Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF0 Cites 6 Cited by
  • 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 environment in the links of experimentation, preparation, use, powder column treatment and rocket engine exhaust.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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
Comparison scheme
Effect test

Embodiment 1

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

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

[0019] (3) Slowly add water into the reaction bottle and stir until it is completely dissolved, then pour into 300ml of ice water and stir well. 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 of water, add activated carbon, heat filter, cool, filter with suction, wash, dry, and obtain 2,3,3',4,4',5'-hexahydroxybenzidine 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 adopts FTIR spectrum and 1 HNMR spectrum to analyze its structure. ...

Embodiment 2

[0025] The basic formula of the modified double-base propellant is: double-base binder 66%, RDX 26%, No. 2 neutralizer (C 2 ) 2.0%, other additives 6%. The samples were prepared according to the conventional solvent-free compression molding process of absorption-water displacement-release-cooking-calendering-cutting into medicine strips. The medicine material is dosed according to 500g, and the catalyst is added in an amount of 3.0%; the blank propellant sample of the control group does not contain a catalyst.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com