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Complexing method of boron trifluoride methylcarbonate complex

A technology of dimethyl carbonate and boron trifluoride, which is applied in the field of complex compound preparation, can solve the problems affecting the product quality of pharmaceutical companies, the difficulty of selecting materials for production equipment, and the entry of metal ions, so as to overcome equipment corrosion and achieve excellent product quality , the effect of simplifying the production method

Inactive Publication Date: 2006-12-13
哈尔滨广渠经贸有限公司
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Problems solved by technology

The complexing solvent needs to be processed after a period of production, otherwise it will affect the quality of the final product
During the production process, it is difficult to select materials for production equipment, which can easily cause equipment corrosion. Due to equipment corrosion, a large number of metal ions enter the product, affecting the final product quality of pharmaceutical companies

Method used

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  • Complexing method of boron trifluoride methylcarbonate complex
  • Complexing method of boron trifluoride methylcarbonate complex
  • Complexing method of boron trifluoride methylcarbonate complex

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Embodiment Construction

[0018] Process plan one:

[0019] Boron trifluoride gas and dimethyl carbonate mixed spray method:

[0020] combine figure 1 , boron trifluoride gas with a certain pressure enters the jet gas injector, and the power of boron trifluoride gas is used to bring liquid dimethyl carbonate into the jet. The dimethyl carbonate is atomized in the mixer, and the atomized dimethyl carbonate is sprayed into the complexing tower together with boron trifluoride gas, and a solid complex is directly formed in the complexing tower. In this process, the mass ratio of boron trifluoride gas to dimethyl carbonate is 1:0.5—1:1.5; during the complexation process, the complexation tower should be cooled to take away the heat of reaction generated by complexation, and control the temperature of the complexation tower Below 90°C; complexation control pressure 0.03-0.11Mpa (absolute pressure). Glacial acetic acid can be added to the dimethyl carbonate complexing agent, and the mass ratio of dimethyl...

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Abstract

The invention relates the complexing method of boron trifluoride dimethyl carbonate complex compound. The method comprises the following steps: transferring the liquid dimethyl carbonate to gas or spray pattern, adding the dimethyl carbonate and boron trifluoride in the rate of 1: 0.5-1: 1.5 to complex reactor, controlling the temperature below 90Deg.C, carrying out complex reaction, and getting the product. The invention simplifies the preparing method. The invention has the advantages of easy operation and good quality.

Description

(1) Technical field [0001] What the present invention relates to is the preparation method of complex. (2) Background technology [0002] Boron trifluoride dimethyl carbonate complex is mainly used in the production of cephalosporin antibiotics. It changes the situation that the original production process of cephalosporins is dominated by liquid phase reaction, and improves the original product yield by nearly 8 percentage points. [0003] At present, there are two types of production processes of boron trifluoride dimethyl carbonate complex, the "liquid-solid two-phase coexistence process" in which the boron trifluoride dimethyl carbonate complex solid and complexing agent coexist; The "complex solid process" in which the dimethyl borocarbonate complex solid exists alone. [0004] The "liquid-solid two-phase coexistence process" is to directly pass the gas boron trifluoride into the barrel filled with dimethyl carbonate solvent, and complex the products that people need ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/04C07F5/02
Inventor 刘振凡刘广财王崑
Owner 哈尔滨广渠经贸有限公司
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