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2 145 589

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IPC

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Application

98115550/02, 1998-08-10

(24)

Start date

1998-08-10

(22)

Actual filing date

1998-08-10

(45)

Published

2000-02-20

(72)

Inventor

Mel'Nikov N.N.Podozerskij D.S.Edigarev S.A.Vlasova E.A.Pochekutov V.I.

(73)

Holder

Gornyj Institut Kol'Skogo Nauchnogo Tsentra Ran

METHOD OF PREPARING WATER-CONTAINING EXPLOSIVE Russian patent published in 2000 - IPC

Abstract RU 2145589 C1

FIELD: mining industry, more particularly breaking up of flooded and cracked rocks. SUBSTANCE: oxidizer solution is thickened with silicic acid, and structure-forming organic additive is introduced prior to addition of granular ammonium nitrate at silicic acid gel to additive weight ratio of 1: (0.1-0.5). In this case, thickening of oxidizer solution is finally completed at pH of 2.5-6.0 and stirring time from moment of introduction of organic additive varies from 0.5 to 3.0 hours. Organic additive is carboxymethyl cellulose sodium salt or polyacrylamide. EFFECT: higher water resistance and reduced spreading along cracks of the water-containing explosive. 2 cl, 9 ex

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RU 2 145 589 C1

Authors

Mel'Nikov N.N.

Podozerskij D.S.

Edigarev S.A.

Vlasova E.A.

Pochekutov V.I.

Dates

2000-02-20—Published

1998-08-10—Filed

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