An adsorption process for acquiring lithium from brine, in which the desorption occurs with an eluent, whereby the eluent is a mixture of water and acetic acid and/or water and sodium peroxydisulfate and/or water and ammonium peroxydisulfate.

Activated carbon for removal of sulfur containing materials from fluids. The activated carbon has a high sulfur capacity and can be manufactured without the addition of a catalyst. Lignite is treated to provide an activated carbon with a high mesoporosity and total surface area. The starting material has a high ash content, such as greater than 10% by weight.

Porous zirconia particles exhibit high specificity to a protein to be immobilized thereto and are used in immobilization of the protein. The porous zirconia particles have a pore diameter D50, at which a ratio of a cumulative pore volume to a total pore volume is 50%, the pore diameter D50 being in a range of 3.20 nm or more and 6.50 nm or less; and a pore diameter D90, at which a ratio of a cumulative pore volume to a total pore volume is 90%, the pore diameter D90 being in a range of 10.50 nm or more and 100.00 nm or less. The total pore volume of the particles is greater than 0.10 cm.sup.3/g. D50, D90, and the total pore volume are determined based on a pore diameter distribution measured through a BET method.

A method and reactor are disclosed for separating and removing heavy metals from wastewater using a sulfhydryl-modified nano-magnetized activated carbon. The method includes the steps of preparing a sulfhydryl-modified nano-magnetized activated carbon first; introducing heavy-metal-containing wastewater into a reactor which is equipped with a stirrer and keeping stirring, and then adding the sulfhydryl-modified nano-magnetized activated carbon, continuously stirring for a reaction; after reacting for a period, precipitating under a magnetic field generated by a magnet separator, discharging the resulting supernate, and then discharging the precipitated sludge.

The invention relates to absorbent compositions comprising soybean hulls and soybean hull biochar, methods of preparing such absorbent compositions, and methods of using such compositions in the preparation of articles of manufacture.

The present invention relates to new zeolitic adsorbent materials which are particularly specific and adapted for the non-cryogenic separation of gases, and more particularly for the separation of nitrogen by adsorption in gas streams such as air, and also for the purification of hydrogen by adsorption of carbon monoxide (CO) and/or nitrogen (N.sub.2), and also to the use thereof especially for the preparation of medical oxygen in oxygen concentrators for respiratory assistance.

A sorbent product, including from about 1 wt % to about 99 wt %, based on the total weight of the sorbent product, of at least one base sorbent material; and from about 1 wt % to about 99 wt %, based on the total weight of the sorbent product, of at least one binder. The sorbent product may further include at least from about 0 wt % to about 99% wt %, based on the total weight of the sorbent product, of at least one additional additive. Methods for making same and methods and systems for controlling multiple pollutants are also included.

The present invention describes the process of preparing ceramic materials for absorption of acidic gases, mainly carbon dioxide, in exhaust systems and/or present indoors. Ceramic materials are formed by a mixture of alkali carbonate with alkaline earth metal oxide/hydroxide associated with a binding component, but non-limiting. The alkali carbonate comprises sodium, potassium carbonate, or a mixture of both. The alkaline earth metal oxide/hydroxide may be formed from magnesium oxide or magnesium hydroxide as well as calcium oxide and/or calcium hydroxide.

A method and a composite for evaporative cooling are provided. The method includes synthesizing MOF-801 and preparing CaCl.sub.2@MOF-801 composite based on the MOF-801. The synthesizing MOF-801 includes dissolving fumaric acid and ZrOCl.sub.2.Math.8H.sub.2O into a solvent having N, N-Dimethylformamide and formic acid to produce a mixture; heating the mixture at a predetermined temperature for a predetermined amount of time; cooling the mixture to room temperature to obtain precipitate of MOF-801; separating the MOF-801 by a filter of a predetermined pore size; and drying the separated MOF-801 at a predetermined temperature for a predetermined amount of time to activate the MOF-801. The preparing CaCl.sub.2@MOF-801 composite includes dissolving a predetermined amount of CaCl.sub.2 in deionized (DI) water; applying ultrasonication to the solution for a predetermined amount of time; and mixing the MOF-801 synthesized with the CaCl.sub.2 solution under ultrasonication at a predetermined temperature for a predetermined amount of time.

Materials and methods for mitigating the effects of halide species contained in process streams are provided. A halide-containing process stream can be contacted with mitigation materials comprising active metal oxides and a non-acidic high surface area carrier combined with a solid, porous substrate. The halide species in the process stream can be reacted with the mitigation material to produce neutralized halide salts and a process stream that is essentially halide-free. The neutralized salts can be attracted and retained on the solid, porous substrate.