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2 248 333

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C1

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IPC

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Application

2003119671/03, 2003-06-30

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Start date

2003-06-30

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Actual filing date

2003-06-30

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Published

2005-03-20

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Inventor

Shcherbina N.F.Kochetkova T.V.Eliseeva V.I.

(73)

Holder

Institut Khimii I Tekhnologii Redkikh Ehlementov I Mineral'Nogo Syr'Ja Im. I.V. Tananaeva Kol'Skogo Nauchnogo Tsentra Rossijskoj Akademii Nauk

BROWN CERAMIC PIGMENT Russian patent published in 2005 - IPC

Abstract RU 2248333 C1

FIELD: ceramic pigment technology, in particular manufacturing of colored ceramic products.

SUBSTANCE: claimed pigment contains (mass %): Fe2O3 21.90-23.10; ZnO 33.04-38.56; SiO2 1.10-2.4; Al2O3 0.89-1.08; TiO2 9.30-11.01; CaO 0.99-1.14; MnO 1.04-1.20; MgO 0.40-0.62; K2O 0.24-0.36; FeO 22.70-27.00; Na2O 0.32-0.54; P2O5 0.21-0.41; V2O5 0.25-0.30. Titanomagnetite concentrate and zinc oxide are used as raw materials. Pigment composition of present invention makes it possible to reduce synthesis temperature up to 750-11000C and increase color purity up to 31.5-33.1 %.

EFFECT: pigment composition with increased color gamma and improved chemical durability in aggressive environment.

2 tbl

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RU 2 248 333 C1

Authors

Shcherbina N.F.

Kochetkova T.V.

Eliseeva V.I.

Dates

2005-03-20—Published

2003-06-30—Filed

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