NL144105B - Versterkende dubbele balansmodulator met vier transistoren. - Google Patents

Versterkende dubbele balansmodulator met vier transistoren.

Info

Publication number
NL144105B
NL144105B NL676703846A NL144105DA NL144105B NL 144105 B NL144105 B NL 144105B NL 676703846 A NL676703846 A NL 676703846A NL 144105D A NL144105D A NL 144105DA NL 144105 B NL144105 B NL 144105B
Authority
NL
Netherlands
Prior art keywords
transistors
double balance
balance modulator
reinforcing double
reinforcing
Prior art date
Application number
NL676703846A
Other languages
English (en)
Original Assignee
Siemens Ag
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.)
Publication of NL144105B publication Critical patent/NL144105B/nl

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85—Chromium, molybdenum or tungsten
    • B01J23/86—Chromium
    • B01J23/866—Nickel and chromium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation
    • B01J37/0205—Impregnation in several steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08—Heat treatment
    • B01J37/082—Decomposition and pyrolysis
    • B01J37/088—Decomposition of a metal salt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Catalysts (AREA)
NL676703846A 1948-12-29 Versterkende dubbele balansmodulator met vier transistoren. NL144105B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2592016X 1948-12-29

Publications (1)

Publication Number Publication Date
NL144105B true NL144105B (nl)

Family

ID=19874918

Family Applications (1)

Application Number Title Priority Date Filing Date
NL676703846A NL144105B (nl) 1948-12-29 Versterkende dubbele balansmodulator met vier transistoren.

Country Status (2)

Country Link
US (1) US2592016A (nl)
NL (1) NL144105B (nl)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2871200A (en) * 1955-08-22 1959-01-27 Union Oil Co Hydrocarbon conversion catalysts
US2741602A (en) * 1952-04-04 1956-04-10 Gulf Research Development Co Process for preparing impregnated catalysts
DE963980C (de) * 1953-05-19 1957-05-16 Standard Oil Dev Co Verfahren zur Herstellung von hochaktiven Reformierungskatalysatoren
US2773844A (en) * 1953-06-12 1956-12-11 Shell Dev Method for making supported silver catalysts
DE1038540B (de) * 1953-08-19 1958-09-11 Peter Spence & Sons Ltd Verfahren zur Herstellung von Kobaltoxyd-Molybdaenoxyd-Traegerkatalysatoren
DE1074014B (de) * 1955-12-10 1960-01-28 Badische Anilin & Soda Fabrik Aktiengesellschaft Ludw igshaf en/Rhem Verfahren zur Herstellung eines aktiven formfesten Tonerde Trager Katalysators
NL107940C (nl) * 1956-02-03 1900-01-01
US2949429A (en) * 1956-04-06 1960-08-16 Phillips Petroleum Co Process for preparing improved nickel oxide polymerization catalysts
DE1134468B (de) * 1956-05-28 1962-08-09 British Petroleum Co Verfahren zur Verbesserung der Farbe und Oxydationsstabilitaet von Schmieroelen
FR1195544A (fr) * 1958-05-02 1959-11-18 British Petroleum Co Procédé de traitement d'huiles minérales lubrifiantes par hydrogénation ménagée et catalyseur pour ce procédé
US2976232A (en) * 1959-01-19 1961-03-21 Exxon Research Engineering Co Platinum-alumina-ceria hydroforming catalyst and process
US3368982A (en) * 1964-03-09 1968-02-13 United Eng & Constructors Inc Nickel and nickel oxide catalysts on a nickel spinel base
CN101518729B (zh) * 2008-02-26 2013-04-24 拜耳材料科技(中国)有限公司 用于氨基甲酸烷基酯合成的催化剂及其制备方法和用途

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2242627A (en) * 1938-11-12 1941-05-20 Phillips Petroleum Co Hydrogenation catalyst and process
US2400025A (en) * 1942-05-09 1946-05-07 Standard Oil Dev Co Treatment of catalyst
US2422372A (en) * 1942-07-27 1947-06-17 Shell Dev Preparation of an alumina supported molybdenum oxide catalyst
US2470092A (en) * 1944-10-09 1949-05-17 Koppers Co Inc Dehydrogenation process
US2474440A (en) * 1947-03-03 1949-06-28 Shell Dev Process for the production of a lithium-aluminum compound as a base for a conversioncatalyst
US2508014A (en) * 1947-05-16 1950-05-16 Shell Dev Catalytic reforming of gasoline

Also Published As

Publication number Publication date
US2592016A (en) 1952-04-08

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