METHOD OF UTILISATION OF A PROCESSED COPPER-AMMONIUM SOLUTION Russian patent published in 2017 - IPC C22B15/00 C22B3/44 C23G1/36 

Abstract RU 2622072 C1

FIELD: chemistry.

SUBSTANCE: method involves treating the spent concentrated copper-ammonia solution with a solution of hydrochloric or sulfuric acid to a pH of 5.5-6.5 to separate the copper ions in the form of a precipitate of copper hydroxide. Then, the ammonium ion is isolated by introducing a solution of sodium hydroxide into the filtrate after separation of the copper hydroxide solution to pH 8.5-9.5, sodium hydrogen phosphate and chloride or magnesium sulfate to form a sparingly soluble magnesium ammonium phosphate compound. In this case, the treatment of the initial solution is carried out at a temperature of 10-25°C.

EFFECT: method allows a relatively small amount of reagents, once they are introduced, to return to production copper and produce the final product - a fertiliser containing ammonium nitrogen.

1 tbl

Similar patents RU2622072C1

Title Year Author Number
METHOD OF REGENERATIVE PURIFICATION OF COPPER-AMMONIA ETCHING SOLUTIONS 2007
  • Pashajan Ararat Aleksandrovich
  • Pashajan Aleksandr Araratovich
  • Shchetinskaja Ol'Ga Stefanovna
RU2334023C1
METHOD OF REGENERATION TREATMENT OF ALKALINE SOLUTIONS OF COPPER COATING 2007
  • Pashajan Ararat Aleksandrovich
  • Pashajan Aleksandr Araratovich
RU2343225C2
METHOD OF EXTRACTING COPPER (+2) FROM SPENT SOLUTIONS 2014
  • Afonin Evgenij Gennadievich
RU2568225C1
METHOD FOR REGENERATION PURIFICATION OF COPPER-TARTRATE ALKALI GALVANIC ELECTROLYTES 2014
  • Pashajan Ararat Aleksandrovich
  • Karmanov Denis Aleksandrovich
  • Pashajan Aleksandr Araratovich
RU2572957C1
METHOD OF PRODUCTION OF CUPPER (I) THIOCYONATE (I)THE LUMP SUGAR MASSECUITE OUT OF THE CANE-SUGAR RAW 2004
  • Afonin Evgenij Gennadievich
RU2289545C2
METHOD OF PRODUCING COPPER PHOSPHATE MONOHYDRATE (+2)-AMMONIUM FROM PRODUCTION WASTES 2014
  • Afonin Evgenij Gennadievich
RU2579107C1
METHOD OF PROCESSING COPPER-AMMONIA SOLUTIONS 1992
  • Pisaruk V.I.
  • Falendysh N.F.
  • Demchenko V.Ja.
  • Shul'Zhenko O.F.
  • Pinchuk V.P.
  • Noga B.V.
RU2016103C1
METHOD FOR PREPARING COPPER (II) ACETATE MONOHYDRATE 2003
  • Afonin E.G.
RU2246480C1
METHOD FOR PREPARING DICOPPER (II) ETHYLENEDIAMINETETRAACETATE 2002
  • Afonin E.G.
RU2235719C2
METHOD FOR PREPARING BIS-[(1-HYDROXYETHANE-1,1-DIPHOSPHONATO(2-)] AMMONIUM CUPRATE (II) DIHYDRATE 2002
  • Afonin E.G.
RU2230070C2

RU 2 622 072 C1

Authors

Perelygin Yurij Petrovich

Kireev Sergej Yurevich

Zueva Tatyana Vladimirovna

Zorkina Olga Vladimirovna

Dates

2017-06-09Published

2016-01-11Filed