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2 246 458

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IPC

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Application

2003135417/03, 2003-12-04

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Start date

2003-12-04

(22)

Actual filing date

2003-12-04

(45)

Published

2005-02-20

(72)

Inventor

Sizjakov V.M.Brichkin V.N.Starshinov A.V.Kuznetsov A.A.Pchelin I.I.

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Sankt-Peterburgskij Gosudarstvennyj Gornyj Institut Im. G.V. Plekhanova Universitet)

METHOD FOR HYDROCHEMICAL TREATMENT OF NEPHELINE PULP Russian patent published in 2005 - IPC

Abstract RU 2246458 C1

FIELD: Portland cement clinker technology, complex nepheline reprocessing, in particular Portland cement clinker production from nepheline pulp.

SUBSTANCE: claimed method includes pulp washing and treatment with alkali compound. According to the invention pulp is treated with lime milk in amount of 1.0-5.0 moles activated CaO to 1 mole of total alkali content in nepheline pulp, at 25-95⁰C for 1-4 h.

EFFECT: nepheline pulp and Portland cement with decreased alkali content; one-step method (alkali hydrochemical treatment) without using of caustic soda and additional water for washing.

9 ex, 1 tbl

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RU 2 246 458 C1

Authors

Sizjakov V.M.

Brichkin V.N.

Starshinov A.V.

Kuznetsov A.A.

Pchelin I.I.

Dates

2005-02-20—Published

2003-12-04—Filed