GB523907A - An improved process for obtaining tanning substances from sulphite cellulose waste liquors - Google Patents

An improved process for obtaining tanning substances from sulphite cellulose waste liquors

Info

Publication number
GB523907A
GB523907A GB156339A GB156339A GB523907A GB 523907 A GB523907 A GB 523907A GB 156339 A GB156339 A GB 156339A GB 156339 A GB156339 A GB 156339A GB 523907 A GB523907 A GB 523907A
Authority
GB
United Kingdom
Prior art keywords
improved process
sulphite cellulose
waste liquors
cellulose waste
tanning 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
GB156339A
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
Priority to GB156339A priority Critical patent/GB523907A/en
Publication of GB523907A publication Critical patent/GB523907A/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
    • C14C3/24—Chemical tanning by organic agents using lignin derivatives, e.g. sulfate liquor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Paper (AREA)

Abstract

523,907. Tanning. HONIG, H. Jan. 17, 1939, No. 1563. Drawings to Specification. [Class 76] [Also in Group IV, II, III and XII] A tanning agent practically free from sulphur is made by heating sulphite cellulose liquors with lime under 15 atmospheres pressure so as to reach pH 9 and removing the precipitate. The solution also contains acetate and formate. Specification 496,898 is referred to.
GB156339A 1939-01-17 1939-01-17 An improved process for obtaining tanning substances from sulphite cellulose waste liquors Expired GB523907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB156339A GB523907A (en) 1939-01-17 1939-01-17 An improved process for obtaining tanning substances from sulphite cellulose waste liquors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB156339A GB523907A (en) 1939-01-17 1939-01-17 An improved process for obtaining tanning substances from sulphite cellulose waste liquors

Publications (1)

Publication Number Publication Date
GB523907A true GB523907A (en) 1940-07-25

Family

ID=9724133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB156339A Expired GB523907A (en) 1939-01-17 1939-01-17 An improved process for obtaining tanning substances from sulphite cellulose waste liquors

Country Status (1)

Country Link
GB (1) GB523907A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974789C (en) * 1943-04-10 1961-04-27 Michael Ing Mangold Process for the production of tanning agents from thickened sulphite cellulose liquor or liquor liquor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974789C (en) * 1943-04-10 1961-04-27 Michael Ing Mangold Process for the production of tanning agents from thickened sulphite cellulose liquor or liquor liquor

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