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Citric Acid Gypsum Production
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CN1188747A
The method of utilizing citric acid industrial waste residue to produce gypsum series product of the present invention, it is characterized in that this method comprises following process...
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Effect of citric acid on properties of recycled gypsum plaster …
Citric acid increases the fluidity of recycled gypsum plaster. Retarding effects are higher with high content of the admixture. Mechanical properties are diminished with the …
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An overview of key industrial product citric acid production …
Introduction. The word "citric" or 2-hydroxy-propane-1,2,3-tricarboxylic acid is derived from the Latin term citrus, which denotes trees of the genus Citrus, including lemon trees (Max et al., …
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Effects of glutaric acid, tricarballylic acid and citric acid on …
An aspect ratio (AR) close to 1 is essential to improve the quality and performance of α-HH gypsum. To solve this problem, the morphological modification of α-HH gypsum by …
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Recycling and disposal of gypsum-containing …
The cycle of citric acid production with the formation of gypsum-containing waste was considered and options for processing and utilization of citrogypsum were proposed.
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EXECUTIVE SUMMARY
Mycelium and gypsum are the by-products obtained. Mycelium is dried, to be used as animal feed or as fertiliser. The wet gypsum is required to be ... Sugarcane juice is in fact, a better raw …
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Citric Acid Production
It has been claimed that citric acid yields can range from 60 to 80 g of anhydrous citric acid per 100 g of integrated sugar, or even more. Wells, Moyer, and May achieved a maximum output of 90.7% citric acid from glucose …
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CN101255024B
As the production process of citric acid produces citric acid waste residue containing calcium sulphate, huge environment pollution is caused and no ideal method for producing building …
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Fungal Citric Acid Production Using Waste Materials: A Mini …
This mini-review discusses the production of citric acid using waste materials through microbial fermentation, emphasizing the advantages of using low-cost substrates in this process. ...
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Experimental Study and Mechanism Analysis of …
It was successfully applied to the practical production and application of FGD gypsum, citric acid gypsum and phosphogypsum. In this work, the compositions and morphology of the product at different stages of the …
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Introduction
Citric acid production on industrial scale begun in the mid-1800s based on traditional method of preparing citric acid by extraction from the juice of lemons and limes. As mentioned …
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Effect of different amendments on soil chemical …
A field trial experiment was carried out during the winter season of 2010/2011 to investigate the effect of different amendments i.e. gypsum, citric acid, farmyard manure, …
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CN101255024B
The citric acid production process is that raw material produces citric acid fermentation broth through fermentation with starch, by the lime carbonate neutralization, adds sulfuric acid …
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Effect of citric acid on properties of recycled gypsum plaster …
Traditionally superplasticizers are used from 0.2-1% from the weight of gypsum and the most common plasticizers used are naphthalene, melamine, polycarboxylate and citric acid …
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SEM of gypsum crystals in the presence of DHBDSA.
The effect of citric acid and 1,2-dihydroxybenzene 3,5-disulfonic acid (DHBDSA), as additives, on the crystallization of gypsum was studied under simulated conditions of the of phosphoric acid ...
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Effects of glutaric acid, tricarballylic acid and citric acid on …
In this work, the effects of glutaric acid (GA), tricarballylic acid (TA) and citric acid (CA) on morphology of prepared samples were systematically investigated by experiments and …
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Effect of Citric Acid on the Crystal Morphology of Gypsum …
Ersen et al. (2006) studied the retarding effect of carbonic acids, such as malic and citric acids on gypsum and PG crystallization, and referred this process to the fact of …
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Production of calcium sulphate alpha-hemihydrate from …
The gypsum obtained from citric acid, ... The acid purification of calcium citrate from citric acid production using sulfuric acid as a reagent resulted in citrogypsum waste. The …
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Nutritional effects on oxalic acid production and solubilization …
It is thought that gypsum solubilization is achieved by both oxalic acid and citric acid production (Gharieb & Gadd, 1999). Oxalic acid is a common metabolite produced by …
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Chemical treatment of phosphogypsum and its potential …
Phases in citric acid Content (%) Phases in oxalic acid Content (%) Coesite 1.953 Sisodium disilicate 8.568 Falalite 4.001 Wollastomite 0.134 Gypsum 91.939 Gypsum 87.249 …
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Effect of citric acid on setting inhibition and mechanical …
The role of citric acid, a retarder additive used to prolong the workability and setting time of gypsum binders, was studied at concentrations of 0, 125, 250, 500, 1000, 1500 and …
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Production, Cost Analysis, and Marketing of Citric Acid
Submerged fermentation is found to be responsible for around 80% of global citric acid production. Higher yields and cheaper labor costs are two advantages of submerged …
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Techno-economic analysis and environmental impact assessment of citric
In citric acid production industry, several recovery methods, such as calcium precipitation, solvent extraction, ion exchange, liquid membranes, microporous hollow fibers, …
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Factsheet on: What is Gypsum?
Gypsum', which can be considered for use by the Gypsum industry. 3. Citrogypsum Citric Acid is a component found in almost all plant and animal species, and is pivotal in the ... The most …
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SVXP FRQWDLQLQJ …
The cycle of citric acid production with the formation of gypsum-containing waste was considered and options for processing and utilization of citrogypsum were proposed.
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Citric Acid,China Acidity Regulators Manufacturer
Citric acid is used as a retardant in gypsum plaster. It is especially important in machine applied plaster and in casting plaster, which normally have longer setting times than wallboard plaster. Application of Acidity Regulators
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Evaluation of sustainable scrubbing agents for ammonia …
Organic acids (citric and acetic), chilled water, epsom and gypsum were tested for ammonia recovery from anaerobic digestate in a bench-scale stripping-scrubbing experimental …
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Citric Acid Supply Chain
Domestic Production and Consumption of Citric Acid in 2019 . Trade & Tariffs . Worldwide Trade . Worldwide import and export data for citric acid are reported through the World Bank's World …
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CN1188747A
A process for producing series of gypsum products with waste dregs from production of citric acid includes such technological steps as dewatering the waste dregs to obtain plaster, baking, …
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Insight into citric acid: A versatile organic acid
Among these, Aspergillus niger is the preferable for large-scale citric acid production because of its versatility in utilizing several cheap substrates to produce high citric …
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Citric acid production patent review
Current Review article summarizes the developments in citric acid production technologies in East and West last 100 years. Citric acid is commercially produced by large scale fermentation …
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Engineering Solid Mechanics
One of these wastes that requires the search and implementation of recycling routes is a by-product of the biochemical synthesis of citric acid – citrogypsum (CG).
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Optimization of strength and microstructural properties of …
Multiple additives are usually required to achieve better constructability for building gypsum-based materials. In this work, ternary contour was designed to determine the optimal …
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Physicomechanical Properties of Gypsum with …
Gypsum, from either nature or industrial by-products, can be a lower-cost and cleaner alternative binder to Portland cement used in construction projects, such as affordable housing in developing countries. Although various …
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Citribel | Citric Acid Manufacturer | Citric Acid …
The salt is redissolved in sulfuric acid, releasing citric acid in solution and gypsum. The gypsum (Citrogips ®) is separated by filtration, and the decomposed citric acid solution is further purified using ion exchange, activated carbon, and …
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Acid transformation of bauxite residue: Conversion of its …
Raising demand for alumina worldwide has increased the rate of bauxite residue production. ... a combination of sulfuric acid and gypsum, citric acid, a hybrid of citric acid and …
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