Assertion: tartaric acid | /r/CapableOf | separate precipitated zinc salts
Facets:
value: by filtration
type: MANNER
value: by reaction with oxalic acid
type: MANNER
value: into the corresponding acids
type: OTHER
Source sentences:
text: A process for the production of tartaric acids which comprises oxidizing a carbohydrate in an aqueous solution with nitric acid with formation of dextro and meso tartaric acids and oxalic acid, separating oxalic acid from liquid, precipitating dextro and meso tartaric acids and residual oxalic acid in the form of zinc salts, separating thus precipitated zinc salts, and converting the zinc dextro and meso tartrates into the corresponding acids by reaction with an acid which forms a zinc salt of greater insolubility than the tartrates.
text: A process for the production of tartaric acids which comprises oxidizing a carbohydrat in an aqueous solution with nitric acid with formation of dextro and meso tartaric acids and oxalic acid, separating oxalic acid from liquid, precipitating dextro and meso tartaric acids and residual oxalic acid through the addition of zinc carbonate to about 60%70% neutralization and in heated condition, separating thus precipitated zinc salts, and converting the zinc dextro and meso tartrates into the corresponding acids by reaction with oxalic acid.
text: A process for the production of tartaric acids which comprises oxidizing a carbohydrate in an aqueous solution with nitric acid with formation 01' dextro and meso tartaric acids and oxalic acid, separating oxalic acid from liquid,precipitating dextro and meso tartaric acids and residual oxalic acid in the form of zinc salts, separating thus precipitated zinc salts by filtration, con- -verting zinc tartrates into the corresponding acids by reaction with oxalic acid, and further oxidizing the filtrate from the separation of zinc salts with subsequent separation of oxalic acid, and precipitation, separation and conversion into dextro and meso tartaric acids in the foregoing manner.