Nitrate → Zinc Phosphate

HRID 441282

반응식

HRID 441282 반응식
[Zn:1].[F-].F[Si-2](F)(F)(F)(F)F.[P:10]([O-:14])([O-:13])([O-:12])=[O:11].[N+]([O-])([O-])=O.N([O-])=O.[OH:22][P:23]([OH:26])([OH:25])=[O:24]>[Ni].O>[P:10]([O-:14])([O-:13])([O-:12])=[O:11].[Zn+2:1].[P:23]([O-:26])([O-:25])([O-:24])=[O:22].[Zn+2:1].[Zn+2:1]

참가 물질

9

반응물 6

HCID 943NitrateHCID 946NitriteHCID 1004Phosphoric AcidHCID 1061PhosphateHCID 23994ZincHCID 28179Fluoride Ion

생성물 1

HCID 24519Zinc Phosphate

시약·촉매·용매 2

HCID 935Nickel촉매HCID 962Water용매2회

반응 조건

온도
150 fahrenheit

실험 절차

An aqueous acidic zinc phosphate coating solution was prepared in a five-gallon laboratory spray tank to contain 1.2 g/l zinc ions, 1.0 g/l nickel ions, 1.0 g/l fluoride added as silicofluoride, 5.0 g/l phosphate ions, 2.0 g/l nitrate ions, and 0.1 g/l nitrite ions. This solution, when heated to 150° F., and when titrated in the conventional manner, was found to have a total acid of between 13.0 and 14.6 points, and a free acid of between 1.0 and 1.3 points. In a second spray tank, a conventional alkaline cleaner was prepared at a concentration of one ounce per gallon and was heated to 145°-150° F. A third spray tank was used to contain the melamine-formaldehyde resin/tannin post-treatment solutions detailed in Table XVIII. A number of 4 × 12 inch SAE 1010, cold rolled steel panels (CRS) and 4 × 12 inch minimum spangle commercial hot-dipped galvanized panels (GALV), temper rolled one percent, were sprayed in the sequence one minute cleaner, one-half minute fresh warm water spray rinse, 1 minute zinc phosphate solution, one-half minute cold water rinse, and one-half minute melamine-formaldehyde resin/tannin solution detailed in the table, after which they were dried in a circulating air oven for 5 minutes at 325° F. Control panels were prepared in the same manner except that they were oven dried following a one-half minute tap water rinse and a one-half minute deionzed water rinse, or alternatively treated in a commercial post-treatment solution containing about 0.04% chromic acid at a pH of about 4 at 80° F. for one-half minute following the cold water rinse and oven dried. Other control panels were prepared in the same manner except that they were treated in a solution containing 0.25 g/l of tannin T9 at a pH of 4.6 (adjusted with H3PO4) at 80° F. for one-half minute following the cold water rinse and oven dried. In this example, all panels were oven dried for 5 minutes at 325° F.

후처리

  1. customIn a second spray tank, a conventional alkaline cleaner was prepared at a concentration of one ounce per gallon
  2. temperaturewas heated to 145°-150° F
  3. customwere sprayed in the sequence one minute
  4. washrinse, 1 minute zinc phosphate solution, one-half minute cold water
  5. washrinse
  6. customafter which they were dried in a circulating air oven for 5 minutes at 325° F
  7. customControl panels were prepared in the same manner except that they
  8. customdried
  9. washrinse
  10. washrinse
  11. additionalternatively treated in a commercial post-treatment solution
  12. additioncontaining about 0.04% chromic acid at a pH of about 4 at 80° F. for one-half minute
  13. washrinse
  14. customoven dried
  15. customOther control panels were prepared in the same manner except that they
  16. additionwere treated in a solution
  17. washrinse
  18. customoven dried
  19. customdried for 5 minutes at 325° F.

출처 및 근거

ORD 기록
ord-f299400b74c84b91b45043d4178269d6
출처 데이터셋
uspto-grants-1977_08
특허 번호
US04039353

연결된 노트

불러오는 중…