DE1287236B - Mixed crystals of titanium dioxide - Google Patents

Mixed crystals of titanium dioxide

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Publication number
DE1287236B
DE1287236B DE1957F0024419 DEF0024419A DE1287236B DE 1287236 B DE1287236 B DE 1287236B DE 1957F0024419 DE1957F0024419 DE 1957F0024419 DE F0024419 A DEF0024419 A DE F0024419A DE 1287236 B DE1287236 B DE 1287236B
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Germany
Prior art keywords
converted
iii
anatase
rutile
oxide
Prior art date
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Pending
Application number
DE1957F0024419
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German (de)
Inventor
Dr Franz
Hund
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Bayer AG
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Bayer AG
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Priority to DE1957F0024419 priority Critical patent/DE1287236B/en
Priority to GB3679858A priority patent/GB877734A/en
Publication of DE1287236B publication Critical patent/DE1287236B/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/0081—Composite particulate pigments or fillers, i.e. containing at least two solid phases, except those consisting of coated particles of one compound
    • C09C1/0084—Composite particulate pigments or fillers, i.e. containing at least two solid phases, except those consisting of coated particles of one compound containing titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • 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
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values

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  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Compounds Of Iron (AREA)

Description

1 ' 21 '2

Es ist bekannt, Titandioxid, insbesondere Anatas stoffe einiger typischer Vertreter der erfindungssowie Hydroxidformen des vierwertigen Titans, unter - gemäßen Mischkristalle angegeben.
Zusatz der verschiedensten Metalloxide oder -salze Die genannten Bestandteile werden gut gemischt,It is known that titanium dioxide, in particular anatase substances of some typical representatives of the hydroxide forms of tetravalent titanium according to the invention and hydroxide forms, are given under mixed crystals.
Addition of various metal oxides or salts The components mentioned are mixed well,

zu erhitzen, teils, um den Übergang von Anataszu x/2 Stunde bei 8000C5 nach dem Pulverisieren 1Za Stunde Rutil zu begünstigen,, teils, um die Pigmenteigen- 5 bei 10000C geglüht,
schäften des weißen Titandioxids zu verbessern, teils, . -I1 to heat, partly to favor the transition from anatase to x / 2 hours at 800 0 C 5 after pulverization 1 Za hour rutile, partly to anneal the pigments at 1000 0 C,
shanks of white titanium dioxide, partly,. -I 1

um farbige Pigmente herzustellen. So wurden den Beispielto make colored pigments. So were the example

Titan(IV)-verbindungen beim Calcinieren z. B. schon 5,000 g Anatas + 0,020 g Li2O (aus Li2CO3 umge-Titanium (IV) compounds in calcining e.g. B. already 5.000 g anatase + 0.020 g Li 2 O (converted from Li 2 CO 3

Oxide oder Salze von Lithium, Natrium, Kalium, rechnet) + 0,466 g WO3 (aus H2WO4 umgerechnet). Kupfer, Beryllium, Magnesium, Calcium, Strontium, io Man erhält ein weißes bis hellgraues Pigment, das nach Barium, Zink, Bor, Aluminium, Cer, Titan(III), der Röntgenanalyse Rutilstruktur hat.
Antimon(III), Vanadin(III), Chrom(III), Man- ' ■ ■' .Oxides or salts of lithium, sodium, potassium, calculated) + 0.466 g WO 3 (converted from H 2 WO 4 ). Copper, beryllium, magnesium, calcium, strontium, io A white to light gray pigment is obtained which, according to barium, zinc, boron, aluminum, cerium, titanium (III), has a rutile structure according to X-ray analysis.
Antimony (III), Vanadium (III), Chromium (III), Man- '■ ■'.

gan(III), Rhodium(III), Silicium, Zirkon, Anti- Beispiel 2gan (III), rhodium (III), silicon, zircon, anti-example 2

mon(V), Vanadin(V), Chrom(VI), Wolfram(VI), 5,000 g Anatas + 0,050 g MgO (aus MgCO3 umge-mon (V), vanadium (V), chromium (VI), tungsten (VI), 5,000 g anatase + 0.050 g MgO (converted from MgCO 3

Uran(VI), ManganjVII), Kobalt, Nickel und Eisen 15 rechnet) + 0,288 g WO3 (aus H2WO4 umgerechnet), in kleineren oder größeren Mengen, einzeln oder Man erhält ein weißes bis grünlichgrauweißes Pigment, als Gemische zweier öder mehrerer solcher Verbin- das nach der Röntgenanalyse Rutilstruktur hat.
düngen, zugesetzt. . -13Uranium (VI), ManganjVII), cobalt, nickel and iron 15 calculated) + 0.288 g WO 3 (converted from H 2 WO 4 ), in smaller or larger amounts, individually or a white to greenish gray-white pigment is obtained as a mixture of two bleak several such compounds have a rutile structure according to X-ray analysis.
fertilize, added. . -13

Mit Ausnahme der Fälle, wo solche Zusätze der B e 1 s ρ 1 e 1 3With the exception of cases where such additions of B e 1 s ρ 1 e 1 3

Erleichterung der Rutilbildung dienen und wobei es 20 5,000 g Anatas + 0,200 g ZnO (aus ZnCO3 umgesich um nur ganz geringe Zuschläge farbloser Korn- rechnet) + 0,570 g WO3 (aus H2WO4 umgerechnet), ponenten handelt, ergeben aber alle bisher bekannten Man erhält ein gelblichweißes Pigment von der Kristall-Verfahren, die bezüglich solcher Zusätze sowohl in struktur des Rutils. qualitativer wie in quantitativer Hinsicht recht willkür- Beispiel 4Serve to facilitate the rutile formation and where there are 20 5,000 g anatase + 0.200 g ZnO (from ZnCO 3 around only very small additions of colorless grain calculated) + 0.570 g WO 3 (converted from H 2 WO 4 ), but all components are hitherto known one receives a yellowish white pigment from the crystal process, which with regard to such additives both in the structure of the rutile. both qualitatively and quantitatively quite arbitrary - Example 4

lieh vorgehen, kristallographisch mehr oder weniger 25
undefinierbare Produkte. 5,000 g Anatas + 0,200 g Al2O3 (aus aktivem AIu-borrowed procedure, crystallographically more or less 25
indefinable products. 5,000 g anatase + 0.200 g Al 2 O 3 (from active AIu-

Es wurde nun gefunden, daß echte Mischkristalle aus miniumoxidhydrat umgerechnet) + 0,455 g WO3 (aus Titandioxid mit einem Gehalt an Wolframoxid oder H2WO4 umgerechnet). Man erhält ein grauweißes Mischungen von Wolframoxid und Antimonoxid, Wis- Pigment von Rutilstruktur.
mutoxid, Vanadinpentoxid, Molybdänoxid oder/und 30 .It has now been found that real mixed crystals (converted from hydrate of minium oxide) + 0.455 g of WO 3 (converted from titanium dioxide with a content of tungsten oxide or H 2 WO 4 ). A gray-white mixture of tungsten oxide and antimony oxide, a Wis pigment of rutile structure, is obtained.
mutoxide, vanadium pentoxide, molybdenum oxide and / or 30.

