PL397407A1 - Method for preparing of sodium tripolyphosphate by varying the molar ratio of sodium oxide and phosphorus pentoxide - Google Patents

Method for preparing of sodium tripolyphosphate by varying the molar ratio of sodium oxide and phosphorus pentoxide

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Publication number
PL397407A1
PL397407A1 PL397407A PL39740711A PL397407A1 PL 397407 A1 PL397407 A1 PL 397407A1 PL 397407 A PL397407 A PL 397407A PL 39740711 A PL39740711 A PL 39740711A PL 397407 A1 PL397407 A1 PL 397407A1
Authority
PL
Poland
Prior art keywords
molar ratio
sodium
phosphorus pentoxide
sodium tripolyphosphate
varying
Prior art date
Application number
PL397407A
Other languages
Polish (pl)
Other versions
PL224510B1 (en
Inventor
Agnieszka Makara
Zygmunt Kowalski
Marcin Banach
Original Assignee
Politechnika Krakowska Im. Tadeusza Kosciuszki
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Politechnika Krakowska Im. Tadeusza Kosciuszki filed Critical Politechnika Krakowska Im. Tadeusza Kosciuszki
Priority to PL397407A priority Critical patent/PL224510B1/en
Publication of PL397407A1 publication Critical patent/PL397407A1/en
Publication of PL224510B1 publication Critical patent/PL224510B1/en

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Abstract

Sposób otrzymywania trójpolifosforanu sodu przy zmiennym stosunku molowym tlenku sodu i pieciotlenku fosforu polega na tym, ze do stezonego kwasu fosforowego dodaje sie stopniowo, przy ciaglym mieszaniu i rozcieraniu, sode amoniakalna w takiej ilosci, by stosunek molowy Na2O/P2O5 wynosil od 1,57 do 1,77 do otrzymania konsystencji produktu sypkiego, zawierajacego stale wodorofosforany sodu, po czym dodaje sie, przy ciaglym mieszaniu, recyrkulowany gotowy produkt trójpolifosforanu sodu przy stosunku wagowym recyrkulatu do wsadu od 0 do 5/1, a nastepnie prowadzi sie bezposrednia kalcynacje tej mieszaniny w kalcynatorze.The method of obtaining sodium tripolyphosphate with a variable molar ratio of sodium oxide and phosphorus pentoxide is that to the concentrated phosphoric acid is gradually added, with continuous mixing and trituration, ammonia soda in such an amount that the Na2O / P2O5 molar ratio is from 1.57 to 1.77 to obtain a consistency of a loose product, containing solid sodium hydrogen phosphates, after which, with continuous stirring, the recirculated finished product of sodium tripolyphosphate is added at a weight ratio of recirculate to feed from 0 to 5/1, followed by direct calcination of this mixture in calciner.

PL397407A 2011-12-14 2011-12-14 Method for preparing of sodium tripolyphosphate by varying the molar ratio of sodium oxide and phosphorus pentoxide PL224510B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL397407A PL224510B1 (en) 2011-12-14 2011-12-14 Method for preparing of sodium tripolyphosphate by varying the molar ratio of sodium oxide and phosphorus pentoxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL397407A PL224510B1 (en) 2011-12-14 2011-12-14 Method for preparing of sodium tripolyphosphate by varying the molar ratio of sodium oxide and phosphorus pentoxide

Publications (2)

Publication Number Publication Date
PL397407A1 true PL397407A1 (en) 2013-06-24
PL224510B1 PL224510B1 (en) 2017-01-31

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Family Applications (1)

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PL397407A PL224510B1 (en) 2011-12-14 2011-12-14 Method for preparing of sodium tripolyphosphate by varying the molar ratio of sodium oxide and phosphorus pentoxide

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PL (1) PL224510B1 (en)

Also Published As

Publication number Publication date
PL224510B1 (en) 2017-01-31

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