Urea → Urea

HRID 705397

반응식

HRID 705397 반응식
[NH2:1][C:2]([NH2:4])=[O:3].O.O.[S:7]([O-:11])([O-:10])(=[O:9])=[O:8].[Ca+2]>O>[S:7]([O-:11])([O-:10])(=[O:9])=[O:8].[NH4+:1].[NH4+:1].[NH2:1][C:2]([NH2:4])=[O:3]

참가 물질

5

반응물 2

HCID 1176UreaHCID 24928Calcium Sulfate Dihydrate

생성물 2

HCID 1176UreaHCID 6097028Ammonium Sulfate

시약·촉매·용매 1

HCID 962Water용매

실험 절차

The fertilizer coatings may be applied in batch mode by loading a targeted weight of urea prills or granules to a drum roller, roller mill, or other rolling-cylinder configuration, sprayed with between 1.0 and 1.75 percent water by weight, and rolled for about one minute to permit the urea surface to soften. Powdered calcium sulfate dihydrate (gypsum) is then added to the drum roller to provide a final ammonium sulfate to urea ratio of 1 to 3 (i.e., 25 percent ammonium sulfate by dry weight). Rolling of the urea and gypsum is continued for 2 minutes at which time, a polyurethane coating is applied at between 0.1 and 0.5 percent by weight by spraying with separate streams of isocyanate and polyol to improve the coating integrity.

출처 및 근거

ORD 기록
ord-934a4dda2c42417181e6bc1c86a72d99
출처 데이터셋
uspto-grants-2015_11
특허 번호
US09174885B2

연결된 노트

불러오는 중…