Uranoxid und Oxiden von Lithium, Magnesium, Zink, BeispielUranium oxide and oxides of lithium, magnesium, zinc, for example

Mangan(II), Eisen(II), Kobalt(II), Nickel (II), Kup- 5,000 g Anatas + 0,200 g MnO (aus MnCO3 umge-Manganese (II), iron (II), cobalt (II), nickel (II), copper 5,000 g anatase + 0.200 g MnO (converted from MnCO 3

fer(II), Aluminium, Gallium, Titan(III), Chrom(III), . rechnet) + 0,654 g WO3 (aus H2WO4 umgerechnet). Mangan(III) und Eisen(III) oder Mischungen solcher Man erhält ein dunkelrotbraunes Pigment, das nach Oxide entstehen, wenn sich die Mengen der 6- oder/und 35 der Röntgenanalyse Rutilstruktur hat.
5wertigen Kationen und der 1-, 2- oder 3wertigen . .fer (II), aluminum, gallium, titanium (III), chromium (III),. calculated) + 0.654 g WO 3 (converted from H 2 WO 4 ). Manganese (III) and iron (III) or mixtures of these. A dark red-brown pigment is obtained which, after oxides, is formed when the quantities of 6 or / and 35 of the X-ray analysis have a rutile structure.
5-valent cations and the 1-, 2- or 3-valent cations. .

Kationen relativ so zueinander verhalten, daß sich für B e ι s ρ 1 e 1 6Cations behave relative to one another in such a way that for B e ι s ρ 1 e 1 6

diese eine mittlere statistische Wertigkeit von +4 5,000 g Anatas + 0,500 g FeO (aus FeCO3 umge-this has a mean statistical value of +4 5,000 g anatase + 0.500 g FeO (converted from FeCO 3

ergibt. Die Herstellung der Mischkristalle erfolgt rechnet) + 1,615 g WO3 (aus H2WO4 umgerechnet), durch Erhitzen von Gemengen feinteiligen Titan- 40 Man erhält ein olivgrünes Pigment, das nach der dioxids in Form von Anatas oder Rutil oder in Form Röntgenuntersuchung Rutilstruktur hat.
des Titanoxidhydratschlammes, wie er bei der üblichen . ...results. The mixed crystals are produced by calculating + 1.615 g of WO 3 (converted from H 2 WO 4 ), by heating mixtures of finely divided titanium Has.
of the titanium oxide hydrate sludge, as is the case with the usual. ...

Hydrolyse der aus Ilmenit gewonnenen Titansalze BeispielHydrolysis of the titanium salts obtained from ilmenite Example

gewonnen wird, mit den genannten Oxiden oder zu 5,000 g Anatas + 0,200 g CoO (aus CoCO3 umge-is obtained, with the oxides mentioned or to 5,000 g anatase + 0.200 g CoO (converted from CoCO 3

solchen Oxiden zerfallenden Salzen auf Temperaturen 45 rechnet) + 0,620 g WO3 (aus H2WO4 umgerechnet).such oxides decomposing salts at temperatures 45 calculated) + 0.620 g WO 3 (converted from H 2 WO 4 ).

zwischen etwa 800 und 12000C und Mahlen des Reak- Man erhält ein rötlichhellbraunes Pigment, das Rutiltionsgutes und gegebenenfalls nochmaliges Erhitzen struktur hat.between about 800 and 1200 0 C and grinding of the reaction, giving a reddish light brown pigment Rutiltionsgutes and optionally reheating structure.

und Mahlen desselben. Sie besitzen technisch wertvolle Beisüiel 8and grinding it. You have technically valuable example 8

Eigenschaften, so insbesondere als Pigmente der ver-Properties, especially as pigments of the

schiedensten Farben zwischen Weiß und Blauschwarz. 50 5,000 g Anatas + 0,200 g NiO (aus NiCO3 umge-Einige dieser neuen Mischkristalle können auch als rechnet) + 0,620 g WO3 (aus H2WO4 umgerechnet).various colors between white and blue-black. 50 5,000 g anatase + 0.200 g NiO (converted from NiCO 3 - some of these new mixed crystals can also be calculated as) + 0.620 g WO 3 (converted from H 2 WO 4 ).

