ES2141281T3 - Preparacion de particulas mezcladas ultrafinas a partir de una microemulsion pfpe. - Google Patents

Preparacion de particulas mezcladas ultrafinas a partir de una microemulsion pfpe.

Info

Publication number
ES2141281T3
ES2141281T3 ES95108723T ES95108723T ES2141281T3 ES 2141281 T3 ES2141281 T3 ES 2141281T3 ES 95108723 T ES95108723 T ES 95108723T ES 95108723 T ES95108723 T ES 95108723T ES 2141281 T3 ES2141281 T3 ES 2141281T3
Authority
ES
Spain
Prior art keywords
perfluopolieter
preparation
valencia
surfactant
metals
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.)
Expired - Lifetime
Application number
ES95108723T
Other languages
English (en)
Inventor
Alba Chittofrati
Viviana Boselli
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.)
Solvay Specialty Polymers Italy SpA
Original Assignee
Ausimont SpA
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 Ausimont SpA filed Critical Ausimont SpA
Application granted granted Critical
Publication of ES2141281T3 publication Critical patent/ES2141281T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • C01B13/32—Methods for preparing oxides or hydroxides in general by oxidation or hydrolysis of elements or compounds in the liquid or solid state or in non-aqueous solution, e.g. sol-gel process
    • C01B13/328—Methods for preparing oxides or hydroxides in general by oxidation or hydrolysis of elements or compounds in the liquid or solid state or in non-aqueous solution, e.g. sol-gel process by processes making use of emulsions, e.g. the kerosine process
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/51—Particles with a specific particle size distribution
    • C01P2004/52—Particles with a specific particle size distribution highly monodisperse size distribution
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S516/00—Colloid systems and wetting agents; subcombinations thereof; processes of
    • Y10S516/922—Colloid systems having specified particle size, range, or distribution, e.g. bimodal particle distribution
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S516/00—Colloid systems and wetting agents; subcombinations thereof; processes of
    • Y10S516/924—Significant dispersive or manipulative operation or step in making or stabilizing colloid system
    • Y10S516/927—Significant dispersive or manipulative operation or step in making or stabilizing colloid system in situ formation of a colloid system making or stabilizing agent which chemical reaction

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Inorganic Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Composite Materials (AREA)
  • Power Engineering (AREA)
  • Colloid Chemistry (AREA)
  • Medicinal Preparation (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Seasonings (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

PROCESO PARA LA PREPARACION DE DISPERSIONES QUE CONTIENEN OXIDOS MEZCLADOS QUE TIENEN UN TAMAÑO DE PARTICULA INFERIOR O IGUAL A 50 NM Y QUE TIENEN UNA DISTRIBUCION DE TAMAÑO ESTRECHA, QUE COMPRENDE LOS SIGUIENTES PASOS: P1) PREPARACION DE UNA MICROEMULSION DE AGUA EN ACEITE, SIENDO EL ACEITE UN PERFLUOPOLIETER, SIENDO DICHA MICROEMULSION OBTENIDA MEDIANTE LA UTILIZACION DE UN SURFACTANTE DE PERFLUOPOLIETER, CONSTANDO LA FASE ACUOSA DE UNA SOLUCION DE UNA SAL INORGANICA DE UN METAL M1; P2) PREPARACION DE UNA SAL DE METAL M2 DE UN SURFACTANTE DE PERFLUOPOLIETER ANIONICO, TAL SAL SIENDO SOLUBLE EN EL ACEITE DE PERFLUOPOLIETER UTILIZADO EN P1, LA CANTIDAD POR MOLES DE SURFACTANTE SIENDO TAL COMO PARA UNIRSE COMPLETAMENTE AL CATION Y PARA NO SER EN EXCESO; P3) AÑADIR P2 A P1 PARA OBTENER EL SISTEMA DE REACCION QUE CONTIENE LOS DOS METALES M1 Y M2; M1 EN FASE ACUOSA Y M2 EN FASE DE ACEITE DE PERFLUOPOLIETER; P4) AÑADIR UNA SOLUCION ALCALI A P3 CON CALENTAMIENTO CONTEMPORANEO O POSTERIOR, SI P3 TODAVIA NO SE HA CALENTADO, A LA TEMPERATURA NECESARIA PARA FORMAR EL OXIDO DESEADO; A CONTINUACION REFRIGERACION Y SEPARACION DEL FLOTANTE ACUOSO; M1 Y M2 PERTENECEN A LOS METALES CAPACES DE DAR OXIDOS; CUANDO LOS DOS METALES M1 Y M2 TIENEN DIFERENTE VALENCIA, ENTONCES M1 ES EL ION DE METAL CON VALENCIA INFERIOR, DIFERENTE DE FE(II), OPCIONALMENTE AGREGADO A FE(II), M2 ES EL ION DE METAL CON VALENCIA SUPERIOR.
ES95108723T 1994-06-09 1995-06-07 Preparacion de particulas mezcladas ultrafinas a partir de una microemulsion pfpe. Expired - Lifetime ES2141281T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI941211A IT1270199B (it) 1994-06-09 1994-06-09 Preparazione di particelle miste ultrafini da microemulsioni di pepe

Publications (1)

Publication Number Publication Date
ES2141281T3 true ES2141281T3 (es) 2000-03-16

Family

ID=11369091

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95108723T Expired - Lifetime ES2141281T3 (es) 1994-06-09 1995-06-07 Preparacion de particulas mezcladas ultrafinas a partir de una microemulsion pfpe.

