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RU93029262A - METHOD OF OBTAINING IRON POWDER FROM SALTY ACID GRASS SOLUTIONS - Google Patents

METHOD OF OBTAINING IRON POWDER FROM SALTY ACID GRASS SOLUTIONS

Info

Publication number
RU93029262A
RU93029262A RU93029262/02A RU93029262A RU93029262A RU 93029262 A RU93029262 A RU 93029262A RU 93029262/02 A RU93029262/02 A RU 93029262/02A RU 93029262 A RU93029262 A RU 93029262A RU 93029262 A RU93029262 A RU 93029262A
Authority
RU
Russia
Prior art keywords
iron powder
solutions
obtaining iron
salty acid
recovery
Prior art date
Application number
RU93029262/02A
Other languages
Russian (ru)
Other versions
RU2038195C1 (en
Inventor
Д.И. Рыжонков
В.В. Левина
Т.В. Самсонова
Е.В. Дроздова
Original Assignee
Московский институт стали и сплавов
Filing date
Publication date
Application filed by Московский институт стали и сплавов filed Critical Московский институт стали и сплавов
Priority to RU93029262A priority Critical patent/RU2038195C1/en
Priority claimed from RU93029262A external-priority patent/RU2038195C1/en
Application granted granted Critical
Publication of RU2038195C1 publication Critical patent/RU2038195C1/en
Publication of RU93029262A publication Critical patent/RU93029262A/en

Links

Claims (1)

Изобретение относится к способам переработки отработанных травильных растворов. Целью изобретения является повышение дисперсности железного порошка. Способ получения железного порошка с удельной поверхностью 10 - 30 м2/г из солянокислых травильных растворов включает осаждение гидроксида железа в реакторе с непрерывным перемешиванием, его сушку и восстановление при нагреве до железного порошка. Подачу солянокислого травильного раствора и раствора аммика ведут раздельно и дозировано со скоростями V1 и V2 соответственно, причем 1,1 < V1 / V2 < 2,4, обеспечивая при этом постоянство pH, а обезвоживание и восстановление полученного гидроксида железа осуществляют одновременно в восстановительной среде при 350 - 400oС.The invention relates to methods for processing waste pickling solutions. The aim of the invention is to increase the dispersion of the iron powder. The method of obtaining iron powder with a specific surface area of 10–30 m 2 / g from hydrochloric acid pickling solutions involves the precipitation of iron hydroxide in a reactor with continuous stirring, its drying and recovery by heating to iron powder. The flow of pickling hydrochloric acid solution and ammonia solution is carried out separately and dosed at speeds of V 1 and V 2, respectively, with 1.1 <V 1 / V 2 <2.4, while ensuring constant pH, and the dehydration and recovery of the obtained iron hydroxide in a reducing environment at 350 - 400 o C.
RU93029262A 1993-06-11 1993-06-11 Method for production of iron powder from hydrochloric acid pickling solution RU2038195C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU93029262A RU2038195C1 (en) 1993-06-11 1993-06-11 Method for production of iron powder from hydrochloric acid pickling solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU93029262A RU2038195C1 (en) 1993-06-11 1993-06-11 Method for production of iron powder from hydrochloric acid pickling solution

Publications (2)

Publication Number Publication Date
RU2038195C1 RU2038195C1 (en) 1995-06-27
RU93029262A true RU93029262A (en) 1996-01-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU93029262A RU2038195C1 (en) 1993-06-11 1993-06-11 Method for production of iron powder from hydrochloric acid pickling solution

Country Status (1)

Country Link
RU (1) RU2038195C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030097907A1 (en) * 2001-11-28 2003-05-29 Carroll Daniel F. Methods of producing composite powders

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