Katalysatoren, insbesondere für Oxydationsreaktionen, Man erhält ein schönes, voll kanariengelbes PigmentCatalysts, especially for oxidation reactions. A beautiful, fully canary-yellow pigment is obtained

verwendet werden. Viele sind auch als Halbleiter für von Rutilstruktur. .......be used. Many are also used as semiconductors for of rutile structure. .......

elektronische Zwecke von Interesse. Beist>iel9electronic purposes of interest. Join> iel9

Der Titanoxidgehalt dieser neuen Mischkristalle 55The titanium oxide content of these new mixed crystals 55

beträgt in der Regel mindestens etwa 50 %, häufig 5,000 g Anatas + 0,100 g NiO (aus NiCO3 umge-is usually at least about 50%, often 5,000 g anatase + 0.100 g NiO (converted from NiCO 3

etwa 70 bis 95°/0. rechnet) + 0,310 g WO3 (aus H2WO4 umgerechnet)about 70 to 95 ° / 0 . calculated) + 0.310 g WO 3 (converted from H 2 WO 4 )

Die Bildung der Mischkristalle kann in vielen Fällen + 0,050 g NaF. Man erhält ein volles, reines, leuchdurch Zugabe geringer Mengen von Umwandlungs- tendes, kanariengelbes Pigment von Rutilstruktur.
beschleunigern, so z. B. von Natrium- oder Lithium- 60The formation of mixed crystals can in many cases + 0.050 g NaF. A full, pure, canary-yellow pigment with a rutile structure is obtained by adding small amounts of converting tends.
accelerate, e.g. B. of sodium or lithium 60

fluorid, zu den Gemengen vor ihrer thermischen Be- Beispiel 10fluoride, to the batches before their thermal loading

handlung erleichtert werden, wodurch gegebenenfalls 5,000 g Anatas + 0,100 g CuO (aus CuCO3 umge-handling can be facilitated, whereby 5.000 g anatase + 0.100 g CuO (converted from CuCO 3 )

die Glühtemperatur oder/und die Glühzeit vermindert rechnet) + 0,290 g WO3 (aus H2WO4 umgerechnet), werden kann. An Stelle der Oxide der Metalle können Man erhält ein lindgrünes Pigment mit Rutilgitter,
als Ausgangsstoffe auch deren Carbonate oder Hydrate 65 _ .calculates the annealing temperature and / or the annealing time reduced) + 0.290 g WO 3 (converted from H 2 WO 4 ). Instead of the oxides of the metals, a lime green pigment with a rutile lattice is obtained,
as starting materials, their carbonates or hydrates 65 _.

verwendet werden, die beim Glühen in die Oxide Beispiel 11used in the annealing in the oxides Example 11

übergehen. 5,000 g Anatas + 0,200 g Cr3O3 + 0,306 g WO3 pass over. 5.000 g anatase + 0.200 g Cr 3 O 3 + 0.306 g WO 3

In den nachfolgenden Beispielen sind die Ausgangs- (aus H2WO4 umgerechnet). Man erhält ein braun-In the following examples the starting (converted from H 2 WO 4 ). You get a brown

oranges Pigment, das nach der Röntgenanalyse Rutilstruktur besitzt.orange pigment that has a rutile structure according to X-ray analysis.

Beispiel 12Example 12

5,000 g Anatas + 0,500 g Fe2O3 + 0,726 g WO3 (aus H2WO4 umgerechnet). Man erhält ein gelblichlindgrünes Pigment mit Rutilgitter. 5.000 g anatase + 0.500 g Fe 2 O 3 + 0.726 g WO 3 (converted from H 2 WO 4 ). A yellowish lime green pigment with a rutile lattice is obtained.

Beispiel 13Example 13

5,000 g Anatas + 0,200 g NiO (aus NiCO3 umgerechnet) + 0,347 g Sb2O5 + 0,372 WO3 (aus H2WO4 umgerechnet) + 0,200 g NaF. Man erhält ein kanariengelbes Pigment mit der Kristallstruktur des Rutils.5.000 g anatase + 0.200 g NiO (converted from NiCO 3 ) + 0.347 g Sb 2 O 5 + 0.372 WO 3 (converted from H 2 WO 4 ) + 0.200 g NaF. A canary-yellow pigment with the crystal structure of rutile is obtained.

