Results 21 to 30 of about 2,853 (179)
Development of a technology for obtaining manganese from waste
Литьë и металлургияIn this work, the optimal conditions for the extraction of manganese from manganese-containing slags by sulfuric acid leaching were studied. Studies have shown that adding iron powder and iron sulfate to the reaction mixture increases manganese ...
S. T. Parmonov +2 more
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Design of Continuous Crystallizer with Fines Removal for Melt Crystallization of Caprolactam
Chemical Engineering Transactions, 2013 A method of designing a new type continuous crystallizer with fines removal for the suspension melt crystallization of caprolactam is presented. The crystallizer enables one to obtain crystals with a relatively large average size.
S. Misztal
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Effects of Caprolactam Wastewater on Algal Growth and Nutrients Removal by Arthrospira platensis
Applied Sciences, 2021 Caprolactam wastewater (WCP), which is generated during the production of caprolactam, contains high contents of NO3− and inorganic P and is considered to be difficult to treat.
Youzhi Yu +8 more
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Pressure-Induced Polymorphism of Caprolactam: A Neutron Diffraction Study
Molecules, 2019 Caprolactam, a precursor to nylon-6 has been investigated as part of our studies into the polymerization of materials at high pressure. Single-crystal X-ray and neutron powder diffraction data have been used to explore the high-pressure phase behavior of
Ian B. Hutchison +4 more
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Вестник Мининского университета, 2017 The article discusses the environmental problems of waste disposal on the tailings pond, "White sea" of "Kaprolaktam" plant, OJSC "SIBUR-Neftekhim", Dzerzhinsk, Nizhny Novgorod region. Currently there is a need for the elimination of the White sea slurry
O. N. Volkova
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The Canadian Journal of Chemical Engineering, EarlyView.Abstract This study examines the microwave‐assisted catalytic pyrolysis (MACP) of individual and blended textiles (cotton, polyester, nylon 6) using ZnO and a ZnO/natural zeolite catalyst. In a custom‐built microwave reactor operated at 500°C, 1 kW power, and a 15‐min residence time, textile wastes were pyrolyzed.
Peyman Alizadeh +3 more
wiley +1 more source
p-Nitrophenyl carbonate promoted ring-opening reactions of DBU and DBN affording lactam carbamates
Beilstein Journal of Organic Chemistry, 2016 The amidine bases DBU (1,8-diazabicyclo[5.4.0]undec-7-ene) and DBN (1,5-diazabicyclo[4.3.0]non-5-ene) display nucleophilic behaviour towards highly electrophilic p-nitrophenyl carbonate derivatives with ring opening of the bicyclic ring to form ...
Madhuri Vangala, Ganesh P Shinde
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Thermoplastic‐Resin Transfer Molding Technology: Development and Challenges Toward Industrialization
Polymer Composites, EarlyView.Illustration of the key aspects involved in the manufacture of thermoplastic composites by T‐RTM highlighting the relationships between raw materials, resin mixing strategies, polymerization parameters, and processing equipment ranging from laboratory to industrial scale. ABSTRACT Driven by increasingly stringent international environmental regulations,
Filipe P. Martins +4 more
wiley +1 more source
Amphiphilic Block Copolymers with Vinyl Caprolactam as Kinetic Gas Hydrate Inhibitors
Energies, 2021 Macrosurfactants consisting of water-soluble poly(vinylcaprolactam) (PVCap) or poly(vinylpyrrolidone) (PVP) segments with comparatively shorter hydrophobic poly(styrene) (PS) or poly(2,3,4,5,6-pentafluorostyrene) (PPFS) segments were used as kinetic ...
Faraz Rajput +2 more
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Polymer Composites, EarlyView.Comparison of powder impregnation and hybrid commingled non‐wovens for PA6/rCF nonwoven composites. The two‐step powder route gives lower voids and higher properties, while the single‐step hybrid route is limited by precursor inhomogeneity and high void content.
Gaia Francesca Lupia +4 more
wiley +1 more source