CO4410418A1 - NEW PRECIPITATED SILICE PREPARATION PROCEDURE AND NEW PRECIPITATED SILICES. - Google Patents

NEW PRECIPITATED SILICE PREPARATION PROCEDURE AND NEW PRECIPITATED SILICES.

Info

Publication number
CO4410418A1
CO4410418A1 CO94050178A CO94050178A CO4410418A1 CO 4410418 A1 CO4410418 A1 CO 4410418A1 CO 94050178 A CO94050178 A CO 94050178A CO 94050178 A CO94050178 A CO 94050178A CO 4410418 A1 CO4410418 A1 CO 4410418A1
Authority
CO
Colombia
Prior art keywords
silice
precipitated
silicate
amount
sio2
Prior art date
Application number
CO94050178A
Other languages
Spanish (es)
Inventor
Chevallier Ynovick
Evelyne Prat
Original Assignee
Rhone Poulenc Chimie
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 Rhone Poulenc Chimie filed Critical Rhone Poulenc Chimie
Publication of CO4410418A1 publication Critical patent/CO4410418A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/50—Agglomerated particles
    • 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
    • C01P2006/11—Powder tap density
    • 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
    • C01P2006/14—Pore volume
    • 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
    • C01P2006/16—Pore diameter
    • 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
    • C01P2006/16—Pore diameter
    • C01P2006/17—Pore diameter distribution

Abstract

1. PROCEDIMIENTO DE PREPARACION DE SILICE PRECIPI- TADA DEL TIPO QUE COMPRENDE LA REACCION DE UN SI- LICATO DE METAL ALCALINO M CON UN AGENTE ACIDIFI- CANTE POR MEDIO DEL CUAL SE OBTIENE UNA SUSPENSION DE SILICE PRECIPITADO, LUEGO LA SEPARACION Y EL SECADO DE ESTA SUSPENSION, CARACTERIZADO EN QUE SE REALIZA LA PRECIPITACION DE LA MANERA SIGUIENTE: (i) SE FORMA UNA MEDIDA INICIAL QUE CONLLEVA UNA PARTE DE LA CANTIDAD TOTAL DEL SILICATO DE METAL ALCALINO M INVOLUCRADA DENTRO DE LA REACCION, LA CONCENTRACION EN SILICATO (EXPRESADA EN SiO2) DEN- TRO DE DICHA MEDIDA INICIAL SIENDO INFERIOR A 20 g/l, (ii) SE AGREGA EL AGENTE ACIDIFICANTE A LA MEDIDA INICIAL HASTA QUE AL MENOS 5% DE LA CANTIDAD DE M20 PRESENTE DENTRO DE DICHA MEDIDA INICIAL SEA NEUTRALIZADA, (iii) SE AGREGA EL MEDIO REACCIONAL SIMULTANEAMEN- TE EL AGENTE ACIDIFICANTE Y LA CANTIDAD RESTANTE DE SILICATO DE METAL ALCALINO M TAL QUE LA PROPOR- CION CANTIDAD DE SILICATO AGREGADO (EXPRESADO EN SiO2)/CANTIDAD DE SILICE PRESENTE EN LA MEDIDA INICIAL (EXPRESADO EN SiO2) SEA SUPERIOR A 4 Y A LO MAXIMO 100. 19. UN SILICE PRECIPITADO CARACTERIZADO EN QUE ES- TE POSEE: - UNA SUPERFICIE ESPECIFICA CTAB (S*CTAB*) COM- PRENDIDA ENTRE 140 Y 240 m2/g, - UN FACTOR DE DESAGLOMERACION AL ULTRASONIDO (F* D*) SUPERIOR A 11 ml, - UN DIAMETRO MEDIO (PHI 50), DESPUES DE DESAGLO- MERACION AL ULTRASONIDO, INFERIOR A 2,5 mm.1. PRECIPITATED SILICE PREPARATION PROCEDURE OF THE TYPE WHICH INCLUDES THE REACTION OF A METAL ALKALINE M SILICATE WITH AN ACIDIFYING AGENT BY WHICH A SUSPENSION OF PRECIPITATED SILICE IS OBTAINED, THEN THE SEPARATION AND DRYING OF THIS SUSPENSION, CHARACTERIZED IN WHICH PRECIPITATION IS CARRIED OUT AS FOLLOWS: (i) AN INITIAL MEASURE IS FORMED WHICH CONTAINS A PART OF THE TOTAL AMOUNT OF ALKALINE METAL SILICATE INVOLVED WITHIN THE REACTION, THE CONCENTRATION IN SILICATE ( SiO2) WITHIN SUCH INITIAL MEASURE BEING LESS THAN 20 g / l, (ii) THE ACIDIFYING AGENT IS ADDED TO THE INITIAL MEASURE UNTIL AT LEAST 5% OF THE AMOUNT OF M20 PRESENT WITHIN SUCH INITIAL MEASURE IS NEUTRALIZED, ( iii) THE REACTIONAL MEDIA IS ADDED SIMULTANEOUSLY THE ACIDIFYING AGENT AND THE REMAINING AMOUNT OF ALCALINE METAL SILICATE M AS THE PROPORTION AMOUNT OF ADDED SILICATE (EXPRESSED IN SiO2) / AMOUNT OF SILICE PRESENT IN L INITIAL SIZE (EXPRESSED IN SiO2) IS GREATER THAN 4 AND MAXIMUM 100. 19. A PRECIPITATED SILICON CHARACTERIZED IN WHICH IT HAS: - A SPECIFIC SURFACE CTAB (S * CTAB *), INCLUDED BETWEEN 140 AND 240 m2 / g, - A ULTRASOUND BREAKDOWN FACTOR (F * D *) GREATER THAN 11 ml, - A MEDIUM DIAMETER (PHI 50), AFTER BREAKDOWN- ULTRASOUND MERRATION, LESS THAN 2.5 mm.

