scholarly journals Promote Technological Innovation in Nitrogen Fertilizer Industry and Promote Agricultural Green Ecological Development—Patent Brief of “A Synthetic Oxalic Acid Continuous Process”

2018 ◽  
Vol 08 (02) ◽  
pp. 127-126
Author(s):  
贻盾 陈
Keyword(s):  
Oxalic Acid ◽  
Technological Innovation ◽  
Nitrogen Fertilizer ◽  
Continuous Process ◽  
Fertilizer Industry ◽  
Ecological Development

THE PREPARATION OF BIS-NITROXYETHYLNITROÖXAMIDE

1948 ◽  
Vol 26b (4) ◽  
pp. 401-414 ◽  
Author(s):  
R. S. Stuart ◽  
George F. Wright
Keyword(s):  
Oxalic Acid ◽  
High Explosive ◽  
Health Hazard ◽  
Continuous Process ◽  
Decomposition Products ◽  
Economical Method ◽  
Acetone Water ◽  
Crude Product ◽  
Water Crystallization ◽  
Industrial Health

An economical method is described for preparation of the explosive bis-nitroxyethylnitroöxamide from oxalic acid and monoethanolamine. Yields over 80% of theoretical may be obtained from bis-hydroxyethyloxamide by either batch or continuous process. The crude product must be purified before use by acetone-water crystallization. The formation of this explosive is found to be inhibited by nitrosylsulphuric acid which limits the nitration to the bis-nitroxyethyloxamide stage. The complete reaction is thought to proceed via this intermediate by a nonreversible nitration and then to decompose reversibly, if allowed to proceed too long, to bis-hydroxyethylnitroöxamide. There is some evidence that the explosive is stabilized by its decomposition products. The use of this high explosive does not present the industrial health hazard caused by tetryl, with which it is comparable in power and brisance. Furthermore, it has the advantage over tetryl that it can be melted and poured. The solidified melt is unique among explosives because it is free from gross cavities.

scholarly journals Potential utilization of waste nitrogen fertilizer from a fertilizer industry using marine microalgae

2021 ◽  
Vol 755 ◽  
pp. 142532
Author(s):  
Hareb Al-Jabri ◽  
Probir Das ◽  
Mahmoud Thaher ◽  
Shoyeb Khan ◽  
Mohammad AbdulQuadir
Keyword(s):  
Nitrogen Fertilizer ◽  
Marine Microalgae ◽  
Fertilizer Industry

scholarly journals Low cost nanoparticles derived from nitrogen fertilizer industry waste for the remediation of copper contaminated soil and water

2020 ◽  
Vol 25 (6) ◽  
pp. 930-937 ◽  
Author(s):  
Elsayed Elkhatib ◽  
Mohamed Moharem ◽  
Ayman Mahmoud
Keyword(s):  
Nitrogen Fertilizer ◽  
Management Practice ◽  
Low Cost ◽  
Ftir Spectra ◽  
Industry Waste ◽  
Best Management ◽  
Fertilizer Industry ◽  
Before And After ◽  
Equilibrium And Kinetics ◽  
Copper Contaminated

The goal of this study was to produce a novel nano-scale material from nitrogen fertilizer industry byproduct (nNFIB) and assess its capability to remediate Cu contaminated wastewater and soil. The novel nNFIB was produced using planetary mono mill and characterized. Equilibrium and kinetics studies of Cu sorption by nNFIB were performed in batch system. The effects of a variety of factors, including pH, coexisting ions and adsorption time on Cu adsorption were investigated. Furthermore, Cu sequestration mechanism onto nNFIB was investigated using sequential extraction technique and Fourier transform infrared (FTIR) spectra before and after nNFIB adsorption. The Cu sorption equilibrium and kinetics data were successfully described by Langmuir and first-order models, respectively. The calculated maximum Cu(II) adsorption capacity (qmax) of nNFIB (100 mg g−1) was four times higher than qmax of bulk NFIB. Copper removal by nNFIB was quite fast (around 86%) in the first 5 min and gradually slowed down until achieved 100% removal at equilibrium time. The FTIR spectra and Cu fractionation data in biosolid-amended soil demonstrated that Cu sequestration in contaminated water and soil is strongly related to CaCO3 of nNFIB. The overall findings show the potential use of nNFIB as a best management practice for Cu removal from wastewater and Cu stabilization in contaminated biosolid-amended soils.

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