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ccording to industry statistics show that China's demand for γ-butyrolactone 2005 was 47,000 t, 2005 to 2006, the average annual demand growth of 9.7%, which in 2010 amounted to 75,000 t. But the γ-butyrolactone production has far more than 75,000 t. Experts pointed out that the growing demand for N-methyl pyrrolidone synthetic pharmaceuticals, pesticides, paints and cleaning agents, but with the development of the petrochemical and electronics industries, consumption will continue to grow in the future, domestic consumption will reach 80,000 t / a, annual demand growth rate of 13%, so to promote the rapid growth of the domestic γ-butyrolactone production capacity is normal. However, the domestic production technology and scale to be increased, the new γ-butyrolactone device should also be cautious as well.