Beispiel 14Example 14

5,000 g Anatas + 0,200 g CuO (aus CuCO3 umgerechnet) + 0,183 g V2O5 (aus NH4VO3 umgerechnet) + 0,350 g WO3 (aus H2WO4 umgerechnet). Man erhält ein mittelbraunes Pigment mit der Gitterstruktur des Rutils.5.000 g anatase + 0.200 g CuO (converted from CuCO 3 ) + 0.183 g V 2 O 5 (converted from NH 4 VO 3 ) + 0.350 g WO 3 (converted from H 2 WO 4 ). A medium brown pigment with the lattice structure of rutile is obtained.

Beispiel 15Example 15

5,000 g Anatas + 0,050 g CuO (aus CuCO3 umgerechnet) + 0,050 g NiO (aus NiCO3 umgerechnet) + 0,30Og WO3 (aus H2WO4 umgerechnet). Man erhält ein gelbes lindgrünes Pigment mit der Kristallstruktur des Rutils.5.000 g anatase + 0.050 g CuO (converted from CuCO 3 ) + 0.050 g NiO (converted from NiCO 3 ) + 0.30Og WO 3 (converted from H 2 WO 4 ). A yellow, lime green pigment with the crystal structure of rutile is obtained.

Beispiel 16Example 16

5,000 g Anatas + 0,100 g CoO (aus CoCO3 umgerechnet) + 0,100 g NiO (aus NiCO3 umgerechnet) + 0,62Og WO3 (aus H2WO4 umgerechnet). Man erhält ein organgebraunes Pigment mit der Struktur des Rutils.5.000 g 0.100 g anatase + CoO (from CoCO 3 equivalents) + 0.100 g NiO (from NiCO 3 equivalents) + 0,62Og WO 3 (of H 2 WO 4 converted). An orange-brown pigment with the structure of rutile is obtained.

Beispiel 17Example 17

5,000 g Anatas + 0,100 g NiO (aus NiCO3 umgerechnet) + 0,100 g Cr2O3 + 0,463 g WO3 (aus H2WO4 umgerechnet). Man erhält ein braunstichig oranges Pigment mit Rutilstruktur.5.000 g anatase + 0.100 g NiO (converted from NiCO 3 ) + 0.100 g Cr 2 O 3 + 0.463 g WO 3 (converted from H 2 WO 4 ). A brownish-tinged orange pigment with a rutile structure is obtained.

Beispiel 18Example 18

5,000 g Anatas + 0,100 g NiO (aus NiCO3 umgerechnet) + 0,100 g CuO (aus CuCO3 umgerechnet) + 433 g Sb2O5 + 0,290 g WO3 (aus H2WO4 umgerechnet). Man erhält ein lindgrünes Pigment, das nach der Röntgenanalyse Rutilstruktur hat.5.000 g anatase + 0.100 g NiO (converted from NiCO 3 ) + 0.100 g CuO (converted from CuCO 3 ) + 433 g Sb 2 O 5 + 0.290 g WO 3 (converted from H 2 WO 4 ). A lime green pigment is obtained which, according to X-ray analysis, has a rutile structure.

Beispiel 19Example 19

ίο 5,000 g Anatas + 0,500 g NiO (aus NiCO3 umgerechnet) + 1,163 g WO3 (aus H2WO4 umgerechnet) + 0,479 g UO3 (umgerechnet aus Uranylnitrat). Man erhält ein grüngelbes Pigment mit der Kristallstruktur des Rutils.ίο 5,000 g anatase + 0.500 g NiO (converted from NiCO 3 ) + 1.163 g WO 3 (converted from H 2 WO 4 ) + 0.479 g UO 3 (converted from uranyl nitrate). A green-yellow pigment with the crystal structure of rutile is obtained.

