GB1193946A - Process for the Separation of Adductable Compounds by means of Adduct Formation with Urea - Google Patents
Process for the Separation of Adductable Compounds by means of Adduct Formation with UreaInfo
- Publication number
- GB1193946A GB1193946A GB762669A GB762669A GB1193946A GB 1193946 A GB1193946 A GB 1193946A GB 762669 A GB762669 A GB 762669A GB 762669 A GB762669 A GB 762669A GB 1193946 A GB1193946 A GB 1193946A
- Authority
- GB
- United Kingdom
- Prior art keywords
- urea
- adductable
- solvent
- separation
- feed
- 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
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
- C10G73/24—Recovery of petroleum waxes from hydrocarbon oils; Dewaxing of hydrocarbon oils by formation of adducts
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B63/00—Purification; Separation; Stabilisation; Use of additives
- C07B63/02—Purification; Separation; Stabilisation; Use of additives by treatment giving rise to a chemical modification
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/12—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers
- G05B19/14—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers using punched cards or tapes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,193,946. Urea adduction. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 12 Feb., 1969 [14 Feb., 1968], No. 7626/69. Heading C5E. In a process for the separation of one or more adductable organic compounds from a feed containing them by means of adduct formation with urea using a solvent for urea and a solvent for the feed, the solvent for the feed comprises one or more aromatic hydrocarbons and one or more components being capable of forming a solid adduct with urea under the prevailing adductformation temperature and having a boiling- point lower than that of the adductable organic chemicals. As applied to dewaxing oils the feed comprises a vacuum distillate dissolved in a toluene-heptane mixture (with comparative examples using 100% toluene and 100% heptane) and the urea is dissolved to saturation in water. Other comparative solvents mentioned (not of the invention) are pentane and cyclohexane.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6802069A NL6802069A (en) | 1968-02-14 | 1968-02-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1193946A true GB1193946A (en) | 1970-06-03 |
Family
ID=19802757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB762669A Expired GB1193946A (en) | 1968-02-14 | 1969-02-12 | Process for the Separation of Adductable Compounds by means of Adduct Formation with Urea |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE728313A (en) |
| DE (1) | DE1907026A1 (en) |
| FR (1) | FR2001870A1 (en) |
| GB (1) | GB1193946A (en) |
| NL (1) | NL6802069A (en) |
-
1968
- 1968-02-14 NL NL6802069A patent/NL6802069A/xx unknown
-
1969
- 1969-02-12 GB GB762669A patent/GB1193946A/en not_active Expired
- 1969-02-12 FR FR6903337A patent/FR2001870A1/fr not_active Withdrawn
- 1969-02-12 DE DE19691907026 patent/DE1907026A1/en active Pending
- 1969-02-12 BE BE728313D patent/BE728313A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE728313A (en) | 1969-08-12 |
| NL6802069A (en) | 1969-08-18 |
| DE1907026A1 (en) | 1969-08-21 |
| FR2001870A1 (en) | 1969-10-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |