Boussingaultite production process from liquid effluents containing magnesium sulphate

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9586835
APP PUB NO 20150298985A1
SERIAL NO

14688869

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Describes a method of producing a magnesium sulfate and hydrous ammonia double salt or Boussingaultite ((NH4)2SO4.MgSO4.6H2O), using as a source of magnesium a liquid effluent rich in magnesium sulfate originally from hydrometallurgical processes for the production of metals such as nickel, copper, rare earths. According to the invention, the process route for the production of Boussingaultite with physical properties suitable for use in fertilizer mixtures involves the steps of precipitating the Boussingaultite double salt, filtration and thermal drying.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
VALE S AAVENIDA GRACA ARANHA N 26 - CENTRO RIO DE JANEIRO 20030-900

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Avelar, Angela Nair Belo Horizonte, BR 1 0
Da, Silva Ruberlan Gomes Belo Horizonte, BR 1 0

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 7, 2028
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00