CO94050178A 1994-08-12 1994-11-02 NEW PRECIPITATED SILICE PREPARATION PROCEDURE AND NEW PRECIPITATED SILICES. CO4410418A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9410046A FR2723581B1 (en) 1994-08-12 1994-08-12 NEW PROCESS FOR PREPARING PRECIPITATED SILICA

Publications (1)

Publication Number Publication Date
CO4410418A1 true CO4410418A1 (en) 1997-01-09

Family

ID=9466329

Family Applications (1)

Application Number Title Priority Date Filing Date
CO94050178A CO4410418A1 (en) 1994-08-12 1994-11-02 NEW PRECIPITATED SILICE PREPARATION PROCEDURE AND NEW PRECIPITATED SILICES.

Country Status (5)

Country Link
CO (1) CO4410418A1 (en)
FR (1) FR2723581B1 (en)
MY (1) MY115160A (en)
TW (1) TW307741B (en)
ZA (1) ZA948071B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2928363B1 (en) * 2008-03-10 2012-08-31 Rhodia Operations NOVEL PROCESS FOR THE PREPARATION OF PRECIPITED SILICES, PRECIPITED SILITIES WITH SPECIAL MORPHOLOGY, GRANULOMETRY AND POROSITY AND THEIR USES, IN PARTICULAR FOR THE STRENGTHENING OF POLYMERS

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731326A (en) * 1951-08-31 1956-01-17 Du Pont Process of preparing dense amorphous silica aggregates and product
FR2649089B1 (en) * 1989-07-03 1991-12-13 Rhone Poulenc Chimie CONTROLLED POROSITY SILICA AND PROCESS FOR OBTAINING SAME
FR2678259B1 (en) * 1991-06-26 1993-11-05 Rhone Poulenc Chimie NOVEL PRECIPITATED SILICA IN THE FORM OF GRANULES OR POWDERS, METHODS OF SYNTHESIS AND USE FOR REINFORCING ELASTOMERS.

Also Published As

Publication number Publication date
ZA948071B (en) 1995-06-06
TW307741B (en) 1997-06-11
MY115160A (en) 2003-04-30
FR2723581B1 (en) 1996-11-08
FR2723581A1 (en) 1996-02-16

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