Abstract: The present disclosure, in various embodiments, discloses hydrothermal methods, hydrothermally modified materials and dried hydrothermally modified materials. Certain dried hydrothermally modified materials can readily releases ionic species such as alkali metal ions (K+, Na+), silicate salts, and alkaline earth metal ions (Mg2+, Ca2+). Some dried hydrothermally modified materials can readily release aluminum ions and/or silicon, such as in the form of soluble silicates. Such processes and materials are useful, for example in economically preparing potassium releasing fertilizers.
Type:
Grant
Filed:
October 1, 2020
Date of Patent:
July 4, 2023
Assignees:
Massachusetts Institute of Technology (MIT), Advanced Potash Technologies Ltd
Inventors:
Davide Ciceri, Marcelo De Oliveira, Antoine Allanore, Dennis P. Chen, Thomas C. Close
Abstract: The present disclosure, in various embodiments, discloses hydrothermal methods, hydrothermally modified materials and dried hydrothermally modified materials. Certain dried hydrothermally modified materials can readily releases ionic species such as alkali metal ions (K+, Na+), silicate salts, and alkaline earth metal ions (Mg2+, Ca2+). Some dried hydrothermally modified materials can readily release aluminum ions and/or silicon, such as in the form of soluble silicates. Such processes and materials are useful, for example in economically preparing potassium releasing fertilizers.
Type:
Grant
Filed:
January 18, 2018
Date of Patent:
October 13, 2020
Assignees:
Massachusetts Institute of Technology, Advanced Potash Technologies Ltd
Inventors:
Davide Ciceri, Marcelo De Oliveira, Antoine Allanore, Dennis P. Chen, Thomas C. Close