GB488381A - Improvements in the bleaching of montan wax - Google Patents

Improvements in the bleaching of montan wax

Info

Publication number
GB488381A
GB488381A GB337437A GB337437A GB488381A GB 488381 A GB488381 A GB 488381A GB 337437 A GB337437 A GB 337437A GB 337437 A GB337437 A GB 337437A GB 488381 A GB488381 A GB 488381A
Authority
GB
United Kingdom
Prior art keywords
per cent
acid
chromic
montan wax
sulphuric acid
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
GB337437A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB337437A priority Critical patent/GB488381A/en
Publication of GB488381A publication Critical patent/GB488381A/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
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G73/00—Recovery or refining of mineral waxes, e.g. montan wax

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Montan wax is bleached by treating first with hydrogen peroxide and then with chromic acid. Treatment with 5 per cent of peroxide as a 1-30 per cent solution at 90-120 DEG C. for 1-6 hrs., after adding acid, neutral, or alkaline aqueous or organic liquids, is suitable. The chromic acid treatment is usually as described in Specification 302,626, [Class 91], chromic anhydride, or sodium, potassium, or ammonium bichromate and sulphuric acid being used. In an example, 1000 kg. of crude montan wax is fused, 4,500 kg. of 40 per cent sulphuric acid mixed in, and 500 litres of 30 per cent peroxide added little by little and the whole stirred for 3 hrs. at 105 DEG C. 1000 Kg. of chromic anhydride is slowly added and the whole stirred until the anhydride is used up; the wax is washed with sulphuric acid and then with water.
GB337437A 1937-02-04 1937-02-04 Improvements in the bleaching of montan wax Expired GB488381A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB337437A GB488381A (en) 1937-02-04 1937-02-04 Improvements in the bleaching of montan wax

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB337437A GB488381A (en) 1937-02-04 1937-02-04 Improvements in the bleaching of montan wax

Publications (1)

Publication Number Publication Date
GB488381A true GB488381A (en) 1938-07-06

Family

ID=9757109

Family Applications (1)

Application Number Title Priority Date Filing Date
GB337437A Expired GB488381A (en) 1937-02-04 1937-02-04 Improvements in the bleaching of montan wax

Country Status (1)

Country Link
GB (1) GB488381A (en)

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