GR18385B - METHOD FOR CONCENTRATION OF URINE SOLUTIONS TO A PRACTICALLY DISCHARGED WATER MASS. - Google Patents

METHOD FOR CONCENTRATION OF URINE SOLUTIONS TO A PRACTICALLY DISCHARGED WATER MASS.

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Publication number
GR18385B
GR18385B GR570118385A GR570118385A GR18385B GR 18385 B GR18385 B GR 18385B GR 570118385 A GR570118385 A GR 570118385A GR 570118385 A GR570118385 A GR 570118385A GR 18385 B GR18385 B GR 18385B
Authority
GR
Greece
Prior art keywords
urea
concentration
discharged water
water mass
mass
Prior art date
Application number
GR570118385A
Other languages
Greek (el)
Original Assignee
Stamicarbon N.V.
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 Stamicarbon N.V. filed Critical Stamicarbon N.V.
Priority to GR570118385A priority Critical patent/GR18385B/en
Publication of GR18385B publication Critical patent/GR18385B/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

έθοδος δια την παραγωγήν αρκούντως ανύδρου ουρίας, περιλαμβάνουσα την συμπύκνωσιν ενός υδατικού διαλύτματος ουρίας μέχρι περιεκτικότητος 87 έως 96% περίπου ουρίας κατά βάρος έν κενώ υποπίεσιν ανωτέραν των 200 χιλ. υδραργύρου και έν συνεχεία υποβολήντου ειρημένου πυκνού διαλύαμτος είς δευτεραν συμπύκωνσιν είς έν δεύτερον σταδιον υπό κενόν μικρότερον των 100 χιλ. υδραργύρου, μετά ταυτοχρόνου απομακρύνσεως τω νεξ αυτού υδρατμών ,είς τρόπον ώστε ναεπιτευχθεί μία μαζα στερεάς ουρίας εν διαλύματι ουρίας, αφαίρεσις της ειρημένης μάζης ουρίας υπό μορφήν τμήματος, ενώ παρέχεται συνεχώς θερμότης, είςτρόπον ώστε η θερμοκρασία εξαγωγής του ειρημένου τήγματος να διατηρείται κάτω των 145 βαθμών κελσίου. Process for the production of sufficiently anhydrous urea, comprising concentrating an aqueous solution of urea to a content of approximately 87 to 96% by weight of urea by vacuum vacuum above 200 mm Hg and then subjecting said concentrated concentrate to a second concentrated solvent less than 100 mm Hg, after simultaneously removing the water vapor from it, in such a way as to obtain a mass of solid urea in urea solution, removing said mass of urea in portion form, while continuously providing heat to evaporate kept below 145 degrees Celsius.

GR570118385A 1957-10-24 1957-10-24 METHOD FOR CONCENTRATION OF URINE SOLUTIONS TO A PRACTICALLY DISCHARGED WATER MASS. GR18385B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GR570118385A GR18385B (en) 1957-10-24 1957-10-24 METHOD FOR CONCENTRATION OF URINE SOLUTIONS TO A PRACTICALLY DISCHARGED WATER MASS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR570118385A GR18385B (en) 1957-10-24 1957-10-24 METHOD FOR CONCENTRATION OF URINE SOLUTIONS TO A PRACTICALLY DISCHARGED WATER MASS.

Publications (1)

Publication Number Publication Date
GR18385B true GR18385B (en) 1957-12-23

Family

ID=36859553

Family Applications (1)

Application Number Title Priority Date Filing Date
GR570118385A GR18385B (en) 1957-10-24 1957-10-24 METHOD FOR CONCENTRATION OF URINE SOLUTIONS TO A PRACTICALLY DISCHARGED WATER MASS.

Country Status (1)

Country Link
GR (1) GR18385B (en)

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