الصفحة الرئيسية / اتصل
2023/11/22 Current study proposes an effective way to modify the properties of super-sulfated cement (SSC) paste and mortar with preheated flue gas desulfurization (FDG) احصل على السعر
2024/11/13 Desulfurized gypsum (DG) presents significant challenges in recycling with the rapid development of industrialization. To explore the feasibility of DG as a sulfate source in احصل على السعر
2023/8/22 The moisture content of FGD gypsum is similar to natural gypsum [86], around 8.0 – 12.1 % [9], [84]. LOI (Loss on Ignition) for FGD gypsum varies from 18 to 20 %. ...احصل على السعر
2024/1/17 The synthesis of α-calcium sulfate hemihydrate (α-CSH) from flue gas desulfurization (FGD) gypsum is a good way to realize the comprehensive utilization of FGD احصل على السعر
2020/6/20 Gypsum is composed of 79.1% calcium sulfate and 20.9% water (by weight). It is a nonmetallic mineral, one of the most abundant in the world, and is found in rock form. Its chemical formula is CaSO 4 2H 2 O, and احصل على السعر
2014/1/1 F lue gas desulfurization gypsum (FGDG) is a synthetic gypsum that is created during the removal of SO 2 from flue gas by reacting the SO 2 with calcite (CaCO 3) to form calcium sulfite (CaSO 3 0.5H 2 O), which is further احصل على السعر
2012/1/1 The main component of desulfurization gypsum is 2-water calcium sulfate (\( {\text{CaS}}{{\text{O}}_4} \cdot 2{{\text{H}}_2}{\text{O}} \)), which has the similar physical and احصل على السعر
2023/6/14 Calcium sulfate whiskers (CSWs) were synthesized using purified flue-gas desulfurization (FGD) gypsum as raw materials using a hydrothermal method, where the filtrate was recycled back to the reaction احصل على السعر
2021/11/1 Flue gas desulfurized gypsum mainly comes from thermal power plants, smelters, and large-enterprise boilers, and contains industrial by-products produced through a احصل على السعر
2023/8/22 The moisture content of FGD gypsum is similar to natural gypsum [86], around 8.0 – 12.1 % [9], [84]. LOI (Loss on Ignition) for FGD gypsum varies from 18 to 20 %. ... in احصل على السعر
2021/7/1 Flue gas desulfurized gypsum (FGD gypsum), mainly originates from thermal power plants, smelters, and large-scale enterprise boilers. This article reviews the production احصل على السعر
Calcium sulfate gypsum of 98% purity was obtained after three consecutive cycles of purification. Guan et al. (2011) prepared α-calcium sulfate hemihydrate (α-HH) from FGDG in pilot-scale احصل على السعر
Analysis on Determination Method of Calcium Sulfate Content in Desulfurized Gypsum CHEN Yuanyuan, ZHANG Zhiyong, WU Yu . Inner Mongolia Power Research Institute, Hohhot احصل على السعر
2023/8/22 The evolution of the morphology is determined by the preferential adsorption of the modifier on different surfaces of the α-HH gypsum crystals. These results and fundamental احصل على السعر
The accumulation of a large amount of flue gas desulfurized gypsum (FGDG) not only occupies valuable land resources, but also the harmful substances such as fluorine and heavy metals in احصل على السعر
2022/1/15 The semi-hydrate content of desulfurized gypsum is adjusted as a natural plaster substitute for producing gypsum board, wallboard [107]. ... the aluminum sulfate احصل على السعر
2024/11/13 Desulfurized gypsum (DG) presents significant challenges in recycling with the rapid development of industrialization. To explore the feasibility of DG as a sulfate source in احصل على السعر
2021/3/25 The calcium sulfite content in flue gas desulfurization ash increased to 81.17% when glacial acetic acid was used as the raw material for pickling. ... Liu et al. (2016) studied احصل على السعر
2022/1/1 The test results show that sodium sulfate has a poor improvement effect on the sample due to the presence of desulfurized building gypsum in the composite cementing احصل على السعر
2021/3/25 The calcium sulfite content in flue gas desulfurization ash increased to 81.17% when glacial acetic acid was used as the raw material for pickling. In the supersaturated احصل على السعر
2024/1/17 The synthesis of α-calcium sulfate hemihydrate (α-CSH) from flue gas desulfurization (FGD) gypsum is a good way to realize the comprehensive utilization of FGD احصل على السعر
2021/3/25 The calcium sulfite content in flue gas desulfurization ash increased to 81.17% when glacial acetic acid was used as the raw material for pickling. ... Liu et al. (2016) studied احصل على السعر
2022/1/1 The test results show that sodium sulfate has a poor improvement effect on the sample due to the presence of desulfurized building gypsum in the composite cementing احصل على السعر
2021/3/25 The calcium sulfite content in flue gas desulfurization ash increased to 81.17% when glacial acetic acid was used as the raw material for pickling. In the supersaturated احصل على السعر
2024/1/17 The synthesis of α-calcium sulfate hemihydrate (α-CSH) from flue gas desulfurization (FGD) gypsum is a good way to realize the comprehensive utilization of FGD احصل على السعر
2023/2/11 Desulfurization gypsum is mainly produced in the wet desulfurization process, and its main component is calcium sulfate dihydrate. Desulfurization gypsum has the same احصل على السعر
The invention belongs to the field of analytical chemistry and relates to a detection analysis method of calcium sulfate and calcium sulfite in desulfurized gypsum. The method comprises احصل على السعر
2023/11/10 When the sulfate content in cement is high, it will delay the setting time of the cement, and a large amount of ettringite will be produced in the later stage of hydration احصل على السعر
2022/11/6 Flue gas desulfurization gypsum (FGDG) is a type of industrial auxiliary gypsum obtained by desulfurization and purification of flue gas generated after the combustion of sulfur احصل على السعر
2021/7/1 Abstract. As a relatively fast-setting building material, desulfurized gypsum is difficult to use. Citric acid, sodium gluconate, and sodium tripolyphosphate were used to احصل على السعر
2020/6/20 Gypsum is composed of 79.1% calcium sulfate and 20.9% water (by weight). It is a nonmetallic mineral, one of the most abundant in the world, and is found in rock form. Its احصل على السعر
2022/7/25 However, semi-hydrated desulphurized gypsum mainly contained calcium sulfate dihydrate (CaSO 4 2H 2 O) and calcium sulfate hemihydrate (CaSO 4 1/2H 2 O). This احصل على السعر
2012/1/1 The main component of desulfurization gypsum is 2-water calcium sulfate (\( {\text{CaS}}{{\text{O}}_4} \cdot 2{{\text{H}}_2}{\text{O}} \)), which has the similar physical and احصل على السعر
2021/4/13 Flue gas desulfurization (FGD) gypsum and straw return have been recognized for their roles in reducing soil sodicity and improving soil organic matter. However, there are احصل على السعر
2017/6/1 The FGD gypsum can react with the main content of saline-alkali soil to improve the soil properties. ... (calcium sulfate) of the FGD gypsum and the components of the saline احصل على السعر