RO95821B1 - Process for obtaining alkaline salts of 0,0-dialkyldithiophosphoric acid esters - Google Patents

Process for obtaining alkaline salts of 0,0-dialkyldithiophosphoric acid esters

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Publication number
RO95821B1
RO95821B1 RO127503A RO12750387A RO95821B1 RO 95821 B1 RO95821 B1 RO 95821B1 RO 127503 A RO127503 A RO 127503A RO 12750387 A RO12750387 A RO 12750387A RO 95821 B1 RO95821 B1 RO 95821B1
Authority
RO
Romania
Prior art keywords
alkaline salts
acid esters
dialkyldithiophosphoric acid
obtaining alkaline
ferrous
Prior art date
Application number
RO127503A
Other languages
Romanian (ro)
Inventor
Gavril Duda
Paraschiv Ilie
Angela Michnea
Simina Simion
Aurelian Brancus
Mihai Cseh
Gheorghe Moldovan
Atilla Varodi
Dumitru Calin
Original Assignee
Institutul De Cercetari
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 Institutul De Cercetari filed Critical Institutul De Cercetari
Priority to RO127503A priority Critical patent/RO95821B1/en
Publication of RO95821B1 publication Critical patent/RO95821B1/en

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Abstract

Prezenta inventie se refera la obtinerea unor saruri alcaline ale esterilor acidului O,O dialchilditiofosforic, care au aplicatii în procesul de extractie prin procedeul flotatiei a minereurilor neferoase. Conform inventiei, se obtin saruri alcaline ale acizilor diachilditiofosforici, cu stabilitate ridicata în timp, cu un continut în substanta activa de peste 55% si cu o selectivitate mare la flotatia minereurilor neferoase, prin neutralizarea acidului diachilditiofosforic cu o solutie NaOH sau KOH, având concentratia de 35 ... 40%, pâna la pH = 8 ... 8,5, iar, în continuare, pH-ul se ridica pâna la 12 ... 13 prin adaos a unui amestec format din 25% NH indice 3, în care s-a solubilizat NH indice 4 Cl.The present invention relates to the preparation of alkaline salts of O, O dialkyldithiophosphoric acid esters, which have applications in the extraction process by the process of flotation of non-ferrous ores. According to the invention, alkaline salts of diachild thiophosphoric acids with high stability over time with an active substance content of over 55% and a high selectivity for non-ferrous ore floating are obtained by neutralizing diacyldithiophosphoric acid with a NaOH or KOH solution having the concentration of 35-40%, to pH = 8-8.5, and then the pH is raised to 12-13 by the addition of a mixture of 25% NH index 3, in which NH4 Cl 4 was solubilized.

RO127503A 1987-03-20 1987-03-20 Process for obtaining alkaline salts of 0,0-dialkyldithiophosphoric acid esters RO95821B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO127503A RO95821B1 (en) 1987-03-20 1987-03-20 Process for obtaining alkaline salts of 0,0-dialkyldithiophosphoric acid esters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO127503A RO95821B1 (en) 1987-03-20 1987-03-20 Process for obtaining alkaline salts of 0,0-dialkyldithiophosphoric acid esters

Publications (1)

Publication Number Publication Date
RO95821B1 true RO95821B1 (en) 1988-10-31

Family

ID=40904897

Family Applications (1)

Application Number Title Priority Date Filing Date
RO127503A RO95821B1 (en) 1987-03-20 1987-03-20 Process for obtaining alkaline salts of 0,0-dialkyldithiophosphoric acid esters

Country Status (1)

Country Link
RO (1) RO95821B1 (en)

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