US1402338A - Apparatus for the production of halogenated hydrocarbons - Google Patents

Description

A. A. BACKHAUS.

APPARATUS FOR THE PRODUCTION OF HALOGENATED HYDROCARBONS.

APPLICATION FILED MAY 7. 1919.

l %@3,838 A Patented Jan. 3, 1922 w... VIII/[149% r I INVE-IWT A web earns ARTHUR A. BACKHAUS, OF BALTIMORE, .MARYLAIND, ASSIGNOR TO U. S. INDUSTRIAL ear -FF@.

ALCOHOL 00., A CORPORATION OF WEST VIRGINIA,

. APPARATUS FOR PRODUCTION OF HALOGENATED HYDROCARBONS.

mosses.

Application filed may 7,

To all whom it may concern Be it known that I, ARTHUR A. BACK- HAUS, a citizen of the Jnited States, resid-- ingat Baltimore, in the State of Maryland, have invented a certain new and useful Improvement in Apparatus forthe- Production of Halogen'ated Hydrocarbons, of

- which the following is a specification.

' of light, the maintenance of an excew of tion partly in section of an the unsaturated hydrocarbon, such for example as ethylene, throughout the treatment, and the maintenance of a comparatively low temperature during the treatment. I

Further objects of my inventionwill appear from the detailed description thereof set forth hereinafter.-

While my invention is capable of beingcarried out in many difl'erent ways, for the purpose of illustration I have shown only one type of apparatus made in accordance with my invention in the. accompanying drawings, in which; y

The figure is diagrammatic representaapparatus made in accordancewith my invention. v g

Assuming that the apparatus is to. be used for thetreatment ofethylene with chlorine to produce ethylene dichloride, ethylene gas is conveyed by means such as a pipe 1 into 'achamber 2. In the em bodi-' ment shown this is formed by a cover plate 3, which is shown as secured to a cylindrical casing 4, in such a manner as to hold between the cover plate 3 and the cylinder 4 a perforated plate 5, carrying in the same the/ends of a series of tubes 6. These are shown as held in place in a similar manner at their lower ends by means of a perforated plate 7, located between the cylinder 4 and a bottom plate 8, which'form a cham- Specification of Letters Patent.

. Patented Jan.

1919. Serial in. 295,474.

ber 9 at theqlower end of the apparatus. The cylinder 4 is preferably kept cool by means such as a counter-current of water 7 which may be admitted by a pipe 10, and

i-which flows out of the cylinder 4 by means such as a pipe 11. Chlorine gas is preferafbly admitted to the chamber 2 by means such as a pipe 12 in the proportion of ten volumes of chlorine to eleven volumes of ethylene, these proportions being chosen so as to maintain at all times throughout the treatment an excess of ethylene present. In the embodiment shown thechlorine and ethylene after entering the chamber 2 ass downwardly throu h .the tubes 6 wl iere they become united to form ethy ene (11- chloride', the'temperature being kept lowat all times by means of acurrentof water in thecylinder 4. The ethylene dichloride, together with some chlorine dissolved therein,

and some gaseous ethylene, pass out of the chamber 9 bym'eans of a pipe 13 and into 3. receiver 14, where the pipe 13 terminates as near the bottom of the receiver as possible, so as to form a liquid seal within the receiver. The liquid within" the receiver 14 will -at'first be comprisedof ethylene dichloride having chlorine dissolved therein. As the process continues to be carried. out, the gaseous ethylene which descends in the pipe 13-will be bubbled through the liquid in" the receiver 14, ,so as to combine with all the-chlorinewhich is dissolved in the li uid, so that in this manner ethylene d1- chloride entirely free from any uncombined .rhlorine is obtained, and may be drawn ofi from time to time through a valved pipe- 15 in the bottom of the receiver; The excess of the ethylene passes out of the receiver 14 by means such as a pipe 16, which preferably conducts the ethylene back to the chamber 2, where the ethylene is thus again brought into contact with chlorine,

so as to form ethylene dichloride in the same manneras previously described.

It will be understood that all of the a paratus above described is ordinarily ma e of an opaque material of such a. character as not to be acted upon by the substances present, and may for example be made throughout ofiron. The temperature is kept as low as possible, and in any event as low as 50 6., as indicated by the temperature in the materials flowing out of as in this manner substitution of hydrogen atoms by the halogen used is obviated. Furthermore, it will be understood that instead of ethylene other unsaturated hydro carbons may 'be used, as for example butyl ne or amylene, and that, instead otthe chlorine the other halogens may be used.

The Word pipes in the claims is intended to refer to any form of conduit for conveying liquids or gases from one place to another.

While 1 have described my invention above in detail, I Wish it to be understood that many changes may be made therein Without departing from the spirit thereof.

1 claim:

1. A chlorinati g apparatus comprising container containing pipes and means for cooling them, means for introducing chlorine and'a gas at one end of the pipes, a conduit leading from the other end of the pipes to the bottom of a receptacle, and a pipe conmeeting the latter with the means for introducing chlorine and the gas.

2. chlorinating apparatus ocriiprisin container containing vertical pipes an means for coolingthem, means for introducing chlorine and a gas at the top of the pipes, a conduit leading from the other end of the pipe connecting the latter with the means for introducing chlorine and the gas.

3. A chlorinating apparatus comprising a container having chambers at each end, pipes connecting said chambers, means for cooling the container and the pipes, an inlet for chlorine and a gas to the upper chamber, an outlet for the lovv'er chamber leading to a receptacle, and a pipe connecting the re ceptacle to the upper chamber.

4. A chlorinating apparatus comprising a long vertical containerhaving chambers at each end, pipes connecting said chambers, ,means for cooling the container and the pipes, an inlet for chlorine at the top of the upper chamber and an inlet for gas at the side" thereof, an outlet at the bottom oi the lower chamber leading to the bottom of a receptacle, and a pipe connectin the top of the receptacle to the upper chamierQ 5. [it halogenating apparatus comprising a reaction chamber, a receiver for the liquid halogenated product, means for bubbling gaseous materials from the reaction chamber through the liquid in the receiver, means for returnin any unhalogenated gas to the reaction c amber, and means for cooling the reaction chamber.

In testimony that I claim the foregoing, 1 have hereunto set my hand this 22nd day of April, 1919.

ARTHUR A. BAGKHAUS.

pipes to the bottom of a receptacle, and a

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