GB1088924A - Production of titanium dioxide - Google Patents

Production of titanium dioxide

Info

Publication number
GB1088924A
GB1088924A GB2477265A GB2477265A GB1088924A GB 1088924 A GB1088924 A GB 1088924A GB 2477265 A GB2477265 A GB 2477265A GB 2477265 A GB2477265 A GB 2477265A GB 1088924 A GB1088924 A GB 1088924A
Authority
GB
United Kingdom
Prior art keywords
oxygen
titanium tetrachloride
working gas
plasma flame
reactor
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
GB2477265A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1088924A publication Critical patent/GB1088924A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/087—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
    • B01J19/088—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
    • 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
    • C01G23/07—Producing by vapour phase processes, e.g. halide oxidation
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0871—Heating or cooling of the reactor
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0894—Processes carried out in the presence of a plasma

Abstract

Titanium dioxide is produced by heating titanium tetrachloride to at least 300 DEG C. by a plasma flame generated by electrical energy and reacting the heated titanium tetrachloride with oxygen or free oxygen-containing gas. The plasma flame is generated by passing a working gas between electrodes or through a high frequency coil while an electrostatic, electro-magnetic or arc discharge ionizes from <PICT:1088924/C1/1> 0.01 to 1% of the gas during its passage there-through. The working gas comprises titanium tetrachloride, oxygen, carbon dioxide, carbon monoxide, chlorine, and/or inert gases. As shown in Fig. 1, the working gas is introduced at 4 into a reactor and passes through an arc struck through a water-cooled cathode 2 and an anode 3. Oxygen and titanium tetrachloride are admitted at 5 and 6 respectively whence they are heated by the plasma flame and react to form titanium dioxide. Additional oxygen or titanium tetrachloride is introduced at 7. As shown in Fig. 3, the plasma flame is generated <PICT:1088924/C1/2> in reactor 21 by passing the working gas 25 over the tip 28 of an electrode 24 connected to an electric oscillator 22. Titanium tetrachloride and oxygen are introduced at 26 and 27 respectively. In a third reactor the working gas is introduced tangentially into a silica tube and passed through a high frequency electromagnetic field provided by an induction coil surrounded by the tube (see Fig. 2, not shown).
GB2477265A 1964-06-26 1965-06-11 Production of titanium dioxide Expired GB1088924A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37840964A 1964-06-26 1964-06-26

Publications (1)

Publication Number Publication Date
GB1088924A true GB1088924A (en) 1967-10-25

Family

ID=23493033

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2477265A Expired GB1088924A (en) 1964-06-26 1965-06-11 Production of titanium dioxide

Country Status (1)

Country Link
GB (1) GB1088924A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2319941A (en) * 1996-11-28 1998-06-03 Aea Technology Plc Plasma gas processing
US6994837B2 (en) 2001-04-24 2006-02-07 Tekna Plasma Systems, Inc. Plasma synthesis of metal oxide nanopowder and apparatus therefor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2319941A (en) * 1996-11-28 1998-06-03 Aea Technology Plc Plasma gas processing
US6126779A (en) * 1996-11-28 2000-10-03 Aea Technology Plc Plasma gas processing
GB2319941B (en) * 1996-11-28 2000-11-29 Aea Technology Plc Plasma gas processing
US6994837B2 (en) 2001-04-24 2006-02-07 Tekna Plasma Systems, Inc. Plasma synthesis of metal oxide nanopowder and apparatus therefor
US7501599B2 (en) 2001-04-24 2009-03-10 Tekna Plasma Systems, Inc. Apparatus for plasma synthesis of metal oxide nanopowder

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