Phosphoric Acid → Phosphonato phosphate;titanium(4+)

HRID 3056

反応式

HRID 3056 の反応式
[O-2].[O-2].[Ti+4:3].P(=O)(O)(O)O.[O:9]=[P:10]12[O:21]P3([O:22][P:12]([O:14]P(O3)([O:17]1)=O)(=[O:13])[O:11]2)=O>>[O-:17][P:10]([O:11][P:12]([O-:22])([O-:14])=[O:13])(=[O:9])[O-:21].[Ti+4:3]

参加物

4

反応物 3

HCID 1004Phosphoric AcidHCID 14812Phosphorus oxide (P4O10)2 回HCID 162651Titanium oxide (Ti3O)3 回

生成物 1

HCID 20283883Phosphonato phosphate;titanium(4+)

実験手順

The method of the present invention generally involves the mixture of titanium dioxide and hot concentrated phosphoric acid in a reaction vessel. The reaction mixture has a phosphorus pentoxide to titanium dioxide mole ratio greater than one. Preferably, the phosphorus pentoxide to titanium dioxide mole ratio is about 1.06 or more, and most preferably about 1.20 to about 1.25. The reactants are thoroughly mixed and heated at temperatures of about 400° C. to about 500° C. to produce a fine titanium pyrophosphate powder having a significantly higher fines yield over conventional titanium pyrophosphate processes. The fines yield is greater than 90% when using a phosphorus pentoxide to titanium dioxide mole ratio of about 1.20 to about 1.25.

後処理

  1. additionThe reactants are thoroughly mixed
  2. temperatureheated at temperatures of about 400° C. to about 500° C.

出典と根拠

ORDレコード
ord-9102e88c394640fc8efd773b9c3e0835
出典データセット
uspto-grants-1998_03
特許番号
US05733519

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