초록 ▼

A novel technique for encapsulating and immobilizing low-level radioactive liquid wastes involves formation of an oil-in-water emulsion, encapsulation of the individual oil droplets by interfacial condensation and subsequent incorporation of the encapsulated oil suspension into a curable polyester r

A novel technique for encapsulating and immobilizing low-level radioactive liquid wastes involves formation of an oil-in-water emulsion, encapsulation of the individual oil droplets by interfacial condensation and subsequent incorporation of the encapsulated oil suspension into a curable polyester resin. Stable and strong wasteforms may thus be produced containing up to about 40% by volume of entrapped oil.

대표청구항 ▼

A process for encapsulating lipophilic liquid waste into a solid matrix for storage or disposal, comprising: (a) preparing a dispersion in said waste of a selected lipophilic polyfunctional reactant capable of forming a solid condensation polymer with a selected hydrophilic polyfunctional reactant b

A process for encapsulating lipophilic liquid waste into a solid matrix for storage or disposal, comprising: (a) preparing a dispersion in said waste of a selected lipophilic polyfunctional reactant capable of forming a solid condensation polymer with a selected hydrophilic polyfunctional reactant by interfacial condensation; (b) mixing said dispersion with an aqueous solution of stabilizing agent, to form a uniform oil-in-water emulsion; (c) admixing said emulsion with an aqueous solution of said selected hydrophilic polyfunctional reactant, whereby a liquid suspension of waste-containing microcapsules is formed; (d) agitating said suspension with a curable water-extendible liquid resin to form a water-in-resin emulsion containing said microcapsules; and (e) adding a catalyst to said water-in-resin emulsion to cure said resin and form a solid matrix containing said microcapsules.