Sulfuric Acid → Zirconium hydroxide (Zr(OH)4), (T-4)-

HRID 718479

반응식

HRID 718479 반응식
[Si:1]([O-])([O-])([O-])[O-:2].[Na+].[Na+].[Na+].[Na+].S(=O)(=O)(O)[OH:11].[O:15](Cl)Cl.[Zr:18].[OH-:19].[Na+].[O:21]=[Al-:22]=O.[Na+]>[O-2].[Ti+4].[O-2].O>[OH-:2].[Si+4:1].[OH-:11].[OH-:15].[OH-:21].[OH-:19].[Zr+4:18].[OH-:2].[OH-:2].[OH-:2].[OH-:2].[Al+3:22].[OH-:2].[OH-:2]

참가 물질

10

반응물 5

HCID 1118Sulfuric Acid2회HCID 14766Sodium aluminateHCID 14798Sodium HydroxideHCID 26051Sodium orthosilicateHCID 71304769Chloro hypochlorite;zirconium

생성물 3

HCID 84465Zirconium hydroxide (Zr(OH)4), (T-4)-HCID 10176082Aluminum HydroxideHCID 23617461Silicon(4+) tetrahydroxide

시약·촉매·용매 2

HCID 162651Titanium oxide (Ti3O)촉매HCID 962Water용매

반응 조건

온도
90 °C

실험 절차

Fine titanium oxide particle (Sakai Chemical Industry Co., Ltd., STR-100N) was added to water, to prepare 150 g/L aqueous slurry of TiO2. This slurry (5.0 L) was heated to 90° C. under stirring. While maintaining this temperature, a 150 g/L aqueous solution of sodium silicate, which corresponded to 6% by mass (in terms of SiO2) of TiO2, was added to the slurry. Then, 30% sulfuric acid was added thereto over 180 minutes such that the pH of the slurry should be 9. The resultant slurry was aged for 60 minutes. Next, under stirring, the temperature of the slurry was regulated so as to be 45° C. While the pH of the slurry was maintained to 8.5, a 100 g/L aqueous solution of zirconium oxychloride, which corresponded to 3.0% by mass (in terms of ZrO2) of TiO2, and 30% aqueous sodium hydroxide were added to the slurry as a single portion over 90 minutes. The resultant slurry was aged for 30 minutes. Then, under stirring, while the pH of the slurry was maintained to 8.5, a 250 g/L aqueous solution of sodium aluminate, which corresponded to 4.5% by mass (in terms of Al2O3) of TiO2, and 30% sulfuric acid were added to the slurry as a single portion over 120 minutes. The resultant slurry was aged for 30 minutes. Thus, on the surface of TiO2, coating layers of silicon hydroxide, zirconium hydroxide, and aluminum hydroxide were formed in the order as set forth.

후처리

  1. customto prepare 150 g/L aqueous slurry of TiO2
  2. temperatureWhile maintaining this temperature
  3. additionwas added to the slurry
  4. waitThe resultant slurry was aged for 60 minutes
  5. stirringNext, under stirring
  6. customto be 45° C
  7. temperatureWhile the pH of the slurry was maintained to 8.5
  8. additionwere added to the slurry as a single portion over 90 minutes
  9. waitThe resultant slurry was aged for 30 minutes
  10. stirringThen, under stirring, while the pH of the slurry
  11. temperaturewas maintained to 8.5
  12. additionwere added to the slurry as a single portion over 120 minutes
  13. waitThe resultant slurry was aged for 30 minutes

출처 및 근거

ORD 기록
ord-95f5547fb1f149799f092f4895268fd6
출처 데이터셋
uspto-grants-2015_11
특허 번호
US09193871B2

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