The optimization of the dephosphorization by these strains was also investigated, and the maximum percentages of phosphate removal were recorded at temperature 27-30 °C, initial pH 5.0-6.5, particle size 0.07-0.1 mm, and pulp density of 2-3% (w/v), respectively. The fungus A. niger was found to have good potential for the dephosphorization of ...
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Dephosphorization slag is primarily composed of CaO–SiO2–FeO–P2O5 slag system. As it contains abundant valuable components, dephosphorization slag is considered a potential material to restore the degraded acid soil. To efficiently supply Ca, Si, Fe, and P elements for acid soil, the dissolution behavior of dephosphorization slag with high P2O5 …
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What does dephosphorization mean? Information and translations of dephosphorization in the most comprehensive dictionary definitions resource on the web. Login
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Journal of Biomimetics, Biomaterials and Biomedical Engineering International Journal of Engineering Research in Africa
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Dephosphorylation. Dephosphorylation is a common step in traditional cloning workflows to ensure that the vector does not re-circularize during ligation. If a vector is linearized by a single restriction enzyme, or has been cut with two enzymes with compatible ends, use of a phosphatase, such as Quick CIP, to remove the 5´ phosphate reduces ...
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In the present work, the effect of dephosphorization slag basicity on the dephosphorization of hot metal has been studied in the lower temperature range of 1370 °C to 1420 °C and the lower basicity of 1.26 to 2.20 with new double slag converter steelmaking process (NDSP). Based on the ion-molecule coexistence theory (IMCT), the thermodynamic …
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citeulike,BibtexRIS；. BibtexRIS；. zotero、endnote,BibtexRIS. 2/2. 【Myciteulike】,,【import】. ...
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Câu 1. Thành phần chính của quặng photphorit là canxi photphat. Công thức của canxi photphat là. A. Ca 3 (PO 4) 2. B. CaSO 4. C. Ca (H 2 PO 4) 2. D. CaHPO 4. Câu 2. Có mẫu chất rắn khan sau: NH 4 NO 3, Na 3 PO 4, KCl để nhận biết 4 mẫu đó người ta dùng dung dịch.
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In most cases, hot metal dephosphorization slag is saturated with dicalcium silicate, and the partition ratio of phosphorus between dicalcium silicate and liquid slag is high. These results indicate the important role of solid dicalcium silicate in dephosphorization. In order to understand the reaction kinetics and obtain an optimum treatment ...
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Dephosphorization synonyms, Dephosphorization pronunciation, Dephosphorization translation, English dictionary definition of Dephosphorization. Dephosphorization. Translations. Italian / Italiano: defosforazione. Dephosphorization - definition of …
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Français: ·Action d'extraire du phosphore de la fonte ou de l'acier. On souffle rapidement, la charge ne projette pas et on peut accélérer l'affinage; la disparition du silicium et du carbone prend 5'30", la déphosphoration est très rapide à cause de l'allure froide et de l'excès de chaux ; on sursouffle quelques secondes pour oxyder ...
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In this work, a dynamic model was established for the dephosphorization of metallurgical grade silicon by levitation refining. Particular emphasis was placed on the transport behavior of phosphorus in the liquid boundary layer, then at the melt surface and finally within the gas phase surrounding the levitated droplet. Within the melt boundary layer, and at the droplet …
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The influence of temperature on the dephosphorization of hot metal at the low temperature range of 1300–1450 °C with the slag of the low basicity (CaO/SiO 2) of about 1.8 is investigated using high-temperature laboratorial experiments.The results show that with increasing temperature, the phosphorus contents in hot metal decrease first and then increase.
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Under this optimum conditions, the denitrification and dephosphorization effect can reach more than 70% when pH value was at 3-9. Dynamics research results showed that the ammonia nitrogen and phosphorus removal progress by chitosan/4A Zeolite/Zr based Zeolite was in accordance could be well described by the pseudo-second-order kinetic model ...
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Về thực chất thì photphorit là 1 loại đá trầm tích gồm cất khoáng thiết bị canxi photphat ở trong nhóm apatit, đề xuất trong yếu tắc của quặng photphorit đang không thể không có nguyên tố là P2O5. Tuy nhiên, các chất của P2O5 sẽ là khác biệt cùng với từng quặng photphorit ví ...
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I. Quặng sắt: Hematit đỏ: Fe 2 O 3 khan. Hematit nâu (limonit): Fe 2 O 3 .nH 2 O. Manhetit: Fe 3 O 4. Xiderit: FeCO 3. Pirit: FeS 2 (không dùng qặng này để điều chế Fe vì chứa nhiều lưu huỳnh, dùng để điều chế H 2 SO 4 ). II. Quặng kali, natri: Muối ăn : NaCl ;
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You should be able to use the "Post to CiteULike" bookmarklet to automatically add articles from MathSciNet to your library without all that tedious mucking about copying and pasting details. By experimental, I mean that it seems to work, but I'd be interested to hear from you at bugs@citeulike if it's not behaving.
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This study focused on characterizing the correlation between the dephosphorization process of calcined water treatment plant sludge (C-WTPS) and the solution initial pH in batch experiments. The specific aim was to illustrate the effect of different initial …
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Dephosphorization pretreatment or decarburization and heating are completed in one converter. 1. The metal-slag is completely separated after the dephosphorization pretreatment, which is helpful for producing ultralow [P] steel. 2. The high temperature decarburization slags can be directly used in dephosphorization.
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alloy. Dephosphorization under gaseous conditions may also result in loss of Mn, which has a higher vapour pressure than P. Application of the technique is deemed undesirable for dephosphorization of FeMn alloys (Chaudary and Goel, 1994). Considering the abovementioned reaction mechanisms, dephosphorization of liquid FeMn alloy by basic slags for
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The effect of slag composition under M'O (monoxide, M = Fe,Mg) saturation and fully liquid conditions on dephosphorization and slag ability was evaluated in an electric arc furnace (EAF) steelmaking plant operation by considering thermodynamics and phase equilibria. It was confirmed that M'O saturation slag is more favorable for higher dephosphorization than …
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In most cases, hot metal dephosphorization slag and BOF slag consist of CaO-SiO 2-Fe t O-P 2 O 5, and the industrial operations are carried out in the C 2 S saturated region (Pahlevani et al., 2010).A solid solution of C 2 S …
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The dephosphorization rate and energy consumption are shown in Fig. 5f. When the influent pH is 4.4, 6.6, and 7.9, the dephosphorization rate is 1.20, 1.07, and 0.88 μg·min −1 ·cm −2, respectively. Owing to the theoretically lower charge efficiency when removing HPO 4 2−, the energy consumption increases with the increase in pH.
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【】：The principle of the dephosphorization for stainless steels differs from that of other low alloy steels,which should not only decrease phosphorous content efficiently but also keep the concentration of Cr almost lossless.In these cases,two techniques can be selected.The strategy for oxidational dephosphorization is illustrated in terms of "the selective oxidation among …
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Abstract and Figures. The removal of phosphorus from the furnace charge is a well understood process today and is described by using the phosphorus partition ration between metal and slag Lp ...
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