Production process for ammonia gas and calcium chloride through
The invention belongs to the field of chemical technology and relates to a technology for comprehensively utilizing ammonium chloride and carbide slag to prepare high-grade …
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Research Progress on Controlled Low-Strength Materials: …
The analysis and observations in this article offer a new resource for SCM development, describe a basis for using metallurgical waste slag as a cementitious material for CLSM preparation, and offer a strategy for reducing the environmental problems associated with the treatment of metallurgical waste.
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An Innovative Approach to Prepare Calcium Oxide from …
2024423· Its preparation process is a typical CaCO3-consumption process, which converts carbon from semi-coke into downstream chemicals. However, after releasing CO2, this calcium resource is not efectively used, because it forms calcium carbide slag (CS; main component = Ca-(OH)2); (eq 1−3).3,4 CS can be used to prepare calcium oxide.
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Durability performance of waste glass powder and calcium oxide …
81· The addition of GP has no effect on the improvement of chloride ion erosion resistance of CaO and sodium carbonate composite activated slag mortar, but the chloride ion electric flux is lower than 1200 C at 28 d. CaO and GP are beneficial to improve the resistance of alkali-excited slag mortar to sulfate attack.
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Full article: Application of Reutilization Technology …
20111010· The treatment of wastewater and fluoride mostly by the addition of calcium chloride (CaCl 2) results in the production of a nearly …
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Cement–Industrial Waste Slag-Based Synergistic …
2025526· In order to study the cement–industrial waste-based synergistic curing of silt soil, orthogonal design tests were used to prepare a new curing …
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Process flow chart depicting the main units
Therefore, converting the solid waste carbide slag produced by the calcium carbide industry into high value-added CaCO3, CaCl2, CaSO4 whiskers, etc. …
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114-1522-1-LE
A recently developed mineral carbonation process producing a valuable product covering process implementation costs is advanced towards commercial scale. In this two-step process, calcium-rich steel converter slag is treated with an aqueous …
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Production of Precipitated Calcium Carbonate from Steel Converter Slag
201411· As a by-product of the Solvay process, used to manufacture sodium carbonate and calcium chloride from sodium chloride and calcium carbonate, also calcium carbonate is precipitated.
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American Concrete Institute
American Concrete Institute
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CN101186316A
The invention belongs to the technology of energy-saving and emission-reduction, waste residue system alkali, make the production of calcium carbide, polyvinyl chloride, soda ash, chlor-alkali become association, the apparatus and method of utilizing the carbide slag of waste gas calcined limestone that furnace of calcium carbide produces and acetylene to produce soda ash.
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Single Process for CO2 Capture and Mineralization in …
Calcium chloride was added as a calcium source in the mineralization process. Integration of absorption and mineralization defined as a single process was …
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Two-stage leaching of calcium and vanadium from high …
Generally, basic oxygen furnace (BOF) slag is high in calcium (Ca) but low in V. Ca content and its chemical nature can prevent V leaching. This study presents a potential two-stage leaching process for Ca and V from BOF slag. The method is environmentally friendly using low temperatures and enabling leachate recycling.
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Review on treatment and utilization of barium slag in China
11· Kulkarni et al. (1998) proposed a process treating BS with calcium chloride solution, and barium chloride can be recovered by the double decomposition reaction, leaving calcium sulfide in the solid residue.
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Method of producing calcium chloride from industrial waste …
A technology of industrial waste and carbide slag, applied in the direction of calcium/strontium/barium chloride, calcium/strontium/barium halide, etc., can solve problems …
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Case study for production of calcium carbonate from carbon dioxide …
201661· The process requires a lot of washing water to remove ammonium and calcium chloride remnants from the slag residue and the calcium carbonate product. In order to minimise the need for solvent make-up and to clean up the spent water, a reverse osmosis (RO) unit is employed (Table 3).
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Preparation of calcium carbonate with microstructure and …
202471· Abstract Based on the composition characteristics of carbide slag and the application of polyvinyl chloride, a method of preparing calcium carbonate with microstructure and nanostructure by using carbide slag as a raw material and ammonium chloride as a leaching agent was proposed.
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High Performance Slag Materials – A Steel Industry …
125· Slag is not a waste product, but rather an intentional byproduct or co-product of ironmaking and steelmaking processes. The molten slag …
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Research Progress on Controlled Low-Strength Materials: …
The analysis and observations in this article offer a new resource for SCM development, describe a basis for using metallurgical waste slag as a cementitious material for CLSM preparation, and offer a strategy for reducing the environmental problems associated with the treatment of metallurgical waste.
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Sustainable Calcium Chloride Production
612· Discover the sustainable uses and benefits of calcium chloride products with TETRA Chemical. Read about TETRA’s sustainable calcium …
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Process flow chart depicting the main units
Therefore, converting the solid waste carbide slag produced by the calcium carbide industry into high value-added CaCO3, CaCl2, CaSO4 whiskers, etc. …
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43616C6369756D2043686C6F726964652048616E64626F6F6B
MANUFACTURING PROCESS Calcium chloride is produced by OxyChem using the natural brine process. Aqueous brine is extracted from natural underground deposits by a third-party company. This company adds lime to the brine to precipitate magnesium as magnesium hydroxide, which is removed by filtration and clarification. The remaining calcium chloride-rich brine is transferred …
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Recycling and utilization of calcium carbide slag
51· Coal is the dominant fuel in China to provide primary energy, and 70% of polyvinyl chloride is produced from coal-based CaC2. CaC 2 reacts with water to produce acetylene and calcium carbide slag (CCS) as a solid waste for polyvinyl chloride production. Approximate 40 million tons of dry CCS are generated annually in China, among which only a …
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Demonstration application of Chinese-made chlorine bypass …
113· Calcium carbide residue and solid waste (such as granulating slag, contaminated soil, aluminium ore mining waste, furnace slag, lead-zinc residue, pulverized coal fly ash and iron mine beneficiation residue) are related to the co-process of solid waste by kiln.
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CN105858700A
The invention discloses a novel production technique for preparing calcium chloride from carbide slag. The technique comprises the following steps: 1) pouring 25-33% technical hydrochloric …
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محطة تكسير الجرانيت بقدرة 500 طن في الساعة بمكة