GB271236A - Improved process for stabilising hydrocyanic acid - Google Patents

Improved process for stabilising hydrocyanic acid

Info

Publication number
GB271236A
GB271236A GB1176926A GB1176926A GB271236A GB 271236 A GB271236 A GB 271236A GB 1176926 A GB1176926 A GB 1176926A GB 1176926 A GB1176926 A GB 1176926A GB 271236 A GB271236 A GB 271236A
Authority
GB
United Kingdom
Prior art keywords
acid
absorbent
treated
hydrocyanic
substances
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
GB1176926A
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
Priority to GB1176926A priority Critical patent/GB271236A/en
Publication of GB271236A publication Critical patent/GB271236A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01CAMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00Cyanogen; Compounds thereof
    • C01C3/06Stabilisation of hydrogen cyanide

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Inorganic Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

271,236. Deutsche Goldund Silber- Scheideanstalt vorm. Roessler, and Kerschbaum, F. May 5, 1926. Fumigants. - In the stabilization of hydrocyanic acid bv admixture with an absorbent such as diatomite, infusorial earth, kieselguhr, &c., the latter before use is freed from objectionable basic substances such as calcium sulphide, carbonate or oxide by pretreatment with an acid such as sulphuric or hydrochloric acid, an acid salt such as sodium bisulphate or an acid derivative, such as an ester of chloracetic acid, ethyl sulphuryl chloride, or the methyl ester of chlorocarbonic acid. Certain of the esters have a stabilizing effect on the hydrocyanic acid or are irritants and serve as warning substances. The absorbent may be treated when in the natural state or after roasting, and an excess of acid over that theoretically needed may be used, or any excess may be washed out. Instead of, or in addition to, being subjected to the acid treatment, the absorbent may be so treated as to contain a large amount of oxygen, as by blowing air through the heated absorbent during roasting. The treated absorbent may be allowed to absorb the maximum quantity of hydrocyanic acid, or larger amounts of the acid may bs mixed with the absorbent. Irritant and warning substances, e.g. chlor-picrin or cyanogen chloride, may be added to the acid or to the mixture of acid and absorbent. Specifications 230,346 and 232,834, [Class 1 (ii), Inorganic compounds, other than &c.], are referred to.
GB1176926A 1926-05-05 1926-05-05 Improved process for stabilising hydrocyanic acid Expired GB271236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1176926A GB271236A (en) 1926-05-05 1926-05-05 Improved process for stabilising hydrocyanic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1176926A GB271236A (en) 1926-05-05 1926-05-05 Improved process for stabilising hydrocyanic acid

Publications (1)

Publication Number Publication Date
GB271236A true GB271236A (en) 1927-05-26

Family

ID=9992361

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1176926A Expired GB271236A (en) 1926-05-05 1926-05-05 Improved process for stabilising hydrocyanic acid

Country Status (1)

Country Link
GB (1) GB271236A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759797A (en) * 1950-12-11 1956-08-21 Union Oil Co Process for separating hydrogen cyanide from acidic gaseous mixtures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759797A (en) * 1950-12-11 1956-08-21 Union Oil Co Process for separating hydrogen cyanide from acidic gaseous mixtures

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