Nitric Acid → Carbon Dioxide

HRID 1995053노트

반응식

HRID 1995053 반응식
[U].[N+:2]([O-:5])([OH:4])=[O:3].[C:6](=O)([OH:8])[O-:7].[NH4+:10].[OH-].[Ca+2:12].[OH-].C(=O)([O-])[O-].[Ca+2]>O>[C:6](=[O:8])=[O:7].[N+:2]([O-:5])([O-:4])=[O:3].[Ca+2:12].[N+:2]([O-:5])([O-:4])=[O:3].[N+:2]([O-:5])([O-:4])=[O:3].[NH4+:10]

참가 물질

9

반응물 5

HCID 944Nitric AcidHCID 10112Calcium CarbonateHCID 14013Ammonium BicarbonateHCID 23989UraniumHCID 6093208Calcium Hydroxide

생성물 3

HCID 280Carbon DioxideHCID 22985Ammonium nitrateHCID 24963Calcium nitrate

시약·촉매·용매 1

HCID 962Water용매2회

실험 절차

The resultant water solution containing trace quantities of uranium among other possible components, with a basic pH higher than about 8, is then acidified to the extent of lowering the pH to less than about 6, and preferably to within a range of about 5 to about 4, by the addition thereto of a mineral acid such as nitric acid. This acidification decomposes any of the water-contained ammonium bicarbonate (NH4HCO3), calcium hydroxide and calcium carbonate (CaCO3) to form carbon dioxide, calcium nitrate (Ca(NO3)2) and ammonium nitrate (NH4NO3), in addition to converting uranium compounds present to uranyl nitrate (UO2 (NO3)2).

후처리

  1. additionpreferably to within a range of about 5 to about 4, by the addition

출처 및 근거

ORD 기록
ord-3fe9d88544e44321a7784807e5749b33
출처 데이터셋
uspto-grants-1983_09
특허 번호
US04402918

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