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THE STUDY OF NEUTRALIZATION OF THE DIHYDRATE PHOSPHOGYPSUM IMPURITIES

The paper presents the characterization of dihydrate phosphogypsum impurities, both in laboratory and in industrial scale, and chemical process of their neutralization in the lime suspension. The…

Evaluation of glauconite rock color stability during firing

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Formation of high-temperature crystalline phases in ceramic from illite clay and dolomite

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Influence of Ce3+ on the Formation of α-Semi-Hydrate Gypsum

Influence of Ce 3+ on the formation of α-semi-hydrate gypsum was investigated in this work. α-semi-hydrate gypsum is normally obtained by heat conversion of the dihydrate gypsum. The model system:…
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Use of an industrial by-product phosphogypsum in the production of white textured paints

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THE EFFECT OF THE PROCESSING WAY OF TECHNOGENIC RAW MATERIALS ON THE PROPERTIES OF GYPSUM BINDING MATERIALS

Abstract Since natural gypseous raw materials are not available in Lithuania, the production of gypseous binding materials is feasible only from different process waste. In the work the results of…
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Optimization of Intracellular Product Release from Neisseria denitrificans Using Microfluidizer

Results showed that optimized combination of known pretreatment and disruption methods could considerably improve cell disruption efficiency and release of intracellular content.
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Flocculation of Bacillus amyloliquefaciens H Disintegrates with Cationized Starch and Aminated Hydroxyethylcellulose

The results have shown that CHES and DEAE-HEC are promising flocculants of cell disintegrates if higher yield of protein is of great concern and depends drastically on the salt concentration.
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Microwave use of gypsum dehydration feasibility study

In this paper, we present the base techniques of a new fabrication procedure to obtain β-semy-hidrated calcium sulphate, β-plaster. The plaster is an aerial binder obtained through the dehydration of…
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INFLUENCE OF THE COMPOSITION OF PHOSPHATE ROCK ON THE AMOUNT OF WATER-INSOLUBLE PHOSPHATE IMPURITIES IN SEMI-HYDRATE PHOSPHOGYPSUM

In this work a chemical and mineral composition of phosphate rock and phosphogypsum was investigated in order to identify which impurities of phosphate rock prevent natural phosphates from…
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