ES2121639T3 - Acido silicico precipitado. - Google Patents

Acido silicico precipitado.

Info

Publication number
ES2121639T3
ES2121639T3 ES97104764T ES97104764T ES2121639T3 ES 2121639 T3 ES2121639 T3 ES 2121639T3 ES 97104764 T ES97104764 T ES 97104764T ES 97104764 T ES97104764 T ES 97104764T ES 2121639 T3 ES2121639 T3 ES 2121639T3
Authority
ES
Spain
Prior art keywords
silicon acid
precipitated silicon
value
precipitated
absorbence
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
ES97104764T
Other languages
English (en)
Other versions
ES2121639T5 (es
Inventor
Mustafa Dr Siray
Robert Kuhlmann
Arnold Dr Storeck
Mathias Neumuller
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26024194&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2121639(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE19642448A external-priority patent/DE19642448A1/de
Application filed by Degussa GmbH filed Critical Degussa GmbH
Publication of ES2121639T3 publication Critical patent/ES2121639T3/es
Application granted granted Critical
Publication of ES2121639T5 publication Critical patent/ES2121639T5/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/113—Silicon oxides; Hydrates thereof
    • C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
    • C01B33/187—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates
    • C01B33/193—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates of aqueous solutions of silicates
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/25—Silicon; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/41—Particular ingredients further characterized by their size
    • A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
    • 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
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity
    • C01P2006/82—Compositional purity water content

Abstract

ACIDO SILICICO DE PRECIPITACION QUE PRESENTA UNA SUPERFICIE BET DE 25-350 M{SUP,2}/G, UNA SUPERFICIE CTAB DE 25-150 M{SUP,2}/G, UNA CAPTACION DE DBP DE 150-300 G/100 G, UN DIAMETRO MEDIO DE PARTICULA DE 5-20 {MI}M, UNA ABRASION DE CU EN UNA DISPERSION DE GLICERINA AL 10 % DE 1-20 MG Y UN INDICE DE REFRACCION DE 1,4401,451. SE PREPARA AÑADIENDO A UNA SOLUCION DE SILICATO ALCALINO CON UNA CONCENTRACION ENTRE 1,5 Y 23 G/L NA{SUB,2}O (SILICATO ALCALINO: RELACION DE PESOS SIO{SUB,2}/NA{SUB,2}O = 3,2-3,5) UNA SOLUCION DE ACIDO Y UNA SOLUCION DE SILICATO ALCALINO CON CONCENTRACIONES Y VELOCIDADES DETERMINADAS MANTENIENDO LA TEMPERATURA DE PRECIPITACION ENTRE 60 Y 90 (GRADOS) C DE TAL FORMA QUE SE PRODUCE UN AUMENTO DE LA VISCOSIDAD DESPUES DE COMO MAXIMO UN 20 % DEL TIEMPO TOTAL DE PRECIPITACION, Y LA ADICION DE LOS COMPUESTOS DE REACCION NO TERMINA HASTA QUE EL CONTENIDO DE ACIDO SILILICO ES SUPERIOR A 130 G/L. A CONTINUACION SE AJUSTA EL PH DE LA SUSPENSION A MENOS DE 6 MEDIANTE LA ADICION DE ACIDO, SE SEPARA EL SOLIDO MEDIANTE FILTRACION, SE LAVA, SE SECA Y SE TRITURA. EL ACIDO SILILICO PRECIPITANTE SE PUEDE APLICAR A LA PREPARACION DE PASTAS DENTRIFICAS Y/O PRODUCTOS DE HIGIENE DENTAL.
ES97104764T 1996-03-27 1997-03-20 Silice precipitada. Expired - Lifetime ES2121639T5 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19612118 1996-03-27
DE19642448A DE19642448A1 (de) 1996-03-27 1996-10-15 Fällungskieselsäure

Publications (2)

Publication Number Publication Date
ES2121639T3 true ES2121639T3 (es) 1998-12-01
ES2121639T5 ES2121639T5 (es) 2002-08-01

Family

ID=26024194

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97104764T Expired - Lifetime ES2121639T5 (es) 1996-03-27 1997-03-20 Silice precipitada.

Country Status (5)

Country Link
EP (1) EP0798266B2 (es)
AT (1) ATE168663T1 (es)
DK (1) DK0798266T4 (es)
ES (1) ES2121639T5 (es)
GR (1) GR3027690T3 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10048616A1 (de) 2000-09-30 2002-04-11 Degussa Dotierte Fällungskieselsäure
DE10124298A1 (de) * 2001-05-17 2002-11-21 Degussa Verfahren zur Herstellung von Kieselsäuren und Silikaten durch saure Fällung von Silikaten mit konstantem Kationenüberschuß
DE10146325A1 (de) * 2001-09-20 2003-04-10 Degussa Fällungskieselsäure mit hohem BET/CTAB-Verhältnis
DE102014113411A1 (de) 2014-09-17 2016-03-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Anorganische, Silica-basierte Feststoff-Schaumpartikel mit geschlossenen Innenporen, ihre Herstellung und ihre Verwendung als Füll- oder Speicherstoff
EP4243759A1 (en) * 2020-11-10 2023-09-20 Rhodia Operations Whitening oral care compositions
CN115385347B (zh) * 2022-09-05 2023-03-14 金三江(肇庆)硅材料股份有限公司 一种可调节孔径的沉淀型二氧化硅及其制备方法和应用

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59163306A (ja) * 1983-03-08 1984-09-14 Taki Chem Co Ltd 歯磨用シリカ基剤及びその製法
US5225177A (en) † 1990-01-19 1993-07-06 J. M. Huber Corporation Dentifrice abrasives and compositions
EP0495039B2 (en) * 1990-08-06 2003-10-08 INEOS Silicas Limited Silicas
KR960010781B1 (ko) * 1991-10-02 1996-08-08 유니레버 엔브이 실리카
JP2971946B2 (ja) * 1992-10-28 1999-11-08 クロスフィールド・リミテッド シリカ
DE4423493A1 (de) * 1993-08-07 1995-02-09 Degussa Verfahren zur Herstellung einer Fällungskieselsäure

Also Published As

Publication number Publication date
EP0798266B2 (de) 2002-01-02
GR3027690T3 (en) 1998-11-30
EP0798266A1 (de) 1997-10-01
EP0798266B1 (de) 1998-07-22
ATE168663T1 (de) 1998-08-15
DK0798266T4 (da) 2002-03-18
DK0798266T3 (da) 1999-02-15
ES2121639T5 (es) 2002-08-01

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