Conclusion. References

Conclusion

The results of performed research allow to conclude the following:

production of marketable ammophos with content of assimilablephospholic anhydride – 53. 56%, nitrogen – 11. 68%, zinc – 0. 33%, and also humic acid – 10-15% is possible on the basis of mixture of phosphorus sludge and cottrell dust in ratio 2: 1, using for their decomposition the 30% water solution of ammonia sulphate and humic acid, at temperature 60oC degrees and optimal duration of the process equal to 60 minutes;

dry residue, derived after the filtration stage has in its composition: phosphor – 5. 81% (in terms of P2O5– 13. 31%, including P2O5 assimilable – 13. 25%, P2O5 water-soluble – 4. 75%), nitrogen – 4. 75%, humic acid 7-10%, which corresponds to the composition of ammoniated superphosphatel; initial humic acid, used in the process of decomposition of phosphatic secondary raw materials, is a highly effective substitute of expensive and aggressive mineral acids – sulphuric and nitric; humic acid in the composition of ammophos and ammoniated superphosphate will perform the role of organo-mineral additive, contributing to soil structure improvement; at the same time the humic acid will act as a plant protective composition against blasts and plant diseases.

References

1. Beisekova, Т. I.; Тurgumbayeva, H. H.; Lapshina, I. Z.; Shаnbayev, М. Zh.; Аbdualieva, Zh. U. “Utilization of technogenic wastes of phosphorus industry for production of building composites”, Modern day problems of science and education. 2015, 2, 22-24, available at: http: //www. science-education. ru/ru/article/view? id=21680(accessed 29 June 2016).

2. Baigarin, М. (2014), “There are no wastes – there is incomplete production: it is necessary to stop accumulation of technogenic wastes in Kazakhstan” – interview of A. Begeneyev, the Deputy of Mazhilis of Parliament of Republic Kazakhstan, published 13. 01. 2014, available at: http: //www. inform. kz/rus/article/2620769(accessed 29 June 2016).

3. Аldashov, B. А.; Sinyaeva, V. Т. “Development of the innovated method for getting new complex high quality fertilizer – ameliorant of ammophos of potash plaster”, Chemistry and chemical technology. Fundamental problems of creating new materials and technologies, 2010, 5, 6-9, Аlmaty, available at: http: //www. rusnauka. com/34_NIEK _2010/Chimia/74795. doc. htm(accessed 30 June 2016).

4. Myrzakhmetova, B.; Besterekov, U.; Petropavlovski, I.; Ahnazarova, S.; Kiselev V.; Romanova S. “Optimization of Decomposition Process of KaratauPhosphorites“. EurasianChemTech Journal. 2012, 14, 183-190.

⇐ Предыдущая 1 2 3 4 5 6 78