US2731457A - Production and use of a urea suspension - Google Patents
Production and use of a urea suspension Download PDFInfo
- Publication number
- US2731457A US2731457A US22655751A US2731457A US 2731457 A US2731457 A US 2731457A US 22655751 A US22655751 A US 22655751A US 2731457 A US2731457 A US 2731457A
- Authority
- US
- United States
- Prior art keywords
- urea
- oil
- hydrocarbon
- petroleum
- suspension
- 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 - Lifetime
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
-
- 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
- C10G31/00—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for
- C10G31/06—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for by heating, cooling, or pressure treatment
Definitions
- a mixture of methanol and hydrocanbondiluent is removed overheadi fromfractionator 13 by line.1.6", through cooler'1'7 and line 18 and is recycled to the reactor; 1 by line. 4:
- a mixture of urea-inactive components of: the feedstock together with hydrocarbon diluent is removed. from filter 6' by lines-19 and constitutes-:- thefinishedfuei; Liquidurea; is removed from the sepa-- ratorglo tby 1ine:20;an,d-is. passed to an. emulsifier 21 fed with hot-.fcedzoil. by line: 222from heater 28.
- the emulsified-rurea/oil mixture is removed by line.- 23.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB12287/50A GB714327A (en) | 1950-05-17 | 1950-05-17 | Improvements in or relating to the production of urea in finely divided form and to the refining of petroleum by means of urea in finely divided form |
Publications (1)
Publication Number | Publication Date |
---|---|
US2731457A true US2731457A (en) | 1956-01-17 |
Family
ID=10001784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US22655751 Expired - Lifetime US2731457A (en) | 1950-05-17 | 1951-05-16 | Production and use of a urea suspension |
Country Status (4)
Country | Link |
---|---|
US (1) | US2731457A (de) |
BE (1) | BE503277A (de) |
GB (1) | GB714327A (de) |
NL (1) | NL75904C (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2911350A (en) * | 1959-11-03 | Production of low cold-test oils by |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1049032B (de) * | 1955-04-29 | 1959-01-22 | Oelwerke Julius Schindler G M | Verfahren zum kontinuierlichen Entparaffinieren von Kohlenwasserstoffoelen mittels Harnstoffaddukten |
IT1096661B (it) * | 1978-06-13 | 1985-08-26 | Montedison Spa | Procedimento per la preparazione di prodotti in forma sferoidale solidi a temperatura ambiente |
US6725651B2 (en) | 2000-11-16 | 2004-04-27 | Toyota Jidosha Kabushiki Kaisha | Reducing agent for emission control system, reducing-agent supply device, and emission control system using the reducing agent |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1558619A (en) * | 1921-02-05 | 1925-10-27 | Sharples Specialty Co | Method and apparatus for avoiding shock chill in precipitating substances from liquids |
US2031117A (en) * | 1932-10-24 | 1936-02-18 | Union Oil Co | Process for dewaxing oil |
US2499820A (en) * | 1947-02-21 | 1950-03-07 | Thiourea-hydrocarbon complexes | |
FR959374A (de) * | 1947-01-07 | 1950-03-28 | ||
US2606140A (en) * | 1948-12-30 | 1952-08-05 | Texas Co | Separation of wax constituents and the like from oil |
-
1950
- 1950-05-17 GB GB12287/50A patent/GB714327A/en not_active Expired
-
1951
- 1951-05-10 NL NL161132A patent/NL75904C/xx active
- 1951-05-16 US US22655751 patent/US2731457A/en not_active Expired - Lifetime
- 1951-05-16 BE BE503277D patent/BE503277A/xx unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1558619A (en) * | 1921-02-05 | 1925-10-27 | Sharples Specialty Co | Method and apparatus for avoiding shock chill in precipitating substances from liquids |
US2031117A (en) * | 1932-10-24 | 1936-02-18 | Union Oil Co | Process for dewaxing oil |
FR959374A (de) * | 1947-01-07 | 1950-03-28 | ||
US2499820A (en) * | 1947-02-21 | 1950-03-07 | Thiourea-hydrocarbon complexes | |
US2606140A (en) * | 1948-12-30 | 1952-08-05 | Texas Co | Separation of wax constituents and the like from oil |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2911350A (en) * | 1959-11-03 | Production of low cold-test oils by |
Also Published As
Publication number | Publication date |
---|---|
BE503277A (de) | 1951-06-15 |
GB714327A (en) | 1954-08-25 |
NL75904C (de) | 1954-09-15 |
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