PL8359B1

PL8359B1 - Method of obtaining both iron phosphide and remelted cement at the same time.

Info

Publication number: PL8359B1
Application number: PL8359A
Authority: PL
Filing date: 1927-02-17
Publication date: 1928-02-29

Description

Pierwszenstwo: 10 marca 1926 r, ("Niemcy).Przy przerabianiu fosforanów w piecach elektrycznych lub szybowych, jak wiadomo, odpowiednie ilosci fosforu wiaza sie z ze¬ lazem, tworzac fosforek zelaza. Znane sa Fee, P do Fe. P zawierajace praktycznie okolo 16 do 23n/0 P.Wiadomo ponadto, iz do stopu redukcyj¬ nego dodaje sie taka ilosc rudy zelaznej, aby cala ilosc fosforu zostala zwiazana, skoro wiec obecnie przekroczyc te ilosc top¬ nika, zawierajacego tlenek zelaza, i dodac, zaleznie od skladu stapianych fosforanów surowych, ponadto dalsze topniki w postaci glinu, tlenku wapniowego lub krzemowego lub wszystkie te topniki jednoczesnie, tak iz z jednej strony cala ilosc fosforu zosta¬ nie zwiazana z zelazem, tworzac fosforek, i skoro sklad zuzla odpowiada skladowi cennego cementu przetopionego, natenczas obok fosforku zelaza, zawierajacego z jed¬ nej strony kwas fosforowy, fosfor jak i po¬ dobne materjaly otrzymuje sie z drugiej strony ponownie tlenki zelaza lub wodoro¬ tlenki, poza tern jeszcze jako cenny produkt poboczny cement przetopiony.Sposób niniejszy, dzieki temu, ze zelazo wiaze cala ilosc fosforu, i wobec tego na zuzel nie moga oddzialywac ujemnie nawet slady tlenku fosforowego, daje ponadto te korzysc, iz do cementu mozna dodac bez zadnych trudnosci taka ilosc tlenku zelaza, jaka jest niezbedna do nadania mu dobrej jakosci.Skoro jako materjalu wyjsciowego, uzyc fosforanów glinowych, natenczas oprócztopnika zelazowego nalezy tylko dodac wapnia i kwasu krzemowego, PL PLFirst: March 10, 1926 ("Germany). When processing phosphates in electric or shaft furnaces, it is known that the appropriate amounts of phosphorus are bound with iron to form iron phosphide. There are known Fee, P to Fe. P containing practically approx. 16 to 23n / 0 P. It is also known that such an amount of iron ore is added to the reducing alloy to bind all the phosphorus, so now this amount of iron oxide-containing melt is exceeded and add, depending on the composition fused raw phosphates, moreover, further fluxes in the form of aluminum, calcium or silica oxide, or all of these fluxes simultaneously, also on the one hand all phosphorus will be bound to the iron, forming phosphide, and since the composition of the slag corresponds to that of the valuable melted cement in addition to iron phosphide, containing on the one hand phosphoric acid, phosphorus and similar materials, on the other hand, again iron oxides or hydroxides, apart from the present The present method, because iron binds all phosphorus, and therefore even traces of phosphorus oxide cannot have a negative effect on the gels, it also has the advantage that it can be added to the cement without any difficulties. iron oxide, which is necessary to give it good quality. Since aluminum phosphate should be used as a starting material, then in addition to iron flux, only calcium and silicic acid should be added, EN EN

Claims

1. patent claims, 1. A method for the simultaneous preparation of iron phosphide and melted cement, characterized by adding iron ore or iron scraps to the reducing alloy in an electric or shaft furnace, as well as fluxes, such as aluminum, calcium oxide, silica oxide, and this depending on the composition of processed phosphates, as a result of which, apart from iron phosphide, a valuable remelted cement is obtained,

2. A method according to claim 1, characterized by the use of aluminum phosphates as the starting material, in combination, in addition to iron flux, with calcium oxide and silica flux or one of them. Wladimir K y b e r. Deputy: M. Skrzypkowski, patent attorney. Printed by L. Boguslawski, Warsaw *. PL PL