Country Status (7)

Country Link
US (1) US5670088A (es)
EP (1) EP0686447B1 (es)
JP (1) JP3862768B2 (es)
AT (1) ATE186862T1 (es)
DE (1) DE69513444T2 (es)
ES (1) ES2141281T3 (es)
IT (1) IT1270199B (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6413489B1 (en) * 1997-04-15 2002-07-02 Massachusetts Institute Of Technology Synthesis of nanometer-sized particles by reverse micelle mediated techniques
US6036735A (en) * 1998-03-17 2000-03-14 Jps Converter And Industrial Fabrics Corporation Finish for glass fiber fabric
US8637055B2 (en) 2002-06-24 2014-01-28 Ahava-Dead Sea Laboratories Ltd. Cosmetic compositions containing small magnetic particles
JP4812233B2 (ja) * 2003-02-28 2011-11-09 トヨタ自動車株式会社 複合酸化物の製造方法
EP1479651B2 (en) † 2003-05-21 2017-07-19 Toyota Jidosha Kabushiki Kaisha Method for production of porous composite oxide
JP4857526B2 (ja) * 2004-05-06 2012-01-18 トヨタ自動車株式会社 複合酸化物粉末の製造方法
JP4576909B2 (ja) * 2004-07-13 2010-11-10 トヨタ自動車株式会社 多孔質体の製造方法
US20090098044A1 (en) * 2004-11-15 2009-04-16 Australian Nuclear Science And Technology Organisation Solid particles from controlled destabilisation of microemulsions
EP2513172B1 (en) 2009-12-18 2014-02-26 Solvay Specialty Polymers Italy S.p.A. Method for manufacturing fluoroelastomers
CN102762611B (zh) * 2009-12-18 2015-11-25 索尔维特殊聚合物意大利有限公司 生产氟聚合物的方法
CN106298146B (zh) * 2016-10-26 2018-06-05 山东大学 一种提高FeCoB/FeB磁性液体稳定性的新方法
CN110201659A (zh) * 2019-05-14 2019-09-06 齐鲁理工学院 一种活性炭负载纳米级二氧化钛的方法
CN113813798B (zh) * 2021-09-28 2023-11-14 浙江工商大学 一种钴@铁双金属氢氧化物纳米粒子掺杂的混合基质超滤膜及其制备方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665041A (en) * 1967-04-04 1972-05-23 Montedison Spa Perfluorinated polyethers and process for their preparation
US3764540A (en) * 1971-05-28 1973-10-09 Us Interior Magnetofluids and their manufacture
US3843540A (en) * 1972-07-26 1974-10-22 Us Interior Production of magnetic fluids by peptization techniques
US4094804A (en) * 1974-08-19 1978-06-13 Junzo Shimoiizaka Method for preparing a water base magnetic fluid and product
US4523039A (en) * 1980-04-11 1985-06-11 The University Of Texas Method for forming perfluorocarbon ethers
FR2515198A1 (fr) * 1981-10-22 1983-04-29 Centre Nat Rech Scient Microemulsions aqueuses de fluorocarbures indefiniment stables a une temperature donnee, procede d'obtention et application a titre de transporteurs d'oxygene
DE3485616D1 (de) * 1983-12-26 1992-05-07 Daikin Ind Ltd Verfahren zur herstellung von halogen enthaltenden polyathern
CA1272011A (en) * 1984-08-29 1990-07-31 William R. Bushey Process for forming solid solutions
IT1188635B (it) * 1986-03-27 1988-01-20 Ausimont Spa Lubrificanti per fluoropolieterei interni per mezzi magnetici di registrazione
IL82308A (en) * 1986-06-26 1990-11-29 Ausimont Spa Microemulsions containing perfluoropolyethers
FR2606419B1 (fr) * 1986-11-07 1994-04-01 Commissariat A Energie Atomique Procede de fabrication d'une composition ferromagnetique, cristal liquide ferromagnetique obtenu par ce procede et dispositif utilisant ce cristal liquide
DE3887681T2 (de) * 1987-11-27 1994-05-11 Battelle Memorial Institute Überkritische mizellentrennung in der flüssig-umkehrphase.
ES2009404A6 (es) * 1988-11-24 1989-09-16 Quintela Manuel Arturo Lopez Procedimiento para a obtencion de particulas magneticas ultrafinas de nd-fe-b de diferentes tamanos.
US5147841A (en) * 1990-11-23 1992-09-15 The United States Of America As Represented By The United States Department Of Energy Method for the preparation of metal colloids in inverse micelles and product preferred by the method
US5147573A (en) * 1990-11-26 1992-09-15 Omni Quest Corporation Superparamagnetic liquid colloids
IT1256721B (it) * 1992-12-16 1995-12-15 Ausimont Spa Processo per impartire oleo- ed idro-repellenza alla superficie di materiali ceramici porosi

Also Published As

Publication number Publication date
EP0686447B1 (en) 1999-11-24
ITMI941211A0 (it) 1994-06-09
EP0686447A2 (en) 1995-12-13
DE69513444D1 (de) 1999-12-30
JPH0838879A (ja) 1996-02-13
ITMI941211A1 (it) 1995-12-09
EP0686447A3 (en) 1997-01-29
IT1270199B (it) 1997-04-29
US5670088A (en) 1997-09-23
DE69513444T2 (de) 2000-07-06
ATE186862T1 (de) 1999-12-15
JP3862768B2 (ja) 2006-12-27

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