RO83232B1 - Process for the conversion of calcium nitrate to ammonium nitrate - Google Patents

Process for the conversion of calcium nitrate to ammonium nitrate

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Publication number
RO83232B1
RO83232B1 RO106253A RO10625382A RO83232B1 RO 83232 B1 RO83232 B1 RO 83232B1 RO 106253 A RO106253 A RO 106253A RO 10625382 A RO10625382 A RO 10625382A RO 83232 B1 RO83232 B1 RO 83232B1
Authority
RO
Romania
Prior art keywords
nitrate
solution
calcium nitrate
ammonium nitrate
calcium
Prior art date
Application number
RO106253A
Other languages
Romanian (ro)
Other versions
RO83232A2 (en
Inventor
Emil Ionescu
Paula Viorica Laurentiu
Rozana Formescu
Original Assignee
Institutul De Cercetari Chimice
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 Chimice filed Critical Institutul De Cercetari Chimice
Priority to RO106253A priority Critical patent/RO83232B1/en
Publication of RO83232A2 publication Critical patent/RO83232A2/en
Publication of RO83232B1 publication Critical patent/RO83232B1/en

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Abstract

Procedeul pentru conversia azotatului de calciu la azotat de amoniu conform inventiei consta în aceea ca se aduc în contact prin alimentare simultana o solutie saturata rezultata din dizolvarea în apa de cristalizare a azotatului de calciu tetrahidrat, pur sau impurificat cu fluor si o solutie de carbonat azotat de amoniu la temperatura de 60....70 degree C pîna la pH=7,5 pe o zestre formata din suspensia de CaCO3 în solutie de NH4 NO3 60% raportul de amestec fiind de 1 parte în greutate suspensie de reactie la 1 parte în greutate azotat de calciu tetrahidrat dupa care precipitatul se separa prin filtrare cu viteze variind cu numarul de recirculari ale zestrei, apoi se spala si se usuca iar solutia de azotat de amoniu se valorifica în mod obisnuit.The process for converting calcium nitrate to ammonium nitrate according to the invention consists in bringing into contact by simultaneous feeding a saturated solution resulting from the dissolution in pure crystallisation water of calcium nitrate tetrahydrate pure or impurified with fluorine and a solution of nitrate carbonate of ammonia at a temperature of 60 ... 70 ° C to pH 7.5 on a downy consisting of the CaCO3 slurry in 60% NH4 NO3 solution, the ratio of the mixture being 1 part by weight reaction suspension to 1 part by weight of calcium nitrate tetrahydrate, after which the precipitate is separated by filtration at rates ranging from the number of recirculation of the downy, then washed and dried, and the ammonium nitrate solution is routinely utilized.

RO106253A 1982-01-07 1982-01-07 Process for the conversion of calcium nitrate to ammonium nitrate RO83232B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO106253A RO83232B1 (en) 1982-01-07 1982-01-07 Process for the conversion of calcium nitrate to ammonium nitrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO106253A RO83232B1 (en) 1982-01-07 1982-01-07 Process for the conversion of calcium nitrate to ammonium nitrate

Publications (2)

Publication Number Publication Date
RO83232A2 RO83232A2 (en) 1984-02-21
RO83232B1 true RO83232B1 (en) 1984-02-28

Family

ID=20110907

Family Applications (1)

Application Number Title Priority Date Filing Date
RO106253A RO83232B1 (en) 1982-01-07 1982-01-07 Process for the conversion of calcium nitrate to ammonium nitrate

Country Status (1)

Country Link
RO (1) RO83232B1 (en)

Also Published As

Publication number Publication date
RO83232A2 (en) 1984-02-21

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