Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyo CCI KK
TYK Corp
Original Assignee
Toyo CCI KK
TYK Corp
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Filing date
Publication date
Application filed by Toyo CCI KK, TYK CorpfiledCriticalToyo CCI KK
Priority to JP50083158ApriorityCriticalpatent/JPS527379A/en
Publication of JPS527379ApublicationCriticalpatent/JPS527379A/en
PURPOSE: Heavy metals mainly composed of V2O5 in waste catalysts are entrapped into the sulfuric acid produced by alkali neutralization, which are then solidified in a body with concrete as a matrix, and further the body is placed into a concrete box, whereby the heavy metals are shielded threefold from the outside.
COPYRIGHT: (C)1977,JPO&Japio
JP50083158A1975-07-081975-07-08Wet treatment process for waste catalysts of sulfuric acid production
PendingJPS527379A
(en)