BR8700122A - Processo para recuperacao de elementos de terras raras - Google Patents

Processo para recuperacao de elementos de terras raras

Info

Publication number
BR8700122A
BR8700122A BR8700122A BR8700122A BR8700122A BR 8700122 A BR8700122 A BR 8700122A BR 8700122 A BR8700122 A BR 8700122A BR 8700122 A BR8700122 A BR 8700122A BR 8700122 A BR8700122 A BR 8700122A
Authority
BR
Brazil
Prior art keywords
recovery
land elements
rare land
rare
elements
Prior art date
Application number
BR8700122A
Other languages
English (en)
Inventor
Joao Duarte Neto
Original Assignee
Vale Do Rio Doce Co
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 Vale Do Rio Doce Co filed Critical Vale Do Rio Doce Co
Priority to BR8700122A priority Critical patent/BR8700122A/pt
Publication of BR8700122A publication Critical patent/BR8700122A/pt

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
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling
BR8700122A 1987-01-14 1987-01-14 Processo para recuperacao de elementos de terras raras BR8700122A (pt)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR8700122A BR8700122A (pt) 1987-01-14 1987-01-14 Processo para recuperacao de elementos de terras raras

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR8700122A BR8700122A (pt) 1987-01-14 1987-01-14 Processo para recuperacao de elementos de terras raras

Publications (1)

Publication Number Publication Date
BR8700122A true BR8700122A (pt) 1988-08-02

Family

ID=4041501

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8700122A BR8700122A (pt) 1987-01-14 1987-01-14 Processo para recuperacao de elementos de terras raras

Country Status (1)

Country Link
BR (1) BR8700122A (pt)

Similar Documents

Publication Publication Date Title
BR9001453A (pt) Processo para a recuperacao de terras raras de lama vermelha do processo bayer
BR8905564A (pt) Processo aperfeicoado para extrair cobre de minerais
BR8506435A (pt) Processo para conformacao por compressao de artigos metalicos
BR8700463A (pt) Processo para recuperacao de galio
BR8704474A (pt) Processo de laminacao
BR8705524A (pt) Processo para preparacao de compostos
BR7901424A (pt) Processo para separacao de terras raras
BR8902564A (pt) Processo para recuperar metacroleina
BR8602469A (pt) Processo para recuperacao de alcoois superiores alifaticos,normais,primarios
BR8602643A (pt) Processo para preparar compostos
BR8602044A (pt) Processo para recuperacao de oleo
BR8506312A (pt) Processo para a preparacao de n-formil-alfa-aspartil fenilalanina
BR9004677A (pt) Processo de recuperacao dos valores de terras raras contidos no gipso
IT1230108B (it) Filtro di processo
BR9007040A (pt) Processo para discriminar vasilhames de bebida recuperados
BR8603221A (pt) Processo de cloracao seletiva de compostos fenolicos
BR8702717A (pt) Processo de formacao de composto
BR9004542A (pt) Processo de tratamento de minerios contendo compostos de terras raras
BR8705526A (pt) Processo para preparacao de composto
BR8602420A (pt) Processo para formar butil-toluenodiamina monoterciario
BR9007872A (pt) Processo para recuperacao de areia de fundicao servida
BR8700122A (pt) Processo para recuperacao de elementos de terras raras
BR8601963A (pt) Processo para recuperacao de ouro
BR8703801A (pt) Processo para preparacao de composto
BR8504757A (pt) Processo para a remocao de impurezas compreendendo nitrilas e as referidas impurezas

Legal Events

Date Code Title Description
FF Decision: intention to grant
KD Notifcation of receipt (letter patent)
FBOS Technical and formal requirements: other requirements
FG Letter patent granted
B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection

Free format text: PATENTE EXTINTA EM 27/10/2008