Fmc Corporation

John Francis Start

Borivoj Richard Franko-Filipasic

Richard A Mohr

Edward F Orwoll

Hsiang P Liao

Thomas M Fekete

A process to manufacture trichloroisocyanuric acid of commercially acceptable size and quality from a mother liquor used to produce an alkali metal salt of dichloroisocyanurate by monitoring and, if necessary, adjusting the mol ratio of available alkalinity to chlorine required to convert all of the triazine compounds in the mother liquor to trichloroisocyanuric acid to be between 1.0 and 1.3 with an alkali metal salt of carbonic acid.

Process for production of an alkali metal dichloroisocyanurate and

Peroxycarboxylic acid compositions containing stabilizing ingredients are produced by the hydrogen peroxide peroxidation of corresponding carboxylic acids which are not substantially soluble in water by a continuous process in which the peroxidation reaction takes place in solution in concentrated sulfuric acid, or other strong acid, while that solution is intimately interdispersed, by means of agitation, with methylene chloride, or other organic solvent, in which the resulting peroxycarboxylic acid is soluble, but the carboxylic acid is not, and the sulfuric acid, or other acid, is recovered from the effluent of the process by reacting it with borax and caustic soda or soda ash to form crystals of boric acid and sodium salt of the strong acid which, in admixture with peroxycarboxylic acid recovered from the effluent, form the peroxycarboxylic acid composition product. The methylene chloride is also recovered from the effluent and recycled to the process.

Continuous process for the production of peroxycarboxylic acid

Polymeric phosphonitrilic chlorides are produced from ammonia and phosphorus pentachloride in a continuous process in a plurality of reaction zones characterized by simultaneous addition of reactants and continuous withdrawal of product.

Continuous process for the production of phosphonitrilic chlorides

Regenerated cellulose filaments containing a flame-retardant amount of liquid oligomeric compounds, prepared by heating together liquid polyphosphonitrilic esters with phosphoric anhydride, and method for preparing same.

Flame-retardant regenerated cellulose filaments containing oligomeric

A novel process consisting of reacting a phosphonitrilic chloride with an alcohol or alkoxide to 12 carbon atoms to produce a partially esterified phosphonitrilic chloride, removing impurities from the chloroester and heating the ester to form a condensed polymeric phosphazene with P-O-P oxygen linkages. This new class of polymer phosphazenes, with P-O-P oxygen linkages, is unusually efficacious in rendering rayon flame-retardant.

Polymeric phosphazenes

Regenerated cellulose filaments having dispersed therein a flame-retardant amount of phosphonitrilic esters containing a substantial amount of cyclic structures, dimerized, oligomerized, or polymerized, that are prepared by esterification of a phosphonitrilic chloride polymer with ethylene glycol.

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Mercerville, NJ, United States of America

John Francis Start