FR2222313A1 - Liquid phase prodn. of silica gel - suitable for use as filler in synthetic plastics - Google Patents

Liquid phase prodn. of silica gel - suitable for use as filler in synthetic plastics

Info

Publication number
FR2222313A1
FR2222313A1 FR7310199A FR7310199A FR2222313A1 FR 2222313 A1 FR2222313 A1 FR 2222313A1 FR 7310199 A FR7310199 A FR 7310199A FR 7310199 A FR7310199 A FR 7310199A FR 2222313 A1 FR2222313 A1 FR 2222313A1
Authority
FR
France
Prior art keywords
filler
sio2
silica gel
synthetic plastics
jet
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.)
Granted
Application number
FR7310199A
Other languages
French (fr)
Other versions
FR2222313B1 (en
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.)
Unilever NV
Original Assignee
Unilever NV
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 Unilever NV filed Critical Unilever NV
Priority to FR7310199A priority Critical patent/FR2222313A1/en
Publication of FR2222313A1 publication Critical patent/FR2222313A1/en
Application granted granted Critical
Publication of FR2222313B1 publication Critical patent/FR2222313B1/fr
Granted 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
    • 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
    • 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
    • C01P2004/51—Particles with a specific particle 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
    • C01P2004/61—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
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 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
    • C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Silicon Compounds (AREA)

Abstract

The new form of silica gel claimed has loss-on-ignition (between 120 and 1000 degrees) of >3%, and an 'activity value' such that a fraction having max. particle size in the range 10-20 mu m can be reduced to 3 mu m by ultrasonic energy of 6500 J in a jet-mill. It has the open-chain structure but is more easily broken down than is the pyrogenic SiO2 produced, e.g. by decompn. of SiCl4. The mfr. process involves reacting primary SiO2 particles with alkali metal silicate at a temp. between 85 degrees and the b.pt., partly neutralising with acid, adding an alkali metal salt, e.g. NaCl, separating and purifying the flocculent ppt. of SiO2, drying it, pref. in a spray-drier to minimise agglomeration and, opt., jet-milling. The prod. finds application as filler in silicone rubbers and other synthetic plastics, esp. polyester resins.
FR7310199A 1973-03-21 1973-03-21 Liquid phase prodn. of silica gel - suitable for use as filler in synthetic plastics Granted FR2222313A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7310199A FR2222313A1 (en) 1973-03-21 1973-03-21 Liquid phase prodn. of silica gel - suitable for use as filler in synthetic plastics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7310199A FR2222313A1 (en) 1973-03-21 1973-03-21 Liquid phase prodn. of silica gel - suitable for use as filler in synthetic plastics

Publications (2)

Publication Number Publication Date
FR2222313A1 true FR2222313A1 (en) 1974-10-18
FR2222313B1 FR2222313B1 (en) 1976-09-10

Family

ID=9116659

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7310199A Granted FR2222313A1 (en) 1973-03-21 1973-03-21 Liquid phase prodn. of silica gel - suitable for use as filler in synthetic plastics

Country Status (1)

Country Link
FR (1) FR2222313A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031288A2 (en) * 1979-12-20 1981-07-01 Rhone-Poulenc Chimie Organosilicon compositions containing precipitated silica with particular reinforcing properties

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031288A2 (en) * 1979-12-20 1981-07-01 Rhone-Poulenc Chimie Organosilicon compositions containing precipitated silica with particular reinforcing properties
EP0031288A3 (en) * 1979-12-20 1981-07-15 Rhone-Poulenc Specialites Chimiques Organosilicon compositions containing precipitated silica with particular reinforcing properties
FR2474517A1 (en) * 1979-12-20 1981-07-31 Rhone Poulenc Ind ORGANOSILIC COMPOSITIONS CONTAINING NEW PRECIPITATION SILICA WITH IMPROVED REINFORCING PROPERTIES

Also Published As

Publication number Publication date
FR2222313B1 (en) 1976-09-10

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Legal Events

Date Code Title Description
ST Notification of lapse