Method of decomposing alkyl phosphate
Alkyl phosphates, undiluted or dissolved in hydrophobic solvents are destroyed in situ by reaction with hydrogen peroxide in the presence of a catalyst system comprising a chromium compound, which dissolves in the aqueous phase, typically an alkali metal chromate, which is employed in conjunction wi...
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| creator | HUTSON GRAHAM V ROWBOTTOM KENNETH T CONBOY TERENCE M WILKINSON JOHN N. R |
| description | Alkyl phosphates, undiluted or dissolved in hydrophobic solvents are destroyed in situ by reaction with hydrogen peroxide in the presence of a catalyst system comprising a chromium compound, which dissolves in the aqueous phase, typically an alkali metal chromate, which is employed in conjunction with introduction of an alkali, preferably sodium hydroxide, or in the presence of an alkali buffer to keep the pH of the aqueous phase within a window spanning mildly acidic to mildly alkaline pH during the course of progressive introduction of the hydrogen peroxide, which often lasts from 3 to 10 hours, thereby enabling the oxidation of the alkyl phosphate to continue. The reaction is preferably carried out at a temperature of at least 60C, and particularly at about 65 to 75C, or at about the boiling point of the aqueous phase. |
| format | Patent |
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| subjects | CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING ORPROTECTING AGAINST HARMFUL CHEMICAL AGENTS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY DECONTAMINATION ARRANGEMENTS THEREFOR FIRE-FIGHTING HUMAN NECESSITIES LIFE-SAVING METALLURGY NUCLEAR ENGINEERING NUCLEAR PHYSICS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT THEIR RELEVANT APPARATUS TRANSPORTING TREATING RADIOACTIVELY CONTAMINATED MATERIAL TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE |
| title | Method of decomposing alkyl phosphate |
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