METHOD FOR PREPARING ETHYLENE PROPYLENE
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United States of America Patent
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Issued Date -
Nov 2, 2023
app pub date -
Sep 15, 2021
filing date -
Sep 15, 2020
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Abstract
A device for mixing at least two granular materials has a first lifting tube used for loading first particles and a second lifting tube surrounding and coaxial to the first lifting tube and used for loading second particles. The upper part of said first lifting tube extends beyond the top of said second lifting tube, and at least part of the upper part of the first lifting tube and at least part of the upper part of the second lift tube are located inside a fast bed precipitator, allowing the first and second particles to be transported by means of the first and second lifting tubes to the interior of said fast bed precipitator and mixed.
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