Beispiel 20Example 20

5,000 g TiO2 (durch Glühverlust aus Titanoxidhydrat umgerechnet) + 0,500 g NiO (aus NiCO3 umgerechnet) + 0,775 g WO3 (aus H2WO4 umgerechnet) + 0,482 g MoO3 + 0,200 g NaF werden gut gemischt, 1J2 Stunde bei 600° C und nach weiterem Pulverisieren 1I2 Stunde bei 800° C geglüht. Man erhält ein beigebraunes Pigment, das nach der Röntgenuntersuchung Rutilstruktur hat.5,000 g TiO 2 (converted from loss on ignition from titanium oxide hydrate) + 0.500 g NiO (converted from NiCO 3 ) + 0.775 g WO 3 (converted from H 2 WO 4 ) + 0.482 g MoO 3 + 0.200 g NaF are mixed well, 1 J 2 Annealed hour at 600 ° C and after further pulverization for 1 l for 2 hours at 800 ° C. A beige-brown pigment is obtained which, according to the X-ray examination, has a rutile structure.

Claims (1)

Patentanspruch:Claim: Mischkristalle aus Titandioxid mit einem Gehalt an Wolframtrioxid oder Gemischen von Wolframtrioxid und Antimonoxid, Wismutoxid, Vanadinpentoxid, Molybdänoxid oder/und Uranoxid und Oxiden von Lithium, Magnesium, Zink, Mangang), Eisen(II), Kobalt(II), Nickel(II), Kupfer(II), Aluminium, Gallium, Titan(III), Chrom(III), Mangan(III) und Eisen(III) oder Mischungen solcher Oxide, wobei sich die Mengen der 6- oder/und 5wertigen Kationen und der 1-, 2- oder/und 3wertigen Kationen relativ zueinander so verhalten, daß sich für diese eine mittlere statistische Wertigkeit von +4 ergibt.Mixed crystals of titanium dioxide with a content of tungsten trioxide or mixtures of tungsten trioxide and antimony oxide, bismuth oxide, vanadium pentoxide, molybdenum oxide and / or uranium oxide and Oxides of lithium, magnesium, zinc, manganese), iron (II), cobalt (II), nickel (II), copper (II), Aluminum, gallium, titanium (III), chromium (III), manganese (III) and iron (III) or mixtures of these Oxides, the amounts of the 6 or / and 5-valent cations and the 1-, 2- or / and Trivalent cations behave relative to one another in such a way that they have a mean statistical value of +4 results.
DE1957F0024419 1957-11-16 1957-11-16 Mixed crystals of titanium dioxide Pending DE1287236B (en)

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DE1957F0024419 DE1287236B (en) 1957-11-16 1957-11-16 Mixed crystals of titanium dioxide
GB3679858A GB877734A (en) 1957-11-16 1958-11-14 Crystalline solid solutions based upon titanium dioxide

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1078956A1 (en) * 1999-08-26 2001-02-28 Basf Aktiengesellschaft Nickel-antimony-rutile mixed-phase pigments containing tungsten

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DE3604317A1 (en) * 1986-02-13 1987-08-20 Basf Lacke & Farben TEMPERATURE-STABLE RUTILE MIXED-PHASE PIGMENTS
DE19939263A1 (en) * 1999-08-19 2001-02-22 Basf Ag Manganese-antimony-rutile mixed phase pigments

