GB908614A - Method of treating aqueous silica sols - Google Patents

Method of treating aqueous silica sols

Info

Publication number
GB908614A
GB908614A GB4191060A GB4191060A GB908614A GB 908614 A GB908614 A GB 908614A GB 4191060 A GB4191060 A GB 4191060A GB 4191060 A GB4191060 A GB 4191060A GB 908614 A GB908614 A GB 908614A
Authority
GB
United Kingdom
Prior art keywords
sols
resin
sol
acid
silica sols
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
GB4191060A
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.)
ChampionX LLC
Original Assignee
Nalco Chemical Co
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 Nalco Chemical Co filed Critical Nalco Chemical Co
Publication of GB908614A publication Critical patent/GB908614A/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
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • 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
    • 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
    • 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
    • C01B33/1485—Stabilisation, e.g. prevention of gelling; Purification

Abstract

Silica sols. having an SiO2 content of from e-50% are stabilized by passing the sol. through a strong acid cation exchange resin in the hydrogen form and a strong base anion exchange resin in the hydroxide form, the base resin being capable of salt splitting reactions. The resins may be used in series or as a mixed bed. The acid resin may be sulphonated styrene divinyl benzene and the base resin one containing a quaternary ammonium type of exchange group. The stable sol. obtained has a pH of from 2,7 to 4, an SiO2 content of 15-50%, a conductivity of 100-500 mmthos, a viscosity of 2-100 cps, and a sodium sulphate content of less than 0,001%. The pH may be subsequently adjusted to between 1 and 7 by caustic soda or sulphuric acid. The sols. may be converted to organo sols. by replacing a portion of the water in the silica sol. by an alcohol, ether or ketone. U.S.A. Specifications 1,132,394, 1,539,342, 2,244,325, 2,366,007, 2,574,902, 2,577,484, 2,591,573 and 2,750,345 are referred to.
GB4191060A 1960-01-05 1960-12-06 Method of treating aqueous silica sols Expired GB908614A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60160A 1960-01-05 1960-01-05

Publications (1)

Publication Number Publication Date
GB908614A true GB908614A (en) 1962-10-24

Family

ID=21692209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4191060A Expired GB908614A (en) 1960-01-05 1960-12-06 Method of treating aqueous silica sols

Country Status (3)

Country Link
DE (1) DE1244745B (en)
FR (1) FR1284088A (en)
GB (1) GB908614A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0812803A1 (en) * 1996-06-10 1997-12-17 Bayer Ag Preparation of silica sol dispersions in low boiling points alcohols,with a low salt content

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2155045B2 (en) * 1971-11-05 1976-05-06 Sebestian, Imrich, Dr., 6000 Frankfurt; Halasz, Istvan, Prof. Dr., 6600 Saarbrücken PROCESS FOR THE PRODUCTION OF SPHERICAL POROES SIO DEEP 2-PARTICLES
US5069942A (en) * 1990-04-30 1991-12-03 E. I. Du Pont De Nemours And Company Process for improving adhesion of polysiloxane coatings to polymeric substrates via reduced alkali metal cation content

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA521741A (en) * 1956-02-14 E.I. Du Pont De Nemours And Company Process for the production of silica sols
DE1072603B (en) * 1960-01-07 Monsanto Chemical1 Company, St. Louis, Mo. (V.St.A.) Process for the production of acidic silicic acid hydroorganosols with an extremely low salt content
DE815643C (en) * 1949-06-25 1951-10-04 Bayer Ag Process for removing heavy metals, especially iron, from silica sol

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0812803A1 (en) * 1996-06-10 1997-12-17 Bayer Ag Preparation of silica sol dispersions in low boiling points alcohols,with a low salt content
US5885485A (en) * 1996-06-10 1999-03-23 Bayer Aktiengesellschaft Process for producing low-salt silica sol dispersions in low-boiling alcohols

Also Published As

Publication number Publication date
DE1244745B (en) 1967-07-20
FR1284088A (en) 1962-02-09

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