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2 006 030

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C1

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IPC

(21) (22)

Application

4928758/33, 1991-04-19

(22)

Actual filing date

1991-04-19

(45)

Published

1994-01-15

(72)

Inventor

Ovcharenko G.I.

(73)

Holder

Altajskij Gosudarstvennyj Tekhnicheskij Universitet Im.I.I.Polzunova

METHOD OF DETERMINING FREE CALCIUM OXIDE CLOSED BY GLASS PHASE IN BROWN COAL ASHES Russian patent published in 1994 - IPC

Abstract RU 2006030 C1

FIELD: building materials. SUBSTANCE: method involves the steps of: taking samples of brown coal ashes, carrying out chemical analysis for free calcium oxide in initial ash and in ash after its grinding to specific surface of 800-1000 squared cm/g, then determining free calcium oxide in initial ash as a function of free calcium oxide open or closed by glass phase in ash after grinding, and finally determining free calcium oxide closed by glass phase of ash of a batch to be analyzed from the obtained relationship. EFFECT: simplified method.

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RU 2 006 030 C1

Authors

Ovcharenko G.I.

Dates

1994-01-15—Published

1991-04-19—Filed

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