Olin Corporation

Steven A Manke

Eugene F Rothgery

Henry W Schiessl

Rahim Hani

Karl O Knollmueller

David F Gavin

Manfred G Noack

Richard H Dumas

Charles H Harrison

Robert E McMahon

Frank W Migliaro

Michael A Kennedy

A process for preparing an N-oxide of pyridine or a halopyridine, said process comprising reacting a reaction mixture of said pyridine, or said halopyridine, and hydrogen peroxide in a reaction conducted at an elevated temperature in the presence of a catalytically effective amount of a heterogeneous catalyst, said heterogeneous catalyst being insoluble in said reactants, to form said 2-halopyridine-N-oxide or pyridine-N-oxide.

Oxidation of pyridine and derivatives

The present invention relates to a process for preparing 2,6-dichloropyridine which comprises reacting an organic solvent-free, catalyst-free reaction mixture comprising 2-chloropyridine and chlorine in the presence of a hydrogen chloride scavenger and ultraviolet light, and optionally in the presence of added moisture, at a temperature of between about 90.degree. C. and about 185.degree. C. Also claimed is a method for preventing calcium chloride plugging of the chlorine feed stream and for preventing calcium chloride build-up in the above reaction mixture which comprises adding moisture in the form of water or steam, or a combination thereof, to the reaction mixture prior to, or during, the reaction of said process.

Process for preparing 2,6-dichloropyridine

The present invention relates to a liquid or gel propellant comprising an oxidizer and a fuel, said fuel preferably having a vapor pressure not exceeding 10 millimeters of mercury at 25.degree. C. and being selected from the group consisting of hydroxy-(lower alkyl)-hydrazine, dihydroxy-(lower alkyl)hydrazine, cyanoethylhydrazine, 1-methyl-1-cyanoethylhydrazine, 1,1-dimethyl-2-cyanoethylhydrazine, and combinations thereof. Also claimed is a method of making the propellant.

Use of reduced volatility substituted hydrazine compounds in

This invention relates to a process for reducing or eliminating hydrazine from a mixture containing hydrazine and a polymer, wherein the polymer is in latex form.

Process for minimizing residual hydrazine in polymer latices

In a process for the production of Alkyl substituted 5-amidotetrazole compounds represented by the formula: ##STR1## wherein A represents NHX or NRR'

Method of producing alkyl substituted 5-amidotetrazoles

In a process for the production of cellular products comprising thermoplastic or rubber materials the blowing agents employed have the formula: ##STR1## wherein A represents NHX, NRR' or OR

Substituted 5-amidotetrazoles as blowing agents in the production of

Substituted 5-amidotetrazoles

A process for producing triaminoguanidine nitrate, and, more specifically, a process which involves reacting hydrazine, nitric acid and cyanamide in specified molar ratios. Also claimed is the high melting point product so produced.

Process for producing triaminoguanidine nitrate and the high melting

An oxygen-scavenging and corrosion-inhibiting agent for fluidic systems comprising an aminoguanidine compound selected from the formula: ##STR1## or a salt thereof, wherein R is selected from H or a lower alkyl group having 1 to 4 carbon atoms; wherein X is selected from NH or NNH.sub.2 ; and Y is selected from --NH.sub.2 or --NHNH.sub.2.

Use of aminoguanidine compounds as oxygen-scavenging and

A method has been devised for removing hexavalent chromium from concentrated aqueous alkali metal chlorate solutions by reacting the solution with a hydrazine compound and separating trivalent chromium compound from the solution. Alkali metal hypohalites may be simultaneously removed from the chlorate solution by reaction with excess hydrazine compound.

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Wallingford, CT, United States of America

Steven A Manke