Pedosphere-improving granulate, method for producing same, and use thereof
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United States of America Patent
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Dec 5, 2023
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app pub date -
Nov 30, 2018
filing date -
Feb 1, 2018
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Abstract
A method for producing a pedosphere-improving granulate (6) and granulate itself, the method includes a) producing a raw material dispersion including at least one inorganic secondary phosphate (1) and at least one reaction agent (2) in a liquid phase (4), b) separating part of the liquid phase (4) from the raw material dispersion, c) granulating and/or extruding the remaining raw material dispersion with a reduced liquid phase (4), d) either returning the liquid phase (4) separated in process step b) to process step a) in order to produce a raw material dispersion without at least partly separating (5) heavy metals or at least partly separating heavy metals (7) from the liquid phase (4) separated in process step b) and discharging the heavy metals (7) out of the process in a manner analogous to process step a) and/or returning the liquid phase to process step c), and e) repeating process steps a) to d).
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