YU298873A - Process for the conversion of hydrogel into xerogel - Google Patents

Process for the conversion of hydrogel into xerogel

Info

Publication number
YU298873A
YU298873A YU02988/73A YU298873A YU298873A YU 298873 A YU298873 A YU 298873A YU 02988/73 A YU02988/73 A YU 02988/73A YU 298873 A YU298873 A YU 298873A YU 298873 A YU298873 A YU 298873A
Authority
YU
Yugoslavia
Prior art keywords
xerogel
hydrogel
conversion
Prior art date
Application number
YU02988/73A
Other languages
English (en)
Inventor
R E Dietz
J A Delap
Original Assignee
Phillips Petroleum 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 Phillips Petroleum Co filed Critical Phillips Petroleum Co
Publication of YU298873A publication Critical patent/YU298873A/xx

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
    • C01B33/16—Preparation of silica xerogels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D12/00—Displacing liquid, e.g. from wet solids or from dispersions of liquids or from solids in liquids, by means of another liquid
    • 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
    • B01J13/0052—Preparation of gels
    • B01J13/0056—Preparation of gels containing inorganic material and water
    • 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
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/08—Silica
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Silicon Compounds (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
YU02988/73A 1972-11-29 1973-11-20 Process for the conversion of hydrogel into xerogel YU298873A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US310450A US3890249A (en) 1972-11-29 1972-11-29 Silica preparation

Publications (1)

Publication Number Publication Date
YU298873A true YU298873A (en) 1982-02-28

Family

ID=23202554

Family Applications (1)

Application Number Title Priority Date Filing Date
YU02988/73A YU298873A (en) 1972-11-29 1973-11-20 Process for the conversion of hydrogel into xerogel

Country Status (12)

Country Link
US (1) US3890249A (xx)
JP (1) JPS5343159B2 (xx)
BE (1) BE807902A (xx)
CA (1) CA1002418A (xx)
DE (1) DE2359582C3 (xx)
ES (1) ES420840A1 (xx)
FR (1) FR2252127B1 (xx)
GB (1) GB1431975A (xx)
IT (1) IT1002018B (xx)
SE (1) SE390530B (xx)
YU (1) YU298873A (xx)
ZA (1) ZA735131B (xx)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042769A (en) * 1975-03-12 1977-08-16 Gulf Research & Development Company Catalysts for the polymerization of ethylene
US4053436A (en) * 1975-08-26 1977-10-11 Phillips Petroleum Company Spray dried titanium-containing catalyst for stress crack resistant polymer
US4081407A (en) * 1976-03-18 1978-03-28 Phillips Petroleum Company Catalyst support prepared by alcohol treatment of hydrogels
US4169926A (en) * 1978-01-16 1979-10-02 Phillips Petroleum Company Inorganic hydrogels and uses thereof
US4247421A (en) * 1979-05-03 1981-01-27 Phillips Petroleum Company Activation of supported chromium oxide catalysts
US4436883A (en) 1982-01-20 1984-03-13 Phillips Petroleum Company Polymerization using a support formed by heating silica gel in inert atmosphere
US4717708A (en) * 1983-12-27 1988-01-05 Stauffer Chemical Company Inorganic oxide aerogels and their preparation
JPS59177831U (ja) * 1984-04-25 1984-11-28 三菱電機株式会社 磁性粒子式電磁連結装置
GB2188310A (en) * 1986-03-27 1987-09-30 Shell Int Research A process for the preparation of silica particles
GB2189780A (en) * 1986-04-22 1987-11-04 Shell Int Research A process for the preparation of alumina spheres
DE19538333A1 (de) * 1995-10-14 1997-04-17 Basf Ag Verfahren zur unterkritischen Herstellung von Aerogelen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1413457A (en) * 1917-11-12 1922-04-18 Du Pont Process of filtering
US2978298A (en) * 1956-09-04 1961-04-04 Gen Electric Process for producing hydrophobic aerogels
US3622521A (en) * 1967-08-21 1971-11-23 Phillips Petroleum Co Olefin polymerization with chromium and titanium-containing compounds
US3652214A (en) * 1968-08-06 1972-03-28 Nat Petro Chemicals Co Inc Preparation of silica gels
US3652215A (en) * 1968-08-06 1972-03-28 Nat Petro Chemicals Co Inc Preparation of silica gels
US3652216A (en) * 1968-10-11 1972-03-28 Nat Petro Chemicals Co Inc Preparation of silica gels

Also Published As

Publication number Publication date
IT1002018B (it) 1976-05-20
FR2252127A1 (xx) 1975-06-20
JPS5343159B2 (xx) 1978-11-17
FR2252127B1 (xx) 1978-09-08
JPS4983697A (xx) 1974-08-12
ES420840A1 (es) 1976-04-16
CA1002418A (en) 1976-12-28
SE390530B (sv) 1976-12-27
US3890249A (en) 1975-06-17
GB1431975A (en) 1976-04-14
ZA735131B (en) 1974-06-26
DE2359582B2 (xx) 1981-01-08
DE2359582C3 (de) 1981-11-05
BE807902A (fr) 1974-05-28
DE2359582A1 (de) 1974-06-20

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