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УДК 54
Esenova M. H.
Teacher of Oguz han Engineering and Technology University of Turkmenistan Ashgabat, Turkmenistan Charyyeva G. D.
Teacher of Oguz han Engineering and Technology University of Turkmenistan Ashgabat, Turkmenistan Berdiyeva A. A.
Teacher of Oguz han Engineering and Technology University of Turkmenistan Ashgabat, Turkmenistan Ahmetjanova Sh. M.
3rd year student of Oguz han Engineering and Technology University of Turkmenistan Ashgabat, Turkmenistan
POSSIBILITIES OF OBTAINING SYNGENITE FROM WASTE OF CHEMICAL PRODUCTION
Annotation
Phosphogypsum, a waste product is used as a raw material to study the possibility of obtaining syngenite.
Keywords
Phosphogypsum, waste, syngenite, water, composition.
In our time, the problem of protecting the environment and improving the environment has become one of the common problems of humanity. At the same time, while strengthening our economy, reducing the number of goods imported from abroad, and increasing the number of products sold abroad, at the same time, the products that are in great demand in our country are in our own country, obtaining local raw materials is one of the main problems of us and scientists.
Chemical production in our state of Turkmenistan is growing rapidly. The amount of by-products released from them is several million tons, and these emissions have a harmful effect on the environment. The main part of these emissions is phosphogypsum, which is formed by processing phosphorus-containing raw materials (phosphorite flour) with sulfuric acid. In order to positively solve these problems, relevant work is being carried out in the country. One of the main industrial wastes of the country is phosphogypsum, a waste product formed during the processing of minerals containing phosphorus in the Turkmenabat chemical plant named after S.A. Niyazov.
Important aspects of phosphogypsum processing are devoted to the study of this product based on the acquisition of high-quality building materials and mineral fertilizers.
Phosphogypsum, a waste product of the Turkmenabat chemical plant named after S. A. Niyazov, is used as a raw material to study the possibility of obtaining syngenite in scientific work. Syngenite is an uncommon potassium calcium sulfate mineral with formula K2Ca(SO4)2-H2O. It forms as prismatic monoclinic crystals and as encrustations. The phosphogypsum was washed with distilled water, dried and crushed. The conversion process of phosphogypsum by converting it in an 25% ammonia solution with potassium chloride. The resulting solution was filtered. The solid was washed with water and dried in a desiccator. Its chemical composition was studied and the obtained results are reflected in Table 1.
Table 1
Chemical composition of syngenite
Oxides Al2O3 SiO2 P2O5 SO3 K2O CaO MnO Fe2O3 ZnO As2O3 SrO
0,336 5,446 1,535 36,721 25,369 27,29 160,3 0,401 26,2 2,4 898,2
PPm PPm PPm PPm
Y2O3 ZrO2 BaO PbO Cl Br
183,7 47,9 0,112 40,4 2,652 48,7
PPm PPm PPm PPm
Elements Al Si P S Cl K Ca Mn Fe Zn As
0,222 3,256 0,894 20,764 4,078 34,526 35,29 239,8 0,542 40,9 3,5
PPm PPm PPm
Br Sr Y Zr Ba Pb
94,8 0,148 282,4 69,1 0,193 73,0
PPm PPm PPm PPm
References:
1. И.И. Гончарик, З.А. Готто, А.Л. Навныко, Н.В. Колбун. Получение сульфата калия путем конверсии фосфогипса и хлорида калия в аммиачном растворе. Журнал прикладной химии. 2020. Т. 93. Вып. 3. С. 341346.
2. Д. А. Каймакова, Ш. С. Намазов, А. Р. Сейтназаров, У. К. Алимов, Г. Б. Темиров. Утилизация фосфогипса методом аммиачной конверсии его с хлоридом калия. Научный журнал: Universum: технические науки. 2021. №5 (86). С. 9-13.
3. М. Ресулгулыев, М. Бабаев. Способы получения промышленной продукции отходов химического производства. Материалы научной конференции "Наука, техника и развитие инновационных технологий", посвященной 30-летнему юбилею Независимости Туркменистана. 2021. С. 294-296.
© Esenova M. H., Charyyeva G. D., Berdiyeva A. A., Ahmetjanova Sh. M., 2024
УДК: 543.42
Аллакулов С.
Преподаватель кафедры неорганической и аналитической химии
ТГУ имени Махтумкули г. Ашхабад. Туркменистан Тойлыева Г.
Студентка 2 курса химического факультета ТГУ имени Махтумкули
г. Ашхабад. Туркменистан Сердаров Д.
Студент 2 курса химического факультета ТГУ имени Махтумкули
г. Ашхабад. Туркменистан Сапарова А.
Студентка 2 курса химического факультета ТГУ имени Махтумкули
г. Ашхабад. Туркменистан
ОБЩИЕ СВОЙСТВА И ИСПОЛЬЗОВАНИЕ РЕФРАКТОМЕТРИЧЕСКОГО АНАЛИЗА
Аннотация
Рефрактометрический анализ представляет собой метод измерения показателя преломления
