Water → Lead sulfate

HRID 1758213Notes

Reaction equation

HRID 1758213 reaction equation
[Pb:1](Cl)[Cl:2].O.[S:5]([O-:9])([O-:8])(=[O:7])=[O:6].[Ca+2:10]>[Cl-].[Na+].O>[S:5]([O-:9])([O-:8])(=[O:7])=[O:6].[Pb+2:1].[Cl-:2].[Ca+2:10].[Cl-:2]

Participants

6

Reactant 3

HCID 962WaterHCID 24459Lead chloride2×HCID 24497Calcium Sulfate

Product 2

HCID 24008Lead sulfateHCID 5284359Calcium Chloride

Reagents, catalysts & solvents 1

HCID 57417360Sodium chloride; waterSolvent

Procedure

Australian Pat. No. 28,957, (1971) describes a method of precipitating lead chloride from brine solution by cooling followed by reacting said lead chloride with water and calcium sulphate to produce a lead sulphate precipitate and calcium chloride solution. Although low chloride levels in the lead sulphate were obtainable with rigorous washing, the product is again suitable to lead smelters in limited quantities and must be treated on a sinter machine to remove sulphur before the blast. Capital and operating costs are projected to be high for the process since the brine solution must be heated for high lead solubility and then cooled for lead chloride precipitation.

Workup

  1. temperatureby cooling

Sources & evidence

ORD record
ord-a684ef09202843ed8a550da0cd5d706d
Source dataset
uspto-grants-1983_02
Patent number
US04372782

Reaction notes

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