Abstract: The invention features a system for treating liquid including a liquid treatment device comprising adsorbent media for removing a substance from liquid and a pH adjuster device located upstream of the liquid treatment device relative to a direction of flow of the liquid. The pH adjuster device contains particulate or solid state pH adjuster material capable of releasing H or OH groups into the liquid or consuming H or OH groups from the liquid effective to raise or lower the pH of the liquid while it passes through the media. The pH adjuster may include acidifier or basifier material. Also featured is a method of using the device to remove a substance from liquid by adsorption and/or ion exchange.

Abstract: The present invention features a method of making hydrous zirconium oxide having desirable properties, including resistance to moisture content, predetermined particle size, and developed porosity and surface area. The inventive material is suitable for use as an ion exchanger, a catalyst and a catalyst support. The process comprises providing a liquid comprising a zirconium compound and an alkali metal-containing reagent. The alkali metal-containing reagent may comprise a compound selected from the group consisting of MOH-M2SO4, MOH-M3PO4, and combinations thereof, where M is at least one of Li, Na and K. The zirconium compound may be treated with the alkali metal-containing reagent effective to form a mixture which achieves an uptake of alkali metal in an amount ranging from 0.5 to 2.5 meq/g. The mixture is reacted to form the hydrous zirconium oxide. A molar ratio of SO4/Zr and PO4/Zr in the mixture may range from 0.2-0.7:1. The mixture may be heated at a temperature ranging from 80 to 150° C.

Abstract: The invention features a system for treating liquid including a liquid treatment device comprising adsorbent media for removing a substance from liquid and a pH adjuster device located upstream of the liquid treatment device relative to a direction of flow of the liquid. The pH adjuster device contains particulate or solid state pH adjuster material capable of releasing H or OH groups into the liquid or consuming H or OH groups from the liquid effective to raise or lower the pH of the liquid while it passes through the media. The pH adjuster may include acidifier or basifier material. Also featured is a method of using the device to remove a substance from liquid by adsorption and/or ion exchange.

Abstract: The invention features a system for treating liquid including a liquid treatment device comprising adsorbent media for removing a substance from liquid and a pH adjuster device located upstream of the liquid treatment device relative to a direction of flow of the liquid. The pH adjuster device contains particulate or solid state pH adjuster material capable of releasing H or OH groups into the liquid or consuming H or OH groups from the liquid effective to raise or lower the pH of the liquid while it passes through the media. The pH adjuster may include acidifier or basifier material. Also featured is a method of using the device to remove a substance from liquid by adsorption and/or ion exchange.

Abstract: A zirconium phosphate compound having a Zr:P ratio of from about 1.80-2.0 to 1, which compound's H-form exhibits a single peak at ?13.7±0.5 ppm in the 31P NMR spectra. The compound is useful as a catalyst, catalyst support and ion exchange media having a high affinity for cobalt and nickel ions.

Abstract: The invention relates to zirconium phosphate of H form which is characterized by a 31P NMR spectra comprising peaks at ?4.7 ppm, ?12.8 ppm and ?17.0 ppm (all peaks being in a range of ±0.5 ppm). Also featured is a Na form of the material. The zirconium phosphate material is characterized by a unique surface area, pore size distribution and surface morphology, as well as by an affinity for NH4+ ions and moisture insensitivity. Also featured is hafnium phosphate characterized by moisture insensitivity. The zirconium phosphate may be amorphous and possess a framework-type structure. The inventive method of making zirconium phosphate includes the steps of heating an aqueous mixture including a zirconium compound and a phosphorous-containing reagent at a temperature of at least 120° C. to form a reaction product, and treating the reaction product with acid at a temperature of at least 60° C.

Abstract: A process is provided for preparing dilute aqueous copper zirconium ammonium carbonate solutions containing less than about 0.5% Cu and 1.5% ZrO.sub.2, having a Cu:Zr atomic ratio within the range from about 0.5:1 to 1:1 and having an enhanced resistance to gelation and the formation of precipitates, upon storage at atmospheric temperatures, which comprises mixing aqueous solutions of ammonium copper carbonate and ammonium zirconyl carbonate in proportions selected to form copper zirconium ammonium carbonate in solution in water in a concentration within the range from about 0.1% to about 0.5% Cu, and an amount sufficient to inhibit gelation and precipitation of a vicinal diol compound having the general formula:R.sub.1 --CHOH--CHOH--R.sub.2wherein R.sub.1 and R.sub.

Abstract: Stable aqueous copper zirconium complex salt solutions are provided for enhancing the resistance to rot of cotton fabrics, comprising a copper zirconium ammonium carbonate complex salt and a vicinal diol compound having the formula R.sub.1 CHOHCHOHR.sub.2, wherein R.sub.1 and R.sub.2 are selected from the group consisting of carboxylic acid groups and salts thereof and organic radicals having at least two carbon atoms and at least one hydroxyl group, and if only one of R.sub.1 and R.sub.2 be carboxylic acid or salt, the organic radical has at least two hydroxyl groups.