351 results about "Ammonium Cation" patented technology

A phthalocyanine phthalocyanine salt suitable for formulation in a solvent-based or oil-based ink vehicle is disclosed. The phthalocyanine comprises one or more sulfonate groups and a counterion of at least one sulfonate group is an ammonium cation comprising at least 15 carbon atoms. Ammonium salts of sulfonated gallium naphthalocyanines exemplify such phthalocyanine salts.

A process for converting a salt of a hydroxycarboxylic acid to an unsaturated carboxylic acid, or esters thereof. The process involves converting an ammonium salt of a hydroxycarboxylic acid in aqueous solution to a corresponding hydroxycarboxylic acid and ammonium cation in aqueous solution; and separating the ammonium cation from the aqueous solution, leaving the hydroxycarboxylic acid in aqueous solution. The converting and separating steps may be accomplished by employing a hydrophobic acid or an acid ion exchange resin, each of which must have an acid dissociation constant, i.e., pKa, at least 0.5 less that that of the salt of the hydroxycarboxylic acid. Where a hydrophobic acid is used, it must be immiscible in water, and its salt must also be immiscible in water, and the resulting multi-phase solution comprises an aqueous phase comprising the corresponding hydroxycarboxylic acid, as well as a non-aqueous phase comprising a neutralized acid. Alternatively, where the ion exchange resin is used, the aqueous solution of the ammonium salt of a hydroxycarboxylic acid is contacted with the resin, thereby converting the salt to a hydroxycarboxylic acid and capturing the ammonium cations on the resin. In either case, the aqueous solution is treated, such as by heating, to separate and recover the hydroxycarboxylic acid. The non-aqueous phase or resin is treated to separate and recover ammonia useful for preparing additional ammonium salt of a hydroxycarboxylic acid.

Imidazoles may be manufactured by reacting a glyoxal, ammonia, an aldehyde, and optionally a primary amine, in the presence of a Bronsted acid whose pKa is approximately equal to the pKa of the ammonium cation of the primary amine, or if the primary amine is not present, to the pKa of the ammonium (NH4+) cation. The reaction may be used to make in relatively high yields a wide variety of imidazoles using relatively inexpensive starting materials. The imidazoles are useful as chemical intermediates.

This invention is directed to a composition capable of imparting surface effects to a liquid by contacting the liquid with a partially fluorinated phosphate with an ammonium cation (NH2R1R2)+ wherein R1 and R2 are independently linear or branched organic groups containing at least one carboxylate moiety and one amino moiety, and optionally be substituted, interrupted, or both with oxygen, sulfur, or nitrogen-containing moieties, or with cyclic alkyl or aryl moieties containing up to 10 carbon atoms.

The invention relates to a method for making oligomeric isocyanates by reacting diisocyanates in the presence of a catalyst, wherein the catalyst comprises a saline compound prepared from an anion selected from 1,2,3- or 1,2,4-triazole, a substituted species of 1,2,3- or 1,2,4-triazole and carbocyclically and / or heterocyclically annellated species of 1,2,3- or 1,2,4-triazole and the cation selected from an alkali metal, alkaline-earth metal and / or monovalent ammonium cation and / or phosphonium cation of formula (5), wherein the E, R1, R2, R3, R4 are as defined in the descriotion. The invention also relates to a products obtained by the said method and polymer prepared by the products. The catalyst system for polyisocyanates has high reality and prompts to generate thiourea dione accounting for large proportion of polyisocyanates.

The invention discloses a polymer film with antifouling property. Silicon dioxide nanoparticles or titanium dioxide nanoparticles with amphoteric ionized surfaces are evenly dispersed in the polymer film, wherein the surfaces of the nanoparticles are coated with carboxyl anion-ammonium cation zwitter-ion pairs; the content of the silicon dioxide nanoparticles or the titanium dioxide nanoparticles in the polymer film is 0.3-10wt%; the surface contact angle of the polymer film is reduced to below 50%; the secondary water flux recovery rate in an antifouling separation test reaches over 95%; and the antifouling property is obviously improved.

An animal feed is provided that employs a substantially indigestible cation exchanger capable of binding ammonium cations and an acidogenic substance to acidify an animal's manure and thereby create ammonium cations that can be bound by the cation exchanger. The animal feed reduces ammonia emissions from manure produced by animals fed the animal feed compared to the emissions obtained from manure when an acidogenic substance is fed alone and compared to the emissions obtained from manure when a cation exchange capacity material is fed alone. According to another aspect of the present invention, a method of lowering ammonia emissions from manure is provided. The present invention also provides a method for reducing soluble phosphorus levels in manure and a method for reducing total phosphorus levels in manure. In a further aspect of the present invention, a method is provided that yields manure that may be used alone or in concert with other materials to act as a fertilizer having advantageous ecological properties. Another aspect of the present invention provides a method for reducing insect populations associated with manure.

A compound of Formula 1Rf-A-OP(O)(O−M+)(O—RH)   Formula 1whereinRf is a C2 to C6 linear or branched perfluoroalkyl optionally interrupted by one, two or three ether oxygen atoms;A is (CH2CF2)m(CH2)n—, (CH2)oSO2N(CH3)(CH2)p—, O(CF2)q(CH2)r—, or OCHFCF2OE-;m is 1 to 4; n, o, p, and r are each independently 2 to 20; q is 2;E is a C2 to C20 linear or branched alkyl group optionally interrupted by oxygen, sulfur, or nitrogen atoms; a cyclic alkyl group, or a C6 to C10 aryl group;M is a Group I metal or an ammonium cation (NHxR2y)+ wherein R2 is a C1 to C4 alkyl, x is 1 to 4, y is 0 to 3 and x+y is 4; andRH is a C1 to C20 linear, branched, or cyclic alkyl, or a C6 to C10 aryl, and its use as a surfactant is disclosed.

A family of highly charged crystalline microporous metallophosphate molecular sieves designated PST-19 has been synthesized. These high charge density metallophosphates are represented by the empirical formula of:Rp+rA+mM2+xEyPOz where A is an alkali metal such as potassium, R is an organoammonium cation such as tetraethylammonium, M is a divalent metal such as zinc and E is a trivalent framework element such as aluminum or gallium. The PST-19 family of materials are among the first MeAPO-type molecular sieves to be stabilized by combinations of alkali and quaternary ammonium cations, enabling unique compositions. The PST-19 family of molecular sieves has the SBS topology and catalytic properties for carrying out various hydrocarbon conversion processes and separation properties for separating at least one component.