US1850286A - Process for making finely divided metal oxides - Google Patents

Process for making finely divided metal oxides Download PDF

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Publication number
US1850286A
US1850286A US136374A US13637426A US1850286A US 1850286 A US1850286 A US 1850286A US 136374 A US136374 A US 136374A US 13637426 A US13637426 A US 13637426A US 1850286 A US1850286 A US 1850286A
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United States
Prior art keywords
finely divided
metal oxides
divided metal
making finely
chlorid
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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 - Lifetime
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US136374A
Inventor
Mittasch Alwin
Lucas Richard
Griessbach Robert
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IG Farbenindustrie AG
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IG Farbenindustrie AG
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Publication date
Priority claimed from US31691A external-priority patent/US1816388A/en
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to US136374A priority Critical patent/US1850286A/en
Application granted granted Critical
Publication of US1850286A publication Critical patent/US1850286A/en
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Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • metallic element is intended to include metals such as iron, chromium, aluminium, titanium and others and also silicon which as an element has a metallic character.
  • oxids of metallic elements in a state of extremel finedivision can be obtained by burning a volatile halide of a metallic element or mixtures of several such halides in the presence of a volatilizable or gaseous combustible matter, which combustible matter may be. an inflammable gas or vapor and suitably mixed with the halide.
  • the powders obtained by the process here described are valuable for many purposes.
  • they may be used as a mineral pigment coloring matter, or as a polish, or as catalysts, or for the preparation of very finely divided metals, or the like.
  • he process according to this invention is applicable for example to ferric chlorid, chr
  • tatrachlorid titanium chlorid or mixtures of such compounds, which may be brought into a flame in a finely divided condition, into [,which flame, besides, nonvolatile powders may be introduced for shading the product.
  • purified coal gas is loaded with titanium chlorid vapors and ignited in the air.
  • Highly dispersed titanic oxid is r produced which, owing to its high specific volume, is carried along with the gas current and may be separated in a chamber provided with several floors consisting of or hearing filtering materials. The particles are here separated in accordance with their size While the gases of combustion leave the chamber.
  • the titantic oxid may be precipitated in dust chambers with the aid of high tension electric discharges, or in any other suitable manner.
  • the oxid is obtained in varying degrees of dis persion, whereby, in the case of for example iron oxid, different reddish shades can be obtained.
  • the process of producing finely divided titanic oxid which comprises burning tit-anium chlorid distributed in an atmosphere of oxidizing gas in a flame produced by purified coal gas.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Description

Patented Mar. 22, 1932 UNITED STATES PATENT OFFICE ALWIN MITTASCH AND RICHARD LUCAS, OF MANNHEIM, AND ROBERT GRIESSBACH,
OF LUDWIGSHAFEN-ON-THERHINE, GERMANY, ASSIGNORS TO I. G. FARBENIN- DUSTRIE AKTIENGESELLSCHAFT, OF FRANKFORT-ON-THE-MAIN, GERMANY, A COR PORATION OF GERMANY PROCESS FOR MAKING FINELY DIVIDED METAL OXIDES No Drawing. Original application filed May 20, 1925, Serial No. 31,691, and in Germany May 23, 1924. Divided and this application filed September 18, 1926. Serial No. 136,374.
The subject matter of this application has been divided out and transferred hereto from our copending application Ser. No. 31,691, filed May 20th, 1925.
-" It has been shown in the said patent application that oxids of metallic elements can be obtained in a state of extremely fine division by burning a volatilizable. carbonyl alone or together with a volatilizable halide of ametallic element in the presence of a vola-.
tilizable or gaseous combustible matter. The term metallic element is intended to include metals such as iron, chromium, aluminium, titanium and others and also silicon which as an element has a metallic character.
We have found that in a manner similar to the proce s described and claimed in our application Ser. No. 31,691 filed May 20th, 19:25, oxids of metallic elements in a state of extremel finedivision can be obtained by burning a volatile halide of a metallic element or mixtures of several such halides in the presence of a volatilizable or gaseous combustible matter, which combustible matter may be. an inflammable gas or vapor and suitably mixed with the halide.
The powders obtained by the process here described are valuable for many purposes. For example they may be used as a mineral pigment coloring matter, or as a polish, or as catalysts, or for the preparation of very finely divided metals, or the like.
he process according to this invention is applicable for example to ferric chlorid, chr
omyl chlorid, aluminium chlorid, sgicgn,
tatrachlorid, titanium chlorid or mixtures of such compounds, which may be brought into a flame in a finely divided condition, into [,which flame, besides, nonvolatile powders may be introduced for shading the product. For example, purified coal gas is loaded with titanium chlorid vapors and ignited in the air. Highly dispersed titanic oxid is r produced which, owing to its high specific volume, is carried along with the gas current and may be separated in a chamber provided with several floors consisting of or hearing filtering materials. The particles are here separated in accordance with their size While the gases of combustion leave the chamber. Or, the titantic oxid may be precipitated in dust chambers with the aid of high tension electric discharges, or in any other suitable manner. Depending on the temperature of the combustion and the duration of the stay of the oxid in the combustion chamber, the oxid is obtained in varying degrees of dis persion, whereby, in the case of for example iron oxid, different reddish shades can be obtained.
We claim:
1. The process of producing finely divided titanic oxid which comprises burning titanium chlorid distributed in an atmosphere of oxidizing gas in a flame produced by a gasitied combustible matter.
The process of producing finely divided titanic oxid which comprises burning tit-anium chlorid distributed in an atmosphere of oxidizing gas in a flame produced by purified coal gas.
In testimony whereof we have hereunto set our hands.
ALWIN MITTASCH. RICHARD LUCAS. ROBERT GRIESSBACH.
US136374A 1925-05-20 1926-09-18 Process for making finely divided metal oxides Expired - Lifetime US1850286A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US136374A US1850286A (en) 1925-05-20 1926-09-18 Process for making finely divided metal oxides

