GB760365A - Processes for the removal of wax from mineral oils - Google Patents

Processes for the removal of wax from mineral oils

Info

Publication number
GB760365A
GB760365A GB17303/54A GB1730354A GB760365A GB 760365 A GB760365 A GB 760365A GB 17303/54 A GB17303/54 A GB 17303/54A GB 1730354 A GB1730354 A GB 1730354A GB 760365 A GB760365 A GB 760365A
Authority
GB
United Kingdom
Prior art keywords
solvent
solvent mixture
dewaxing
fractions
mixture
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
GB17303/54A
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.)
Bataafsche Petroleum Maatschappij NV
Original Assignee
Bataafsche Petroleum Maatschappij NV
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 Bataafsche Petroleum Maatschappij NV filed Critical Bataafsche Petroleum Maatschappij NV
Publication of GB760365A publication Critical patent/GB760365A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
    • B60C17/01—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional inflatable supports which become load-supporting in emergency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
    • B60C15/0072—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion with ply reverse folding, i.e. carcass layer folded around the bead core from the outside to the inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C5/00—Inflatable pneumatic tyres or inner tubes
    • B60C5/12—Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim
    • B60C5/14—Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim with impervious liner or coating on the inner wall of the tyre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0042—Reinforcements made of synthetic materials
    • 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

Abstract

760,365. Dewaxing mineral oils. NAAMLOOZE VENNOOTSCHAP DE BATAAF.. SCHE PETROLEUM MAATSCHAPPIJ. June 11, 1954 [June 15, 1953], No. 17303/54. Drawings to Specification. Class 91. Distillate mineral lubricating oil fractions and residual mineral lubricating oil fractions are dewaxed in turn in the same dewaxing plant, which is operated continuously, a solvent mixture consisting of a solvent and an anti-solvent possessing different average volatilities being cycled at an approximately constant rate through the system, and the recovery of the solvent mixture following dewaxing being effected by a plurality of sequential vaporization steps. The relative proportions of solvent and anti-solvent in the solvent mixture are adjusted immediately after beginning the dewaxing of the distillate fractions so that the solvent mixture is best suited to dewax distillate fractions and the relative proportions are again adjusted towards the end of the dewaxing of the distillate fractions so that the solvent mixture is again best suited to dewax residual fractions. Assuming the solvent mixture to consist of components A and B, the adjustment of the relative proportions of these in the solvent mixture is effected as follows:-The sequence of vaporization steps is arranged so that solvent mixture rich in A can, as desired, be diverted from one or some such steps to a storage zone Sa and solvent mixture rich in B can, as desired be diverted from other such vaporization steps to a storage zone Sb. The concentration of A in the circulating solvent mixture is increased at the beginning of the dewaxing of the distillate fractions by adding solvent mixture from Sa until the desired increase is attained and, at the same time, diverting a solvent mixture as described above to Sb. The concentration of B in the circulating solvent mixture is increased towards the end of the dewaxing of the distillate fractions by adding solvent mixture from Sb until the desired increase is attained and, at the same time, diverting a solvent mixture as described to Sa.. Apparatus for carrying out the process is described. The distillate fractions may include raffinates from the solvent extraction of mineral lubricating oil distillate fractions. Similarly, the residual fractions may include raffinates from the solvent extraction of deasphaltized short residues, which short residues have been obtained from the vacuum distillation of wax-containing mineral oil crudes or topped crude mineral oil stocks. Both solvent and anti-solvent may consist of a plurality of substances. Suitable solvent mixtures are benzene (solvent), and furfural (anti-solvent); benzene (solvent), and acetone (anti-solvent); toluene- and - benzene (solvent), and methyl ethyl ketone (anti-solvent); toluene (solvent), and methyl isobutyl ketone (anti-solvent); or liquid sulphur dioxide (solvent) and dichlorethylene (anti-solvent). In an example, the process is applied to the dewaxing in turn of a solvent-extracted mineral lubricating oil distillate and of a raffinate obtained by solvent extracting a deasphalted petroleum short residue, the solvent mixture being a blend of toluene and methyl ethyl ketone.
GB17303/54A 1953-06-15 1954-06-11 Processes for the removal of wax from mineral oils Expired GB760365A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US760365XA 1953-06-15 1953-06-15
US325340TA 1953-10-09 1953-10-09
AT183334T 1953-10-09

Publications (1)

Publication Number Publication Date
GB760365A true GB760365A (en) 1956-10-31

Family

ID=31981689

Family Applications (2)

Application Number Title Priority Date Filing Date
GB18228/53A Expired GB737760A (en) 1953-06-15 1953-07-01 Improvements in or relating to chafer strips for tubeless tire
GB17303/54A Expired GB760365A (en) 1953-06-15 1954-06-11 Processes for the removal of wax from mineral oils

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB18228/53A Expired GB737760A (en) 1953-06-15 1953-07-01 Improvements in or relating to chafer strips for tubeless tire

Country Status (10)

Country Link
AT (1) AT183334B (en)
BE (1) BE521641A (en)
CH (1) CH325340A (en)
FR (1) FR1084382A (en)
GB (2) GB737760A (en)
IE (1) IE20763B1 (en)
IT (1) IT502499A (en)
NL (1) NL85994C (en)
NO (1) NO92642A (en)
SE (1) SE171537A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2937684A (en) * 1955-06-13 1960-05-24 Dayton Rubber Company Pneumatic tire
US2879824A (en) * 1955-08-10 1959-03-31 Firestone Tire & Rubber Co Coated tubeless tire chafer strip
BE549692A (en) * 1955-09-15
BE552399A (en) * 1955-11-14 1900-01-01
NL218391A (en) * 1956-07-24
DE1065287B (en) * 1957-06-21
US2947341A (en) * 1957-08-15 1960-08-02 Firestone Tire & Rubber Co Tubeless tire
US2947343A (en) * 1957-09-18 1960-08-02 Firestone Tire & Rubber Co Chafer for tubeless tires
NL131397C (en) * 1963-08-01 Michelin & Cie
JP2664062B2 (en) * 1988-05-18 1997-10-15 住友ゴム工業 株式会社 Radial tire for heavy vehicles

Also Published As

Publication number Publication date
BE521641A (en)
SE171537A (en) 1960-05-31
IE20763B1 (en) 1956-02-01
CH325340A (en) 1957-10-31
IT502499A (en)
NO92642A (en)
NL85994C (en)
IE20763L (en) 1954-01-30
AT183334B (en) 1955-09-26
FR1084382A (en) 1955-01-19
GB737760A (en) 1955-09-28

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