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Process for producing carbonate apatite

A technology of carbonated apatite and manufacturing method, which is applied in the direction of chemical instruments and methods, phosphorus oxyacids, phosphorus compounds, etc., can solve the problems of not knowing carbonated apatite, etc., and achieve the effect of simple process and high import rate

Active Publication Date: 2020-07-17
JAPAN ATOMIC ENERGY AGENCY INDEPENDANT ADMINISTRATIVE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, no method is known to efficiently obtain carbonate apatite from natural materials such as bone

Method used

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  • Process for producing carbonate apatite
  • Process for producing carbonate apatite
  • Process for producing carbonate apatite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] (Material production and physical property evaluation)

[0051] Pork bones were heated at 130° C. for 3 hours at two atmospheres. Remove the stripped bone marrow (step 1). Then, 5 g (sample 1), 0.5 g (sample 2), 0.05 g (sample 3), and 0.025 g (sample 4) of NaHCO were added to 2.5 g of the sample and 50 mL of pure water. 3 , heated at 45° C. under atmospheric pressure for 48 hours (step 2). After that, wash with water and dry at 60°C for 2 hours ( figure 1 ). The sample was pulverized into a powder ( figure 2 ). Using this as the material of the present invention, the following evaluations were performed. As a comparison, a sample (sample α) obtained by performing only step 1 and then drying and pulverizing, and commercially available hydroxyapatite were used.

[0052] Confirmed by powder X-ray diffraction measurement: the material of the present invention obtains the same hexagonal crystal system (P6 3 / m) crystal structure ( image 3 ). The broad background ...

Embodiment 2

[0067] (Material production and physical property evaluation)

[0068] The introduction of carbonic acid was evaluated using various carbonates. Pork bones were heated at 130° C. for 3 hours at two atmospheres. Remove the stripped bone marrow (step 1). Afterwards, each 5 g of ammonium carbonate ((NH 4 ) 2 CO 3 ), sodium carbonate (Na 2 CO 3 ), potassium bicarbonate (KHCO 3 ), heated at 45° C. and atmospheric pressure for 48 hours (step 2). Thereafter, it was washed with water and dried at 60° C. for 2 hours. This sample was pulverized until it became powdery.

[0069] As a result of measuring the absorption spectrum by infrared absorption spectroscopy, it was confirmed that in the samples made of each carbonate, an increase in the intensity of the peak of the carbonic acid group was observed, and carbonic acid ( Figure 8 ).

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Abstract

An efficient method of producing a carbonate apatite is provided. The method comprises: a first step of calcining animal bone; and a second step of reacting a bone calcined product obtained in the first step with a basic carbonate compound.

Description

technical field [0001] The invention relates to a manufacturing technology of carbonate apatite. Background technique [0002] Since apatite compounds have good affinity with living bodies, many studies have been conducted on synthesis methods and physical properties with the aim of application as raw materials for artificial bones, drug delivery carriers, etc., and as metal adsorbents. Usually, apatite compounds are prepared by CaHPO 4 2H 2 O and CaCO 3 Since raw materials are synthesized by sintering at 500° C. or higher, there is a problem in terms of cost for applications requiring inexpensive metal adsorbents and the like. [0003] Patent Document 1 discloses a method of producing hydroxyapatite powder using apatite particles obtained by firing natural bone. However, a method for efficiently obtaining carbonate apatite from natural materials such as bone is not yet known. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: Japanese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B25/32
CPCC01B25/32C01P2002/72C01P2004/04C01P2002/60C01B25/16Y02E60/50
Inventor 関根由莉奈南川卓也香西直文
Owner JAPAN ATOMIC ENERGY AGENCY INDEPENDANT ADMINISTRATIVE CORP
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