Sachem, Inc.

Charles B Little

Barry L Haymore

Sara S Moghaddam

Ari K Kar

Roger D Moulton

Victor Van De Pas

Weilian Lang

Roger Moulton

A metal-chelating resin includes (a) a compound represented by Formula (I): or a stereoisomeric form thereof or a salt thereof, wherein R, R, R, R, R, R, Rand Rare as defined herein; and (b) an organic polymer resin having at least one complementary reactive functional group covalently linked with at least one linking group of the compound represented by Formula (I).

Strong binding metal-chelating resins

Strong binding metal-chelating resins using macrocycle molecules

A process for making SSZ-39 zeolite employing at least one organic structure-directing agent (OSDA), in which a substantial quantity of the at least one OSDA, which otherwise would be required to form a zeolite such as SSZ-39, is replaced by at least one quaternary ammonium or phosphonium compound (PFA) or a mixture of two or more thereof that is not itself an OSDA for making SSZ-39. A composition including at least one oxide of silicon; faujasite; at least one organic structure directing agent (OSDA) for making SSZ-39 zeolite; at least one PFA that is not an OSDA for making SSZ-39 zeolite; an alkali metal hydroxide; and water.

Process for SSZ-39 synthesis using modified reaction composition

An aluminosilicate zeolite comprising at least 90% phase pure AEI zeolite crystals, the crystals having a plate-shaped morphology. In embodiments, at least 50% of the crystals have at least one ratio in at least one pair of dimensions in the range from 3:1 to 20:1, and thickness of 30-100 nm. A process of making the AEI zeolite comprising reacting an oxide of silicon, faujasite, a quaternary ammonium compound comprising 2,4,4,6-tetramethylmorpholinium cation, alkali metal hydroxide and water at at least 100 C to form crystals of a zeolite having an AEI framework. A crystalline AEI zeolite having pores comprising a 2,4,4,6-tetramethylmorpholinium, cation. The zeolite may comprise at least 90% phase pure AEI zeolite with the 2,4,4,6-tetramethylmorpholinium cation within pores of the zeolite. In some embodiments the zeolite comprises crystals having a plate-shaped morphology and with the 2,4,4,6-tetramethylmorpholinium cation within pores of the AEI zeolite.

Morpholinium-based quaternary ammonium cation and AEI type zeolite made therewith

A composition including (a) a quaternary ammonium hydroxide having a general formula (I): as defined herein, and (b) a dipolar aprotic solvent substantially free of water.

Quaternary ammonium hydroxides

A method of removing a residue from a surface, including applying to the surface a composition including (a) a quaternary ammonium hydroxide having a general formula (I): as defined herein, and

A displacement chromatography process, including: loading onto a stationary phase comprising an anion-exchange material a mixture comprising one or more components to be separated; and displacing at least one of the one or more components from the stationary phase by applying to the stationary phase a mixture comprising an polyaromatic polyanionic displacer compound having a general formula Cen(Ar), in which Cen is a central bond or group, Ar is an aromatic nucleus, w=2 to the maximum number of sites one Cen, and Ar is substituted with a plurality of An, in which each Anis independently defined as sulfonate, carboxylate, phosphonate, phosphate, sulfate; and Ar is further substituted with a plurality of G, in which G is defined as independently H, C-Calkyl, halogen, nitro, hydroxy, or C-Calkoxy. In addition, a group of polyaromatic polyanionic displacer compounds useful in the process is disclosed.

Anion-exchange displacement chromatography process and anionic organic compounds for use as displacer compounds in anion-exchange displacement chromatography process

A displacement chromatography process and displacer compounds used in the process and having the general formula (I): wherein:

Cation-exchange displacement chromatography process and cationic organic compounds for use as displacer compounds in cation-exchange displacement chromatography process

This invention pertains to novel multiple quaternary ammonium salts and their derivatives represented by the formula: wherein each R, R', R, R&#x2032;, R, R&#x2032;, Ror Ris independently selected from the group consisting alkyl, aryl, aralkyl and &#x2014;CH&#x2014;CH(OR)&#x2014;CHNRRR;wherein one or more Rgroup is selected from the group consisting of: and wherein Anis an anion. This invention also pertains to novel multiple quaternary ammonium salts and their derivatives represented by the formula: wherein each R, R&#x2032;, R, R&#x2032;, Ror R&#x2032;group is independently selected from the group consisting of alkyl, aryl, aralkyl and &#x2014;CH&#x2014;CH(OR)&#x2014;CHNRRR;wherein one or more Rgroup is selected from the group consisting of: and wherein Anis an anion.

Growing community of inventors

Austin, TX, United States of America

Charles B Little