METHOD FOR SYNTHESIS OF FINELY DISPERSED CALCIUM CARBONATE IN FIELD OF LOW-FREQUENCY VIBROACOUSTIC EFFECT Russian patent published in 2024 - IPC C09C1/02 C01F11/18 

Abstract RU 2824363 C1

FIELD: chemical or physical processes.

SUBSTANCE: invention relates to methods for synthesis of precipitated carbonate. Disclosed is a method for synthesis of highly dispersed calcium carbonate with a range of particle sizes of 5–8 mcm, which consists in reacting calcium hydroxide in amount of 5–10 g/l with carbon dioxide in an aqueous medium, carried out in the presence of sulphonol in the aqueous medium as surfactants with content of 0.01–0.5 wt.%, based on the weight of the calcium hydroxide sample taken for synthesis, and saccharose in concentration of 100 g/l, wherein introduction of carbon dioxide and subsequent homogenisation of matrix solution is carried out under action of external low-frequency vibroacoustic oscillations with frequency value selected from range of 15–20 Hz.

EFFECT: implementation of the purpose, which consists in obtaining finely dispersed calcium carbonate.

1 cl, 3 ex

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RU 2 824 363 C1

Authors

Boldyrev Veniamin Stanislavovich

Meshalkin Valerii Pavlovich

Bogatov Nikita Alekseevich

Savina Anastasiia Sergeevna

Zotkin Aleksandr Pavlovich

Dates

2024-08-07Published

2023-09-29Filed