SU682487A1 - Method of the preparation of magnesite additive - Google Patents
Method of the preparation of magnesite additiveInfo
- Publication number
- SU682487A1 SU682487A1 SU782584639A SU2584639A SU682487A1 SU 682487 A1 SU682487 A1 SU 682487A1 SU 782584639 A SU782584639 A SU 782584639A SU 2584639 A SU2584639 A SU 2584639A SU 682487 A1 SU682487 A1 SU 682487A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- magnesite
- preparation
- additive
- mgo
- terms
- Prior art date
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Fertilizers (AREA)
Description
В результате экзотермической реакции реакционна масса разогреваетс до 108°С. Степень растворени магнезита - 96,0%.As a result of the exothermic reaction, the reaction mass is heated to 108 ° C. The degree of dissolution of magnesite is 96.0%.
Нерастворившийс осадок отдел ют фильтрацией.The undissolved precipitate is separated by filtration.
Раствор в количестве 1070 мл имеет состав: 4,8% избыточной азотной кислоты; 10,9% MgO; 0,56% СаО и 0,50% НгОз.The solution in the amount of 1070 ml has the composition: 4.8% of excess nitric acid; 10.9% MgO; 0.56% CaO and 0.50% HgOz.
Высушенный в сушильном шкафу осадок в количестве 16,0 г имет следуюший состав: М§(ЫОз)2 64,9% (в пересчете на MgO 35,1%); Ca(NO3)2 4,74% (в пересчете на СаО 3,24%); полуторные окислы 8,15% (в пересчете на нитратную форму К2Оз 5,36%); SiO2 16,25%; остальное - влага. Степень извлечени MgO - 97,.The precipitate dried in the drying cabinet in the amount of 16.0 g has the following composition: Mg (NH3) 2 64.9% (in terms of MgO 35.1%); Ca (NO3) 2 4.74% (in terms of CaO, 3.24%); one and a half oxides of 8.15% (in terms of the nitrate form of K2Oz, 5.36%); SiO2 16.25%; the rest is moisture. The degree of extraction of MgO - 97 ,.
Пример 2. Процесс осупдествл ют как в примере 1. Дл разложени 236 г каустического магнезита берут 45%-ную азотную кислоту с избытком 5% в количестве 1148 мл. Температура реакционной массы- 112°С.Example 2. The process is finalized as in Example 1. To decompose 236 g of caustic magnesite, take 45% nitric acid with an excess of 5% in an amount of 1148 ml. The temperature of the reaction mass is 112 ° C.
Получают 1050 мл раствора, содержащего , %: MgO 11-29; СаО 0,62; Н2Оз 0,40; избыточна азотна кислота 5,39. Степень растворени магнезита - 89,9%. Осадок после сушки в количестве 15,8 г имеет состав: Mg(:NO3)2 68,93% (в пересчете на СаО 2,93%); полуторные окислы -4,82% (в пересчете на нитратную форму НгОз - 3,21%); SiO2 16,67%; остальное - влага. Степень извлечени MgO - 96,0%.Get 1050 ml of a solution containing,%: MgO 11-29; CaO 0.62; H2O3 0.40; excess nitric acid 5.39. The degree of dissolution of magnesite is 89.9%. The precipitate after drying in the amount of 15.8 g has the composition: Mg (: NO3) 2 68.93% (in terms of CaO 2.93%); one-and-a-half oxides -4.82% (in terms of the nitrate form NgOz - 3.21%); SiO2 16.67%; the rest is moisture. The degree of extraction of MgO is 96.0%.
Пример 3. Процесс осуществл ют как в примере 1. Дл разложени 236 г каустического магнезита берут 1393 мл 40%-ной азотной кислоты с избытком 10% противExample 3. The process is carried out as in Example 1. To decompose 236 g of caustic magnesite, take 1393 ml of 40% nitric acid with an excess of 10% against
стехиометрии. Температура реакционной массы - 106°С.stoichiometry. The temperature of the reaction mass is 106 ° C.
После отделени осадка на фильтре получают раствор в количестве 1200 мл, содержащий , %: MgO 10,5; СаО 0,56; 0,59; избыточна азотна кислота 5,21. Степень растворени магнезита - 95,1%. Осадок после сушки в количестве 15,4 г имеет следующий состав: Mg(NO3)2 67,52% (в иересчете на MgO 36,5%); Са(N03)24,28% (в пересчете на СаО 2,92%); полуторные окислы 8,34% (в пересчете на нитратную форму R203 5,54%); SiOs 16,29%; остальное - влага.After separating the precipitate on the filter, a solution is obtained in an amount of 1200 ml, containing,%: MgO 10.5; CaO 0.56; 0.59; excess nitric acid 5.21. The degree of dissolution of magnesite is 95.1%. The precipitate after drying in the amount of 15.4 g has the following composition: Mg (NO3) 2 67.52% (in terms of MgO 36.5%); Ca (N03) 24.28% (in terms of CaO 2.92%); one and a half oxides of 8.34% (in terms of the nitrate form R203 5.54%); SiOs 16.29%; the rest is moisture.
Степень извлечени MgO - 97,5%.The MgO recovery rate is 97.5%.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782584639A SU682487A1 (en) | 1978-03-01 | 1978-03-01 | Method of the preparation of magnesite additive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782584639A SU682487A1 (en) | 1978-03-01 | 1978-03-01 | Method of the preparation of magnesite additive |
Publications (1)
Publication Number | Publication Date |
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SU682487A1 true SU682487A1 (en) | 1979-08-30 |
Family
ID=20751098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU782584639A SU682487A1 (en) | 1978-03-01 | 1978-03-01 | Method of the preparation of magnesite additive |
Country Status (1)
Country | Link |
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SU (1) | SU682487A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2562269C1 (en) * | 2014-04-03 | 2015-09-10 | ОАО "Минудобрения" | Method of producing magnesia additive |
-
1978
- 1978-03-01 SU SU782584639A patent/SU682487A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2562269C1 (en) * | 2014-04-03 | 2015-09-10 | ОАО "Минудобрения" | Method of producing magnesia additive |
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