发明名称 |
Process for blending phosphoric acids of differing impurity content |
摘要 |
Phosphoric acids of significantly different content of soluble impurities, especially magnesium compounds, can be blended to produce a phosphoric acid with a decreased tendency for forming detrimental solids when converted to a liquid fertilizer or on storage, or during transportation as when the acid is transported by ocean vessel or railroad tank car. The blending can be effected either before or after a concentration step or steps (e.g., evaporation to "merchant grade" or to superphosphoric acid). For example, wet process phosphoric acid produced by a dihydrate or gypsum process can be blended with a phosphoric acid produced by a hemihydrate process.
|
申请公布号 |
US4445926(A) |
申请公布日期 |
1984.05.01 |
申请号 |
US19810318502 |
申请日期 |
1981.11.05 |
申请人 |
OCCIDENTAL CHEMICAL CO. |
发明人 |
MILLS, HAROLD E.;MURDOCK, DAVID L.;RAMER, RICHARD M.;SALE, FRANCIS M. |
分类号 |
C01B25/235;C01B25/24;(IPC1-7):C05B7/00 |
主分类号 |
C01B25/235 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|