GB194727A - Process of treating pyro smokeless powder - Google Patents

Process of treating pyro smokeless powder

Info

Publication number
GB194727A
GB194727A GB7256/23A GB725623A GB194727A GB 194727 A GB194727 A GB 194727A GB 7256/23 A GB7256/23 A GB 7256/23A GB 725623 A GB725623 A GB 725623A GB 194727 A GB194727 A GB 194727A
Authority
GB
United Kingdom
Prior art keywords
diphenylamine
product
liquid
powder
extraction
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
GB7256/23A
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 GB194727A publication Critical patent/GB194727A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
    • C06B21/0091—Elimination of undesirable or temporary components of an intermediate or finished product, e.g. making porous or low density products, purifying, stabilising, drying; Deactivating; Reclaiming

Abstract

Nitrocellulose powder is heated in a non-solvent organic liquid to a temperature below 150 DEG C., preferably between 60 DEG C. and 135 DEG C., in order to obtain a product giving solutions, which compared with those made from the original product, show a much lower viscosity and which are suitable as coating compositions; in addition to or alternatively to this, by a suitable choice of liquid, the diphenylamine present as stabilizer, and its conversion products, may be extracted, giving a light coloured product. Suitable non-solvent liquids are:-ethyl, propyl and butyl alcohols, toluene, benzene, and xylene, or a mixture of these; if, however, the extraction of the diphenylamine is desired, then of these liquids, ethyl alcohol is preferred. The treatment is preferably carried out at the boiling point of the selected liquid, although the use of an autoclave is permissible. The powder may be ground, preferably under alcohol, in order to facilitate the extraction of the diphenylamine.
GB7256/23A 1922-03-13 1923-03-13 Process of treating pyro smokeless powder Expired GB194727A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US194727XA 1922-03-13 1922-03-13

Publications (1)

Publication Number Publication Date
GB194727A true GB194727A (en) 1923-08-02

Family

ID=21793404

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7256/23A Expired GB194727A (en) 1922-03-13 1923-03-13 Process of treating pyro smokeless powder

Country Status (1)

Country Link
GB (1) GB194727A (en)

Similar Documents

Publication Publication Date Title
GB1022923A (en) Polypyrrolidone solutions
GB194727A (en) Process of treating pyro smokeless powder
GB2014605A (en) Treatment of Pyrolysis Fuel Oil
GB987746A (en) Process for producing stable diisocyanate compositions
US2366525A (en) Compositions of matter and methods
GB343510A (en) The manufacture of refined gutta percha, balata and the like
US1710470A (en) Liquefied rubber composition and method of making the same
GB405054A (en) Process for the manufacture of products derived from polyhydric alcohols and polybasic acids
GB917749A (en) Preparation of 2,6-di-t-alkylphenoxy boron dihalides
US1746142A (en) Liquefied-rubber composition and method of making the same
GB699370A (en) Improvements relating to processes for the separation of the components of bitumen pitches
SU96050A1 (en) The method of obtaining varnish bitumen
GB446448A (en) Improvements in or relating to methods of treating waste rubber for the recovery of other products
GB255684A (en) An improved bituminous paint and process of preparing the same
GB576493A (en) Improvements in or relating to the production of pest control compositions
GB340107A (en) Improved process for the heat treatment of plants and fruits containing oil
GB413942A (en) Process for producing tobacco free from nicotine
GB457781A (en) Plastic materials containing rubber
GB236928A (en) Improvements in the treatment of wood oil used in the manufacture of varnishes and paints and for other purposes
GB458582A (en) Improvements in or relating to processes of improving shortening, and the improved shortening resulting therefrom
GB635352A (en) Improvements in and relating to bodying of vegetable drying oils
GB384197A (en) Process for producing tea entirely or almost entirely free from theine
GB425366A (en) Process for the manufacture of new conversion products from natural resins and derivatives thereof
GB397309A (en) A process for dehydrating or wetting aqueous substances with organic liquids
GB327166A (en) Improvements in the working up of crude turpentine