RO95470B1 - Process for recovering silver from photosensitive material waste - Google Patents

Process for recovering silver from photosensitive material waste

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Publication number
RO95470B1
RO95470B1 RO124162A RO12416286A RO95470B1 RO 95470 B1 RO95470 B1 RO 95470B1 RO 124162 A RO124162 A RO 124162A RO 12416286 A RO12416286 A RO 12416286A RO 95470 B1 RO95470 B1 RO 95470B1
Authority
RO
Romania
Prior art keywords
silver
photosensitive material
material waste
recovering silver
concentration
Prior art date
Application number
RO124162A
Other languages
Romanian (ro)
Other versions
RO95470A2 (en
Inventor
Sorin Parmac
Ion Costov
Florica Trestioreanu
Victor Beleaua
Ion Polgar
Marin Stanciu
Lica Turturica
Original Assignee
Institutul De Cercetari Si Proiectari Pentru Epurarea Apelor Reziduale
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 Institutul De Cercetari Si Proiectari Pentru Epurarea Apelor Reziduale filed Critical Institutul De Cercetari Si Proiectari Pentru Epurarea Apelor Reziduale
Priority to RO124162A priority Critical patent/RO95470B1/en
Publication of RO95470A2 publication Critical patent/RO95470A2/en
Publication of RO95470B1 publication Critical patent/RO95470B1/en

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Abstract

Procedeul de recuperare a argintului din deseuri materiale fotosensibile de diferite categorii, prin eventuala tocare, prevede spalarea cu solutie de hidroxid de sodiu minimum 1% concentratie, pentru solubilizarea stratului fotosensibil de pe suport, urmata de decantare flotatie si/sau filtrare, în vederea separarii slamului de argint care se usuca în continuare si se topeste cu fondanti alcalini pentru separarea argintului metalic; suportul, dupa spalare si uscare, se valorifica ulterior, iar solutia alcalina, dupa corectarea concentratiei, se recircula.The process of recovering silver from various types of photosensitive waste by crushing involves washing with a sodium hydroxide solution of at least 1% concentration to solubilize the photosensitive layer on the support followed by decantation of flotation and / or filtration in order to separate the silver slurry which is further dried and melted with alkali bases for the separation of silver metal; the support, after washing and drying, is subsequently recovered and the alkaline solution, after correcting the concentration, is recirculated.

RO124162A 1986-07-16 1986-07-16 Process for recovering silver from photosensitive material waste RO95470B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO124162A RO95470B1 (en) 1986-07-16 1986-07-16 Process for recovering silver from photosensitive material waste

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO124162A RO95470B1 (en) 1986-07-16 1986-07-16 Process for recovering silver from photosensitive material waste

Publications (2)

Publication Number Publication Date
RO95470A2 RO95470A2 (en) 1988-09-15
RO95470B1 true RO95470B1 (en) 1988-09-16

Family

ID=20119657

Family Applications (1)

Application Number Title Priority Date Filing Date
RO124162A RO95470B1 (en) 1986-07-16 1986-07-16 Process for recovering silver from photosensitive material waste

Country Status (1)

Country Link
RO (1) RO95470B1 (en)

Also Published As

Publication number Publication date
RO95470A2 (en) 1988-09-15

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