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GB157715A - A process for the recovery of resinous substances from waste sulphuric acid - Google Patents

A process for the recovery of resinous substances from waste sulphuric acid

Info

Publication number
GB157715A
GB157715A GB1415/21A GB141521A GB157715A GB 157715 A GB157715 A GB 157715A GB 1415/21 A GB1415/21 A GB 1415/21A GB 141521 A GB141521 A GB 141521A GB 157715 A GB157715 A GB 157715A
Authority
GB
United Kingdom
Prior art keywords
sulphuric acid
waste sulphuric
recovery
solution
resinous 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
GB1415/21A
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.)
DEUTSCH LUXEMBURGISCHE BERGWER
Original Assignee
DEUTSCH LUXEMBURGISCHE BERGWER
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 DEUTSCH LUXEMBURGISCHE BERGWER filed Critical DEUTSCH LUXEMBURGISCHE BERGWER
Publication of GB157715A publication Critical patent/GB157715A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F240/00—Copolymers of hydrocarbons and mineral oils, e.g. petroleum resins

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

The resinous material present in waste sulphuric acid from the purification of coal-tar oils is recovered by adding water-care being taken that the temperature does not rise above 50 DEG C.-and extracting the solution with a benzene hydrocarbon, preferably of low boiling point. On evaporation of the solvent, a clear yellow powder remains.ALSO:The resinous material present in waste sulphuric acid from the purification of coal-tar oils is separated by adding water, extracting the solution with a benzene hydrocarbon, and removing the resin solution.
GB1415/21A 1916-05-11 1921-01-10 A process for the recovery of resinous substances from waste sulphuric acid Expired GB157715A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE157715X 1916-05-11

Publications (1)

Publication Number Publication Date
GB157715A true GB157715A (en) 1922-03-30

Family

ID=5678962

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1415/21A Expired GB157715A (en) 1916-05-11 1921-01-10 A process for the recovery of resinous substances from waste sulphuric acid

Country Status (1)

Country Link
GB (1) GB157715A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2445193A (en) * 1943-12-07 1948-07-13 Neville Co Deashing sulfonated coumaroneindene resins

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2445193A (en) * 1943-12-07 1948-07-13 Neville Co Deashing sulfonated coumaroneindene resins

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