DE2022454C3 - Process for the production of dicyan - Google Patents

Process for the production of dicyan

Info

Publication number
DE2022454C3
DE2022454C3 DE19702022454 DE2022454A DE2022454C3 DE 2022454 C3 DE2022454 C3 DE 2022454C3 DE 19702022454 DE19702022454 DE 19702022454 DE 2022454 A DE2022454 A DE 2022454A DE 2022454 C3 DE2022454 C3 DE 2022454C3
Authority
DE
Germany
Prior art keywords
hydrogen cyanide
dicyan
oxygen
ferric ions
hydrogen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE19702022454
Other languages
German (de)
Other versions
DE2022454A1 (en
DE2022454B2 (en
Inventor
Johannes Heilos
Werner Dr Heimberger
Theodor Dr Luessling
Wolfgang Dr Weigert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Degussa GmbH filed Critical Degussa GmbH
Priority to DE19702022454 priority Critical patent/DE2022454C3/en
Priority to CH160971A priority patent/CH557782A/en
Priority to NL717101574A priority patent/NL143875B/en
Priority to IL36158A priority patent/IL36158A/en
Priority to FR7108128A priority patent/FR2084375A5/en
Priority to BE764361A priority patent/BE764361A/en
Priority to AT231071A priority patent/AT308148B/en
Priority to JP46014995A priority patent/JPS5215560B1/ja
Priority to CA108,012A priority patent/CA951870A/en
Priority to AT321471A priority patent/AT313311B/en
Priority to NL7105148A priority patent/NL7105148A/en
Priority to GB2360871A priority patent/GB1338025A/en
Priority to CH578871A priority patent/CH574874A5/en
Publication of DE2022454A1 publication Critical patent/DE2022454A1/en
Publication of DE2022454B2 publication Critical patent/DE2022454B2/en
Application granted granted Critical
Publication of DE2022454C3 publication Critical patent/DE2022454C3/en
Priority to US05/543,367 priority patent/US4003983A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006Controlling or regulating processes
    • B01J19/002Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01CAMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00Cyanogen; Compounds thereof
    • C01C3/003Cyanogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (1)

