Processing of solid mixed waste containing radioactive and hazardous materials

Patent · Tue May 12 00:00:00 EDT 1998

OSTI ID:871539

Gotovchikov, Vitaly T ^[1]; Ivanov, Alexander V ^[1]; Filippov, Eugene A ^[1]

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1. Moscow, RU

Apparatus for the continuous heating and melting of a solid mixed waste bearing radioactive and hazardous materials to form separate metallic, slag and gaseous phases for producing compact forms of the waste material to facilitate disposal includes a copper split water-cooled (cold) crucible as a reaction vessel for receiving the waste material. The waste material is heated by means of the combination of a plasma torch directed into the open upper portion of the cold crucible and an electromagnetic flux produced by induction coils disposed about the crucible which is transparent to electromagnetic fields. A metallic phase of the waste material is formed in a lower portion of the crucible and is removed in the form of a compact ingot suitable for recycling and further processing. A glass-like, non-metallic slag phase containing radioactive elements is also formed in the crucible and flows out of the open upper portion of the crucible into a slag ingot mold for disposal. The decomposition products of the organic and toxic materials are incinerated and converted to environmentally safe gases in the melter.

• Assignee: Institute of Chemical Technology (PlasTech) (Moscow, RU)
• Patent Number(s): US 5750822
• Application Number: 08/557,961
• OSTI ID: 871539
• Country of Publication: United States
• Language: English

Related Subjects

/588/110/219/
active element
active elements
apparatus
bearing
bearing radioactive
coils
coils disposed
cold
combination
compact
containing
containing radioactive
continuous
continuous heating
converted
copper
crucible
decomposition
decomposition products
directed
disposal
disposed
electromagnetic
electromagnetic field
electromagnetic fields
elements
environmentally
environmentally safe
facilitate
facilitate disposal
fields
flows
flux
flux produced
form
form separate
formed
forms
gaseous
gaseous phase
gaseous phases
gases
glass-like
hazardous
hazardous material
hazardous materials
heated
heating
incinerated
induction
induction coil
induction coils
ingot
magnetic field
magnetic fields
magnetic flux
material
materials
means
melter
melting
metallic
metallic phase
mixed
mixed waste
mold
non-metallic
organic
phase
phase containing
phases
plasma
plasma torch
portion
processing
produced
producing
products
radioactive
radioactive element
radioactive elements
reaction
reaction vessel
receiving
recycling
removed
safe
separate
separate metal
separate metallic
slag
solid
solid mixed
split
suitable
torch
toxic
toxic materials
transparent
upper
upper portion
vessel
waste
waste bearing
waste containing
waste material
water-cooled