Before the 1950s, the development of magnesium was dependent on the military industry. After the 1960s, the application of metallic magnesium in the civil market and space technology was developed, which promoted the balanced growth of magnesium. In recent years, with the growth of magnesium alloy applications in transportation, electronics and communications, the world's magnesium consumption has increased year by year and has grown rapidly. There are 10 countries in the world (except China), namely the United States, Canada, Norway, Russia, France, Italy, the former Yugoslavia, Brazil, India, and North Korea that produce magnesium metal. In 2004, the world's mining volume of magnesium metal was 584,000 tons, of which China was 426,000 tons, Canada was 54,000 tons, Russia was 50,000 tons, Israel was 28,000 tons, and Kazakhstan was 18,000 tons.
Since the 1990s, the market economy has stimulated the development of China's magnesium industry. In the 10 years of the 1990s, China's primary magnesium output increased by 37 times, especially from 1995 to 2000, the average annual growth rate was 15.84%, much higher than the growth rate of the Western world. China has become the world's largest producer and exporter of primary magnesium.
From January to December 2006, the country’s total production of magnesium metal was 61,3084.94 tons, a year-on-year increase of 32.23%; from January to December 2007, the country’s total production of magnesium metal was 670,130.87 tons, a year-on-year increase of 24.12%; from January to October 2008, the country’s total production of magnesium metal was 539498.36 Tons, an increase of 6.59% year-on-year.
In mild magnesium deficiency, magnesium can be supplemented by diet or oral administration, magnesium oxide or magnesium hydroxide can be given, and aluminum hydroxide gel can be used in combination to avoid diarrhea. When oral administration cannot tolerate or cannot be absorbed, intramuscular injection of magnesium can be used, generally 20% to 50% magnesium sulfate. It is necessary to pay attention to the occurrence of acute magnesium poisoning when giving magnesium intravenously to avoid cardiac arrest. Therefore, avoid giving too much or too fast magnesium. In case of magnesium poisoning, inject calcium gluconate or calcium chloride to combat it.
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