WO 2023/068587 A1

Method for preparing gypsum by using bio-sulfur, and use thereof

(22) 28.09.2022

(43) 27.04.2023

(57) Disclosed are: a method for preparing gypsum, which contains a large amount of anhydrite, by using bio-sulfur; and a use of gypsum prepared thereby. The preparation method according to the present invention allows gypsum, which contains a large amount of anhydrite, to be prepared in an eco-friendly manner. The gypsum according to the present invention contains a large amount of anhydrite, and does not contain environmental pollutants such as heavy metal ions since bio-sulfur is used, and thus can be used as gypsum for a gypsum board, an auxiliary material for blast furnace slag grinding, an admixture for cement, gypsum for slag cement, and the like.

(71) Esci Co., Ltd. Jeollabuk-do (KR); Ecobio Holdings Co., Ltd., Seoul (KR); Total Agro Co., Ltd., Seoul (KR

This article appeared in

ZKG 5/2023

This article appeared in

ZKG 5/2023

Ressort:  Patents
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