NL143873B - Werkwijze om ammoniak en ureum te bereiden. - Google Patents
Werkwijze om ammoniak en ureum te bereiden.Info
- Publication number
- NL143873B NL143873B NL666608287A NL143873DA NL143873B NL 143873 B NL143873 B NL 143873B NL 666608287 A NL666608287 A NL 666608287A NL 143873D A NL143873D A NL 143873DA NL 143873 B NL143873 B NL 143873B
- Authority
- NL
- Netherlands
- Prior art keywords
- urea
- procedure
- preparing ammonia
- ammonia
- preparing
- Prior art date
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title 1
- 229910021529 ammonia Inorganic materials 0.000 title 1
- 239000004202 carbamide Substances 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/16—Networks for phase shifting
- H03H11/22—Networks for phase shifting providing two or more phase shifted output signals, e.g. n-phase output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is AC
- G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is AC using discharge tubes or semiconductor devices as final control devices
- G05F1/42—Regulating voltage or current wherein the variable actually regulated by the final control device is AC using discharge tubes or semiconductor devices as final control devices discharge tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Control Of Electrical Variables (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR892346X | 1948-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL143873B true NL143873B (nl) |
Family
ID=9389553
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL71920D NL71920C (enrdf_load_stackoverflow) | 1948-04-13 | ||
| NL666608287A NL143873B (nl) | 1948-04-13 | Werkwijze om ammoniak en ureum te bereiden. |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL71920D NL71920C (enrdf_load_stackoverflow) | 1948-04-13 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE892346C (enrdf_load_stackoverflow) |
| FR (1) | FR965486A (enrdf_load_stackoverflow) |
| NL (2) | NL143873B (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1107814B (de) * | 1959-09-22 | 1961-05-31 | Siemens Ag | Schaltungsanordnung zur exakten 90íÒ-Phasendrehung einer Wechselspannung |
-
0
- NL NL71920D patent/NL71920C/xx active
- FR FR965486D patent/FR965486A/fr not_active Expired
- NL NL666608287A patent/NL143873B/xx unknown
-
1950
- 1950-08-06 DE DES18410A patent/DE892346C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL71920C (enrdf_load_stackoverflow) | |
| DE892346C (de) | 1953-10-05 |
| FR965486A (enrdf_load_stackoverflow) | 1950-09-13 |
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