Patent classifications
B01J20/3475
PURIFICATION METHODS USING SORBENTS AND PRESSURIZED LOW-POLARITY WATER EXTRACTION
A method for separating, purifying, and recovering components from a liquid feedstock. The method steps include (i) commingling the liquid feedstock with a sorbent whereby one or more components in the liquid feedstock are bound onto the sorbent, thereby producing a loaded sorbent; (ii) packing the loaded sorbent into a first temperature-controlled pressure-resistant column; (iii) sealably engaging the first temperature-controlled pressure-resistant column with a supply of water, and cooling equipment for receiving a flow of an eluate from the temperature-controlled pressure-resistant column; (iv) from the supply of water, producing a first flow of PLP water at a first selected temperature; (v) flowing the first flow of PLP water through the temperature-controlled pressure-resistant column thereby producing a first flow of the eluate therefrom, said eluate containing the one or more components; (vi) cooling the first flow of the eluate; and (vii) collecting the cooled first flow of the eluate.
PREPARATION METHOD FOR LITHIUM PHOSPHATE, PREPARATION METHOD FOR LITHIUM HYDROXIDE, AND PREPARATION METHOD FOR LITHIUM CARBONATE
The present invention relates to a method for producing lithium phosphate, comprising: passing a lithium-containing solution through an aluminum-based adsorbent to adsorb lithium on the aluminum-based adsorbent, passing the distilled water or an aqueous solution having a lower lithium concentration than the lithium-containing solution through the aluminum-based adsorbent on which the lithium is adsorbed to obtain a lithium-containing desorption solution, and putting a phosphorous supplying material in the lithium-containing desorption solution to obtain lithium phosphate
MULTIFUNCTIONAL POROUS MATERIALS FOR WATER PURIFICATION AND REMEDIATION
A variety of compositions and materials are provided for water purification and remediation. The compositions including multiple functionalities for treating a variety of pollutants or contaminants. The compositions can include a porous organic polymer with one or more of a variety of functional groups for binding the contaminants and with a hierarchical pore size distribution over a range of pore sizes to facilitate enhanced removal of the contaminants. Functional groups can include one, two, or more different functional groups such as amines, halides, ammoniums, pyridiuiums, thiols, imidazoliums, salts thereof, or others. The range of pore sizes can be about 1 nm to 10 nm or more. Contaminants can include antimony, arsenic, barium, beryllium, cadmium, chromium, copper, lead, mercury, selenium, technetium, thallium, uranium, radium, urea, and phosphate. Methods of removing the contaminants from water using the compositions are also provided.
POLYMER-FUNCTIONALIZED MAGNETIC PARTICLE EMBODIMENTS FOR SOLUTE SEPARATION, AND DEVICES AND SYSTEMS FOR USING THE SAME
Disclosed herein are embodiments of a polymer-functionalized particle for using in isolating and extracting solutes, such as rare earth metals, lithium, and the like. The polymer-functionalized particles exhibit strong resistance to agglomeration and degradation even in high ionic strength and/or temperature environments. A post-particle synthesis method for making the polymer-functionalized particle is disclosed, along with a magnetic separation device and that can be used in system embodiments to facilitate use and regeneration of the polymer-functionalized particles in solute extraction.
SUPPORTED METAL HYDROXIDE ADSORBENT FOR ULTRA-DEEP DESULFURIZATION OF GASOLINE AND METHODS FOR ITS PREPARATION AND ITS OXIDATIVE REGENERATION
This invention disclosure reported here a supported metal hydroxide adsorbent and a method for its preparation as well as a method for its oxidative regeneration. The supported metal hydroxide adsorbent comprises metal hydroxide and support with a mass ratio of 5-30:100. The adsorbent disclosed in present invention exhibited outstanding adsorption capacity and high selectivity to sulfur impurity in gasoline. The method of oxidative regeneration provides an efficient way for the recovery of the saturated adsorbent.
Desulfurized Tall Oil and Derivatives Thereof
A process for reducing or removing at least 90% of sulfur in a tall oil composition, e.g., to a level of 15 ppm or less is disclosed. The process employs at least a first desulfurization and a second desulfurization treatment in parallel or in series. The first treatment comprises adsorptive desulfurization, wherein the adsorbent material comprises silica adsorbent having an average pore size between 50-200 , BET surface area of at least 300 mm.sup.2/, pore volume of 1.20 to 3.00 cc/g, and a silanol [SiOH] level of 0.5 to 5 unit/nm.sup.2. The second desulfurization treatment is selected from adsorptive treatment, heat treatment, distillation, extraction, oxidation, reduction, hydrogenation, and sulfur scavenging for a reduced sulfur content.
METHOD FOR REMOVING A DEGRADED COMPONENT FROM A HYDROCARBON FLUID AND A POROUS MEDIUM FOR ACHIEVING THE SAME
A method of removing a degraded component from a hydrocarbon fluid includes: receiving the hydrocarbon fluid from a fluid source; directing the hydrocarbon fluid to a first porous medium capable of adsorbing the degraded component to produce a purified fluid that has a reduced amount of degraded component as compared to the hydrocarbon fluid; removing the purified fluid from the first porous medium; and regenerating the first porous medium with a regenerant. The porous medium can include a crosslinked polystyrene having at least one of a BET pore volume of greater than or equal to 0.6 mL/g or a surface area of 500 to 900 m.sup.2/g, or 500 to 850 m.sup.2/g as determined in accordance with to ISO 9277:2010.
Water detoxification by a substrate-bound catecholamine adsorbent
A bio-inspired method for detoxifying contaminated water is disclosed. In the method, polydopamine, a mussel-inspired adhesive catecholamine was used as an adsorbent to effectively remove from contaminated water three major classes of toxic agents: heavy metal ions (e.g., Cr, Hg, Pb, Cu, and Cd), toxic organic species (e.g., 4-aminopyridine), and radioisotopes (e.g., Lutetium-177). Furthermore, the polydopamine adsorbent was regenerated by treatment with acid or hydrogen peroxide.
Device and method for stabilizing wine and other vegetable beverages
A device and a method for stabilizing wine or other vegetable beverages by removal, in whole or in part, of agents responsible for instability, including proteins and metals, are provided. The device has a tubular container filled internally at least partly with particles of support material covered with a layer of a mesoporous nanostructured adsorbent material comprising titanium oxide, adapted to absorb proteins and metals.
METHOD FOR IMMOBILIZING LIGAND HAVING AMINO GROUP
A method is provided for strongly immobilizing a ligand by inactivating an excess formyl group. Methods are also provided for immobilizing a ligand on a formyl group-containing insoluble base material, where the ligand has a specific affinity for a target compound and also has an amino group. The methods comprise the steps of mixing the ligand with the formyl group-containing insoluble base material to form an imine, and reducing the imine by using two or more kinds of reducing agents.