Patent US3939072A successfully refreshed from Google Patents.
US3939072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for generating an oxidizing reagent for the treatment of polluted water
Assignee: LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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Filing: 1974-06-17
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Granted: 1976-02-17
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Expires: 1994-06-17
Abstract
Abstract A apparatus for obtaining monoperoxy sulphuric acid from hydrogen peroxide and sulphuric acid is disclosed. Hydrogen peroxide in the form of an aqueous solution with a concentration ranging from 35 to 100 percent and either concentrated sulphuric acid or fuming sulphuric acid are added simultaneously to a reaction vessel. The temperature of the reaction is maintained in the range -10°C to +80°C and the supply of the hydrogen peroxide and sulphuric acid to the reaction vessel is controlled so that the generation of the monoperoxysulphuric acid occurs when required and the quantity thereof produced is adjusted according to the quantity thereof required for reaction with another reactant, for example a pollutant, the concentration of the monoperoxysulphuric acid being substantially constant.
Inventors
- 👤 Eric Jourdan LaForte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:36
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/722; C01; C01B; C01B15/00; C01B15/055; C01B15/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
129 words
A generator assembly for generating and supplying reagents to a treatment tank, comprising: a reactor; overflow means connected to said reactor for maintaining a constant level therewithin and delivering any overflow above the constant level out of the generator assembly for delivery to the treatment tank; two inlet pipes disposed symmetrically in the upper part of said reactor; two reagent proportioning pump means, each for supplying proportioned amounts of reagent to a respective one of said inlet pipes; a single motor means connected to said two reagent proportioning pump means for driving both of said pump means; and regulator means connected to said motor means for controlling said motor means in a predetermined manner in response to the conditions sensed external to the generator assembly in the treatment tank.
Claim 2
Dependent Claim
129 words
A generator assembly for generating and supplying reagents to a treatment tank, comprising: a reactor; overflow means connected to said reactor for maintaining a constant level therewithin and delivering any overflow above the constant level out of the generator assembly for delivery to the treatment tank; two inlet pipes disposed symmetrically in the upper part of said reactor; two reagent proportioning pump means, each for supplying proportioned amounts of reagent to a respective one of said inlet pipes; a single motor means connected to said two reagent proportioning pump means for driving both of said pump means; and regulator means connected to said motor means for controlling said motor means in a predetermined manner in response to the conditions sensed external to the generator assembly in the treatment tank.
Claim 3
Dependent Claim
18 words
A generator assembly in accordance with claim 1, wherein said reactor has at least one degasifying opening therein.
Claim 4
Dependent Claim
19 words
A generator assembly in accordance with claim 1, further including agitator means for agitating the contents of said reactor.
Claim 5
Dependent Claim
50 words
A generator assembly in accordance with claim 1, wherein said regulator means includes a redox electrode assembly for dipping into the treatment tank and wherein said regulator means causes the activation of said motor means when an oxidizable impurity is detected in the treatment tank by said redox electrode assembly.
Claim 6
Dependent Claim
45 words
A generator assembly in accordance with claim 1, further including: third pump means connected to said single motor means for supplying a third reagent directly to the treatment tank in a proportion to the amount of reagents pumped by said two reagent proportioning pump means.
Claim 7
Dependent Claim
39 words
A generator assembly in accordance with claim 1, wherein said assembly is for generating and supplying monoperoxysulphuric acid to a treatment tank containing polluted water, said reagents delivered through said two inlet pipes being hydrogen peroxide and sulphuric acid.
Claim 8
Dependent Claim
29 words
A generator assembly in accordance with claim 1, wherein said reactor is a double-jacket reactor and further including circulating means for circulating a cooling liquid inside said double jacket.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-16 | 1979-08-18 | 1980-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-16 | 1983-08-18 | 1984-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-16 | 1987-08-18 | 1988-02-17 | $7700.00 | Window Closed / Lapsed |