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Method for preparing tetracalcium phosphate

A technology of tetracalcium phosphate and phosphorus pentoxide, applied in chemical instruments and methods, phosphorus compounds, medical science and other directions, can solve the problems of low purity and low preparation efficiency

Inactive Publication Date: 2018-08-03
RUENTEX MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] U.S. Patent Publication No. 2009 / 0036656 and No. 2005 / 0191226, and U.S. Patent Publication No. 7838038 pointed out that fish scales are used as raw materials through mechanical grinding and sieving, or after pretreatment at a high temperature of 700 ° C. After sintering at 1500°C, human tissue repair materials for biomedicine can be prepared. However, this type of phosphate is the preparation method of tissue repair materials and still has disadvantages such as low preparation efficiency, high temperature heat treatment, and low purity.

Method used

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  • Method for preparing tetracalcium phosphate
  • Method for preparing tetracalcium phosphate
  • Method for preparing tetracalcium phosphate

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Embodiment Construction

[0035] The present invention includes, but is not limited to, the above and the following descriptions. The implementation is shown in the following example.

[0036] 1. Materials and methods

[0037] (a) Thermal analysis and thermal pretreatment test of fish scales

[0038] The present invention utilizes general fish scales to be used as raw materials for preparing tetracalcium phosphate (TTCP) powders. Therefore, in order to understand the characteristics that heat-treated fish scales can be crushed into powder by grinding equipment, the present invention utilizes a thermogravimetric / thermal difference analyzer (TG / DTA, Hitachi TG7200) To investigate the thermal cracking characteristics of fish scales, the temperature of the sample was raised from 25°C to 600°C; the heating rate was 10°C / min. The heat-treated fish scales were ground for 5 minutes with crushing and grinding equipment and sieved with a No. 30 sieve (ASTM No.30mesh). The effects of fish scales treated at diff...

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Abstract

The present invention provides a method for preparing tetracalcium phosphate. The method comprises: (1) heating a fish scale, and grinding the fish scale into powder to obtain fish scale powder; (2) adding a raw material to the fish scale powder for changing a mineral component in the fish scale powder, thereby obtaining a crude material powder; and (3) sintering the crude material powder at a high temperature to obtain a mixture containing tetracalcium phosphate monophosphate.

Description

technical field [0001] The invention relates to a method for preparing tetracalcium phosphate, which is characterized in that fish scales are used as raw materials to convert tetracalcium phosphate. Background technique [0002] The research and development of human tissue repair materials is a topic of global concern. Calcium Phosphate Cement (CPC) is a non-ceramic hydroxide apatite artificial bone material with self-fixing properties. It is made by mixing solid phase powder and solidification liquid in a certain proportion, wherein the solid phase powder is composed of one or more calcium phosphate salts, and the solid phase powder is composed of water, phosphate solution, dilute phosphoric acid, physiological saline, and blood, etc. Composed together. The solid phase powder is mixed with the solidification liquid to form an easy-to-shape slurry, which solidifies itself in a short time and at an appropriate temperature (room temperature or close to human body temperature)...

Claims

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Application Information

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IPC IPC(8): C01B25/32A61L27/12
CPCA61L27/12A61L2430/02C01B25/32C01P2002/72C01P2004/60C01P2004/61
Inventor 江世哲廖三棨郑瑞滨
Owner RUENTEX MATERIALS CO LTD
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