CONCRETE MIX ADMIXTURE MAKING PROCESS Russian patent published in 2009 - IPC C04B26/00 C04B24/20

Abstract RU 2357938 C1

FIELD: chemistry; construction.

SUBSTANCE: invention refers to construction materials as applied to concrete and foam concrete mortars. The process involves phenol waste sulphonation with sulphonating agent represented by 94-96% sulphuric acid in ratio of phenol wastes: sulphonating agent as 1:1¹/₁₀. The reaction mass is neutralised. Before sulphonation, the phenol waste is treated with d-metal salts at temperature 80-100°C during 0.8-1.0 h. Thereafter organic phase of the prepared reaction mass is separated and sulphonated.

EFFECT: simplified and more efficient process.

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RU 2 357 938 C1

Authors

Shoshin Evgenij Aleksandrovich

Dates

2009-06-10—Published

2007-12-19—Filed