PL421B1 - Method of obtaining chlorinated products. - Google Patents

Method of obtaining chlorinated products. Download PDF

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Publication number
PL421B1
PL421B1 PL421A PL42120A PL421B1 PL 421 B1 PL421 B1 PL 421B1 PL 421 A PL421 A PL 421A PL 42120 A PL42120 A PL 42120A PL 421 B1 PL421 B1 PL 421B1
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PL
Poland
Prior art keywords
methane
chlorine
reaction
mixture
chlorinated products
Prior art date
Application number
PL421A
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Polish (pl)
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Publication date
Application filed filed Critical
Publication of PL421B1 publication Critical patent/PL421B1/en

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Description

Pierwszenstwo: 6 pazdziernika 1915 r. (St. Zj. Am.).Przy chlorowaniu ciala w postaci ga¬ zu albo pary, wystepuje caly szereg po¬ waznych trudnosci. Metaliczne naczynia do chlorowania, posiadajace dobre u- szczelnienie i ekonomiczny doplyw ciepla,. nie opieraja sie przewaznie dzialaniu chloru; oprócz tego wplywaja czesto na reakcje ujemnie. Niemetaliczne naczynia reakcyjne maja te niedogodnosc, ze urza¬ dzenie zamkniecia nie przepuszczajacego gazu jest polaczone z trudnosciami, zwla¬ szcza jest trudno doprowadzic do wnetrza naczynia potrzebna dla reakcji ilosc cie¬ pla. Wedlug niniejszego wynalazku za¬ pobiega sie wszystkim tym niedogodno¬ sciom w ten sposób, ze potrzebne cieplo wprowadza sie do przestrzeni reakcyjnej zapomoca skladników reakcji, przez co staje sie zupelnie zbytecznem zewnetrzne ogrzewanie. W niektórych wypadkach poleca sie nie stosowac ilosci calej wcho¬ dzacego w rachube skladnika reakcji, ja¬ ko przenosnika ciepla, lecz tylko jego czesc, w odpowiednio wysoko ogrza¬ nym stanie, dodac do mieszaniny pozo¬ stalej czesci z drugim skladnikiem reakcji albo z drugiemi skladnikami reakcji. Przy wyrobie chlorku metylu ogrzaniem mie¬ szaniny chloru i metanu, zawierajacej metan w duzym nadmiarze, uzywa sie np. mieszaniny 1 obj. chloru z 15 obj. metanu. Nie jest korzystnem caly metan ogrzewac poza przyrzadem do chloro¬ wania do temperatury reakcji i na¬ stepnie wprowadzac go do naczynia reak¬ cyjnego dla zetkniecia sie z chlorem, dlatego, ze przy tym sposobie okazalo sie, ze w miejscu dostepu chloru od plo¬ mienia chloru pali sie i metan i tworzy sie duzy oblok sadzy. Przy tych oko-licznosciach reakcja przebiega pomimo duzego nadmiaru metanu wedlug równa¬ nia CH4 + 4 Cl = C + 4 HC1. Unika sie tej niepozadanej reakcji, jak wykazano, postepujac np. tak: Miesza sie 5 obj. metanu i 1 obj. chlo¬ ru, mieszanine te wpuszcza sie do naczynia reakcyjnego i wprowadza sie oprócz tego jeszcze tyle do 570° C ogrzanego metanu, azeby stosunekcalej mieszaniny wynosil 15 obj. metanu na 10 obj. chloru. Tym sposo¬ bem temperatura wewnatrz naczynia reak¬ cyjnego pozostaje stale wlasciwai osiaga sie, w zupelnosci bez przeszkód i bezpiecz¬ nie, pozadane podstawienia wedlug rów¬ nania CH4 + 2 Cl = CH3 Cl + HC1. PLFirst: October 6, 1915 (US) There are a number of serious difficulties when chlorinating the body in the form of a gas or vapor. Metallic chlorination vessels with good sealing and economical heat supply. usually not resistant to the effects of chlorine; in addition, they often negatively affect the reactions. Non-metallic reaction vessels have the disadvantage that the gas-tight sealing device is associated with difficulties, in particular, it is difficult to provide the interior of the vessel with the amount of warmth necessary for the reaction. According to the present invention, all these disadvantages are avoided by introducing the necessary heat into the reaction space by means of the reaction components, making external heating completely unnecessary. In some cases, it is advisable not to use the entire amount of the reaction component involved as a heat carrier, but only a part of it, in a suitably heated state, add to the mixture the remaining part with the second reaction component or with the second reaction components. In the preparation of methyl chloride by heating a mixture of chlorine and methane, which contains a large excess of methane, a mixture of 1 vol. chlorine with 15 vol. methane. It is unfavorable to heat all the methane, except for the chlorinator, to the reaction temperature and then put it into the reaction vessel for contact with the chlorine, because in this method it turned out that at the point of chlorine access from the flame chlorine burns and methane burns and forms a large cloud of soot. In these circumstances, the reaction proceeds despite a large excess of methane according to the equation CH4 + 4 Cl = C + 4 HCl. This undesirable reaction has been shown to be avoided by proceeding for example as follows: Mix 5 vol. methane and 1 vol. chlorine, this mixture is introduced into the reaction vessel and, in addition, heated methane to 570 ° C. is added so that the ratio of the total mixture is 15 vol. methane for 10 vol. chlorine. In this way, the temperature inside the reaction vessel remains appropriate at all times and the desired substitutions according to the equation CH4 + 2 Cl = CH3 Cl + HCl are completely and safely achieved. PL

Claims (1)

1. Zastrzezenie patentowe. Sposób chlorowania metanu zapomoca ogrzewania mieszaniny chloru i metanu, tern znamienny, ze mieszanine chloru, z czescia uzywanego metanu, ogrzewa sie do wymaganej temperatury reakcyj¬ nej przez nadmierna ilosc wprowadzo¬ nego do reakcji metanu. Burril Samuel Lacy. Zastepca: M Kryzan, rzecznik patentowy. ZAM.6RAF.KOZIANSKICH W WARSZANIE PL1. Patent claim. The method of chlorination of methane by heating a mixture of chlorine and methane, ie characterized by the fact that the mixture of chlorine, with part of the methane used, is heated to the required reaction temperature by the excess amount of methane introduced into the reaction. Burril Samuel Lacy. Deputy: M Kryzan, patent attorney. ZAM.6RAF.KOZIANSKI IN WARSAW PL
PL421A 1920-06-24 Method of obtaining chlorinated products. PL421B1 (en)

Publications (1)

Publication Number Publication Date
PL421B1 true PL421B1 (en) 1924-08-30

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