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US3865553A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for continuously preparing perchlormethyl mercaptan

Assignee: Spolana sro
•
Filing: 1972-10-30
•
Granted: 1975-02-11
•
Expires: 1992-10-30
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Abstract

Abstract Apparatus for continuously preparing perchloromethyl mercaptan by chlorinating carbon disulphide by gaseous or liquid chlorine in a medium of aqueous solutions of inorganic acids containing hydrogen chloride, provides an upright reactor into which a liquid organic component and a liquid aqueously acidic component of the reaction mixture are introduced and from which the reaction mixture containing the arisen perchloromethyl mercaptan is withdrawn into a separation zone where it is separated to the aqueously acidic component and the organic component containing the arisen perchloromethyl mercaptan. After a minor portion of said components have been withdrawn from the reaction system, the remaining major portion of the aqueously acidic component is cooled, diluted by water and reintroduced back into the reaction zone while the remaining major portion of the organic component is, after being complemented with carbon disulphide, returned back into the reaction zone.

Inventors

  • 👤 Jan Masat
  • 👤 Rudolf Dohnalek
  • 👤 Jiri Chvejka

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 08:39
CPC Classifications
C; C07; C07C; C07C313/00; C07C313/08

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 123 words
AN APPARATUS FOR CONTINUOUSLY PREPARING PERCHLOROMETHYL MERCAPTAN, COMPRISING IN COMBINATION, A. A REACTOR HAVING A TOP AND A BOTTOM END PORTION AND PROVIDED WITH A CHLORINE SUPPLY INLET AND WITH AT LEAST ONE PERFORATED PARTITION FOR MIXING THE COMPONENTS OF THE REACTION MIXTURE, THE APERTURES THROUGH THE PARTITION HAVING A TOTAL AREA VARYING BETWEEN 2 AND 40 PERCENT OF THE OVERALL CROSS-SECTION OF THE REACTOR; B. A COOLER PROVIDED WITH AN INLET AND AN OUTLET FOR SUPPLYING AND WITHDRAWING A COOLING MEDIUM, RESPECTIVELY; C. INLET MEANS FOR INTRODUCING CARBON DISULPHIDE AND WATER; AND D. A SEPARATOR FOR SEPARATING THE AQUEOUS AND ORGANIC LAYERS, SAID SEPARATOR HAVING A TOP AND A BOTTOM END PORTION AS WELL AS AN INLET, SEPARATOR BEING DIRECTLY CONNECTED VIA
Claim 2
Independent Claim 123 words
AN APPARATUS FOR CONTINUOUSLY PREPARING PERCHLOROMETHYL MERCAPTAN, COMPRISING IN COMBINATION, A. A REACTOR HAVING A TOP AND A BOTTOM END PORTION AND PROVIDED WITH A CHLORINE SUPPLY INLET AND WITH AT LEAST ONE PERFORATED PARTITION FOR MIXING THE COMPONENTS OF THE REACTION MIXTURE, THE APERTURES THROUGH THE PARTITION HAVING A TOTAL AREA VARYING BETWEEN 2 AND 40 PERCENT OF THE OVERALL CROSS-SECTION OF THE REACTOR; B. A COOLER PROVIDED WITH AN INLET AND AN OUTLET FOR SUPPLYING AND WITHDRAWING A COOLING MEDIUM, RESPECTIVELY; C. INLET MEANS FOR INTRODUCING CARBON DISULPHIDE AND WATER; AND D. A SEPARATOR FOR SEPARATING THE AQUEOUS AND ORGANIC LAYERS, SAID SEPARATOR HAVING A TOP AND A BOTTOM END PORTION AS WELL AS AN INLET, SEPARATOR BEING DIRECTLY CONNECTED VIA
Claim 3
Dependent Claim 25 words
An apparatus as defined in claim 1, wherein the axes of said apertures of two adjacent rows include an angle of from 0* to 140*.

References Cited (Backward Citations)

US2011704A Cited
US2232674A Cited
US2592063A Cited
US2648594A Cited
US2977288A Cited
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US3600136A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-02-10 1978-08-12 1979-02-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-02-10 1982-08-12 1983-02-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-02-10 1986-08-12 1987-02-11 $7700.00 Window Closed / Lapsed

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