A kind of preparation method of calcium hydroxyphosphate

A technology of calcium hydroxyphosphate and calcium enrichment, applied in chemical instruments and methods, phosphorus compounds, inorganic chemistry, etc., can solve the problems of high cost and large environmental load, and achieve low cost, wide application range and simple and easy process. Effect
CN109534309BInactive Publication Date: 2019-08-30YANGTZE NORMAL UNIVERSITY
2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
YANGTZE NORMAL UNIVERSITY
Publication Date
2019-08-30
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention discloses a preparation method of hydroxy calcium phosphate. The hydroxy calcium phosphate is prepared with hardened gel in waste concrete as a raw material. The purity of the obtained hydroxy calcium phosphate is high, the uniformity of grain compositions and the grain size is improved, the grain size is generally less than 20 [mu]m, the hydroxy calcium phosphate is mainly preparedfrom rodlike and flat-sheet-shaped grains, and the quality of the hydroxy calcium phosphate is effectively improved. The raw material is low in cost and easy to obtain, the process is simple and easyto implement, the cost is low, and large-scale industrial production is easy. Resource utilization of the hardened gel in the waste concrete can be improved, meanwhile, an environment-friendly new material which is large in storage quantity, wide in source, low in cost and easy to obtain and conforms to national related supportive policies is also provided for preparation of the hydroxy calcium phosphate, and the preparation method of the hydroxy calcium phosphate has obvious social benefits and environmental benefits.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of mineral processing, in particular to a preparation method of calcium hydroxyphosphate. Background technique

[0002] Due to its excellent biocompatibility, bioactivity, high chemical stability and mechanical properties, calcium hydroxyphosphate is widely used in biomaterials, ceramic materials and suspension dispersion materials. For example, in the field of biomaterials, it can be used as a human bone repair material with good biocompatibility, and has the characteristics of stimulating the growth of bone cells and synchronously degrading themselves. In the suspension polymerization of petrochemical industry, hydroxy-activated calcium phosphate can make the particle size distribution of the polymer resin concentrated, the reaction temperature and pressure are stable, and the material is not easy to stick to the wall of the reaction kettle and the agitator, which can prolong the cleaning period of the ket...

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