NL6800820A - - Google Patents
Info
- Publication number
- NL6800820A NL6800820A NL6800820A NL6800820A NL6800820A NL 6800820 A NL6800820 A NL 6800820A NL 6800820 A NL6800820 A NL 6800820A NL 6800820 A NL6800820 A NL 6800820A NL 6800820 A NL6800820 A NL 6800820A
- Authority
- NL
- Netherlands
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
- F26B17/16—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials passing down a heated surface, e.g. fluid-heated closed ducts or other heating elements in contact with the moving stack of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/06—Evaporators with vertical tubes
- B01D1/065—Evaporators with vertical tubes by film evaporating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/06—Evaporators with vertical tubes
- B01D1/10—Evaporators with vertical tubes with long tubes, e.g. Kestner evaporators
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
- C05C9/005—Post-treatment
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- 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
- C07C273/14—Separation; Purification; Stabilisation; Use of additives
- C07C273/16—Separation; Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US61057267A | 1967-01-20 | 1967-01-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
NL6800820A true NL6800820A (de) | 1968-07-22 |
NL141179B NL141179B (nl) | 1974-02-15 |
Family
ID=24445564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL686800820A NL141179B (nl) | 1967-01-20 | 1968-01-18 | Werkwijze en inrichting voor de bereiding van ureum. |
Country Status (5)
Country | Link |
---|---|
US (1) | US3491821A (de) |
DE (1) | DE1668856C3 (de) |
FR (1) | FR1553248A (de) |
GB (1) | GB1193221A (de) |
NL (1) | NL141179B (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1239193A (de) * | 1969-02-19 | 1971-07-14 | ||
JPS55145659A (en) * | 1979-05-01 | 1980-11-13 | Toyo Eng Corp | Concentration of aqueous solution of urea |
JPS5826909B2 (ja) * | 1979-09-14 | 1983-06-06 | 東洋エンジニアリング株式会社 | 尿素水溶液の濃縮方法 |
IT1163795B (it) * | 1983-07-18 | 1987-04-08 | Montedison Spa | Apparecchio per lo strippaggio dell'ammoniaca dalle soluzioni provenienti dalla sintesi dell'urea |
DE3512451A1 (de) * | 1985-04-04 | 1986-10-16 | GEA Wiegand GmbH, 7505 Ettlingen | Verfahren zum erwaermen einer fluessigkeit und vorrichtung zur durchfuehrung des verfahrens |
IT1240675B (it) * | 1990-04-24 | 1993-12-17 | Snam Progetti | Procedimento per la concentrazione sotto vuoto di soluzioni di urea |
FR2758276B1 (fr) * | 1997-01-10 | 1999-10-29 | Favier | Dispositif de separation d'au moins un produit dissous dans un fluide et installation comprenant un tel dispositif |
US7194789B2 (en) * | 2003-12-23 | 2007-03-27 | Kimberly-Clark Worldwide, Inc. | Abraded nonwoven composite fabrics |
US9112255B1 (en) * | 2012-03-13 | 2015-08-18 | L-3 Communications Corp. | Radio frequency comparator waveguide system |
EP3452212B1 (de) * | 2016-05-03 | 2020-02-12 | Stamicarbon B.V. | Herstellung von harnstoff mit kontrolliertem biuret |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2933527A (en) * | 1956-04-13 | 1960-04-19 | Lonza Electric & Chem Works | Process for the manufacture of urea in granular form |
US3147174A (en) * | 1959-10-14 | 1964-09-01 | Chemical Construction Corp | Low moisture urea melt |
US3087533A (en) * | 1960-01-06 | 1963-04-30 | Whitlock Mfg Company | Drying apparatus and method |
-
1968
- 1968-01-18 NL NL686800820A patent/NL141179B/xx not_active IP Right Cessation
- 1968-01-19 DE DE1668856A patent/DE1668856C3/de not_active Expired
- 1968-01-19 FR FR1553248D patent/FR1553248A/fr not_active Expired
- 1968-01-22 GB GB3236/68A patent/GB1193221A/en not_active Expired
-
1969
- 1969-02-03 US US800809A patent/US3491821A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE1668856B2 (de) | 1973-09-27 |
DE1920717B2 (de) | 1975-10-02 |
FR1553248A (de) | 1969-01-10 |
US3491821A (en) | 1970-01-27 |
DE1920717A1 (de) | 1970-09-17 |
NL141179B (nl) | 1974-02-15 |
DE1668856C3 (de) | 1974-05-02 |
GB1193221A (en) | 1970-05-28 |
DE1668856A1 (de) | 1972-04-13 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
V1 | Lapsed because of non-payment of the annual fee | ||
NL80 | Abbreviated name of patent owner mentioned of already nullified patent |
Owner name: AMETEK |