GB189737A - An improved process of tanning - Google Patents

An improved process of tanning

Info

Publication number
GB189737A
GB189737A GB74/22A GB7422A GB189737A GB 189737 A GB189737 A GB 189737A GB 74/22 A GB74/22 A GB 74/22A GB 7422 A GB7422 A GB 7422A GB 189737 A GB189737 A GB 189737A
Authority
GB
United Kingdom
Prior art keywords
tanning
improved process
decomposed
prepared
heating
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
GB74/22A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB189737A publication Critical patent/GB189737A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00—Tanning; Compositions for tanning
    • C14C3/02—Chemical tanning
    • C14C3/08—Chemical tanning by organic agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

Ammonium tannate is prepared by adding ammonia to concentrated solutions of tanning extracts, and may be decomposed by heating the solution, preferably under reduced pressure, or by treatment with carbon dioxide.
GB74/22A 1921-11-30 1922-01-03 An improved process of tanning Expired GB189737A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES189737X 1921-11-30

Publications (1)

Publication Number Publication Date
GB189737A true GB189737A (en) 1923-03-01

Family

ID=8244689

Family Applications (1)

Application Number Title Priority Date Filing Date
GB74/22A Expired GB189737A (en) 1921-11-30 1922-01-03 An improved process of tanning

Country Status (1)

Country Link
GB (1) GB189737A (en)

Similar Documents

Publication Publication Date Title
GB189737A (en) An improved process of tanning
GB152427A (en) An improved process for colouring wood grey or black
GB425466A (en) Improvements in and relating to methods of producing a sulphuretted polymerizate of acrylic acid, its derivatives or homologues
GB253549A (en) Improvements in or relating to the treatment of hides
GB345873A (en) Process for obtaining sulphuretted hydrogen from aqueous solutions of alkali carbonate, alkali bicarbonate and alkali hydrosulphide
GB204052A (en) An improvement relating to the vulcanisation of indiarubber
GB167769A (en) Improvements in the treatment of ammonium chloride
GB186859A (en) Manufacture of ª‰-thionaphthisatin
GB137632A (en) Improvements in the manufacture of caustic potash
GB305197A (en) Process of improving the resistance to corrosion of magnesium and magnesium alloys
GB137683A (en) Improvements in or relating to the treatment of inferior tobacco
GB215734A (en)
GB203051A (en) Manufacture of 2:3-diamino-anthraquinone
GB920016A (en) Treatment of water
GB282001A (en) Para-amino-ortho-benzoyl-benzoic acid and a process of making the same
GB173742A (en) Improved process of treating magnesium or magnesium alloys
GB137214A (en) Improvements in the manufacture of 3:6- diaminoacridine
GB730686A (en) Process for the manufacture of active carbon and active carbon obtained by this process
GB198645A (en) Improvements in and relating to processes of manufacturing sulphate of chromium
GB174554A (en) Improved process for the manufacture of hydroquinone
GB226699A (en) Improvements in method for production of cyanogen compounds
GB139156A (en) Improvements in method of making decolorising carbon
GB577797A (en) Improvements in or relating to the manufacture of leather
GB198067A (en) Improvements in the treatment of rubber and the like
GB161244A (en) Improved method of and means for use in the manufacture of ammonia