GB651770A - Improvements in the neutralisation of alkaline crude coal tar acids prior to distillation - Google Patents

Improvements in the neutralisation of alkaline crude coal tar acids prior to distillation

Info

Publication number
GB651770A
GB651770A GB2397748A GB2397748A GB651770A GB 651770 A GB651770 A GB 651770A GB 2397748 A GB2397748 A GB 2397748A GB 2397748 A GB2397748 A GB 2397748A GB 651770 A GB651770 A GB 651770A
Authority
GB
United Kingdom
Prior art keywords
alkaline
coal tar
tar acids
neutralisation
distillation
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
GB2397748A
Inventor
George Anthony Dummet
George Henry Botham
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.)
SPX Flow Technology Crawley Ltd
Original Assignee
APV Corp Ltd
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 APV Corp Ltd filed Critical APV Corp Ltd
Priority to GB2397748A priority Critical patent/GB651770A/en
Publication of GB651770A publication Critical patent/GB651770A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C1/00—Working-up tar
    • C10C1/18—Working-up tar by extraction with selective solvents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Working-Up Tar And Pitch (AREA)

Abstract

Alkaline crude coal tar acids are neutralized by a process in which a predetermined volume of the crude alkaline tar acids (of known alkalinity) is mixed with excess dilute sulphuric acid to form two layers, the concentration of the sulphuric acid being so selected that the ratio of the volumes of the layers is not less than 1 : 10 nor greater than 1 : 1. The acid layer after strengthening may be recycled, when it will contain sodium sulphate. Free acid left in the tar acid may be neutralized with the theoretical amount of crude alkaline tar mixture. An example is given.
GB2397748A 1948-09-13 1948-09-13 Improvements in the neutralisation of alkaline crude coal tar acids prior to distillation Expired GB651770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2397748A GB651770A (en) 1948-09-13 1948-09-13 Improvements in the neutralisation of alkaline crude coal tar acids prior to distillation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2397748A GB651770A (en) 1948-09-13 1948-09-13 Improvements in the neutralisation of alkaline crude coal tar acids prior to distillation

Publications (1)

Publication Number Publication Date
GB651770A true GB651770A (en) 1951-04-11

Family

ID=10204433

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2397748A Expired GB651770A (en) 1948-09-13 1948-09-13 Improvements in the neutralisation of alkaline crude coal tar acids prior to distillation

Country Status (1)

Country Link
GB (1) GB651770A (en)

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