Research Institute of Nanjing Chemical Industrial Group

Nanjing, China

Research Institute of Nanjing Chemical Industrial Group

Nanjing, China
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Pu Y.,Zhejiang University of Technology | Gao L.,Research Institute of Nanjing Chemical Industrial Group | Liu H.,Zhejiang University of Technology | Yan J.,Zhejiang University of Technology
Synthesis | Year: 2012

An effective catalytic method for α-phosphoryloxylation of ketones is reported. When ketones were reacted with phosphates in the presence of iodobenzene as the recyclable catalyst and m-chloroperbenzoic acid as the terminal oxidant in acetonitrile at room temperature, the α- phosphoryloxylation of ketones took place easily and the corresponding keto phosphates were obtained in moderate to good yields. © Georg Thieme Verlag Stuttgart. New York.


Patent
Sinopec and Research Institute Of Nanjing Chemical Industrial Group | Date: 2014-06-18

A process for preparing methylene bis-(dialkylamino-dithioformate) in one step includes: simultaneously feeding all or part of four raw materials: dialkylamine, an aqueous solution of sodium hydroxide, dichloromethane and carbon disulfide through a constant-flow pump into a continuous flow reactor; performing the reactions in the continuous flow reactor under a temperature of 10 to 100 C. and with a residence time of 10 to 100 s; simply separating of the obtained reaction products to give the final product. The process synthesizes the product in one step by using the continuous flow reactor. The rapid mass transfer and heat transfer in the continuous flow reactor promote the main reaction, reduce side reactions, improve the product color, and shorten the operation time. Moreover, the yield is relatively high and the quality of the final product meets the requirements.


Patent
Sinopec and Research Institute Of Nanjing Chemical Industrial Group | Date: 2014-06-18

A process of removing SO_(2 )from a flue gas with a trickling filter using modified ceramsite packing is described. The biological flue gas desulfurization process includes: feeding the flue gas containing sulfur dioxide through the column bottom into the biomembrane trickling filter at certain temperature, contacting with the modified ceramsite biomembrane packing and purifying, which purified flue gas is discharged via the column top; and spraying the nutrient fluid rich in high concentration of the desulfurization strain through the top to the modified ceramsite biomembrane packing, thereby the sulfur-bearing pollution source in the flue gas is degraded, so as to discharge a purified flue gas satisfying the environmental requirements.


Patent
Sinopec and Research Institute Of Nanjing Chemical Industrial Group | Date: 2014-06-18

An organic amine decarbonization solution includes: i) one or more organic amines serving as a carbon dioxide absorbent; and ii) an antioxidant. The antioxidant includes: a) one or more organometallic complexes of Formula [M_(x)(L)_(y)]A_(n), wherein each M independently represents a central atom selected from the group consisting of transition metals, Group IVA metals and Group VA metals at a lower valence state; each L independently represents a bidentate or multidentate organic ligand with each ligating atom thereof being independently one of O, S, N and P; each A independently represents an uncoordinated counter-ion suitable for forming an outer sphere of a complex; x is 1, 2 or 3; y is 1, 2, 3, 4, 5, 6, 7 or 8; and n is 0, 1, 2, 3 or 4; and b) optionally one or more metal chelating agents.


Mao S.-B.,Research Institute of Nanjing Chemical Industrial Group | Ye N.,Research Institute of Nanjing Chemical Industrial Group | Zhu D.-P.,Research Institute of Nanjing Chemical Industrial Group
Huaxue Gongcheng/Chemical Engineering (China) | Year: 2010

A novel solvent used in the process of CO2 capture from flue gas in coal-fired power plant with low partial pressure was developed based on the molecule simulation and design. The solvent consists of an aqueous solution mainly comprising monoethanolamine (MEA) and a mixture of additives including activated amines, antioxidants and corrosion inhibitors. This formulated solvent was used in the process of pilot plant which was the first CO2 capture plant established in the coal-fired power plant of China Huaneng Group Beijing. The result shows that the purity of CO2 production is 99.5% (volume fraction), the heat duty for CO2 regeneration is 3.5 GJ per ton of CO2, and the loss of solvent is less than 1.5 kg per ton of CO2. The plant established and the indexes tested lay the foundation for CO2 capture in coal-fired power plants in China.


Jiang Y.,CAS Institute of Process Engineering | Jiang Y.,Research Institute of Nanjing Chemical Industrial Group | Guo C.,CAS Institute of Process Engineering | Gao H.,CAS Institute of Process Engineering | And 4 more authors.
AIChE Journal | Year: 2012

Ester hydrolysis at oil-water interface by lipase covalently immobilized on ionic liquid-modified magnetic nanoparticles was investigated. Magnetic supports with a diameter of 10-15 nm were synthesized by covalent binding of ionic liquids (chain length C 4 and C 8 and anions Cl -, BF 4 -, and PF 6 -) on the surface of Fe 3O 4 nanoparticles. Lipase was covalently immobilized on Fe 3O 4 nanoparticles using ionic liquids as the coupling reagent. Ionic liquid-modified magnetic nanoparticle-grafted lipase preferentially located at the oil-water interface. It has higher catalytic activity than its native counterpart. A modified Michaelis-Menten model was used to elucidate the effect of stirring rate, aqueous-organic phase ratio, total amount of enzyme, and ester chain length. The influences of these conditions on esters hydrolysis at oil-water interface were consistent with the introduction of the ionic liquids interlayer. Ionic liquids could be used to control the oil-water interfacial characteristics during lipase catalyzed hydrolysis, and thus control the behavior of immobilized lipase. © 2011 American Institute of Chemical Engineers (AIChE).


Patent
Research Institute Of Nanjing Chemical Industrial Group and Shanghai Huachang Environmental Protection Co. | Date: 2011-08-25

Provided are a method and an apparatus for micro-hydrocyclone purification for a flue gas carbon dioxide capture system. The method comprises: performing gas-liquid micro-hydrocylone separation with ultralow pressure drop on scrubbed flue gas, to remove aerosol particulates entrained in the flue gas; performing gas-liquid micro hydrocyclone separation with ultralowpressure drop on off-gas vented from the top of an absorption column, to remove entrained aerosol particulates; performing gas-liquid micro hydrocyclone separation with ultralow pressure drop on cooled regeneration gas, to remove entrained aerosol particulates; and performing liquid-solid and liquid-liquid two-stage micro-hydrocyclone separation on a mixed amine solution lean for carbon dioxide discharged from regeneration column, to remove entrained solid particulates and machine oil. The apparatus comprises: a water scrubbing column, rotation flow separators, liquid-solid micro-hydrocyclone separator sets, a water scrubbing tank, a absorption column, a regeneration column, liquid-solid micro-hydrocyclones and liquid-liquid micro-hydrocyclones.


Gao L.,Research Institute of Nanjing Chemical Industrial Group | Li L.,Zhejiang Shuren University | Zhu M.,Zhejiang Shuren University
Synthesis and Reactivity in Inorganic, Metal-Organic and Nano-Metal Chemistry | Year: 2011

Fast and convenient reactions were investigated under microwave and ultrasound irradiation, providing simple methods for sulfonyloxylactonization of alkenoic acids in good yields in a short time. Copyright © Taylor & Francis Group, LLC.

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