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31691A US1816388A (en) 1924-05-23 1925-05-20 Method of producing finely divided metal oxides
US136374A US1850286A (en) 1925-05-20 1926-09-18 Process for making finely divided metal oxides

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437171A (en) * 1943-11-10 1948-03-02 Pittsburgh Plate Glass Co Composite titanium dioxide-metal oxide pigment
US2488440A (en) * 1946-11-30 1949-11-15 Du Pont Titanium dioxide pigment production
US2642339A (en) * 1948-11-06 1953-06-16 Du Pont Process for oxidizing iron halides to produce iron oxide and chlorine
US2691571A (en) * 1952-09-25 1954-10-12 Du Pont Titanium dioxide manufacture
US2754176A (en) * 1956-07-10 Preparation of alumina by burning
DE947788C (en) * 1948-02-20 1956-09-13 Schweizerhall Saeurefab Process for the production of finely divided metal oxides by decomposing vaporizable metal chlorides
US2779662A (en) * 1948-02-20 1957-01-29 Thann Fab Prod Chem Process and apparatus for obtaining titanium dioxide with a high rutile content
US2801901A (en) * 1953-03-23 1957-08-06 Cabot Godfrey L Inc Process for making aluminum oxide from hydrated aluminum
US2819151A (en) * 1954-03-02 1958-01-07 Flemmert Gosta Lennart Process for burning silicon fluorides to form silica
US2823982A (en) * 1948-02-20 1958-02-18 Thann Fab Prod Chem Production of finely divided metal oxides
US2824784A (en) * 1956-09-07 1958-02-25 Robert S Hansen Method for the preparation of stable actinide metal oxide-containing slurries and of the oxides therefor
US2912342A (en) * 1955-06-27 1959-11-10 New Jersey Zinc Co Production of finely divided silicon dioxide
US2950955A (en) * 1956-12-31 1960-08-30 Degussa Process for the preparation of finely divided ferromagnetic ferric oxide
DE974793C (en) * 1952-04-02 1961-04-27 Degussa Process for the production of finely divided oxides
US3002808A (en) * 1957-08-07 1961-10-03 Westinghouse Electric Corp Preparation of ultrafine refractory oxide
US3117838A (en) * 1957-08-02 1964-01-14 Int Standard Electric Corp Manufacture of silica
US3130008A (en) * 1949-11-23 1964-04-21 Cabot Corp Method of preparing metallic oxides by hydrolysis of metallic halides
US3171719A (en) * 1963-04-16 1965-03-02 Robert M Mckinney Cyclic process for the production of titanium dioxide
US3350171A (en) * 1957-11-20 1967-10-31 British Titan Products Vapour phase oxidation

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754176A (en) * 1956-07-10 Preparation of alumina by burning
US2437171A (en) * 1943-11-10 1948-03-02 Pittsburgh Plate Glass Co Composite titanium dioxide-metal oxide pigment
US2488440A (en) * 1946-11-30 1949-11-15 Du Pont Titanium dioxide pigment production
DE947788C (en) * 1948-02-20 1956-09-13 Schweizerhall Saeurefab Process for the production of finely divided metal oxides by decomposing vaporizable metal chlorides
US2779662A (en) * 1948-02-20 1957-01-29 Thann Fab Prod Chem Process and apparatus for obtaining titanium dioxide with a high rutile content
US2823982A (en) * 1948-02-20 1958-02-18 Thann Fab Prod Chem Production of finely divided metal oxides
US2642339A (en) * 1948-11-06 1953-06-16 Du Pont Process for oxidizing iron halides to produce iron oxide and chlorine
US3130008A (en) * 1949-11-23 1964-04-21 Cabot Corp Method of preparing metallic oxides by hydrolysis of metallic halides
DE974793C (en) * 1952-04-02 1961-04-27 Degussa Process for the production of finely divided oxides
US2691571A (en) * 1952-09-25 1954-10-12 Du Pont Titanium dioxide manufacture
US2801901A (en) * 1953-03-23 1957-08-06 Cabot Godfrey L Inc Process for making aluminum oxide from hydrated aluminum
US2819151A (en) * 1954-03-02 1958-01-07 Flemmert Gosta Lennart Process for burning silicon fluorides to form silica
US2912342A (en) * 1955-06-27 1959-11-10 New Jersey Zinc Co Production of finely divided silicon dioxide
US2824784A (en) * 1956-09-07 1958-02-25 Robert S Hansen Method for the preparation of stable actinide metal oxide-containing slurries and of the oxides therefor
US2950955A (en) * 1956-12-31 1960-08-30 Degussa Process for the preparation of finely divided ferromagnetic ferric oxide
US3117838A (en) * 1957-08-02 1964-01-14 Int Standard Electric Corp Manufacture of silica
US3002808A (en) * 1957-08-07 1961-10-03 Westinghouse Electric Corp Preparation of ultrafine refractory oxide
US3350171A (en) * 1957-11-20 1967-10-31 British Titan Products Vapour phase oxidation
US3171719A (en) * 1963-04-16 1965-03-02 Robert M Mckinney Cyclic process for the production of titanium dioxide

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