Vanadium - bearing stone coal is a new resource of vanadium. V in stone coal mainly exists in three oxidation states: 7.84% V(III), 72.08% V(IV) and 20.08% V(V). The change and distribution of valency during oxidizing...Vanadium - bearing stone coal is a new resource of vanadium. V in stone coal mainly exists in three oxidation states: 7.84% V(III), 72.08% V(IV) and 20.08% V(V). The change and distribution of valency during oxidizing roasting shows that organic matter in the coal determines the valency at low temperatures. At about 450°C, V(III) is completely oxidized to V(IV); above 500°C, temperature is the most important factor for the oxidation of V. At 700-1000°C, 92% of V in the coal has been oxidized to V(V). At higher temperature, no more oxidation of V takes place, equilibrium being established. The role of NaCl in the recovery of V2O5 from the coal is discussed. The best conditions for roasting are an oxidation-chlorination atmosphere, temperature 800°C for 30 minutes, ore:NaCl = 100:10, ηroast reaching 90%.展开更多
Over the past seven decades since the founding of the People's Republic of China in 1949,China's industrial structure has experienced transformations in various stages,which is consistent with the general patt...Over the past seven decades since the founding of the People's Republic of China in 1949,China's industrial structure has experienced transformations in various stages,which is consistent with the general pattern of industrialization and China's domestic and international situations.These changes also have to do with China's reforms in building the socialist market economic system.China's seven-decade industrial structural transformation offers valuable experiences:In promoting its industrial development,China has persistently carried out economic reforms,kept pace with changing factor and demand structures,invested in technology importation and innovation,leveraged global resources and markets,and formulated development policies in line with specific industrial development stages.Despite industrial structural problems,China has set the stage for innovation-driven development,further opening up,and balanced regional development.China's industrial structure will keep evolving amid its transition toward a competitive industrial nation.展开更多
Over the past 70 years since the founding of the People’s Republic of China,great changes have been seen in the financial industry in terms of its nature,function,scale,structure and other features.It has experienced...Over the past 70 years since the founding of the People’s Republic of China,great changes have been seen in the financial industry in terms of its nature,function,scale,structure and other features.It has experienced six stages of development,namely,inception and consolidation,arduous growth,exploration and restructuring,segmentation,fictitious economy orientation,and real economy promotion and risk prevention.The tremendous success and useful experience made during this period have largely bolstered the prosperity and stability of the Chinese economy,improved Chinese people’s living standards,and exerted a profound impact on China’s economy and society.Based on its development pattern,the Chinese financial sector will expect further openingup at home and abroad and a growing capacity in serving the real economy,while new business forms and models will emerge rapidly and stronger preventive measures against financial risks will be needed.In response to the financial development in the new era,proactive and pragmatic measures need to be in place to safeguard the stable and sound development of the financial industry.展开更多
This article aims to analyze the so-called“starting point”when modern scientific and technological successes in China were in their infancy,and to provide the reader with insight on how various challenges were overc...This article aims to analyze the so-called“starting point”when modern scientific and technological successes in China were in their infancy,and to provide the reader with insight on how various challenges were overcome in their development.The period under review is 1949–1955.The information about this period was obtained from Soviet archives and special literature.The first part of the article describes the state of affairs in the People’s Republic of China(PRC)in the early years of its formation,focusing on education,science,industry(including military),communications,and rail transport.The second part turns to the Soviet specialists working in the PRC during these years,focusing on their profession,number,cities of residence and living conditions.Issues regarding Chinese specialists’internship in the Union of Soviet Socialist Republics(USSR)are also touched upon.The article selects several lesserknown areas in which professional competencies were established in this very weak post-war country to discover the origins of the most important science and technology in the contemporary PRC,thereby contributing to readers’understanding of the initial conditions for the development of science and technology in China.展开更多
