RU2002116371A - COLLOIDAL DISPERSION OF CERIUM COMPOUND CONTAINING CERIUM III AND USE - Google Patents

COLLOIDAL DISPERSION OF CERIUM COMPOUND CONTAINING CERIUM III AND USE

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Publication number
RU2002116371A
RU2002116371A RU2002116371/15A RU2002116371A RU2002116371A RU 2002116371 A RU2002116371 A RU 2002116371A RU 2002116371/15 A RU2002116371/15 A RU 2002116371/15A RU 2002116371 A RU2002116371 A RU 2002116371A RU 2002116371 A RU2002116371 A RU 2002116371A
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RU
Russia
Prior art keywords
dispersion
cerium
water
dispersion according
content
Prior art date
Application number
RU2002116371/15A
Other languages
Russian (ru)
Other versions
RU2228295C2 (en
Inventor
Жан-Ив ШАН-ШИНГ
Original Assignee
Родиа Терр Рар
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
Priority claimed from FR9914576A external-priority patent/FR2801298B1/en
Application filed by Родиа Терр Рар filed Critical Родиа Терр Рар
Publication of RU2002116371A publication Critical patent/RU2002116371A/en
Application granted granted Critical
Publication of RU2228295C2 publication Critical patent/RU2228295C2/en

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Claims (14)

1. Коллоидная дисперсия соединения церия, отличающаяся тем, что концентрация оксида церия в ней составляет по меньшей мере 50 г/л, содержание церия III по отношению к общему содержанию церия - по меньшей мере 0,5%, удельная проводимость составляет не более 5 мСм/см, рН составляет от 4 до 8, и тем, что она состоит из частиц со средним диаметром не более 15 нм.1. Colloidal dispersion of the cerium compound, characterized in that the concentration of cerium oxide in it is at least 50 g / l, the cerium III content in relation to the total cerium content is at least 0.5%, the specific conductivity is not more than 5 mS / cm, the pH is from 4 to 8, and the fact that it consists of particles with an average diameter of not more than 15 nm. 2. Дисперсия по п.1, отличающаяся тем, что она имеет концентрацию по меньшей мере 100 г/л.2. The dispersion according to claim 1, characterized in that it has a concentration of at least 100 g / L. 3. Дисперсия по п.1 или 2, отличающаяся тем, что содержание церия III составляет по меньшей мере 1%.3. The dispersion according to claim 1 or 2, characterized in that the cerium III content is at least 1%. 4. Дисперсия по одному из пп.1-3, отличающаяся тем, что содержание нитратных анионов в ней составляет менее 80 ppm.4. The dispersion according to one of claims 1 to 3, characterized in that the content of nitrate anions in it is less than 80 ppm. 5. Дисперсия по одному из пп.1-4, отличающаяся тем, что она имеет удельную проводимость не более 2 мСм/см, предпочтительно не более 1 мСм/см.5. The dispersion according to one of claims 1 to 4, characterized in that it has a specific conductivity of not more than 2 mS / cm, preferably not more than 1 mS / cm. 6. Дисперсия по одному из пп.1-5, отличающаяся тем, что непрерывная фаза образована водой.6. The dispersion according to one of claims 1 to 5, characterized in that the continuous phase is formed by water. 7. Дисперсия по одному из пп.1-5, отличающаяся тем, что непрерывная фаза образована смесью вода/смешивающийся с водой растворитель или органическим растворителем.7. The dispersion according to one of claims 1 to 5, characterized in that the continuous phase is formed by a mixture of water / water-miscible solvent or an organic solvent. 8. Дисперсия по одному из пп.1-7, применимая в качестве антикоррозионного агента на субстрате, для получения полимерных пленок, в косметической композиции, в катализе, в частности, для катализа отработанных газов в автомобиле, в производстве смазочных материалов или в керамике.8. The dispersion according to one of claims 1 to 7, applicable as an anticorrosive agent on a substrate, to obtain polymer films, in a cosmetic composition, in catalysis, in particular for catalysis of exhaust gases in an automobile, in the production of lubricants or in ceramics. 9. Способ получения коллоидной дисперсии по одному из пп.1-7, отличающийся тем, что по меньшей мере одну соль церия III вводят в реакцию с основанием в присутствии кислоты, в таком количестве, при котором молярное отношение H+/Ce составляет более 1, после чего осадок, полученный в этой реакции, диспергируют в воде.9. A method of producing a colloidal dispersion according to one of claims 1 to 7, characterized in that at least one cerium III salt is reacted with a base in the presence of acid, in such an amount that the molar ratio H + / Ce is more than 1 after which the precipitate obtained in this reaction is dispersed in water. 10. Способ по п.9, отличающийся тем, что после диспергирования осадка в воде полученную дисперсию очищают ультрафильтрацией.10. The method according to claim 9, characterized in that after dispersing the precipitate in water, the resulting dispersion is purified by ultrafiltration. 11. Способ по п.9 или 10, отличающийся тем, что солью церия III является ацетат или хлорид.11. The method according to claim 9 or 10, characterized in that the cerium III salt is acetate or chloride. 12. Способ по одному из пп.9-11, отличающийся тем, что указанной кислотой является уксусная кислота или соляная кислота.12. The method according to one of claims 9 to 11, characterized in that said acid is acetic acid or hydrochloric acid. 13. Способ по одному из пп.9-12, отличающийся тем, что реакцию проводят по непрерывной схеме.13. The method according to one of claims 9 to 12, characterized in that the reaction is carried out in a continuous manner. 14. Способ по одному из пп.9-13, отличающийся тем, что для получения дисперсии по п.7 проводят дополнительные операции, заключающиеся в добавлении к водной дисперсии органического растворителя, с последующей дистилляцией для удаления воды или обработкой дисперсии на ультрафильтрационной мембране для постепенного удаления воды.14. The method according to one of claims 9 to 13, characterized in that to obtain the dispersion according to claim 7, additional operations are carried out consisting in adding an organic solvent to the aqueous dispersion, followed by distillation to remove water or processing the dispersion on an ultrafiltration membrane for gradual water removal.
RU2002116371/15A 1999-11-19 2000-11-17 Cerium (iii)-containing colloidal dispersion of cerium compound and its application RU2228295C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR99/14576 1999-11-19
FR9914576A FR2801298B1 (en) 1999-11-19 1999-11-19 COLLOIDAL DISPERSION OF A CERIUM COMPOUND CONTAINING CERIUM III, METHOD OF PREPARATION AND USE