später von dem gebildeten Dicyan wieder abgetrenntlater separated again from the dicyan formed Patentanspruch: werden. Außerdem ist für das Verfahren das EinClaim: to be. In addition, for the procedure is the one halten eines scharf eingestellten pH-Wertes wichtig,maintaining a sharply set pH value is important, Verfahren zur Herstellung von Dicyan durch was gerade in großtechnischen Anlagen zu Schwierig-Umsetzen von Cyanwasserstoff und Wasserstoff- 5 keiten führt. Es kommt hinzu, daß der Durchsatz an peroxid in Gegenwart vcn Cupribromid, Cupri- Cyanwasserstoff sehr gering ist und sich auch nicht cyanid oder Cuprinitrat und von Ferriionen nach wesentlich durch Zugabe sogenannter Aktivatoren Patent 2012509. dadurch gekennzeich- verbessern läßtProcess for the production of dicyan by what is difficult to implement in large-scale plants of hydrogen cyanide and hydrogen. Add to that the throughput peroxide in the presence of cupribromide, cupric hydrogen cyanide is and is not very low cyanide or cupric nitrate and ferric ions essentially by adding so-called activators Patent 2012509. Marked by this, can be improved net, daß die Ferriionen in Form von Eisen(III)- Demgegenüber läßt sich das vorliegende Verfahrennet that the ferric ions in the form of iron (III) - In contrast, the present process ehlorid verwendet werden. io wesentlich einfacher technisch durchführen undehlorid can be used. io is much easier to carry out technically and arbeitet mit sehr guten Cyanwasserstoffdurchsätzen.works with very good hydrogen cyanide throughputs. Überschüsse des Oxydationsmittels werden nicht eingesetzt, und diese Überschüsse brauchen auch nicht von dem Reaktionsprodukt in einer speziellen StufeExcesses of the oxidizing agent are not used, and these excesses do not need either of the reaction product in a special stage Gegenstand des Hauptyatents 2012509 ist ein 15 abgetrennt zu werden. Als Nebenprodukt fällt nur Verfahren, in dem die katalytische Oxydation von Wasser an.The subject of main patent 2012509 is a 15 to be detached. As a by-product only falls Process in which the catalytic oxidation of water occurs. Cyanwasserstoff mit Wasserstoffperoxid in Gegenwart Die Erfindung wird an Hand d°.s folgenden Bei-Hydrogen cyanide with hydrogen peroxide in the presence. von Cupribromid, Cupricyanid oder Cuprinitrat und spiels erläutert
zugleich in Gegenwart von Ferriionen durchgeführt R - ; ,
of cupribromide, cupricyanide or cuprinitrate and explained in game
carried out at the same time in the presence of ferric ions R - ; ,
wird. ao Beispielwill. ao example Bei Weiterbildung des Verfahrens wurde gefunden, In einem mit Rührer, Thermometer, Rückfluß-In a further development of the process it was found that in a stirrer, thermometer, reflux die Ferriionen in Form von Eisen(III)-chlorid einzu- kühler und Einlauftauchrohr versehenen 250-ml-to cool the ferric ions in the form of iron (III) chloride and a 250 ml immersion pipe provided setzen. Rundkolben werden 11,2g Cupribromid und 13,5 gset. Round bottom flasks are 11.2 g of cupribromide and 13.5 g Die Konzenirationen des Eisen(m)-chlorids ent- FeCl3 - 6H,O in 50 ml Wasser gelöst und unter star-The concentrations of iron (m) chloride are dissolved in FeCl 3 - 6H, O in 50 ml of water and iprechen den im Patent 2012509 genannten Konzen- 35 kern Rühren mit Eiswasser gekühlt. Innerhalb vonThe concentration core mentioned in patent 2012509 is stirred with ice water and cooled. Within trationen. 60 Minuten wird eine Mischung von 16,2 g flüssigertrations. A mixture of 16.2 g becomes more fluid for 60 minutes Zwar ist es nach der deutschen Patentschrift Blausäure und 64,5 ml 15°/oigem wäßrigen Wasser-According to the German patent specification, it is hydrogen cyanide and 64.5 ml of 15% aqueous water 1163 302 bekannt, Dicyan durch Oxydation von Stoffperoxid zugetropft und die Temperatur zwischen1163 302 known, dicyan added dropwise by oxidation of substance peroxide and the temperature between Cyanwasserstoff mit Sauerstoff in Gegenwart von 10 und 14° C gehalten. Das entstehende Gas enthältMaintained hydrogen cyanide with oxygen in the presence of 10 and 14 ° C. The resulting gas contains Cuprisalzen durchzuführen. Bei diesem Verfahren 30 82 bis 84% der Theorie an Dicyan; der Rest bestehtTo carry out cupris salts. In this process, 82 to 84% of theory of dicyan; the rest consists muß aber mit großen Überschüssen an Sauerstoff ge- aus Chlorcyan, Sauerstoff lmd nicht umgesetzterbut must be prepared from cyanogen chloride, oxygen and unreacted, with large excesses of oxygen arbeitet, d.h., diese Sauerstoffüberschüsse müssen Blausäure.works, i.e. this excess oxygen must be hydrocyanic acid.
DE19702022454 1970-03-17 1970-05-08 Process for the production of dicyan Expired DE2022454C3 (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
DE19702022454 DE2022454C3 (en) 1970-05-08 1970-05-08 Process for the production of dicyan
CH160971A CH557782A (en) 1970-03-17 1971-02-04 METHOD FOR MANUFACTURING DICYAN.
NL717101574A NL143875B (en) 1970-03-17 1971-02-05 PROCESS FOR PREPARING DICYAN.
IL36158A IL36158A (en) 1970-03-17 1971-02-09 Process for the preparation of cyanogen
FR7108128A FR2084375A5 (en) 1970-03-17 1971-03-09 Levulinic acid improved prepn from furfuryl alcohol
BE764361A BE764361A (en) 1970-03-17 1971-03-16 PROCESS FOR THE PREPARATION OF CYANOGEN
JP46014995A JPS5215560B1 (en) 1970-03-17 1971-03-17
CA108,012A CA951870A (en) 1970-03-17 1971-03-17 Process for producing dicyanogen
AT231071A AT308148B (en) 1970-03-17 1971-03-17 Process for the production of dicyan
AT321471A AT313311B (en) 1970-03-17 1971-04-15 Process for the production of dicyan
NL7105148A NL7105148A (en) 1970-03-17 1971-04-16 Cyanogen preparation
GB2360871A GB1338025A (en) 1970-03-17 1971-04-19 Production of cyanogen
CH578871A CH574874A5 (en) 1970-03-17 1971-04-21 Cyanogen preparation
US05/543,367 US4003983A (en) 1970-03-17 1975-01-23 Process of preparing dicyan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702022454 DE2022454C3 (en) 1970-05-08 1970-05-08 Process for the production of dicyan

Publications (3)

Publication Number Publication Date
DE2022454A1 DE2022454A1 (en) 1971-12-09
DE2022454B2 DE2022454B2 (en) 1974-02-28
DE2022454C3 true DE2022454C3 (en) 1974-10-10

Family

ID=5770543

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702022454 Expired DE2022454C3 (en) 1970-03-17 1970-05-08 Process for the production of dicyan

Country Status (1)

Country Link
DE (1) DE2022454C3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2340232T3 (en) 2008-10-22 2017-12-29 Lonza Ag Process for removing hydrogen cyanide from ethanedinitrile
DE102012004113A1 (en) 2012-03-01 2013-09-05 Linde Aktiengesellschaft Process for filling liquid ethanedinitrile and filling device

Also Published As

Publication number Publication date
DE2022454A1 (en) 1971-12-09
DE2022454B2 (en) 1974-02-28

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977