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DE523015C (en) * 1928-04-15 1931-04-18 Auergesellschaft Gmbh Process for cleaning impure, especially chromium-containing titanium dioxide
FR731127A (en) * 1931-02-07 1932-08-29 Ig Farbenindustrie Ag Process for preparing inorganic colored pigments
US1995580A (en) * 1931-10-01 1935-03-26 Ig Farbenindustrie Ag Manufacture of rutile
FR808029A (en) * 1935-07-20 1937-01-27 Process for the production of a series of colored pigments obtained from derivatives of titanic acid and resistant to the action of light, weathering, acids and alkalis, whether or not concentrated
GB472605A (en) * 1936-03-24 1937-09-24 Titan Co Inc Improvements in or relating to the production of coloured titanium pigments
FR841794A (en) * 1937-08-07 1939-05-26 Titan Co Process for the manufacture of pigments containing rutile-structured titanium anhydride
DE684658C (en) * 1932-10-29 1939-12-02 Titan Co Inc Manufacture of cobalt titanate
DE708381C (en) * 1936-04-17 1941-07-19 I G Farbenindustrie Akt Ges Manufacture of titanium pigments
US2253551A (en) * 1938-06-22 1941-08-26 Du Pont Titanium pigment production
US2290539A (en) * 1937-08-07 1942-07-21 Nat Lead Co Preparation of rutile titanium dioxide
GB549120A (en) * 1941-07-03 1942-11-06 British Titan Products Improvements in or relating to the manufacture of titanium pigments
US2307048A (en) * 1939-09-15 1943-01-05 Du Pont Production of tio2 pigments
US2316840A (en) * 1939-08-07 1943-04-20 Nat Lead Co Preparation of rutile titanium dioxide
GB561142A (en) * 1942-07-30 1944-05-08 British Titan Products Improvements in or relating to the manufacture of titanium pigments
FR953424A (en) * 1947-09-12 1949-12-06 Rhone Poulenc Sa Yellow mineral dyes, their manufacturing process and applications

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE523015C (en) * 1928-04-15 1931-04-18 Auergesellschaft Gmbh Process for cleaning impure, especially chromium-containing titanium dioxide
FR731127A (en) * 1931-02-07 1932-08-29 Ig Farbenindustrie Ag Process for preparing inorganic colored pigments
US1995580A (en) * 1931-10-01 1935-03-26 Ig Farbenindustrie Ag Manufacture of rutile
DE684658C (en) * 1932-10-29 1939-12-02 Titan Co Inc Manufacture of cobalt titanate
FR808029A (en) * 1935-07-20 1937-01-27 Process for the production of a series of colored pigments obtained from derivatives of titanic acid and resistant to the action of light, weathering, acids and alkalis, whether or not concentrated
GB472605A (en) * 1936-03-24 1937-09-24 Titan Co Inc Improvements in or relating to the production of coloured titanium pigments
DE708381C (en) * 1936-04-17 1941-07-19 I G Farbenindustrie Akt Ges Manufacture of titanium pigments
FR841794A (en) * 1937-08-07 1939-05-26 Titan Co Process for the manufacture of pigments containing rutile-structured titanium anhydride
US2290539A (en) * 1937-08-07 1942-07-21 Nat Lead Co Preparation of rutile titanium dioxide
US2253551A (en) * 1938-06-22 1941-08-26 Du Pont Titanium pigment production
US2316840A (en) * 1939-08-07 1943-04-20 Nat Lead Co Preparation of rutile titanium dioxide
US2307048A (en) * 1939-09-15 1943-01-05 Du Pont Production of tio2 pigments
GB549120A (en) * 1941-07-03 1942-11-06 British Titan Products Improvements in or relating to the manufacture of titanium pigments
GB561142A (en) * 1942-07-30 1944-05-08 British Titan Products Improvements in or relating to the manufacture of titanium pigments
FR953424A (en) * 1947-09-12 1949-12-06 Rhone Poulenc Sa Yellow mineral dyes, their manufacturing process and applications

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1078956A1 (en) * 1999-08-26 2001-02-28 Basf Aktiengesellschaft Nickel-antimony-rutile mixed-phase pigments containing tungsten
US6334892B1 (en) 1999-08-26 2002-01-01 Basf Aktiengesellschaft Tungsten nickel-antimony-rutile mixed-phase pigments

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