Publications (2)

Publication Number Publication Date
RU2002116371A true RU2002116371A (en) 2004-04-20
RU2228295C2 RU2228295C2 (en) 2004-05-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2002116371/15A RU2228295C2 (en) 1999-11-19 2000-11-17 Cerium (iii)-containing colloidal dispersion of cerium compound and its application

Country Status (14)

Country Link
EP (1) EP1265815B1 (en)
JP (1) JP3950691B2 (en)
KR (1) KR100487453B1 (en)
CN (1) CN1212882C (en)
AT (1) ATE288403T1 (en)
BR (1) BR0015685A (en)
CA (1) CA2391946C (en)
DE (1) DE60017948T2 (en)
FR (1) FR2801298B1 (en)
MX (1) MXPA02004948A (en)
NO (1) NO20022374L (en)
RU (1) RU2228295C2 (en)
TW (1) TW500695B (en)
WO (1) WO2001036331A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2831177B1 (en) 2001-10-22 2005-02-18 Rhodia Elect & Catalysis COLLOIDAL DISPERSION AND COLORED POWDER OF CERIUM OR CERIUM AND TITANIUM, ZIRCONIUM, ALUMINUM OR RARE EARTH, PROCESS FOR THEIR PREPARATION AND THEIR USE
US7235142B2 (en) 2002-01-04 2007-06-26 University Of Dayton Non-toxic corrosion-protection rinses and seals based on cobalt
WO2003060019A1 (en) 2002-01-04 2003-07-24 University Of Dayton Non-toxic corrosion protection pigments based on cobalt
DE10337199A1 (en) * 2003-08-13 2005-03-10 Degussa cerium oxide powder
JP5013671B2 (en) * 2004-12-28 2012-08-29 日揮触媒化成株式会社 Method for producing metal oxide sol and metal oxide sol
US10041176B2 (en) 2005-04-07 2018-08-07 Momentive Performance Materials Inc. No-rinse pretreatment methods and compositions
FR2905371B1 (en) * 2006-08-31 2010-11-05 Rhodia Recherches & Tech HIGH REDUCIBILITY COMPOSITION BASED ON NANOMETRY CERIUM OXIDE ON A CARRIER, PREPARATION METHOD AND USE AS CATALYST
KR101773543B1 (en) 2015-06-30 2017-09-01 유비머트리얼즈주식회사 Abrasive particles, Polishing slurry and fabricating method of abrasive particles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1979000248A1 (en) * 1977-11-01 1979-05-17 Atomic Energy Authority Uk Production of dispersions
JPH062582B2 (en) * 1987-12-02 1994-01-12 多木化学株式会社 Crystalline ceric oxide sol and method for producing the same
US4800072A (en) * 1988-01-14 1989-01-24 Rhone Poulenc, Inc. Anhydrous cerous nitrate-ammonium nitrate complex and a process for its preparation from ceric ammonium nitrate
FR2724331B1 (en) * 1994-09-12 1996-12-13 Rhone Poulenc Chimie COLLOIDAL DISPERSIONS OF A HIGH PH CERIUM COMPOUND AND METHODS OF PREPARING THE SAME
US5962343A (en) * 1996-07-30 1999-10-05 Nissan Chemical Industries, Ltd. Process for producing crystalline ceric oxide particles and abrasive

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