare-earth element orthophosphates
JP6128799B2 (en) * 2012-10-31 2017-05-17 三井金属鉱業株式会社 Optical material, method for producing the same, and aqueous dispersion
CN113041965B (en) * 2021-03-11 2022-04-29 廊坊师范学院 Preparation method of titanium phosphate sol

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2082233A (en) * 1933-03-08 1937-06-01 Heyden Chem Fab Manufacture of preparations having an anti-emetic action
US3615807A (en) * 1969-04-01 1971-10-26 Du Pont Positively charged fibrous cerium phosphate
FR2620437B1 (en) * 1987-09-14 1990-11-30 Rhone Poulenc Chimie PROCESS FOR OBTAINING COLLOIDAL DISPERSION OF A RARE EARTH COMPOUND IN AQUEOUS MEDIA AND PRODUCT OBTAINED
US5198487A (en) * 1989-02-01 1993-03-30 Union Oil Company Of California Process for preparing salt-containing surface coating polymer compositions
FR2672281B1 (en) * 1991-02-04 1993-04-16 Rhone Poulenc Chimie LANTHANE MIXED PHOSPHATE, TERBIUM AND CERIUM, MANUFACTURING METHOD THEREOF.
US5268614A (en) * 1991-02-19 1993-12-07 General Electric Company Fluorescent lamps and improved yttrium-containing phosphors useful therein
FR2694299B1 (en) * 1992-07-29 1994-09-09 Rhone Poulenc Chimie New green phosphors based on mixed lanthanum phosphate, cerium and terbium, their precursor and synthesis processes.
FR2694281B1 (en) * 1992-07-29 1994-09-16 Rhone Poulenc Chimie Process for the preparation of rare earth phosphates and products obtained.
CA2245741C (en) 1996-02-05 2002-12-31 Nippon Steel Corporation Corrosion resistant surface treated metal material and surface treatment agent therefor
FR2795065B1 (en) * 1999-06-16 2002-04-19 Rhodia Chimie Sa SOL OF A CERIUM AND / OR LANTHANE PHOSPHATE, PREPARATION METHOD AND USE FOR POLISHING
FR2817771B1 (en) * 2000-12-08 2003-11-28 Rhodia Terres Rares COLLOIDAL RARE EARTH PHOSPHATE DISPERSION AND PREPARATION METHOD

Also Published As

Publication number Publication date
US7569613B2 (en) 2009-08-04
ATE502694T1 (en) 2011-04-15
TW575458B (en) 2004-02-11
CA2431261C (en) 2007-08-21
US20070179203A1 (en) 2007-08-02
KR20030080210A (en) 2003-10-11
FR2817770B1 (en) 2003-11-28
US20040044088A1 (en) 2004-03-04
DE60144290D1 (en) 2011-05-05
EP1349648A1 (en) 2003-10-08
WO2002045840A1 (en) 2002-06-13
JP4117835B2 (en) 2008-07-16
CN1309467C (en) 2007-04-11
FR2817770A1 (en) 2002-06-14
EP1349648B1 (en) 2011-03-23
MXPA03005108A (en) 2004-10-15
JP2004515433A (en) 2004-05-27
CA2431261A1 (en) 2002-06-13
CN1482945A (en) 2004-03-17
KR100536867B1 (en) 2005-12-16

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