The catalytic distillation process for synthesis of dimethyl carbonate(DMC)by urea methanolysis over solid catalyst was simulated by the established non-equilibrium stage model,and the improved tridiagonal matrix method was used to solve the model equations.

Non-equilibrium stage model was developed to simulate catalytic distillation for synthesis of dimethyl carbonate by urea methanolysis.

The catalytic distillation process of the synthesis of dimethyl carbonate(DMC) by urea methanolysis method was investigated by the non-equilibrium model,and the interactions of the operating parameters of this process were analyzed to the actual operation by this model.

Ni-Al hydrotalcite was synthesized by a hydrothermal method utilizing urea hydrolysis with n(Ni2+):n(Al3+):n(urea)=2∶1∶10 and 3∶1∶10.

Synthesis and characterization of a nickel-containing complex and its effect on hydrolysis of urea;

Synthesis,characterization of model compounds of urease and their effects on the hydrolysis of urea;

This paper reports the synthesis and characterization of the nickel-containing complex with a symmetric sixadentate ligand N,N,N',N'-tetrakis(2'-benzimidazolylmethyl)-1, 2-ethanediamine (EDTB),(NO 3) 2·2C 2H 5OH·H 2O,as well as its effect on the hydrolysis of urea.

The relationship of equilibrium constant of urea hydrolysis with temperature was derived.

Aimed to clarify release behavior and urea hydrolysis process of coated urea and hydroquinone fertilizer, two incubation experiments were conducted.

Liquid nitrogen grinding, snailase digestion, urea lysis and ammonium sulfate precipitation methods was established for filamentous fungal proteome analysis.