ES324777A1 - A procedure to produce crystalline urea from low content of biuret by washing urea crystals. (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure to produce crystalline urea from low content of biuret by washing urea crystals. (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chemical Construction Corp
Original Assignee
Chemical Construction Corp
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 Chemical Construction CorpfiledCriticalChemical Construction Corp
Priority to ES0324777ApriorityCriticalpatent/ES324777A1/en
Publication of ES324777A1publicationCriticalpatent/ES324777A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
A process for producing crystalline urea of low biuret content by washing the urea crystals, characterized in that the crystals are removed from the crystallization operation in a suspension having mother liquors of high biuret content, they pass countercurrently with an aqueous solution of urea of low biuret content, and then they are separated from the aqueous solution, while the solution, after flowing in countercurrent with the crystals, is passed to the recrystallization operation. (Machine-translation by Google Translate, not legally binding)
ES0324777A1966-03-281966-03-28A procedure to produce crystalline urea from low content of biuret by washing urea crystals. (Machine-translation by Google Translate, not legally binding)
ExpiredES324777A1
(en)
A procedure to produce crystalline urea from low content of biuret by washing urea crystals. (Machine-translation by Google Translate, not legally binding)
A procedure to produce crystalline urea from low content of biuret by washing urea crystals. (Machine-translation by Google Translate, not legally binding)
A procedure to produce crystalline urea from low content of biuret by washing urea crystals. (Machine-translation by Google Translate, not legally binding)
A procedure to produce crystalline urea from low content of biuret by washing urea crystals. (Machine-translation by Google Translate, not legally binding)
A new procedure for the preparation of calcium tiosulfate to increase its stability during its preparation, as well as its dissolutions (Machine-translation by Google Translate, not legally binding)
A procedure for the elimination of biuret from a saturated urea solution containing biuret (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of potassium nitrate from calcium nitrate and potassium chloride (Machine-translation by Google Translate, not legally binding)