发明名称 |
СПОСОБ ПОЛУЧЕНИЯ АЗОТНО-КАЛИЙНОГО УДОБРЕНИЯ |
摘要 |
FIELD: mineral fertilizers. ^ SUBSTANCE: manufacture of fertilizers based on ammonium nitrate and potassium salt comprises stepwise neutralization of nitric acid with ammonia to form concentrated ammonium nitrate solution, addition of potassium-containing solution, evaporation-concentration of resulting solution, and granulation of melt, said potassium-containing solution being product obtained by treatment of industrial-grade potassium carbonate with nitric acid mixed with ammonium nitrate solution, preliminarily neutralized with ammonia and evaporated to residual water no higher than 20 wt %, ammonium nitrate-to-potassium nitrate weight ratio being maintained (3-1):1 and concentration of ammonium nitrate solution used to obtain potassium-containing solution being maintained within a range of 20 to 90%. Thus manufactured fertilizer contains 30.7-33.5% nitrogen and 3.0-9.0% potassium oxide. ^ EFFECT: increased strength of fertilizer granules and reduced their conglomeration. ^ 4 cl, 3 ex |
申请公布号 |
RU2003122299(A) |
申请公布日期 |
2005.01.10 |
申请号 |
RU20030122299 |
申请日期 |
2003.07.16 |
申请人 |
Открытое акционерное общество "Кирово-Чепецкий химический комбинат имени Б.П. Константинова" (ОАО КЧХК) (RU) |
发明人 |
Абрамов Олег Борисович (RU);Дедов Алексей Сергеевич (RU);Дремов Анатолий Викторович (RU);Захарова Ольга Михайловна (RU);Киселевич Петр Викторович (RU);Лаверженцева Ирина Владимировна (RU);Логинов Николай Дмитриевич (RU);Мачехин Георгий Николаевич (RU);Молодцов Геннадий Алексеевич (RU);Пономарев Николай Павлович (RU);Сеземин Владимир Алексеевич (RU);Терентьев Юрий Николаевич (RU);Цепелев Евгений Александрович (RU);Шустов Владимир Васильевич (RU);Южанин Геннадий Андреевич (RU) |
分类号 |
C05G1/00;C05C1/00;C05D1/00 |
主分类号 |
C05G1/00 |
代理机构 |
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代理人 |
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