GB1062544A - Process for deoiling a paraffinic wax - Google Patents

Process for deoiling a paraffinic wax

Info

Publication number
GB1062544A
GB1062544A GB1660865A GB1660865A GB1062544A GB 1062544 A GB1062544 A GB 1062544A GB 1660865 A GB1660865 A GB 1660865A GB 1660865 A GB1660865 A GB 1660865A GB 1062544 A GB1062544 A GB 1062544A
Authority
GB
United Kingdom
Prior art keywords
wax
filtrate
deoiling
filtration zone
cooled
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
GB1660865A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of GB1062544A publication Critical patent/GB1062544A/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
    • C10G73/02—Recovery of petroleum waxes from hydrocarbon oils; Dewaxing of hydrocarbon oils
    • C10G73/06—Recovery of petroleum waxes from hydrocarbon oils; Dewaxing of hydrocarbon oils with the use of solvents
    • 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
    • C10G73/36—Recovery of petroleum waxes from other compositions containing oil in minor proportions, from concentrates or from residues; De-oiling, sweating

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)
  • Fats And Perfumes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A paraffinic wax is de-oiled by cooling to its cloud point, further cooling by the addition of cold filtrate, passing the cooled wax/filtrate mixture to a crystallization zone and subsequently to a filtration zone, introducing deoiling solvent into the filtration zone as a washing liquid, recovering a liquid filtrate containing solvent, and solid wax, from the filtration zone, and recycling at least part of the filtrate for adding to the oily wax. The "cloud point" is the temperature at which solid wax starts to precipitate from the oily wax. Various deoiling solvents are listed, a 2: 1 by volume mixture of methyl ethyl ketone <FORM:1062544/C4-C5/1> and toluene being preferred. Oily wax from 1 is water cooled in 5, mixed with cold filtrate from 32 and passed through crystallization zones 9, 11; cooled slurry from 11 is filtered at 13, 15 with the addition of fresh solvent from 41, and deoiled wax is withdrawn at 28.
GB1660865A 1964-04-20 1965-04-20 Process for deoiling a paraffinic wax Expired GB1062544A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36117364A 1964-04-20 1964-04-20

Publications (1)

Publication Number Publication Date
GB1062544A true GB1062544A (en) 1967-03-22

Family

ID=23420948

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1660865A Expired GB1062544A (en) 1964-04-20 1965-04-20 Process for deoiling a paraffinic wax

Country Status (3)

Country Link
DE (1) DE1545357A1 (en)
GB (1) GB1062544A (en)
NL (1) NL6504973A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106609164A (en) * 2016-12-19 2017-05-03 江西麻山化工有限公司 Method for deoiling microcrystalline wax

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106609164A (en) * 2016-12-19 2017-05-03 江西麻山化工有限公司 Method for deoiling microcrystalline wax

Also Published As

Publication number Publication date
DE1545357A1 (en) 1970-01-02
NL6504973A (en) 1965-10-21

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