Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Patent
1991-06-05
1992-10-13
Morris, Theodore
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
134 10, 134 11, 134 18, 134 2219, 134 251, 134 254, 134 39, 134 40, 134 41, 134 42, B08B 308, B08B 310, B08B 908
Patent
active
051547767
ABSTRACT:
The present disclosure is directed to a method and apparatus for removing sludge and reactive metallic deposits, primarily sodium, from a reaction vessel. The process involves circulating under an inert atmosphere a solvent which covers the reactive metal and which solvent removes sludge and other sediments in the vessel including greases, processed salts, etc. Preferably, the process is carried out at a slightly elevated temperature perhaps 120.degree. F. or more. Water or primary alcohols or a mix is added ratably to react with the reactive metal until it is completely removed. The discharge temperature is permitted to increase to perhaps 190.degree. F. and is preferably kept below 245.degree. F. to assure relatively easy handling of the solvent discharge. Recirculation is continued after cooling, sparging, settling to remove impurities picked up in the vessel and recirculation. An apparatus is also disclosed.
REFERENCES:
patent: 4666528 (1987-05-01), Arrington et al.
patent: 4908137 (1990-03-01), Chen et al.
El-Arini Zeinab
Morris Theodore
LandOfFree
Method for decontamination of vessels and other equipment pollut does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for decontamination of vessels and other equipment pollut, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for decontamination of vessels and other equipment pollut will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1298085