GB1412937A - Titanium dioxide gels and sols - Google Patents

Titanium dioxide gels and sols

Info

Publication number
GB1412937A
GB1412937A GB4930471A GB4930471A GB1412937A GB 1412937 A GB1412937 A GB 1412937A GB 4930471 A GB4930471 A GB 4930471A GB 4930471 A GB4930471 A GB 4930471A GB 1412937 A GB1412937 A GB 1412937A
Authority
GB
United Kingdom
Prior art keywords
gel
redispersed
sol
titanium
solvent
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
GB4930471A
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB4930471A priority Critical patent/GB1412937A/en
Priority to FR7237378A priority patent/FR2194651B3/fr
Priority to IT7032272A priority patent/IT975328B/en
Priority to JP47106136A priority patent/JPS49108000A/ja
Priority to DE19722251925 priority patent/DE2251925C2/en
Priority to FR7316378A priority patent/FR2192070B3/fr
Publication of GB1412937A publication Critical patent/GB1412937A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C01G23/047—Titanium dioxide
    • 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
    • B01J13/0008—Sols of inorganic materials in water
    • B01J13/0013—Sols of inorganic materials in water from a precipitate
    • 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
    • B01J13/0008—Sols of inorganic materials in water
    • B01J13/0017—Sols of inorganic materials in water by extraction of ions from aqueous solutions
    • 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
    • B01J13/0047—Preparation of sols containing a metal oxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G23/00—Compounds of titanium
    • C01G23/04—Oxides; Hydroxides
    • C01G23/047—Titanium dioxide
    • C01G23/08—Drying; Calcining ; After treatment of titanium oxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/77—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by unit-cell parameters, atom positions or structure diagrams
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/38—Particle morphology extending in three dimensions cube-like
    • 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
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/10—Solid density

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

1412937 Titanium dioxide gels; titanium carbide; lead zirconate titanate UNITED KINGDOM ATOMIC ENERGY AUTHORITY 13 Oct 1972 [22 Oct 1971] 49304/71 Headings C1A C1J and C1N An aqueous titanium (IV) gel is disclosed which has a H+/Ti molar ratio of at least 0À01, preferably at least 0À02, and which is dispersable in water to give a stable sol. at 3À5 M Ti concentration. The gel may be made by washing Ti(OH) 4 until the wash water has pH # 7 and specific conductivity of # 10<SP>4</SP> Ámhos, adding acid to bring pH to < 2À8, but preferably > 1À0, holding the slurry until sol. formation occurs and then removing water therefrom to form the gel. Alternately, an aqueous solution of a Ti salt, e.g. TiCl 4 may be contacted with a substance which removes anions so as to reduce the anion/Ti (IV) ratio to < 1 and then removing water from the resultant sol. The anion exchanger may be solid or liquid, e.g. a solution of a long chain aliphatic amine in 1,1,1-trichloroethane. The sols may be converted to the gel by evaporation, spray drying or dehydration in a lyophelic solvent, e.g. 2-ethylhexanol. The gel when redispersed forms a stable sol. which may be re-gelled into spherical particls of 4-2500 Á in size by dehydration in lyophilic solvent or chemical gelation. The gel particles may be calcined at 800-1000‹ C. to form TiO 2 spheres. Cubic TiC may be made by mixing the redispersed gel with finely divided C and a wetting agent, e.g. polyvinyl alcohol, dehydrating the mixture and calcining, e.g. at 900-1500‹ C. in a fluidized bed. Pb 0À9 La 0À1 Zr 0À634 Ti 0À341 O 3À0 is produced in Example 8 by mixing the redispersed gel with a solution containing Pb(NO 3 ) 2 , La(NO 3 ) 3 . 6H 2 O and ZrO 2 and adding to 1,1,1-trichloroethane solvent containing a surfactant. The gelled particles were filtered off, dried and calcined at 1260‹ C. Lead titanium zirconate may be made similarly.
GB4930471A 1971-10-22 1971-10-22 Titanium dioxide gels and sols Expired GB1412937A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB4930471A GB1412937A (en) 1971-10-22 1971-10-22 Titanium dioxide gels and sols
FR7237378A FR2194651B3 (en) 1971-10-22 1972-10-20
IT7032272A IT975328B (en) 1971-10-22 1972-10-20 AQUEOUS SOL CONTAINING TITANIUM AND PROCEDURE FOR ITS PREPARATION AND USE
JP47106136A JPS49108000A (en) 1971-10-22 1972-10-23
DE19722251925 DE2251925C2 (en) 1971-10-22 1972-10-23 Hydrous titanium (IV) oxide gel and its uses
FR7316378A FR2192070B3 (en) 1971-10-22 1973-05-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4930471A GB1412937A (en) 1971-10-22 1971-10-22 Titanium dioxide gels and sols

Publications (1)

Publication Number Publication Date
GB1412937A true GB1412937A (en) 1975-11-05

Family

ID=10451891

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4930471A Expired GB1412937A (en) 1971-10-22 1971-10-22 Titanium dioxide gels and sols

Country Status (5)

Country Link
JP (1) JPS49108000A (en)
DE (1) DE2251925C2 (en)
FR (2) FR2194651B3 (en)
GB (1) GB1412937A (en)
IT (1) IT975328B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0184900A1 (en) * 1984-11-01 1986-06-18 United Kingdom Atomic Energy Authority Process for the preparation of synthetic rock material and precursor therefor
US6235401B1 (en) * 1996-08-06 2001-05-22 Tao Inc. Method for coating amorphous titanium peroxide
US7351294B2 (en) 1999-12-22 2008-04-01 Reckitt Benckiser (Uk) Limited Surface cleaner
US7368183B2 (en) * 1996-08-30 2008-05-06 Showa Denko K.K. Particles, aqueous dispersion and film of titanium oxide, and preparation thereof
US10116328B2 (en) 2015-06-10 2018-10-30 Gurulogic Microsystems Oy Encoders, decoders and methods utilizing mode symbols

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3777931D1 (en) * 1986-09-22 1992-05-07 Ishihara Sangyo Kaisha TITANIUM DIOXYDSOL AND METHOD FOR THE PRODUCTION THEREOF.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0184900A1 (en) * 1984-11-01 1986-06-18 United Kingdom Atomic Energy Authority Process for the preparation of synthetic rock material and precursor therefor
US6235401B1 (en) * 1996-08-06 2001-05-22 Tao Inc. Method for coating amorphous titanium peroxide
US6344278B1 (en) * 1996-08-06 2002-02-05 Tao Inc. Coating method of amorphous type titanium peroxide
US6344277B1 (en) * 1996-08-06 2002-02-05 Tao Inc. Coating method of amorphous type titanium peroxide
US7368183B2 (en) * 1996-08-30 2008-05-06 Showa Denko K.K. Particles, aqueous dispersion and film of titanium oxide, and preparation thereof
US7351294B2 (en) 1999-12-22 2008-04-01 Reckitt Benckiser (Uk) Limited Surface cleaner
US10116328B2 (en) 2015-06-10 2018-10-30 Gurulogic Microsystems Oy Encoders, decoders and methods utilizing mode symbols

Also Published As

Publication number Publication date
DE2251925A1 (en) 1973-04-26
FR2194651B3 (en) 1975-11-28
FR2192070A1 (en) 1974-02-08
IT975328B (en) 1974-07-20
DE2251925C2 (en) 1985-07-25
JPS49108000A (en) 1974-10-14
FR2194651A1 (en) 1974-03-01
FR2192070B3 (en) 1977-09-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee