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Raje S, Mani K, Kandasamy P, Butcher RJ, Angamuthu R. Bioinspired Oxidative Cleavage of Aliphatic C–C Bonds Utilizing Aerial Oxygen by Nickel Acireductone Dioxygenase Mimics. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sakthi Raje
- Laboratory of Inorganic Synthesis and Bioinspired Catalysis (LISBIC) Department of Chemistry Indian Institute of Technology Kanpur 208016 Kanpur India
| | - Kalaikodikumaran Mani
- Laboratory of Inorganic Synthesis and Bioinspired Catalysis (LISBIC) Department of Chemistry Indian Institute of Technology Kanpur 208016 Kanpur India
| | - Parameswaran Kandasamy
- Laboratory of Inorganic Synthesis and Bioinspired Catalysis (LISBIC) Department of Chemistry Indian Institute of Technology Kanpur 208016 Kanpur India
| | - Ray J. Butcher
- Department of Chemistry Howard University 20059 Washington, D.C. United States
| | - Raja Angamuthu
- Laboratory of Inorganic Synthesis and Bioinspired Catalysis (LISBIC) Department of Chemistry Indian Institute of Technology Kanpur 208016 Kanpur India
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Guo Y, Zhang M, Liu Z, Tian X, Zhang S, Zhao C, Lu H. Modeling and Optimizing the Synthesis of Urea-formaldehyde Fertilizers and Analyses of Factors Affecting these Processes. Sci Rep 2018. [PMID: 29540771 PMCID: PMC5852125 DOI: 10.1038/s41598-018-22698-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Previous research into the synthesis of urea-formaldehyde fertilizers was mostly based on orthogonal experimental designs or single factor tests; this led to low precision for synthesis and relatively large ranges of parameters for these processes. To obtain mathematical response models for the synthesis of urea-formaldehyde fertilizers with different nitrogen release properties, a central composite design (CCD) of response surface methodology was used in our research to examine the effects of different reaction times, temperatures, and molar ratios on nitrogen insoluble in either hot or cold water. Our results showed that nitrogen insoluble in cold or hot water from urea-formaldehyde fertilizers were mainly affected by urea: formaldehyde molar ratios. Also, quadratic polynomial mathematical models were established for urea-formaldehyde. According to the models, the optimal process parameters which maximize cold-water-insoluble nitrogen and minimize hot-water-insoluble nitrogen for the synthesis of urea formaldehyde were as follows urea: formaldehyde molar ratio was 1.33, reaction temperature was 43.5 °C, and reaction time was 1.64 h. Under these conditions, the content of cold-water-insoluble nitrogen was 22.14%, and hot-water-insoluble nitrogen was 9.87%. The model could be an effective tool for predicting properties of urea-formaldehyde slow release fertilizers if the experimental conditions were held within the design limits.
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Affiliation(s)
- Yanle Guo
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian, Shandong, 271018, China
| | - Min Zhang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian, Shandong, 271018, China. .,State Key Laboratory of Nutrition Resources Integrated Utilization, Kingenta Ecological Engineering Group Co., Ltd., Linshu, 276700, China.
| | - Zhiguang Liu
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian, Shandong, 271018, China.
| | - Xiaofei Tian
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian, Shandong, 271018, China
| | - Shugang Zhang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian, Shandong, 271018, China
| | - Chenhao Zhao
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian, Shandong, 271018, China
| | - Hao Lu
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian, Shandong, 271018, China
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Wackerow-Kouzova ND. Ochrobactrum intermedium ANKI, a nitrogen-fixing bacterium able to decolorize azobenzene. APPL BIOCHEM MICRO+ 2007. [DOI: 10.1134/s0003683807040084] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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