GB299722A - - Google Patents

Info

Publication number
GB299722A
GB299722A GB31352/28A GB3135228A GB299722A GB 299722 A GB299722 A GB 299722A GB 31352/28 A GB31352/28 A GB 31352/28A GB 3135228 A GB3135228 A GB 3135228A GB 299722 A GB299722 A GB 299722A
Authority
GB
United Kingdom
Prior art keywords
chloracetaldehyde
hydrochloric acid
per cent
column
concentration
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
GB31352/28A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB299722A publication Critical patent/GB299722A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds

Landscapes

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

Abstract

299,722. I. G. Farbenindustrie Akt.- Ges. Oct. 28, 1927, [Convention date]. Addition to 299,319. Chloracetaldehyde, obtained according to the parent Specification, may be separated from the aqueous hydrochloric acid produced by a single distillation. The concentration of hydrochloric acid in the aqueous solution is increased to 20 per cent before distillation, by passing hydrogen chloride gas, by adding fuming hydrochloric acid, or sodium or other chloride and an equivalent quantity of sulphuric acid. By the use of a suitable column still, a concentration of about 70-80 per cent chloracetaldehyde. is obtained By passing the vapours, after leaving the column, over calcium chloride at 100‹ C., the chloracetaldehyde may be obtained pure, in an 85-90 per cent yield. The residue is distilled without a column and is introduced into the next operation.
GB31352/28A 1927-10-22 1928-10-29 Expired GB299722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE299319X 1927-10-22

Publications (1)

Publication Number Publication Date
GB299722A true GB299722A (en) 1929-08-29

Family

ID=6091217

Family Applications (2)

Application Number Title Priority Date Filing Date
GB30524/28A Expired GB299319A (en) 1927-10-22 1928-10-22 Manufacture of chloracetaldehyde
GB31352/28A Expired GB299722A (en) 1927-10-22 1928-10-29

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB30524/28A Expired GB299319A (en) 1927-10-22 1928-10-22 Manufacture of chloracetaldehyde

Country Status (1)

Country Link
GB (2) GB299319A (en)

Also Published As

Publication number Publication date
GB299319A (en) 1929-08-15

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