Dissertation > Excellent graduate degree dissertation topics show

Study on the Impact Factors and Mechanism of the Exhaust Gas by Extracting Technology of Vanadium from Stone Coal with Sodium Chloride Roasting

Author: YangChong
Tutor: QuanShuiQing
School: Nanchang University
Course: Environmental Science
Keywords: Vanadium Pent oxide Sodium chloride roast exhaust gas treatment
CLC: TF841.3
Type: Master's thesis
Year: 2011
Downloads: 68
Quote: 0
Read: Download Dissertation

Abstract


Vanadium is an important strategic material, China is one of the major countries with the large vanadium reserve in the world and stone coal is an important raw material for extracting vanadium in our country. Extraction of vanadium from stone coal is not only an important development of stone coal utilization, but a new direction of the smelting industry in China. Study on extraction vanadium from stone coal is of great practical significance and far-reaching historical significance. At present, domestic vanadium extraction process is the traditional sodium chloride roasting process, process technology is simple, investment is low, and there are economic and social advantages. As the use of salt as an additive process, a large number of Cl2、HC1 and other harmful gases were produced in the roasting process, these gases cause serious environmental pollution. For this problem, the domestic and foreign research less. Control various factors in the experiment, to examine the impact of factors on the impact of exhaust gas production.The results show that:HC1 production increased with the increase of NaCl dosage, and Cl2 production reduced with the increase of NaCl dosage; compared with the catalystⅡ, catalystⅠpromotes the decomposition of the NaCl, HC1 and Cl2 production are more; the first absorption stage absorbed HC1 mainly, the second absorption stage absorbed Cl2; with a certain range, time has little effect on the HC1 and Cl2 production; HC1 production will increase with the temperature increases, at (a+70)℃Cl2 production is the largest; HC1 and Cl2 production increased as the gas flow rate decreases. The results can be references for future research.

Related Dissertations

  1. Study on the Preparation Technic and Stability of Peanut Milk,TS275.4
  2. Development of Ru/C Catalysts for Hydrogenation of Glucose to Sorbitol,O643.36
  3. Studies on the Changes of Spoilage Microflora and Preservation Techniques of Roast Chicken,TS251.67
  4. New technology to improve the quality of slag,X758
  5. Effects of High Pressure Treatment on Preservative Properties of Roast Chicken,TS251.67
  6. Develop and Practice on HACCP System of Pork Roast Sausage,TS251.65
  7. Study on the Production of Polycyclic Aromatic Hydrocarbons in "Peking Roast Duck" with Air-jet Impingement Roasting Technique,TS251.67
  8. Titanium concentrates preparation of the new technology of the titanium - rich material,TF823
  9. Study on the Carbochlorination of Baiyunebo Tailings,X754
  10. The Technology of Preparation of Aluminium Sulfate from Coal Fly Ash,X773
  11. The Guizhou Gold Mine gold extraction process,TD953
  12. Research on Separation Technology of Jilin Linjiang Iron-manganese Ore,TD951
  13. Study on Recycling Molybdnum from Minerals Tailings,TD926.4
  14. Comprehensive Utilization of Multiple Metals from Silver-manganese Ore,TD98
  15. New Column Chromatography Application and Research of Diatomite,X703
  16. Stone coal vanadium green technology and energy conservation in key technology research,TF841.3
  17. Carlin- type gold deposit in Guizhou Taipingdong Experimental study of gold,TD953
  18. Studies on Preparation of CdxZn1-XS and Its Photocatalytic Hydrogen Evolution from NaCl Saltwater Using Glucose as an Electron Donor,TQ116.2
  19. Analyses on Faunal Remains from Longshangang Site, in Xichuan County, Henan Province,K878
  20. Synthesis, Intercalation and Luminescence Performances on the New Members of the Layered Rare-Earth Hydroxides Functional Materials,TB34
  21. Analysis of Aroma-active Compounds of Quanjude Roast Duck and Research for Its Gas Chromatographic Fingerprint Diagram,TS251.7

CLC: > Industrial Technology > Metallurgical Industry > Nonferrous metal smelting > Rare metal smelting > Refractory metals smelting ( high - temperature molten metal ) > Vanadium
© 2012 www.DissertationTopic.Net  Mobile