AS early as in the 1940s, Mao Zedong began to emphasize the importance of developing industries, pointing out that industrialization should take top priority for China after the fall of imperialism, feudalism, and bur...AS early as in the 1940s, Mao Zedong began to emphasize the importance of developing industries, pointing out that industrialization should take top priority for China after the fall of imperialism, feudalism, and bureaucrat-capitalism. He envisioned the nascent People’s Republic of China (PRC) transformed from a country with an underdeveloped agriculture based economy into an advanced industrial country with an independent and complete industrial system.展开更多
文摘Vanadium - bearing stone coal is a new resource of vanadium. V in stone coal mainly exists in three oxidation states: 7.84% V(III), 72.08% V(IV) and 20.08% V(V). The change and distribution of valency during oxidizing roasting shows that organic matter in the coal determines the valency at low temperatures. At about 450°C, V(III) is completely oxidized to V(IV); above 500°C, temperature is the most important factor for the oxidation of V. At 700-1000°C, 92% of V in the coal has been oxidized to V(V). At higher temperature, no more oxidation of V takes place, equilibrium being established. The role of NaCl in the recovery of V2O5 from the coal is discussed. The best conditions for roasting are an oxidation-chlorination atmosphere, temperature 800°C for 30 minutes, ore:NaCl = 100:10, ηroast reaching 90%.
文摘Over the past seven decades since the founding of the People's Republic of China in 1949,China's industrial structure has experienced transformations in various stages,which is consistent with the general pattern of industrialization and China's domestic and international situations.These changes also have to do with China's reforms in building the socialist market economic system.China's seven-decade industrial structural transformation offers valuable experiences:In promoting its industrial development,China has persistently carried out economic reforms,kept pace with changing factor and demand structures,invested in technology importation and innovation,leveraged global resources and markets,and formulated development policies in line with specific industrial development stages.Despite industrial structural problems,China has set the stage for innovation-driven development,further opening up,and balanced regional development.China's industrial structure will keep evolving amid its transition toward a competitive industrial nation.
文摘Over the past 70 years since the founding of the People’s Republic of China,great changes have been seen in the financial industry in terms of its nature,function,scale,structure and other features.It has experienced six stages of development,namely,inception and consolidation,arduous growth,exploration and restructuring,segmentation,fictitious economy orientation,and real economy promotion and risk prevention.The tremendous success and useful experience made during this period have largely bolstered the prosperity and stability of the Chinese economy,improved Chinese people’s living standards,and exerted a profound impact on China’s economy and society.Based on its development pattern,the Chinese financial sector will expect further openingup at home and abroad and a growing capacity in serving the real economy,while new business forms and models will emerge rapidly and stronger preventive measures against financial risks will be needed.In response to the financial development in the new era,proactive and pragmatic measures need to be in place to safeguard the stable and sound development of the financial industry.
文摘This article aims to analyze the so-called“starting point”when modern scientific and technological successes in China were in their infancy,and to provide the reader with insight on how various challenges were overcome in their development.The period under review is 1949–1955.The information about this period was obtained from Soviet archives and special literature.The first part of the article describes the state of affairs in the People’s Republic of China(PRC)in the early years of its formation,focusing on education,science,industry(including military),communications,and rail transport.The second part turns to the Soviet specialists working in the PRC during these years,focusing on their profession,number,cities of residence and living conditions.Issues regarding Chinese specialists’internship in the Union of Soviet Socialist Republics(USSR)are also touched upon.The article selects several lesserknown areas in which professional competencies were established in this very weak post-war country to discover the origins of the most important science and technology in the contemporary PRC,thereby contributing to readers’understanding of the initial conditions for the development of science and technology in China.
文摘AS early as in the 1940s, Mao Zedong began to emphasize the importance of developing industries, pointing out that industrialization should take top priority for China after the fall of imperialism, feudalism, and bureaucrat-capitalism. He envisioned the nascent People’s Republic of China (PRC) transformed from a country with an underdeveloped agriculture based economy into an advanced industrial country with an independent and complete industrial system.
