US4368173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactor for oxichlorination of ethylene and process therefor
Assignee: Mexican Institute of Petroleum
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Filing: 1980-09-11
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Granted: 1983-01-11
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Expires: 2000-09-11
Abstract
Abstract The present invention refers to an improved reactor for oxichlorination of ethylene and to the process used therefor, which in a general way proceeds in accordance with the following reaction: ##STR1## the catalyst being a fluidizable solid of Cu salts and oxides, the improvement being characterized in that the process is carried out in a multitubular reactor which comprises a gas distributing diffusor including a cap ferrule and granulated nickel.
Inventors
- 👤 Humberto D. Jimenez
- 👤 Emilio W. Mora
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:03
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1836; B01J8/008; B01J8/02; B01J8/06; B01J8/067; B01J8/1818; C; C07; C07C; C07C17/00; C07C17/093; C07C17/15; C07C17/152; C07C17/156; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00168; B01J2208/00212
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
207 words
An improved multitubular heat exchanger type reactor to carry out the oxichlorination of ethylene to obtain preferably 1,2 dichloro ethane comprising: a calender reactor including a casing and a system of vertical tubes; a first mirror joined to the upper ends of the vertical tubes; a second mirror joined to the lower ends of the vertical tubes; a degasifying chamber formed as an upper dome attached to the upper portion of the casing; a distributing chamber for the reactants, said chamber being formed as a lower dome or feeding header attached to the lower portion of the casing; at least one diffusing element for the reaction gases individually coupled to the inside of at least one reaction tube, wherein each said diffusing element comprises a ferrule including a metallic cylindrical ferrule sleeve, a horizontal annular stainless metallic plate attached to the upper edge of said cylindrical sleeve, a tubular element affixed to the circular inner surface of said annular plate, a movable tubular element adjustably mounted inside said tubular element, and a ferrule cap mounted on said tubular element; a holder for said ferrule attached to the lower end of the calender tubes; and a metallic granule catalyst bed located on the cylindrical plate of the ferrule.
Claim 2
Dependent Claim
207 words
An improved multitubular heat exchanger type reactor to carry out the oxichlorination of ethylene to obtain preferably 1,2 dichloro ethane comprising: a calender reactor including a casing and a system of vertical tubes; a first mirror joined to the upper ends of the vertical tubes; a second mirror joined to the lower ends of the vertical tubes; a degasifying chamber formed as an upper dome attached to the upper portion of the casing; a distributing chamber for the reactants, said chamber being formed as a lower dome or feeding header attached to the lower portion of the casing; at least one diffusing element for the reaction gases individually coupled to the inside of at least one reaction tube, wherein each said diffusing element comprises a ferrule including a metallic cylindrical ferrule sleeve, a horizontal annular stainless metallic plate attached to the upper edge of said cylindrical sleeve, a tubular element affixed to the circular inner surface of said annular plate, a movable tubular element adjustably mounted inside said tubular element, and a ferrule cap mounted on said tubular element; a holder for said ferrule attached to the lower end of the calender tubes; and a metallic granule catalyst bed located on the cylindrical plate of the ferrule.
Claim 3
Dependent Claim
36 words
An improved multitubular reactor in accordance with claim 1, wherein the metallic granule bed covers and overtops the cap height, in order to increase the distribution area of the gases and to improve the catalyst fluidity.
Claim 4
Dependent Claim
41 words
An improved multitubular reactor in accordance with claim 1, characterized in that the ferrule holder is a metallic hexagonal plate which presents on its center a conduit to which is coupled a one-way valve which controls any backflow inside the reactor.
Claim 5
Dependent Claim
42 words
An improved multitubular reactor in accordance with claim 1, wherein the ferrule holder includes on its upper surface a recess for receiving the ferrule sleeve and packing in said recess for sealing the ferrule joint between the ferrule holder and the sleeve.
Claim 6
Dependent Claim
31 words
An improved multitubular reactor in accordance with any one of claims 1, 2, 3, or 4, characterized in that the ferrule holder comprises fastening elements for attachment to the ferrule cap.
Claim 7
Dependent Claim
41 words
An improved multitubular reactor in accordance with claim 1, characterized in that the calender casing presents on its lower end a water feed to dissipate the reaction heat, and on its upper end an outlet for vapor generated during the reaction.
Claim 8
Dependent Claim
46 words
An improved multitubular reactor in accordance with claim 1, characterized in that on the sides of the feed inlet of the reactor header there are located two rupture discs which function as safety elements when there exists an over-pressure above the working pressure of the reactor.
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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) | 1986-01-10 | 1986-07-12 | 1987-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-10 | 1990-07-12 | 1991-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-10 | 1994-07-12 | 1995-01-11 | $7700.00 | Window Closed / Lapsed |