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Current Issue
1993 Vol.10 Issue.1,
Published 1993-01-15
Article
Article
1
The Spray Shaping of Catalyst for the Oxidation of n-Butane to Maleic Anhydride in Fluidized-bed
Xu Genhui Zhang Fuzhi Chen Hongfang
The study on shape out catalytic particle for the oxidation of n-butane to maleic anhydride in fluidized-bed was carri(?)d out. Among various types of adhesive and under different spraying conditions, the catalysts with different particle size and size distributions for fluidized-bed were obtained The effects of spraying conditions on catalytic reaction activity, and thereof the change reqularity were studied by using the method of orthogonal experimental design At the same time the optimum procedure of spray shaping was decided. It was found that when the particle size of catalyst is in the range of 20-200μm and the mean particle diameter is about 70—80μm, best result of catalytic oxidation of n-butane in fluid-bed was obtained.
1993 Vol. 10 (1): 1-6 [
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1592
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7
A Model for the Off-line Optimization of Operation Parameters for the Extractive Distillation Process of Butadiene
Zhou Aiyue Li Zhihong Zhang Hua
A new model of the optimum conditions for the extractive distillation column of butadiene by using DMF as solvent has been proposed in this paper. The optimum decision variables (solvent/C_4, recycle gas/C_4, Reflux ratio, distillates) have been obtained by flexible tolerance algorithm under 27 different burdens of three key components in the feed C_4。 The three-dimensional Lagrange interpolation polynomials have been respectively correlated with each. optimum operation parameters. The softwares of optimum operation conditions for arbitrary proportions of three key components in the feed C_4 have been provided for production Comparing with the primary producing conditions the results calculated using optimal model can save energy consumption about 5～14 percent.
1993 Vol. 10 (1): 7-15 [
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1718
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16
The Development In Packed Tower Research
Mai Benxi
The development in packed tower research till the end of 1991 is briefly reviewed with certain accent to recent investigation and domestic works. The present status of research and results in correlation about the performance of packed bed are presented. With respect to mass transfer, not only important results are included but also the probable cause of wide deviation in correlations by different authors is discussed in some detail
1993 Vol. 10 (1): 16-27 [
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1974
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28
The Reaction of Selective Phosphorylation (Phosphonylation, Phosphinylation) of Bifunctional Compounds
Li Yugui Bao Rong Zhu Xuefeng
This paper described the reaction of selective phosphorylation (phosphonylation, phosphinylation) of ethanolamine and analogues. The reaction mechanism and the physical and chemical propertise of the products were also discussed in detail.
1993 Vol. 10 (1): 28-41 [
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1834
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8
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42
1993 Vol. 10 (1): 42-45 [
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1644
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6
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46
1993 Vol. 10 (1): 46-50 [
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1704
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5
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51
1993 Vol. 10 (1): 51-55 [
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1425
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6
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56
1993 Vol. 10 (1): 56-59 [
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2181
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6
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60
1993 Vol. 10 (1): 60-61 [
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1404
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6
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61
1993 Vol. 10 (1): 61-61 [
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1321
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1993 Vol. 10 (1): 61-61 [
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1247
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62
1993 Vol. 10 (1): 62-62 [
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1362
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5
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63
1993 Vol. 10 (1): 63-63 [
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1292
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6
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