Calcium carbonate crystallization process from the …
The distillation waste stream from the ammonia-alkali process contains 90–120 g/L of calcium chloride. Using calcium chloride as raw material to mineralize carbon dioxide can achieve efficient utilization of calcium chloride waste and CO 2 emission reduction. This article is based on a two-step synthesis method, using …
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Calcium recovery from waste carbide slag via ammonium …
Abstract. Waste carbide slag (WCS) is a typical industrial solid waste with high calcium content, which shows highly potential in preparation of CaCO 3 by CO 2 …
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A novel conversion process for waste slag: synthesis of …
The synthesis of slag-made calcium silicate hydrate (slagCS) was achieved via a facile two-step dissolution–coprecipitation procedure using HCl and NaOH, …
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Research on the Leaching of Calcium Ions from De
The calcium-containing phases in de-vanadiumized steel slag are calcium hydroxide [Ca(OH) 2] and calcium carbonate phase (CaCO 3); within the leaching …
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Production of Precipitated Calcium Carbonate from Steel Converter Slag
Carbon dioxide for PCC manufacturing is in general taken from cleaned flue gases of industries located nearby the PCC plant, thus reducing the CO 2 emissions from this specific source. However, the production of reactive calcium from limestone usually generates an amount of CO 2 equal to or larger than what is chemically stored in …
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Resource utilization of solid waste carbide slag: a brief …
Calcium chloride production from carbide slag. Calcium chloride can be prepared by the processes of reacting stone powder or lime with hydrochloric acid, filtering, …
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Development of calcium coke for CaC2 production using calcium …
A type of calcium coke was developed for use in the oxy-thermal process of calcium carbide production. The calcium coke was prepared by the co-pyrolysis of coking coal and calcium carbide slag, which is a solid waste generated from the chlor-alkali industry. The characteristics of the calcium cokes under different conditions were …
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calcium chloride manufacturing process from waste slag
Pilotscale Experimental Work on the Production of Producing precipitated calcium carbonate (PCC) from steelmaking slag (Slag2PCC) is a way to reduce CO2 emissions while at the same time turning slag waste into a valuable product In the Slag2PCC process, a solution of ammonium chloride (NH4Cl) is used to extract calcium from …
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Resource utilization of solid waste carbide slag: a brief …
Carbide slag is a kind of waste residue with calcium hydroxide which is the main component after acetylene gas produced by hydrolysis of calcium carbide . Generally, a large amount of carbide slag is produced in the process of using calcium carbide to produce acetylene, polyvinyl chloride, acetone, and other chemical products.
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Calcium Chloride Products
TETRA produces the highest quality calcium chloride products in the world thanks to our proprietary manufacturing process and high-quality raw materials. TETRA uses food grade quality hydrochloric acid and high purity limestone as raw materials to deliver calcium chloride with very low levels of alkali metals, iron, and other impurities.
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Research on Utilizable Calcium from Calcium Carbide Slag …
Carbide slag is highly alkaline and contains a large amount of calcium elements, making it an excellent material for CO 2 mineralization. Our idea was to …
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CO2 mineralization of carbide slag for the production of light calcium …
Abstract. The production of polyvinyl chloride by calcium carbide method is a typical chemical process with high coal consumption, leading to massive flue gas and carbide slag emissions. Currently, the carbide slag with high CaO content is usually stacked in residue field, easily draining away with the rain and corroding the soil.
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Advances in geopolymer materials: A comprehensive review
Solid waste and organic incineration ash can be used as activators. N–A–S and N–A–S–H gel are mainly formed from alkali-activated low-calcium precursor and waste glass activator, while C–S–H and C–A–S–H gel are mainly production of alkali-activated high-calcium material and waste glass activator (Liu et al., 2019).
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calcium chloride manufacturing process from waste slag
Applicability and process economics of several calcium-containing solid industrial waste materials, such as steel slag (5–10), air pollution control residue (11,12), bottom ash from municipal solid waste or refuse-derived fuel incineration (6,12,13), oil shale ash (14), waste concrete (15–17), cement kiln dust (CKD) (18), and brines (19,20 ...
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The synthetic process of calcium carbonate from carbide slag
The production of polyvinyl chloride by calcium carbide method is a typical chemical process with high coal consumption, leading to massive flue gas and carbide slag emissions. Currently, the ...
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A review on calcium-rich industrial wastes: a sustainable
This study provides an overview of calcium rich industrial wastes usage in construction materials, their properties and different applications through marble waste and flue gas desulfurization (FGD) gypsum. Large quantities of industrial wastes are stockpiled and haphazardly disposed in increasing amounts causing serious environmental …
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A novel conversion process for waste slag: synthesis of …
The synthesis of slag-made calcium silicate hydrate (slagCS) was achieved via a facile two-step dissolution– coprecipitation procedure using HCl and NaOH, respectively.
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CN102786074A
The invention provides a calcium chloride production process. The process comprises the steps of inputting hydrochloric acid and limestone into a reaction tank for neutralization reaction according to a certain proportion, heating a calcium chloride which is subjected to reaction, evaporating water, cooling, and crystallizing to obtain a calcium chloride product.
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Process for the manufacture of calcium chloride
CA1130935A Process for treating waster water. US4389317A Process for chemical reduction of the phosphate content of water. US4704265A Process for the manufacture of calcium chloride. US4032616A Process for the production of sodium bicarbonate from diaphram cell liquors.
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Alkali-activated materials without commercial activators: a …
The production of acetylene leads to the generation of Ca(OH) 2, resulting in the production of a waste product known as calcium carbide slag (CS) [31, 32]. Additionally, soda scraps (SDS) are residues stemming from the manufacturing process of Na 2 CO 3 [33, 34]. Alkaline solutions are employed in industrial production for various …
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Calcium Chloride Manufacturing Process Overview
Calcium chloride (CaCl2) is a nonsynthetic, inorganic chemical that is manufactured by the Occidental Chemical Company in the manner described below: Manufacturing Process …
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Research on the Leaching of Calcium Ions from De
Steel slag is a kind of bulk alkaline industrial solid waste produced in the steelmaking process. Resource utilization of this solid waste is an urgent problem to be solved in the steel industry to achieve green and low-carbon development. Carbonation of steel slag is one of the key technologies for the utilization of steel slag and the reduction …
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A novel conversion process for waste slag: synthesis of a …
The main components of blast furnace slag (BFS) are CaO, SiO2, A12O3, MgO and slight amounts of transition metals such as Fe, Ti and Mn. We successfully synthesized a hydrotalcite-like compound from BFS via a convenient chemical process: acid-leaching and precipitation. After the HCl acid-leaching process, BFS was separated …
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Preparation and Characteristics of Polyaluminium Chloride by
Clay-brine process employing activated clay, NaCl, HCl, and HF as raw materials is the primarily advanced technology to synthesize cryolite in the present industrial grade. However, plenty of byproducts of fluorine-containing waste HCl at the concentration of about 10%~12% could not be utilized comprehensively and are even hazardous …
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Utilization of steel slag waste as construction material: A …
Ferro Chrome Slag (FCS) is a by-product waste material produced during the manufacturing process of high-carbon ferrochromium alloy. Ferrochrome is an essential component of stainless steel because of its ability to resist corrosion. The alarming growth of ferrochrome slag deposits during stainless steel production is a major concern nowadays.
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calcium chloride manufacturing process from waste slag
calcium chloride manufacturing process from waste slag. Calcium chloride can be made by calcium carbide slag instead of stone powder and hydrochloric acid by reaction filtration concentration and crystallization dehydration drying etc. Calcium chloride is widely used in coolants infrastructure antifreeze road spray and protective agent medicine ...
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Sustainable Calcium Chloride Production
The Company is committed to producing calcium chloride of exceptionally high quality and remaining a reliable—and sustainable—supplier for many years to come. Jansson is Technical Manager at TETRA Chemicals Europe. He has over 25 years of experience in the chemical industry including research & development, process …
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TiO2 manufacturing by different processes. (a) Sulphate process…
The ilmenite-chloride process has used for the production of TiCl4 from the ilmenite (FeTiO3) ore, which produces cyclone dust containing mostly iron chloride and includes a range of metal chlorides.
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Technology of Ash and Slag Waste Processing by …
Chloridizing processing of accumulated ash and slag waste of the Kazakhstan CHP plants has been studied. The possibility of separating iron from ash by magnetic separation to obtain a commercial iron-containing product (≈50% Fe) is demonstrated. ... This will improve the contact between the ash particles and calcium chloride, while …
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calcium chloride manufacturing process from waste slag calcium chloride
Leblanc process – Wikipedia, the free encyclopedia. The Leblanc process was an early industrial process for the production of … The only waste product of this Solvay process was calcium chloride, and so … acid boiler slag … » Free Online Chat Production of Sodium Carbonate | eHow … for industrial use, while the Leblanc's process is …
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