Dean et al.
1947
Anion exchange in soils: I. Exchangeable phosphorus and the anion-exchange capacity
US3044851A
(en )
1962-07-17
Production of ammonium phosphates and product thereof
US3290140A
(en )
1966-12-06
Method of mixing and storing solutions comprising ammonium phosphate
US3317306A
(en )
1967-05-02
Process for concentrating wet-process phosphoric acid
SU406798A1
(ko )
1973-11-21
GB1309578A
(en )
1973-03-14
Process for purifying phosphoric acid
NO123669B
(ko )
1971-12-27
US1841825A
(en )
1932-01-19
Boiler operation
US4721519A
(en )
1988-01-26
Stable ammonium polyphosphate liquid fertilizer from merchant grade phosphoric acid
DE859625C
(de )
1952-12-15
Verfahren zur Herstellung von Mehrstoff-Duengemitteln aus sauren, fluorhaltigen, Calcium und Phosphorsaeure enthaltenden Loesungen
SU358922A1
(ru )
1975-04-15
Способ упаривани фосфорной кислоты
GB430380A
(en )
1935-06-18
Improvements in the manufacture and production of mixed fertilisers containing lime
US1930885A
(en )
1933-10-17
Process for the treatment of hard waters
US3457036A
(en )
1969-07-22
Vacuum concentration of phosphoric acid
SU1070872A1
(ru )
1984-11-23
Способ получени сложного удобрени
GB343701A
(en )
1931-02-26
Method of treating solutions obtained in leaching phosphate rock with nitric acid and ammonium sulphate
US3943232A
(en )
1976-03-09
Process for the defluorination of dilute fluorine containing aqueous acid solutions
US2360730A
(en )
1944-10-17
Process of treating water for steam boilers
US1499611A
(en )
1924-07-01
Phosphoric acid in dehydrated form and method of making the same
GB339340A
(en )
1930-12-04
Improvements in and relating to the treatment of phosphate rock and the like
SU1152949A1
(ru )
1985-04-30
Способ получени жидких азотно-фосфорных удобрений
SU779371A1
(ru )
1980-11-15
Способ получени комплексных удобрений
CN109896640B
(zh )
2022-11-29
一种高效湿法磷酸石墨换热器阻垢剂、制备方法及应用
AT223216B
(de )
1962-09-10
Verfahren zur Herstellung eines zusammengesetzten stickstoff-, kalk- und phosphathaltigen Kunstdüngers
US2111532A
(en )
1938-03-15
Process of treating phosphate