GB826185A - A contact apparatus and a process for the continuous production of hydrocyanic acid - Google Patents

A contact apparatus and a process for the continuous production of hydrocyanic acid

Info

Publication number
GB826185A
GB826185A GB1037657A GB1037657A GB826185A GB 826185 A GB826185 A GB 826185A GB 1037657 A GB1037657 A GB 1037657A GB 1037657 A GB1037657 A GB 1037657A GB 826185 A GB826185 A GB 826185A
Authority
GB
United Kingdom
Prior art keywords
metres
tubes
formamide
millimetres
sectional area
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
GB1037657A
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
Deutsche Gold und Silber Scheideanstalt
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, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB826185A publication Critical patent/GB826185A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof
    • C01C3/02—Preparation, separation or purification of hydrogen cyanide
    • C01C3/0204—Preparation, separation or purification of hydrogen cyanide from formamide or from ammonium formate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

<PICT:0826185/III/1> In a contact apparatus for the continuous production of hydrocyanic acid from vaporized formamide a reaction chamber has an internal cross-sectional area which increases in the direction of flow of the formamide and a catalytically active surface area which also increases in the direction of flow, but to a greater extent than the cross-sectional area. The temperature of the catalytically active surface may also increase in the direction of flow of the formamide. The apparatus shown has a reaction chamber of three sections of increasing cross-sectional area, each comprising a plurality of connected iron tubes heated by circulating gases at 340-360 DEG C., 360-390 DEG C., 410 DEG C. respectively. The first section contains 20 tubes of 1 1/2 metres in length and 50 millimetres internal diameter, the second section contains 65 tubes, 2 metres in length and internal diameter of 38 millimetres and the third section contains 240 tubes, 3 metres in length and internal diameter of 20 millimetres, giving catalytically active surface areas increasing from 4.7 square metres to 15.5 square metres and 45.2 square metres respectively.
GB1037657A 1956-04-12 1957-03-29 A contact apparatus and a process for the continuous production of hydrocyanic acid Expired GB826185A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED22746A DE1024070B (en) 1956-04-12 1956-04-12 Continuous production of hydrocyanic acid

Publications (1)

Publication Number Publication Date
GB826185A true GB826185A (en) 1959-12-31

Family

ID=7037567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1037657A Expired GB826185A (en) 1956-04-12 1957-03-29 A contact apparatus and a process for the continuous production of hydrocyanic acid

Country Status (2)

Country Link
DE (1) DE1024070B (en)
GB (1) GB826185A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009056470A1 (en) * 2007-10-29 2009-05-07 Basf Se Improved method for producing hydrocyanic acid

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2621118A (en) * 1949-02-05 1952-12-09 New Jersey Zinc Co Process for fluid bed operation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009056470A1 (en) * 2007-10-29 2009-05-07 Basf Se Improved method for producing hydrocyanic acid

Also Published As

Publication number Publication date
DE1024070B (en) 1958-02-13

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