Dissertation > Industrial Technology > Chemical Industry > Silicate > Ceramic Industry > Raw materials and auxiliary materials

Study on Process of Synthesized Bone Black and Application

Author SunXiuXin
Tutor LiuGuoQuan
School Hebei University of Science and Technology
Course Applied Chemistry
Keywords Synthetic bone char Solid-phase synthesis Hydroxyapatite Wastewater containing lead Nano - titanium dioxide Photocatalytic properties
CLC TQ174.4
Type Master's thesis
Year 2011
Downloads 37
Quotes 0
Download Dissertation

Bone China is more popular in the market , a high-grade porcelain , its main raw material is natural bone char , but the market demand increasing bone charcoal , bone charcoal prices soared . Synthetic bone charcoal to meet the market demand for bone char instead of natural bone char , can reduce bone china price . Calcium carbonate and calcium hydrogen phosphate as the main raw material , the use of solid-phase synthesis prepared synthetic bone char , the main component of hydroxyapatite . The synthetic bone charcoal instead of the natural bone charcoal bone china . The results showed that , the synthetic bone char , bone china production to meet the requirements , and can greatly reduce the cost of production . A mass ratio of calcium carbonate and dicalcium phosphate to 1.0:2.4 , the firing temperature is 1200 ° C , pH 6 after firing , the better the nature of the synthetic bone charcoal . Hydroxyapatite as an adsorbent for aqueous solution Pb 2 and other heavy metal ions have a stronger adsorption . The prepared synthetic bone charcoal in addition to the performance of the lead by changing the synthetic bone charcoal of raw material ratio , temperature , the amount of synthetic bone charcoal the pH value , adsorption time of impact factors research synthetic bone charcoal as an adsorbent for aqueous lead adsorption effect. Experimental results show that : the raw ratio of calcium carbonate and calcium hydrogen phosphate synthetic bone char 1.0:2.4 , no significant effect of temperature on the adsorption effect , dosing 0.3g synthetic bone char , pH 6 , the adsorption time of 80min when synthetic bone char aqueous lead removal rate is relatively high . The synthetic bone charcoal ceramic raw materials can also be supported nano - TiO 2 , because of the long and short of the ceramic surface structure , surface area increases , increased photocatalytic properties . Experimental study of the coating layers of porous ceramic ball diameter , porogen content , the ratio of calcium carbonate and calcium hydrogen phosphate synthetic bone char , illumination time affect the photocatalytic performance . The results show that : the porogen content of 4%, and the ceramic having a diameter of 3mm , its coating Floors to 4 , the synthesis of bone char , calcium hydrogen phosphate and calcium carbonate mass ratio of 2.4:1.0 , good photocatalytic performance .

Related Dissertations
More Dissertations