2, 3, 3', 4, 4', 5'-hexahydroxy benzophenone bismuth (III) and copper (II) binuclear complex and preparation method thereof

A kind of hexahydroxybenzophenone bismuth, hexahydroxybenzophenone technology, applied in 2,3,3',4,4',5'-hexahydroxybenzophenone bismuth (III) copper (II) In the field of binuclear complex and its preparation, it can solve problems such as harm and toxicity of lead compounds, and achieve high catalytic effect.

Inactive Publication Date: 2010-09-01
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, lead compounds are toxic to the human body, leaving direct and indirect harm to the staff and the env

Method used

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  • 2, 3, 3', 4, 4', 5'-hexahydroxy benzophenone bismuth (III) and copper (II) binuclear complex and preparation method thereof
  • 2, 3, 3', 4, 4', 5'-hexahydroxy benzophenone bismuth (III) and copper (II) binuclear complex and preparation method thereof
  • 2, 3, 3', 4, 4', 5'-hexahydroxy benzophenone bismuth (III) and copper (II) binuclear complex and preparation method thereof

Examples

Experimental program
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Example Embodiment

[0016] Example 1

[0017] (1) In a three-necked flask equipped with a stirrer and an HCl absorption system, add 3.38 g gallic acid, 3.78 g pyrogallic acid, and 5 g anhydrous ZnCl 2 And 6ml POCl 3 , And then add 3ml sulfolane.

[0018] (2) Start stirring to make it evenly mixed, heat to 70°C, and react at constant temperature for 2.5 hours.

[0019] (3) Slowly add water to the reaction flask and stir until all is dissolved, then pour into 300ml of ice water and stir thoroughly. The above solution was allowed to stand still for 30 minutes, filtered under normal pressure, and washed with water to obtain a crude product.

[0020] (4) Heat and dissolve the crude product in 200ml water, add activated carbon treatment, heat filtration, cooling, suction filtration, washing, drying, to prepare 2,3,3',4,4',5'-hexahydroxybenzyl The ketone is a green-yellow needle-like crystal with a melting point of 277.9-278.5°C and a yield of 68.5%. The product uses FTIR spectrum and 1 HNMR spectrum to anal...

Example Embodiment

[0024] Example 2

[0025] The basic formula of the modified double-base propellant is: 66% of the double-base adhesive, 26% of RDX (RDX), No. 2 medium-sized agent (C 2 ) 2.0%, other additives 6%. The samples were prepared according to the conventional solvent-free stretch forming process of absorption, flooding, ripening, calendering, and cutting into medicine strips. The medicinal material is mixed according to 500g, the catalyst is an external amount, and the added amount is 3.0%; the control blank propellant sample does not contain the catalyst.

[0026] The burning rate is measured by the target line method. The side of the treated Φ5×150mm small grains were immersed and coated with polyvinyl alcohol solution for 6 times and dried, and then the burning rate was tested in a nitrogen-filled slow-moving burning rate meter. The test temperature is 20°C, and the pressure range is 2MPa~22MPa.

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Abstract

The invention discloses a 2, 3, 3', 4, 4', 5'-hexahydroxy benzophenone bismuth (III) and copper (II) binuclear complex and a preparation method thereof. The components of the 2, 3, 3', 4, 4', 5'-hexahydroxy benzophenone bismuth (III) and copper (II) binuclear complex are Cu2+, Bi3+ and 2, 3, 3', 4, 4', 5'-hexahydroxy benzophenone, and the weight proportions are as follows: 33-40 percent of Cu2+ and Bi3+ (wherein 6-23 percent of Cu2+ and 77-94 percent of Bi3+) and 60-67 percent of the 2, 3, 3', 4, 4', 5'-hexahydroxy benzophenone. The preparation method is as follows: taking gallic acid, pyrogallic acid and POC13 as raw materials, taking anhydrous ZnCl2 as catalyst and reacting under heating and stirring to obtain the 2, 3, 3', 4, 4', 5'-pentahydroxy benzophenone. The 2, 3, 3', 4, 4', 5'-hexahydroxy benzophenone is mixed with soluble copper salt and bismuth salt solution, and then the product is prepared after the working procedures of stirring, heating reflux, standing, washing, filtering and the like. As combustion catalyst, the prepared 2, 3, 3', 4, 4', 5'-hexahydroxy benzophenone bismuth (III) and copper (II) binuclear complex has very high catalytic effect for combustion of double-base or modified double-base propellant and is environmental-friendly high-efficient combustion catalyst.

Description

technical field [0001] The invention relates to a 2,3,3',4,4',5'-hexahydroxybenzophenone bismuth (III) copper (II) dinuclear complex (abbreviated as: HPBC) and a preparation method thereof. 2,3,3',4,4',5'-hexahydroxybenzophenone bismuth (III) copper (II) dinuclear complexes can be used as combustion catalysts for diradical propellants. technical background [0002] Double-base propellants and modified double-base propellants are a class of high-energy fuels used in rockets and missiles. However, the disadvantages of double-base propellants are low burning rate and high pressure index, which need to be adjusted by adding combustion catalysts. At present, the combustion catalysts used in double-base propellants are mainly lead compounds. The addition of lead compounds can not only increase the propellant burning rate and reduce the pressure index, but also produce "platform" or "Mesa" combustion characteristics. It has been found that the catalytic effect of organic lead sal...

Claims

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Application Information

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IPC IPC(8): C07F19/00B01J31/22
Inventor 洪伟良赵凤起刘剑洪仪建华高红旭徐司雨裴庆
Owner SHENZHEN UNIV
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