SU139660A1 - The method of obtaining pure iron oxide - Google Patents

The method of obtaining pure iron oxide

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Publication number
SU139660A1
SU139660A1 SU695211A SU695211A SU139660A1 SU 139660 A1 SU139660 A1 SU 139660A1 SU 695211 A SU695211 A SU 695211A SU 695211 A SU695211 A SU 695211A SU 139660 A1 SU139660 A1 SU 139660A1
Authority
SU
USSR - Soviet Union
Prior art keywords
iron oxide
iron
pure iron
obtaining pure
calcium
Prior art date
Application number
SU695211A
Other languages
Russian (ru)
Inventor
В.М. Розовский
Original Assignee
В.М. Розовский
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by В.М. Розовский filed Critical В.М. Розовский
Priority to SU695211A priority Critical patent/SU139660A1/en
Application granted granted Critical
Publication of SU139660A1 publication Critical patent/SU139660A1/en

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  • Inorganic Compounds Of Heavy Metals (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Description

Известны способы получени  чистой окиси железа дл  железной активной массы щелочных аккумул торов из технического железного купороса, загр зненного примес ми марганца, кальци  и магни  путем термического разложени  его или гидратного осаждени  из раствора купороса; при этом дл  обеспечени  необходимой чистоты окиси железа исходный железный купорос подвергают перекристаллизации д а и более раз.Methods are known for producing pure iron oxide for iron active mass of alkaline batteries from technical ferrous sulfate contaminated with manganese, calcium, and magnesium impurities by thermal decomposition or hydrated precipitation from vitriol solution; at the same time, in order to provide the required purity of the iron oxide, the initial ferrous sulfate is subjected to recrystallization a or more times.

Трудоемкость процесса кристаллизации и большие потери железа относ тс  к недостаткам известных способов.The complexity of the crystallization process and the large iron losses are among the disadvantages of the known methods.

Известно, что в процессе перекристаллизации гидрат окиси железа выдел етс  из нейтральной среды, в то врем  как гидраты окислов кальци , магни  и марганца выдел ютс  из щелочной среды.It is known that in the process of recrystallization, iron oxide hydrate is released from a neutral medium, while hydrates of calcium, magnesium and manganese oxides are released from an alkaline medium.

Аммонийные соли,  вл  сь буферными соединени ми, при своем добавлении в щелочной раствор настолько понижают рН последнего, что позвол ют выделить в осадок только гидрат окиси железа.Ammonium salts, being buffer compounds, when they are added to an alkaline solution, lower the pH of the latter so much that they allow to precipitate only iron oxide hydrate.

Предложен способ получени  чистой окиси железа дл  железной активной массы щелочных аккумул торов из технического железного купороса, загр зненного примес ми марганца, кальци , магни  путем добавлени  солей аммони  (хлористых, сернокислых) перед осаждением железа щелочью.A method is proposed for producing pure iron oxide for iron active mass of alkaline batteries from technical ferrous sulfate contaminated with manganese, calcium, and magnesium impurities by adding ammonium salts (chloride, sulfate) before precipitating iron with alkali.

Предлагаемый способ отличаетс  от известных тем, что в раствор железного купороса перед осаждением железа щелочью добавл ют соли аммони  в количестве 5-7%.The proposed method differs from the known ones in that an ammonium salt in an amount of 5-7% is added to the solution of ferrous sulfate before precipitation of iron by alkali.

Способ позвол ет получать чистую окись железа с наименьщими потер ми последней и  вл етс  менее трудоемким перед известными способами, в св зи с устранением операции перекристаллизации исходного железного купороса.The method makes it possible to obtain pure iron oxide with the least loss of the latter and is less laborious in front of known methods, in connection with the elimination of the operation of recrystallization of the original iron vitriol.

№ 13966Q- 2 -Предмет изобре тени No. 13966Q- 2 - Subject to shadow invented

Способ получени  чистой окиси железа дл  железной активной массы щелочных аккумул торов из технического железного купороса, загр зненного примес ми марганца, кальци  и магни , отличающийс  тем, что в раствор железного купороса перед осаждением железа щелочью добавл ютс  небольшие количества (5-7%) соли аммони .The method of obtaining pure iron oxide for iron active mass of alkaline batteries from technical iron vitriol contaminated with manganese, calcium and magnesium impurities, characterized in that small amounts (5-7%) of salt are added to the solution of iron vitriol before precipitating iron with alkali ammonium.

SU695211A 1961-01-28 1961-01-28 The method of obtaining pure iron oxide SU139660A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU695211A SU139660A1 (en) 1961-01-28 1961-01-28 The method of obtaining pure iron oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU695211A SU139660A1 (en) 1961-01-28 1961-01-28 The method of obtaining pure iron oxide

Publications (1)

Publication Number Publication Date
SU139660A1 true SU139660A1 (en) 1961-11-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU695211A SU139660A1 (en) 1961-01-28 1961-01-28 The method of obtaining pure iron oxide

Country Status (1)

Country Link
SU (1) SU139660A1 (en)

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