Dispersed filler based on synthetic calcium carbonate – requirements for applications quality
https://doi.org/10.20914/2310-1202-2021-1-303-308
Abstract
The introduction of fillers into various materials improves its technological, physical and mechanical properties, and leads to a decrease in cost. The main areas of application of natural and synthetic calcium carbonate as highly dispersed fillers are: the construction industry, the production of Portland cement, mineral fertilizers, glass, paper, polymer composite materials, paints and varnishes, and rubbers. A promising direction at present is the use of production by-products as fillers, for example, conversion calcium carbonate - a waste product from the production of a complex mineral fertilizer - nitroammophoska. However, its use in the above areas is limited by the content of water-soluble nitrogen-containing impurities, impurities of heavy metals, strontium carbonate, phosphates, etc. The analysis of scientific, technical and patent literature on methods of purification of conversion calcium carbonate has been carried out. These methods are based on the extraction of impurities from the initial product of calcium carbonate production - a melt of calcium nitrate tetrahydrate by precipitation with various reagents, followed by the isolation of an insoluble precipitate (impurities) and processing of the purified melt into calcium carbonate and nitroammofoska. A method is proposed for the extraction of acid-tonic-soluble iron-containing impurities from the initial calcium nitrate melt in order to obtain a cleaner by-product - conversion calcium carbonate, which will expand the scope of its application. An effective method is to dilute the initial calcium nitrate melt with a 60% solution of ammonium nitrate to a calcium content of 12-13%, followed by the isolation of an acid-insoluble precipitate in a vacuum filter, conversion of the purified calcium nitrate solution with ammonium carbonate and separation of the resulting suspension in a drum filter. The described method can reduce the amount of iron-containing impurities by more than 50%.
About the Authors
E. S. Natarova
Voronezh State Medical University named after N.N. Burdenko
Russian Federation
Russian Federation
assistant, pharmaceutical chemistry and pharmaceutical technology department, Studencheskaya st., 10, Voronezh, 394036, Russia
Y. M. Nehcesova
Voronezh State University of Engineering Technologies
Dr. Sci. (Engin.), organic compounds technology, polymer processing and technosphere safety department, Revolution Av., 19 Voronezh, 394036, Russia
References
1. Tarchigina N.F., Borovitskaya N.I. Involvement of wastes from the production of mineral fertilizers in marketable products. Successes of modern science 2016. no. 2. pp. 63–66. (in Russian).
2. Kharichev O.E., Efremov G.I., Tarchigina N.F., Chernova O.I. Obtaining phosphorus fertilizers with additives of conversion calcium carbonate. Chemical technology. 2015. vol. 16. no. 3. pp. 142–147. (in Russian).
3. Tolouei M., Nazari H., Naderan A., Nejad F. Effects of Calcium Carbonate Nanoparticles and Fly Ash on Mechanical and Permeability Properties of Concrete. Advances in Civil Engineering Materials 2018. vol. 7. pp. 253–258. doi: 10.1520/ACEM20180066
4. Thriveni Thenepalli. A strategy of precipitated calcium carbonate (CaCO3) fillers for enhancing the mechanical properties of polypropylene polymers. Korean Journal of Chemical Engineering 2015. vol. 32. pp. 1009–1022. doi: 10.1007/s11814-015-0057-3 (in Korean)
5. Xiaolei Huang. Ten-year long-term organic fertilization enhances carbon sequestration and calcium-mediated stabilization of aggregate-associated organic carbon in a reclaimed Cambisol. Geoderma. 2019. vol. 355. pp. 799–815. doi: 10.1016/j.geoderma.2019.113880 (in Korean)
6. Prudnikov A.D., Prudnikova A.G., Yanenkov D.A. Efficiency of ameliorants introduction for fodder crops. Feed production. 2014. no. 8. pp. 22–25. (in Russian).
