Spanish CEPSA will build a phenol/acetone plant at Caojing,Shanghai, eastern China, following the approval by the NationalDevelopment and Reform Commission, China’s topplanner.The plant is designed to produce 250 tho...Spanish CEPSA will build a phenol/acetone plant at Caojing,Shanghai, eastern China, following the approval by the NationalDevelopment and Reform Commission, China’s topplanner.The plant is designed to produce 250 thousand tons of phenoland 150 thousand tons of acetone per year, to meet demandin the Chinese market.At Caojing Bayer’s integrated site, Bayer MaterialSciencehas doubled its 100 000 t/a polycarbonate (PC) facility to 200000 t/a since early 2010.(CCR2008 No.24)展开更多
A one-step process to introduce both the aromatic and aliphatic primary amino groups with high chemoselectivity was developed. Triplet state acetone abstracts the hydrogen atoms from both the C--H bond of the polymeri...A one-step process to introduce both the aromatic and aliphatic primary amino groups with high chemoselectivity was developed. Triplet state acetone abstracts the hydrogen atoms from both the C--H bond of the polymeric film substrate and the O--H bond of phenol which is the building block and the amino group carrier. As a result, two kinds of free radicals, confined carbon-centered chain radicals of the polymer substrate and mobile oxygen-centered phenoxy radicals, were generated. Then the C--O bonds were formed by the coupling reaction between these two kinds of free radicals, p-Tyrarnine and p-aminophenol were used as amino carriers. The successful introduction of amino groups onto LDPE, BOPP and PET film substrates was demonstrated by measurements of water contract angle （CA）, ultraviolet spectra （UV）, X-ray photoelectron spectroscopy （XPS） and fluorescent microscopy. The processing factors, such as the UV-light intensity and irradiation time, concentrations of p-tyramine and p-aminophenol, and the ratio of acetone/water were investigated. The optimized process parameters are as follows： UV light intensity 9500 ~tW/cm2; irradiation time 18 min for BOPP and LDPE, 22 min for PET; the ratio of acetone/water = 1; and concentration ofp-tyramine and p-aminophenol 15% for BOPP and LDPE, 1% for PET. Based on the UV absorbance, the amino groups on the polymeric substrates were estimated to be in the range of 6.3 × 10-6-9.5 × 10-6 mmol/mm2.展开更多
Supply and demandin China1.Production The total output of phenol in China was 545500 tons in 2007,an increase of 5.2% over 2006.Several phenol/acetone producers have
文摘Spanish CEPSA will build a phenol/acetone plant at Caojing,Shanghai, eastern China, following the approval by the NationalDevelopment and Reform Commission, China’s topplanner.The plant is designed to produce 250 thousand tons of phenoland 150 thousand tons of acetone per year, to meet demandin the Chinese market.At Caojing Bayer’s integrated site, Bayer MaterialSciencehas doubled its 100 000 t/a polycarbonate (PC) facility to 200000 t/a since early 2010.(CCR2008 No.24)
基金financially supported by Chinese Universities Scientific Fund(No.ZD0902)the National High Technology Research and Development Program(No.863 Program 2009AA03Z325)
文摘A one-step process to introduce both the aromatic and aliphatic primary amino groups with high chemoselectivity was developed. Triplet state acetone abstracts the hydrogen atoms from both the C--H bond of the polymeric film substrate and the O--H bond of phenol which is the building block and the amino group carrier. As a result, two kinds of free radicals, confined carbon-centered chain radicals of the polymer substrate and mobile oxygen-centered phenoxy radicals, were generated. Then the C--O bonds were formed by the coupling reaction between these two kinds of free radicals, p-Tyrarnine and p-aminophenol were used as amino carriers. The successful introduction of amino groups onto LDPE, BOPP and PET film substrates was demonstrated by measurements of water contract angle （CA）, ultraviolet spectra （UV）, X-ray photoelectron spectroscopy （XPS） and fluorescent microscopy. The processing factors, such as the UV-light intensity and irradiation time, concentrations of p-tyramine and p-aminophenol, and the ratio of acetone/water were investigated. The optimized process parameters are as follows： UV light intensity 9500 ~tW/cm2; irradiation time 18 min for BOPP and LDPE, 22 min for PET; the ratio of acetone/water = 1; and concentration ofp-tyramine and p-aminophenol 15% for BOPP and LDPE, 1% for PET. Based on the UV absorbance, the amino groups on the polymeric substrates were estimated to be in the range of 6.3 × 10-6-9.5 × 10-6 mmol/mm2.
文摘Supply and demandin China1.Production The total output of phenol in China was 545500 tons in 2007,an increase of 5.2% over 2006.Several phenol/acetone producers have
