摘要:
This invention relates to a method for preparing a lithium activated alumina intercalate solid by contacting a three-dimensional activated alumina with a lithium salt under conditions sufficient to infuse lithium salts into activated alumina for the selective extraction and recovery of lithium from lithium containing solutions, including brines.
摘要:
The present invention relates to a process for the preparation of iron-oxide- and/or iron-oxyhydroxide-containing ion exchangers by polymerizing iron-oxide- and/or iron-oxyhydroxide-containing mixtures and functionalizing the resultant polymers.
摘要:
Applicant has synthesized a family of novel non-pillared metal oxide compositions which have a triple layered perovskite structure and a surface area of at least 30 m.sup.2 /g. These compositions are described by the empirical formulaAB.sub.2 M.sub.3 O.sub.10-xwhere A is a monovalent exchangeable cation such as cesium, B is a divalent or trivalent cation such as strontium or lanthanum and M is a +2, +3, +4 or a +5 valent metal such as niobium, titanium, aluminum or copper.
摘要:
An ion-exchanger is provided which comprises zirconium hydroxide supported on active carbon. The process for producing the ion-exchanger, and a process for removing a multiply charged anion are also provided which employ the ion-exchanger. The ion-exchanger of the present invention has high chemical resistance, high heat resistance, high mechanical strength, and excellent ion exchange characteristics.
摘要:
A method for separating sodium and potassium from an aqueous solution containing such metals, which comprises selectively ion-exchanging sodium and potassium with titania hydrate (TiO.sub.2 .multidot.nH.sub.2 O where n=1 to 2) obtained by treating potassium titanate to remove potassium therefrom, followed by a reaction at a temperature of from 25.degree. to 80.degree. C. to desorb and purify sodium and potassium.
摘要:
A CONTINUOUS CYCLIC PROCESS FOR CONTACTING ION EXCHANGE RESIN WITH TWO OR MORE LIQUIDS IN A PLURALITY OF SERIALLY CONNECTED U-SHAPED COLUMNS INCLUDES INTRODUCING A FIRST LIQUID INTO A FIRST U-SHAPED COLUMN LOOP WHEREUPON A COMPONENT THEREOF IS ABSORBED ON THE ION EXCHANGE RESIN THEREIN. A SECOND LIQUID IS INTRODUCED INTO A SECOND COLUMN WHICH CONTAINS A PORTION OF THE ION EXCHANGE RESIN PREVIOUSLY CONTAINED IN THE FIRST COLUMN LOOP SERIALLY CONNECTED THEREWITH, SAID PORTION OF THE ION EXCHANGE RESIN HAVING ABSORBED THEREON THE COMPONENT FROM SAID FIRST LIQUID. THE SECOND LIQUID HAS A FIRST COMPONENT EXCHANGEABLE WITH THE COMPONENT FROM THE FIRST LIQUID ON THE ION EXCHANGE RESIN AND A SECOND COMPONENT COMBINABLE WITH THE COMPONENT FROM THE FIRST LIQUID WHICH IS RELEASED FROM THE ION EXCHANGE RESIN DURING THE EXCHANGE. A PRODUCT WHICH IS THE COMBINATION OF THE SECOND COMPONENT OF THE SECOND LIQUID AND THE RELEASED COMPONENT OF THE FIRST LIQUID IS THEN REMOVAL FROM THE SECOND COLUMN LOOP.
摘要:
The present invention relates to recovery of lithium from liquid resources to produce lithium solutions while limiting impurity precipitation in the lithium solutions.
摘要:
An aspect of the disclosure relates to a dialysate regenerator, including: a purification means; at least one reversible retainer including an ion reservoir; a dialysate flow path including a dialysate inlet for receiving a dialysate, a dialysate outlet for dispensing the dialysate, the purification means and the at least one reversible retainer: a pump connected to the dialysate flow path and configured to generate a flow of the dialysate from the dialysate inlet via the reversible retainer and the purification means to the dialysate outlet, wherein a direction of the dialysate flow path through the reversible retainer is reversible.
摘要:
The present invention provides a particulate cobalt ion adsorbent which has a high adsorption capacity. A particulate cobalt ion adsorbent which contains potassium hydrogen dititanate hydrate represented by chemical formula K2-XHxO.2TiO2.nH2O (wherein x is 0.5 or more and 1.3 or less, and n is greater than 0), and no binder, wherein the particulate cobalt ion adsorbent has a particle size range of 150 μm or more and 1000 μm or less.