RO88269B1 - Procedeu de recuperare a nichelului din catalizatorii uzati - Google Patents

Procedeu de recuperare a nichelului din catalizatorii uzati

Info

Publication number
RO88269B1
RO88269B1 RO112835A RO11283583A RO88269B1 RO 88269 B1 RO88269 B1 RO 88269B1 RO 112835 A RO112835 A RO 112835A RO 11283583 A RO11283583 A RO 11283583A RO 88269 B1 RO88269 B1 RO 88269B1
Authority
RO
Romania
Prior art keywords
nickel
filtration
concentration
spent catalysts
recovering nickel
Prior art date
Application number
RO112835A
Other languages
English (en)
Other versions
RO88269A2 (ro
Inventor
Mihai Vicol
Adrian Heves
Maria Potoroaca
Original Assignee
COMBINATUL DE îNGRASAMINTE CHIMICE
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 COMBINATUL DE îNGRASAMINTE CHIMICE filed Critical COMBINATUL DE îNGRASAMINTE CHIMICE
Priority to RO112835A priority Critical patent/RO88269B1/ro
Publication of RO88269A2 publication Critical patent/RO88269A2/ro
Publication of RO88269B1 publication Critical patent/RO88269B1/ro

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Landscapes

  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

Inventia se refera la un procedeu de recuperare a nichelului din catalizatorii uzati, care se supun extractiei selective cu o solutie amoniacala avînd concentratia de 23% NH3, la o temperatura de 60...90 degree C, si la un pH = 7,5...9, pîna la obtinerea unei solutii avînd concentratia în nichel de 26 g/l solutie care dupa filtrare este supusa tratarii la temperatura de 120...130 degree C, cu vapori de apa, obtinîndu-se hidroxid de nichel, la un pH de 5...7,5 iar dupa spalare, decantare si filtrare, hidroxidul de nichel este supus neutralizarii cu acid azoic 47% pîna la un pH de 4,5...6 obtinîndu-se dupa filtrare, concentrare, cristalizare si uscare, azotat de nichel de puritate avansata.
RO112835A 1983-12-13 1983-12-13 Procedeu de recuperare a nichelului din catalizatorii uzati RO88269B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO112835A RO88269B1 (ro) 1983-12-13 1983-12-13 Procedeu de recuperare a nichelului din catalizatorii uzati

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO112835A RO88269B1 (ro) 1983-12-13 1983-12-13 Procedeu de recuperare a nichelului din catalizatorii uzati

Publications (2)

Publication Number Publication Date
RO88269A2 RO88269A2 (ro) 1985-12-30
RO88269B1 true RO88269B1 (ro) 1985-12-31

Family

ID=20114007

Family Applications (1)

Application Number Title Priority Date Filing Date
RO112835A RO88269B1 (ro) 1983-12-13 1983-12-13 Procedeu de recuperare a nichelului din catalizatorii uzati

Country Status (1)

Country Link
RO (1) RO88269B1 (ro)

Also Published As

Publication number Publication date
RO88269A2 (ro) 1985-12-30

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