Patent ID: 8541640
Filing Date: 2013-09-24
Classification: A62D

Abstract:
1. A process for destruction of toxic wastes through oxidation in the presence of water which comprises the following stages: (a) mix a toxic waste contaminated oily liquid with water at ambient temperature and a non-ionic emulsifying agent with Hydrophilic-lipophilic balance (HLB) between 10 and 20 and agitate the mixture to form an emulsion, wherein the water is present at 40% by weight; (b) bring the emulsion from stage a) to a pressure between 22,291 and 40,530 kPa and to a temperature between 643 and 853K; (c) bring an oxidant selected from the group consisting of aqueous hydrogen peroxide, potassium permanganate, potassium dichromate, manganese dioxide and combinations thereof to a pressure between 22,291 and 40,530 kPa; (d) heat in a first stage the oxidant from stage c) up to a temperature between 573 and 643 K and in a second stage up to a temperature between 644 and 853 K; (e) mix in a reaction unit the emulsion from stage a) and the oxidant from stage d) at a temperature between 644 and 853 K and at pressure between 22,291 and 40,530 kPa during a period of time between 30 seconds and 5 minutes yielding an effluent (f) subject to cooling the effluent from stage e) at a temperature equal to or below 298 K; and (g) separate and store in a gas stream and a liquid stream homogeneous phases obtained in stage f).