According to the introduction of the China Gold Association, in 2011 China's gold industry continued to study and implement the scientific concept of development, promote industrial restructuring, adhere to scientific and technological innovation and technological progress, and showed good performance and development prospects in resource exploration and resource integration. . A group of large-scale gold companies actively explored geological exploration and resource integration, accelerated the integration and development of resources in key gold-producing areas, continuously made breakthroughs in exploration in new areas, and built a number of production bases with scale effects in key metallogenic belts. The implementation of the "going out" strategy has made progress. Technological innovation has become a powerful driving force for the development of the industry. It has been difficult to handle major scientific research projects such as the selection and smelting of gold mineral resources, and has achieved breakthrough results, which has reached the international advanced level. In 2011, China's top gold producers such as China National Gold Group Corporation, Zijin Mining Co., Ltd., Shandong Gold Group Corporation, and Shandong Zhaojin Group Co., Ltd. produced 184.019 tons of gold, accounting for 50.98% of national gold production. The "small and scattered" situation in the gold industry is continuously changing, and the pattern of large gold companies leading the development of the gold industry has been formed.
In 2011, the Chinese gold market traded actively. A total of 7438.463 tons of gold products were traded on the Shanghai Gold Exchange, an increase of 23.03% over the same period of last year. The turnover amounted to 2,477,216 billion yuan, a year-on-year increase of 53.45%. A total of 14,443,520 contracts were traded on the Shanghai** Exchange, a year-on-year increase of 112.59%; the turnover was 5.097607 trillion yuan, an increase of 178.68% year-on-year.
It is understood that in 1949 China's gold production was only 4.07 tons, in 1975 it was 13.8 tons. Since the 1970s, the state has adopted a series of supportive policies for gold production, increased investment in the gold industry, improved technological equipment, and the gold industry has entered the fast track of development. In 1995, China's gold output exceeded 100 tons, reaching 200 tons in 2003 and exceeding 300 tons since 2009. In 2007, China’s gold production surpassed South Africa for the first time, and for the fifth consecutive year in 2011 it has maintained its status as the world’s largest gold producer.
High temperature resistant glass ceramic high temperature resistant glass ceramics is a new material developed with the application of new processes such as sintering and sol-gel methods in the preparation of glass ceramics. When high temperature resistant crystals such as mullite, spinel, garnet are precipitated in the glass ceramic and the content is high, the material can withstand high temperatures. For example, in the garnet glass ceramic, not only the high temperature resistant crystallites but also some mullite crystals are precipitated, and the residual glass phase is surrounded by crystals, which can be used at a high temperature of about 1400 °C.
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