Lactic Acid → Titanium lactate, 50% in glycerol

HRID 1076155Notes

Reaction equation

HRID 1076155 reaction equation
[C:1]([OH:6])(=[O:5])[C:2]([OH:4])=[O:3].[Cl-].[Ti+4:8].[Cl-].[Cl-].[Cl-].[Ti].[NH4+].[OH-].[C:15]([OH:20])(=[O:19])[CH:16]([CH3:18])[OH:17]>C([O-])(=O)C(C)O.[Zr+4].C([O-])(=O)C(C)O.C([O-])(=O)C(C)O.C([O-])(=O)C(C)O.O>[C:1]([O-:6])(=[O:5])[C:2]([O-:4])=[O:3].[Ti+4:8].[C:1]([O-:6])(=[O:5])[C:2]([O-:4])=[O:3].[C:15]([O-:20])(=[O:19])[CH:16]([CH3:18])[OH:17].[Ti+4:8].[C:15]([O-:20])(=[O:19])[CH:16]([CH3:18])[OH:17].[C:15]([O-:20])(=[O:19])[CH:16]([CH3:18])[OH:17].[C:15]([O-:20])(=[O:19])[CH:16]([CH3:18])[OH:17]

Participants

9

Reactant 5

HCID 612Lactic AcidHCID 971Oxalic Acid2×HCID 14923Ammonium HydroxideHCID 23963TitaniumHCID 160960Diamminetetrachlorotitanate(IV)

Product 2

HCID 161092Titanium lactate, 50% in glycerolHCID 9815934Titanium oxalate

Reagents, catalysts & solvents 2

HCID 14475308Tetrakis[2-(hydroxy-kappaO)propanoato-kappaO]zirconiumCatalystHCID 962WaterSolvent2×

Procedure

A precipitate of zirconium lactate was prepared by mixing an aqueous solution of 0.3 mole zirconium oxychloride (ZrOCl2) assaying 17.9% ZrO2 with 0.9 mole of lactic acid (H6C3O3). The resulting thick slurry was filtered and the precipitate was washed with distilled water and reslurried therein. To the second slurry, which had a pH of about 1.85, there was slowly added 0.1 mole calcium oxide with stirring. During this addition, the pH increased and was finally adjusted to 7.5 by addition of NH4OH. The calcium ammonium trilactatozirconate formed was completely soluble in the water present. A solution of titanium oxalate was prepared by stirring 0.15 mole of oxalic acid into 100 ml of an aqueous titanium chloride solution containing approximately 0.1 gram atom of titanium. Sufficient water was added to ensure complete solution of the oxalic acid. This solution was run into about 4 times its volume of water simultaneously with a 50% NH4OH solution at such a rate as to maintain the pH of the mixture at 9.0. The resulting precipitate was filtered and washed with distilled water and was then dissolved in 0.37 mole of lactic acid (H6CO3), as an 85% aqueous solution, to form a titanium lactate solution.

Workup

  1. temperatureto maintain the pH of the mixture at 9.0
  2. filtrationThe resulting precipitate was filtered
  3. washwashed with distilled water

Sources & evidence

ORD record
ord-897f2d85face4fda9ab7375b15536139
Source dataset
uspto-grants-1976_05
Patent number
US03956226

Reaction notes

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