GB1134118A - Colloidal compositions - Google Patents

Colloidal compositions

Info

Publication number
GB1134118A
GB1134118A GB2083366A GB2083366A GB1134118A GB 1134118 A GB1134118 A GB 1134118A GB 2083366 A GB2083366 A GB 2083366A GB 2083366 A GB2083366 A GB 2083366A GB 1134118 A GB1134118 A GB 1134118A
Authority
GB
United Kingdom
Prior art keywords
silica
weight
sol
solid
acidic oxide
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
Application number
GB2083366A
Inventor
David Grant
John Omri Wright
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.)
Monsanto Chemicals Ltd
Original Assignee
Monsanto Chemicals Ltd
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 Monsanto Chemicals Ltd filed Critical Monsanto Chemicals Ltd
Priority to GB2083366A priority Critical patent/GB1134118A/en
Priority to DE19671667176 priority patent/DE1667176A1/en
Priority to FR105877A priority patent/FR1522184A/en
Publication of GB1134118A publication Critical patent/GB1134118A/en
Expired 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
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/146—After-treatment of sols
    • C01B33/148—Concentration; Drying; Dehydration; Stabilisation; Purification
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/0004—Preparation of sols
    • B01J13/0039—Post treatment
    • 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
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/141—Preparation of hydrosols or aqueous dispersions
    • 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
    • C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
    • C01B33/145—Preparation of hydroorganosols, organosols or dispersions in an organic medium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Silicon Compounds (AREA)
  • Colloid Chemistry (AREA)

Abstract

1,134,118. Acidic oxide sols. MONSANTO CHEMICALS Ltd. 12 April, 1967 [11 May, 1966], No. 20833/66. Heading C1A. An aqueous, colloidal acidic oxide concentrate, containing more than 50% by weight of the acidic oxide is prepared by subjecting an initial aquasol to increased gravitational force in a centrifuge. The product may take the form of a " solid-sol " which is easily dispersible in water or a water miscible organic liquid, such as acetone. For example, a silica aquasol containing 20 to 50% by weight of silica having a weight average particle diameter of 1000 to 2000 Š may be centrifuged under a force of 40,000 to 45,000 g. for periods of up to 1 hr. to give a " solid sol " containing 55 to 75% silica by weight. Increasing the initial particle size or the period of centrifugation increases the proportion of the silica originally present which is recovered in the solid sol. Other acidic oxides whose sols may be similarly treated include those of Al, Cr, Ti, V, W and Ge.
GB2083366A 1966-05-11 1966-05-11 Colloidal compositions Expired GB1134118A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2083366A GB1134118A (en) 1966-05-11 1966-05-11 Colloidal compositions
DE19671667176 DE1667176A1 (en) 1966-05-11 1967-05-08 Process for the production of aqueous, colloidal preparations
FR105877A FR1522184A (en) 1966-05-11 1967-05-10 Acid oxide soils and their preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2083366A GB1134118A (en) 1966-05-11 1966-05-11 Colloidal compositions

Publications (1)

Publication Number Publication Date
GB1134118A true GB1134118A (en) 1968-11-20

Family

ID=10152475

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2083366A Expired GB1134118A (en) 1966-05-11 1966-05-11 Colloidal compositions

Country Status (2)

Country Link
DE (1) DE1667176A1 (en)
GB (1) GB1134118A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0372124A1 (en) * 1987-08-07 1990-06-13 Shin-Etsu Chemical Co., Ltd. A method for the preparation of a silica sol dispersed in an organic solvent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0372124A1 (en) * 1987-08-07 1990-06-13 Shin-Etsu Chemical Co., Ltd. A method for the preparation of a silica sol dispersed in an organic solvent

Also Published As

Publication number Publication date
DE1667176A1 (en) 1971-06-09

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