CA990170A - Process for preparing silica hydrogel - Google Patents

Process for preparing silica hydrogel

Info

Publication number
CA990170A
CA990170A CA163,378A CA163378A CA990170A CA 990170 A CA990170 A CA 990170A CA 163378 A CA163378 A CA 163378A CA 990170 A CA990170 A CA 990170A
Authority
CA
Canada
Prior art keywords
silica hydrogel
preparing silica
preparing
hydrogel
silica
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
CA163,378A
Other languages
English (en)
Other versions
CA163378S (en
Inventor
Carroll F. Doyle
Howard J. Sale
Alberto Delgado
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.)
WR Grace and Co
Original Assignee
WR Grace and 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 WR Grace and Co filed Critical WR Grace and Co
Application granted granted Critical
Publication of CA990170A publication Critical patent/CA990170A/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
    • C01B33/157—After-treatment of gels
    • C01B33/158—Purification; Drying; Dehydrating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)
CA163,378A 1972-04-06 1973-02-09 Process for preparing silica hydrogel Expired CA990170A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00241841A US3800031A (en) 1972-04-06 1972-04-06 Process for preparing silica hydrogel

Publications (1)

Publication Number Publication Date
CA990170A true CA990170A (en) 1976-06-01

Family

ID=22912396

Family Applications (1)

Application Number Title Priority Date Filing Date
CA163,378A Expired CA990170A (en) 1972-04-06 1973-02-09 Process for preparing silica hydrogel

Country Status (8)

Country Link
US (1) US3800031A (OSRAM)
JP (1) JPS499498A (OSRAM)
AU (1) AU5267073A (OSRAM)
CA (1) CA990170A (OSRAM)
DE (1) DE2309856A1 (OSRAM)
FR (1) FR2178870A1 (OSRAM)
GB (1) GB1359448A (OSRAM)
IT (1) IT979116B (OSRAM)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303641A (en) * 1978-05-24 1981-12-01 W. R. Grace & Co. Hydrous silica gel containing dentifrice
JPH0643246B2 (ja) * 1985-10-08 1994-06-08 川鉄鉱業株式会社 シリカの高純度化方法
US4847235A (en) * 1986-02-03 1989-07-11 Scm Glidco Organics Corp. Silica product
US5215733A (en) * 1986-04-25 1993-06-01 Unilever Patent Holdings B.V. Manufacture of silica gels using shear to reduce the particle size prior to washing with a hydrocyclone
US4767429A (en) * 1986-12-11 1988-08-30 American Telephone & Telegraph Co., At&T Bell Laboratories Glass body formed from a vapor-derived gel and process for producing same
US5614177A (en) * 1987-11-04 1997-03-25 Rhone-Poulenc Chimie Dentifrice-compatible silica particulates
FR2622565B1 (fr) * 1987-11-04 1990-11-09 Rhone Poulenc Chimie Silice pour compositions dentifrices compatible notamment avec le zinc
US5286478A (en) * 1987-11-04 1994-02-15 Rhone-Poulenc Chimie Dentifrice-compatible silica particulates
FR2632185B1 (fr) * 1988-06-01 1992-05-22 Rhone Poulenc Chimie Silice pour compositions dentifrices compatible notamment avec le zinc
FR2649089B1 (fr) * 1989-07-03 1991-12-13 Rhone Poulenc Chimie Silice a porosite controlee et son procede d'obtention
US5149553A (en) * 1989-10-12 1992-09-22 Pq Corporation Beer processing and composition
RU2092435C1 (ru) 1993-09-29 1997-10-10 Рон-Пуленк Шими Осажденный диоксид кремния и способ его получения
US6001322A (en) * 1993-09-29 1999-12-14 Rhone-Poulenc Chimie Precipitated silicas
FR2710630B1 (fr) * 1993-09-29 1995-12-29 Rhone Poulenc Chimie Nouvelles silices précipitées, leur procédé de préparation et leur utilisation au renforcement des élastomères.
US6258864B1 (en) 1999-01-20 2001-07-10 Cabot Corporation Polymer foam containing chemically modified carbonaceous filler
US6586501B1 (en) 1999-01-20 2003-07-01 Cabot Corporation Aggregates having attached polymer groups and polymer foams
US6555151B2 (en) * 2001-01-12 2003-04-29 Pq Corporation Process for making and using a low beverage soluble iron content adsorbent and composition made thereby

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA541212A (en) * 1957-05-21 B. Miller Ernest Silica gel and method of manufacturing the same
US2358201A (en) * 1940-08-28 1944-09-12 Infilco Inc Preparation of gels
US2424232A (en) * 1943-01-22 1947-07-22 Davison Chemical Corp Gel manufacturing apparatus
US2462236A (en) * 1945-07-30 1949-02-22 Universal Oil Prod Co Manufacture of silica hydrogel and catalysts
CH341802A (de) * 1955-02-03 1959-10-31 Basf Ag Verfahren zur kontinuierlichen Herstellung kieselsäurehaltiger Hydrogele
US3243262A (en) * 1963-02-18 1966-03-29 Grace W R & Co Process for preparing microspheroidal silica
US3453077A (en) * 1965-05-04 1969-07-01 Grace W R & Co Process for preparing microspheroidal silica
US3716493A (en) * 1971-02-26 1973-02-13 Grace W R & Co Process for making fine sized low density silica

Also Published As

Publication number Publication date
DE2309856A1 (de) 1973-10-18
IT979116B (it) 1974-09-30
GB1359448A (en) 1974-07-10
FR2178870A1 (OSRAM) 1973-11-16
US3800031A (en) 1974-03-26
JPS499498A (OSRAM) 1974-01-28
AU5267073A (en) 1974-08-29

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