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Method for preparing zirconium phosphate particles coated by antibiotic, and zirconium phosphate particles prepared thereby

An antibacterial ingredient, zirconium phosphate technology, applied in the field of thermal decomposition, can solve the problems of limited content of antibacterial substances, low amount of antibacterial substances, complicated processes, etc., and achieve the effect of excellent antibacterial power and stability, and free expression of color.

Inactive Publication Date: 2015-05-27
ACT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

That is, the above-mentioned preparation method is realized by very harsh conditions and complicated preparation procedures
Moreover, the ion exchange method by impregnation is the method mainly used when loading antibacterial substances on silica, zeolite, alumina, etc., although it has the advantage of uniform distribution of antibacterial substances, the amount of antibacterial substances that can be loaded less, and the loading time is too long
[0010] Like this, in the method of introducing metal ions into the above-mentioned conventional zirconium phosphate containing hafnium and loading silver ion antibacterial substances, it is necessary to reload antibacterial substances after preparing the metal ion introduction composition for the first time, so The time required for preparation is too long, the content of loaded antibacterial substances is limited, and it needs to go through complicated procedures, so the preparation cost is also high

Method used

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  • Method for preparing zirconium phosphate particles coated by antibiotic, and zirconium phosphate particles prepared thereby
  • Method for preparing zirconium phosphate particles coated by antibiotic, and zirconium phosphate particles prepared thereby
  • Method for preparing zirconium phosphate particles coated by antibiotic, and zirconium phosphate particles prepared thereby

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preparation example Construction

[0036] In the preparation process of inorganic antibacterial agents, a long-term thermal decomposition process under high temperature conditions is required in the prior art. For example, it is necessary to maintain a thermal decomposition process time of 1 to 36 hours at a temperature of 850 to 950°C, but the inorganic antibacterial agent zirconium phosphate powder prepared by the present invention only needs to be thermally decomposed at a temperature of 250 to 300°C for 0.5 to 1 hour. After thermal decomposition at 450-500°C for 1-2 hours, it can exhibit sufficient antibacterial properties.

[0037] The zirconium phosphate powder coated with an antibacterial component of the present invention has strong antibacterial activity, excellent heat resistance, chemical resistance, and processability, and is in the form of a white powder applicable to various dosage forms. Even when a small amount of expensive silver ion substance is used, it exhibits excellent antibacterial power ...

Embodiment 1

[0041] Embodiment 1: the preparation of the zirconium phosphate powder that contains silver and zinc coating layer

[0042] To 50g of zirconium phosphate (Zr(HPO 4 ) 2 ·H 2 O) Add 1L of deionized water, disperse it to a particle size below 500nm by a basket mill, put it into a 2.5L four-port reactor, and stir at 40°C for 1 hour to disperse. Dissolve 3 g of silver nitrate (AgNO 3 ) and 14.9g of zinc nitrate hexahydrate (Zn(NO 3 ) 2 )·6H 2 O) to prepare an aqueous solution, thereby adding dropwise to the above reaction liquid for 1 hour, stirring at 150 rpm at a temperature of 40° C. for 24 hours, and reacting in a light-shielded state. Thereafter, the reaction solution was cooled to room temperature, filtered through a separatory funnel, and washed twice with 250 g of deionized water to fully remove water. At a temperature of 45°C, a far-infrared dryer was used to dry the filter cake with hot air for 12 hours, and a jet mill was used to pulverize it. The pulverized powd...

Embodiment 2

[0043] Embodiment 2: Preparation of zirconium phosphate powder containing silver and magnesium coating layer

[0044] In the step of reacting the zirconium phosphate of Example 1 above with silver and zinc, the zirconium phosphate dispersion was prepared by dissolving 3 g of silver nitrate and 12.8 g of magnesium nitrate in 80 g of purified water 95.8 g. A metal nitrate salt solution was used to form a silver and magnesium coating layer. In the same manner as in Example 1 above, 47.4 g of zirconium phosphate powder containing a silver and magnesium coating layer was obtained.

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Abstract

The present invention relates to a method for producing zirconium phosphate powder coated with an antimicrobial ingredient, including the steps of: (A) putting zirconium phosphate (Zr(HPO4)2.nH2O) which has been pulverized to a size of 500nm or less through a basket mill and dispersed in deionized water into a reactor, and stirring the content of the reactor at a temperature of 20 to 60°C for 0.2 to 1 hours so as to disperse the content; (B) forming antimicrobial zirconium phosphate by reacting the content with a solution obtained by dissolving silver ion precursor and a metal salt selected from the group of zinc, calcium and copper in deionized water for 12 to 48 hours; (C) filtering the zirconium phosphate of step (B), cleansing the filtered matter with deionized water, and drying the cleansed matter at a temperature of 45 to 120°C for 4 to 12 hours with hot air supplied by a far-infrared ray dryer; and (D) pulverizing and pyrolyzing the dried matter at a temperature of 250 to 300°C for 0.5 to 1 hours, and then at a temperature of 450 to 500℃ for 1 to 2 hours so as to coat the zirconium phosphate with the antimicrobial ingredient.

Description

technical field [0001] The present invention relates to the preparation method of the zirconium phosphate powder that is coated with antibacterial component, specifically relate to after making silver ion and metal ion with antibacterial ability react with zirconium phosphate, carry out drying by far-infrared ray drier, and carry out after crushing Thermal decomposition technology to produce zirconium phosphate powder coated with antibacterial ingredients. Background technique [0002] As a means of improving the properties of metal and ceramic powder materials, ultrafine powder materials with a size of 1 μm or less are attracting great attention in the research and development process of making particles finer. On the other hand, currently used antibacterial agents are broadly classified into organic antibacterial agents and inorganic antibacterial agents. Compared with inorganic antibacterial agents, organic antibacterial agents are easier to process, and will not have a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G5/00B01J2/00
CPCC01B25/372B01J2/006B01J2/00C01B25/37C01G5/00
Inventor 金东贤千钟宇柳垡成
Owner ACT INC
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