The characteristics of sintering flue gas are as follows large emissions; sharp change of concentration of sulfur dioxide; a high content of impurities which makes desulfurization process more difficult Limestone gypsum sintering flue gas desulfurization technology is the main method of sintering flue gas desulfurization processes [1]
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— Low temperature sintering cold sintering method has also been recently developed to produce hydroxyapatite block HA block was fabricated via phase transformation of set gypsum block using a similar method as previously described with some modifications of temperature and reaction condition First calcium sulfate
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— This study developed sintering bricks by adding various amounts of gypsum 10 30% as well as changing the sintering temperature sintering time and water content The Taguchi Orthogonal Array was used for experimental design and the density shrinkage variation and the mechanical performance were analyzed in order to apply
— Dense gypsum CaSO4·2H2O ceramics were successfully fabricated by a simple room temperature cold sintering process with 5 wt% water The relative density of gypsum ceramics increased from %
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However sintering of ceramic speci mens at high temperature to increase their density could oppositely resultin growing ofcrystal 9 Therefore a controlled sintering process at comparatively low tempera turetoavoidgraingrowth is akeytogettransparentalumina sintered specimens In general there are various shaping methods to prepare
— In the present study we propose a method for preparing foam glass ceramics by coupling multiple solid wastes at high temperatures The raw materials were fly ash BF slag desulphurisation gypsum and clay Fly ash mainly functioned as an aggregate Clay guaranteed the initial forming strength and promoted sintering
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The emission factor of SO2 was achieved by mass balance method In steel plant A the emission factor is kg SO2/t steel after flue gas desulfurization the factor dropped to kg SO2/t steel ：Study On The Limestone Gypsum Sintering Flue Gas Desulphurization Technology In Iron And Steel Plant DOI />Yêu cầu trực tuyến →
— Gypsum is widely used as the building decorative material in ceiling and partition projects Jia et al 2021 Aerogels are usually incorporated in gypsum plaster for reduction of overall weight and reinforcement of thermal resistance Hu et al 2019 Lamy Mendes et al 2021 Quan et al 2022 Effects of the resulting Si Al aerogels
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— At present the global reserves of gypsum resources are abundant but the development utilization rate is still in a low level Especially for the large production and inherent stockpiles of desulfurized gypsum and phosphogypsum and most of the waste gypsum poses a threat to surface water and groundwater affects environmental
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— These limitations often stem from the sintering process itself and the range of materials that can be effectively processed using this method The sintering process requires materials with a specific set of properties such as an appropriate melting point thermal stability and the ability to fuse together without excessive warping or distortion
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Red gypsum is generated from TiO2 production industry by the sulfate method which contains iron calcium and sulfur elements The iron and calcium elements can be reused as iron making raw materials but the sulfur element in the gypsum is required to be removed as it has a harmful effect on the properties of iron Herein the influence of carbon and pyrite
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Fixing gypsum board panels in the most cost effective direction for framing furring members is recommended Install single layer fire rated gypsum board as per the specifications of the fire resistance requirements Apply sealant to cut edges and holes in fire resistant gypsum board and outside soffit board
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— Overall most emerging sintering technologies aim for higher heating rates and faster process times This applies to FAST/SPS in the same way as to FS UHS and photonic sintering Out of these methods FAST/SPS and FS are best investigated FAST/SPS as the oldest method comes with geometric limitations and high equipment
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— Overall most emerging sintering technologies aim for higher heating rates and faster process times This applies to FAST/SPS in the same way as to FS UHS and photonic sintering Out of these methods FAST/SPS and FS are best investigated FAST/SPS as the oldest method comes with geometric limitations and high equipment
— In this study we investigated three new potential reference materials pyrite NWU Py gypsum NWU Gy and arsenopyrite NWU Apy for sulfur isotope ratio analysis by LA MC ICP MS The ultra fine powders of pyrite gypsum and arsenopyrite were synthesized into a solid block using the fast hot pressing sintering method FHP
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