Nitric Acid → Lanthanum sesquioxide

HRID 394414

반응식

HRID 394414 반응식
[O:1](Cl)Cl.[Zr:4].[OH-:5].[Zr+4].[OH-].[OH-].[OH-].[N+]([O-])(O)=[O:11].[Ce:14].[La:15]>>[O-2:1].[Zr+4:4].[O-2:11].[O-2:5].[Ce+3:14].[O-2:1].[O-2:1].[Ce+3:14].[O-2:1].[La+3:15].[O-2:1].[O-2:1].[La+3:15]

참가 물질

8

반응물 5

HCID 944Nitric AcidHCID 23926LanthanumHCID 23974CeriumHCID 84465Zirconium hydroxide (Zr(OH)4), (T-4)-2회HCID 71304769Chloro hypochlorite;zirconium

생성물 3

HCID 150906Lanthanum sesquioxideHCID 6452892Zirconium oxideHCID 9905479Cerium oxide

실험 절차

A zirconium-cerium-lanthanum composite oxide (Powder A1) was obtained by hydrolyzing a zirconium oxychloride solution thereby obtaining zirconium hydroxide, adding an aqueous nitric acid solution of cerium and lanthanum to the zirconium hydroxide and mixing them together, neutralizing the resultant mixture by addition of an alkali, washing, drying at 120° C. for two hours and calcining at 700° C. for one hour the product of neutralization, with the relevant components used in amounts calculated to form a weight ratio of 40 g of zirconium oxide, 20 g of cerium oxide, and 15 g of lanthanum oxide.

후처리

  1. additionmixing them together
  2. additionby addition of an alkali,
  3. washwashing
  4. customdrying at 120° C. for two hours

출처 및 근거

ORD 기록
ord-83c72e353ec04bd482eb10dab9a2277c
출처 데이터셋
uspto-grants-2003_08
특허 번호
US06602479B2

연결된 노트

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