초록 ▼

A method for destroying toxic organic chemical products. The method is particularly adapted for the destruction of polyhalogenated polyphenyls, especially polychlorinated biphenyls (PCBs). The toxic organic chemical product is intimately contacted and reacted with a molten mixture of an alkali metal

A method for destroying toxic organic chemical products. The method is particularly adapted for the destruction of polyhalogenated polyphenyls, especially polychlorinated biphenyls (PCBs). The toxic organic chemical product is intimately contacted and reacted with a molten mixture of an alkali metal hydroxide and an alkali metal nitrate, so that it is converted to harmless products which, in the case of PCBs, include a halide salt, at least one carbon oxide, and water. By incorporating a substantial excess of nitrate in the mixture most of the salt is caused to precipitate and to settle out to the bottom for easy removal.

대표청구항 ▼

In a method for destroying a toxic organic chemical product wherein said toxic product is contacted with a molten mixture of an alkali metal hydroxide and an alkali metal nitrate to form an alkali metal salt as a product of reaction with said hydroxide, an organic intermediate reaction product also

In a method for destroying a toxic organic chemical product wherein said toxic product is contacted with a molten mixture of an alkali metal hydroxide and an alkali metal nitrate to form an alkali metal salt as a product of reaction with said hydroxide, an organic intermediate reaction product also being produced, the improvement which comprises, maintaining a mol ratio of said nitrate to said hydroxide in said molten mixture of at least 2:1, the proportion of said nitrate in said mixture further being sufficiently high to provide a low viscosity of said mixture so that a large portion of said alkali metal salt settles as solid salt particles to the bottom of said molten mixture, reacting said organic intermediate rection product with said nitrate to form CO, CO2, or a mixture thereof, and water, and removing said solid salt particles from said molten mixture at the bottom thereof.