7. Kurbangaleeva M.Kh. The use of solid waste of soda production as a raw material for obtaining marketable products. Cities of Russia: problems of construction, engineering, improvement and ecology: proceedings of the conference. Moscow, 2015. pp. 59–62. (in Russian).
8. Chernyshov E.M., Chernykh D.I., Potamoshneva N.D. Composites based on the utilization of technogenic (conversion) calcium carbonate: models and possible mechanisms of structure formation. Scientific Bulletin of the Voronezh State University of Architecture and Civil Engineering. Construction and architecture 2014. no. 3 (35). pp. 38–50. (in Russian).
9. Rudakova L.I., Niftaliev S.I., Natarova E.S. Conversion calcium carbonate as a filler for thermoplastics. Izvestiya vuzov. Chemistry and chemical technology. 2017. vol. 60. no. 4. pp. 100–107. (in Russian).
10. Eriksen F.R., Eustad H.K. Method of purification of calcium nitrate and obtained products. Patent RF, no. 2459765, 2008.
11. Tauk M.V., Cherkasova T.N., Nikolaeva I.I., Gorshkova N.V. Method of purification of a melt or solution of calcium nitrate. Patent RF, no. 2228906, 2003.
12. Sezemin V.A., Abramov O.B., Zakharova O.M. Method of obtaining a purified solution of calcium nitrate. Patent RF, no. 2239601, 2004.
13. Fakeev A.A., Vendilo A.G. Method of obtaining high purity calcium carbonate. Patent RF, no. 2414425, 2011.
14. Mukhacheva T.E., Medyantseva D.G., Zakharova O.M., Klimova O.S. et al. Method of obtaining a purified solution of calcium nitrate. Patent RF, no. 2507154, 2014.
15. Tarchigina N.F., Kharichev O.E., Kapralova N.S., Shaimurzina K.I. Some aspects of technological solutions for the production of nitroammophos and increasing the efficiency of the use of secondary resources by introducing calcium carbonate into the melt. Internet journal "Science Science". 2015. vol.7. no. 5. pp. 163–177. (in Russian).
16. Rudakova L.I., Niftaliev S.I., Nechesova Yu.M., Natarova E.S. Aspects of using conversion calcium carbonate – solving the ecological problem of disposal. Ecology and Industry of Russia. 2018. vol. 22. no. 10. pp. 14–19. (in Russian)
17. Holcomb M., DeCarlo T.M., Schoepf V., Dissard D. et al. Cleaning and pre-treatment procedures for biogenic and synthetic calcium carbonate powders for determination of elemental and boron isotopic compositions. Chemical Geology. 2015. vol. 398. pp. 11-21. doi: 10.1016/j.chemgeo.2015.01.019
18. Schenk A.S., Zope H., Kim Y.Y., Kros A. et al. Polymer-induced liquid precursor (PILP) phases of calcium carbonate formed in the presence of synthetic acidic polypeptides—relevance to biomineralization. Faraday Discussions. 2012. vol. 159. no. 1. pp. 327-344. doi: 10.1039/C7RA07783A
19. Ihli J., Wong W.C., Noel E.H., Kim Y.Y. et al. Dehydration and crystallization of amorphous calcium carbonate in solution and in air. Nature communications. 2014. vol. 5. no. 1. pp. 1-10. doi: 10.1038/ncomms4169
20. Okhrimenko D.V., Nissenbaum J., Andersson M.P., Olsson M.H.M. et al. Energies of the adsorption of functional groups to calcium carbonate polymorphs: the importance of? OH and? COOH groups. Langmuir. 2013. vol. 29. no. 35. pp. 11062-11073. doi: 10.1021/la402305x
Review
For citations:
Natarova E.S., Nehcesova Y.M. Dispersed filler based on synthetic calcium carbonate – requirements for applications quality. Proceedings of the Voronezh State University of Engineering Technologies. 2021;83(1):303-308. (In Russ.) https://doi.org/10.20914/2310-1202-2021-1-303-308
Views:
500
Email this article 
Post a Comment 
