Solid material comminution or disintegration – Processes – With classifying or separating of material
Patent
1983-08-01
1986-02-04
Goldberg, Howard N.
Solid material comminution or disintegration
Processes
With classifying or separating of material
294264, 241 58, 241 79, 241283, B02C 2308
Patent
active
045680299
ABSTRACT:
Apparatus for unloading particulate catalyst, e.g., cylindrically shaped catalyst, from a multiplicity of elongated reactor tubes is described. The apparatus comprises, in combination, a plurality of coaxial hollow pipe members contiguously arranged and bundled in a pattern reflecting the geometric pattern of the reactor tubes. Each pipe member has a cutting element having an axial passageway throughout its length and slots in the lower wall of the element affixed at one end. The pipe members and cutting elements have diameters smaller than the reactor tubes so that the pipe members can be inserted therein. The other end of the pipe members terminate within a manifold which is connected to a vacuum source. Vibratory means which deliver a downward force are attached to the manifold. In operation, the bundle of pipe members is positioned above the reactor and in line with reactor tubes filled with catalyst and open at both ends. The pipe members are lowered into the reactor tubes and onto the top of the column of catalyst therein. The vibrator and vacuum source are activated. The downward force and the cutting elements fracture the catalyst into smaller pieces. The cuttings so produced are removed by suction from the reactor tube. The catalyst so removed is collected and precious metal values thereof can be recovered.
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Burgin Billy B.
Morgan, Sr. Vernon R.
Newton Ceylon E.
Eley Timothy V.
Goldberg Howard N.
PPG Industries Inc.
Stein Irwin M.
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