RAW MIX FOR CEMENT MANUFACTURING Russian patent published in 2008 - IPC C04B7/04 C04B7/38

Abstract RU 2332371 C1

FIELD: chemistry.

SUBSTANCE: invention relates to composition of raw mixes, used for cement production. Raw mix for cement production contains pelitic component, pyrite cinder, slam of neutralisation of manufacturing water of phosphoric acid production, magnesium carbonate, phosphogypsum, dust of electro-filters of rotary furnaces of cement production industry, limestone and additionally sulphite-alcohol dregs and slime of neutralisation of manufacturing water of sulphuric acid with the following ratio of components, mass%: pelitic component 20.0-30.0, pyrite cinder 1.0-2.0, slam of neutralisation of manufacturing water of phosphoric acid production 3.0-4.0, magnesium carbonate 3.0-4.0, phosphogypsum 1.0-2.0, dust of electro-filters of rotary furnaces of cement production industry 5.0-10.0, sulphite-alcohol dregs 0.1-0.2, slime of neutralisation of manufacturing water of sulphuric acid 4.0-5.0, limestone - remaining part.

EFFECT: increase of cement strength.

1 tbl

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RU 2 332 371 C1

Authors

Shchepochkina Julija Alekseevna

Dates

2008-08-27—Published

2007-01-17—Filed