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During the "Eleventh Five-Year Plan" period, China's tire renovation and utilization industry is expected to save over 5 million tons of rubber for the country. This amount represents approximately 30% of the total rubber consumption during the previous "Tenth Five-Year Plan" period. In addition, the industry will save nearly 2 million tons of various resources, including petroleum, carbon black, nylon cords, and steel, with an estimated total value reaching 100 billion yuan. These figures were disclosed at the fifth meeting of the fifth session of the China Tire Renovation Association held on October 24th.
According to reports, the production of used tires in China has been rising rapidly. In 2004 alone, the country produced more than 112 million used tires, ranking second globally. It is projected that by 2010, the number of used tires produced will surpass 200 million. At the same time, China has become the world's largest consumer of rubber for three consecutive years. In 2004, the country consumed 4.35 million tons of rubber, accounting for 22% of global consumption. However, China faces a severe shortage of domestic rubber resources, with over 50% of its rubber needs met through imports. Of this consumption, 60% is used in tire manufacturing. Therefore, the full recycling of used tires plays a crucial role in easing the rubber resource crisis, reducing environmental pollution, and promoting a more sustainable society.
Currently, China employs several methods for recycling used tires, including retreading old tires and producing rubber powder and reclaimed rubber. Retreading significantly reduces the need for raw materials such as rubber, carbon black, and steel cords. For example, replacing one old tire of size 9.00R20 can save 9 kg of rubber, 4 kg of carbon black, 3.4 kg of steel cord, 18 kg of petroleum, and 1.75 kg of steel. Rubber powder and reclaimed rubber can also be partially substituted for natural rubber in new tire production and other industrial applications.
Jiang Zhiyun, president of the China Tire Renovation and Utilization Association, stated that by 2010, the number of tires renovated will increase from 8.5 million this year to 21 million, while the production of rubber powder will rise from 100,000 tons to 1 million tons. The production of reclaimed rubber is expected to grow from 1.25 million tons to 1.4 million tons. Over the five-year period, more than 5 million tons of rubber will be saved, contributing significantly to resource conservation and economic value. When combined with the savings of other critical materials, the overall economic impact could reach up to 100 billion yuan.