DE924748C - Process for the production of spherical or lenticular abrasion-resistant catalysts - Google Patents

Process for the production of spherical or lenticular abrasion-resistant catalysts

Info

Publication number
DE924748C
DE924748C DED14018A DED0014018A DE924748C DE 924748 C DE924748 C DE 924748C DE D14018 A DED14018 A DE D14018A DE D0014018 A DED0014018 A DE D0014018A DE 924748 C DE924748 C DE 924748C
Authority
DE
Germany
Prior art keywords
spherical
production
lenticular
abrasion
resistant catalysts
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
Application number
DED14018A
Other languages
German (de)
Inventor
Karl Dr Fischer
Ernst Streckebach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wintershall Dea Deutschland AG
Original Assignee
Deutsche Erdoel 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.)
Filing date
Publication date
Priority claimed from DED11378A external-priority patent/DE922530C/en
Application filed by Deutsche Erdoel AG filed Critical Deutsche Erdoel AG
Priority to DED14018A priority Critical patent/DE924748C/en
Application granted granted Critical
Publication of DE924748C publication Critical patent/DE924748C/en
Expired legal-status Critical Current

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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • 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
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • 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
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
    • B01J2/06—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a liquid medium
    • B01J2/08—Gelation of a colloidal solution
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B61/00—Other general methods

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Catalysts (AREA)

Description

Verfahren zur Herstellung von sphärischen oder linsenförmigen abriebfesten Katalysatoren Zusatz zum Patent 922 530 In dem Patent 922 530 wird ein Verfahren zur Herstellung sphärischer Körper mit katalytischer Wirkung beschrieben. Hierbei werden Suspensionen fester Stoffe, z. B. Kaolin, Ton oder ausgefällte Gele, mit in Wasser gelöstem oder gequollenem Alginat gemischt und in das Alginat fällende Lösungen oder in eine Gas- oder Dampfatmosphäre getropft und die verfestigten kugelförmigen Tropfen gewaschen, getrocknet und geglüht.Process for the production of spherical or lenticular wear-resistant catalysts Addition to patent 922 530 Patent 922 530 describes a process for the production of spherical bodies with a catalytic effect. Here, suspensions of solid substances, such. B. kaolin, clay or precipitated gels, mixed with dissolved or swollen alginate in water and dropped into the alginate precipitating solutions or in a gas or steam atmosphere and the solidified spherical drops washed, dried and calcined.

Bei der weiteren Durcharbeitung dieses Verfahrens hat es sich als günstig erwiesen, statt Suspensionen fester Stoffe Sole bzw. kolloide Lösungen anzuwenden, beispielsweise Sole von Erdalkalisilikaten, Eine glatteDurchführung dieses Verfahrens ergibt sich, wenn das Sol vor dem Zusatz des Alginats mittels verdünnter Säuren auf einen zwischen q. und 7 liegenden pH-Wert eingestellt wird. Die in dem Fä.llungsbad ausgefällten Kugeln werden mittels geeigneter mechanischer Vorrichtungen aus dem Fällungsbad ausgetragen, derart, daß die Verweilzeit zwischen wenigen Sekunden und mehreren Stunden liegt. Die Behandlungszeiten hängen ab von dem Verwendungszweck des Katalysators, gegebenenfalls auch von der Imprägnierung, die mit dem Fällungsbad erreicht werden soll, und von anderen Verfahrensbedingungen. Gegebenenfalls kann es zweckmäßig sein, eine Nachbehandlung, entsprechend dem Verfahren des Hauptpatents, vorzunehmen. Beispielsweise kann auch eine Nachbehandlung mit Ammoniak am Platze sein.In working through this procedure further, it has proven to be Proven to use brine or colloidal solutions instead of suspensions of solid substances, e.g. brine of alkaline earth silicates, a smooth implementation of this process arises when the sol is diluted with dilute acids before the alginate is added on one between q. and pH 7 is adjusted. The one in the precipitation bath Precipitated spheres are removed from the by means of suitable mechanical devices Discharged precipitation bath, such that the residence time between a few seconds and several hours. The treatment times depend on the intended use of the catalyst, optionally also of the impregnation with the precipitation bath to be achieved and other process conditions. If necessary, can it expedient be a follow-up treatment, according to the procedure of the main patent. For example, a follow-up treatment with Ammonia be in place.

Beispiel zoo Volumteile einer aus 5oo cm3 handelsüblichem Wasserglas in 2ooo cm3 Wasser und 6o cm3 einer Lösung- von Aluminiumchlorid, die im Liter 6oo g A1 C13 * 6 H2 O enthielt, bestehenden Lösung wurden durch Zusatz von verdünnter Salzsäure auf einen pH-Wert von 4,5 eingestellt. Diese Lösung, -die in etwa 3 Stunden zu einem Gel erstarrte, wurde mit 25 Volumteilen einer 5°/oigen Lösung von Natriumalginat gemischt und aus einem Trichter in eine 5o/aige Aluminiumchlorid-Lösung getropft. Die verfestigten Kugeln wurden nach etwa 5 Minuten aus dem Fällungsbad herausgenommen und nach frühestens 3 Stunden gewaschen, getrocknet und geglüht.Example zoo parts by volume of a 5oo cm3 standard water glass in 2ooo cm3 of water and 6o cm3 of a solution of aluminum chloride, which is 6oo g A1 C13 * 6 H2 O containing existing solution were diluted by adding Hydrochloric acid adjusted to a pH of 4.5. This solution, -done in about 3 hours solidified to a gel, was with 25 parts by volume of a 5% solution of sodium alginate mixed and dripped from a funnel into a 50 / aige aluminum chloride solution. The solidified spheres were removed from the precipitation bath after about 5 minutes and washed, dried and annealed after 3 hours at the earliest.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von sphärischen oder linsenförmigen, abriebfesten Katalysatoren nach Patent 922 530, dadurch gekennzeichnet, daB an Stelle einer Suspension ein Sol verwendet wird, das vor dem Zusatz des Alginsäurederivats auf einen pH-Wert zwischen 4 bis 7 eingestellt wird. Angezogene Druckschriften: USA.-Patentschriften Nr. 2 463 467, 2 492 808, 2 505 895, 2 5o6316; britische Patentschrift Nr. 576 058; französische Patentschrift Nr. 922 694.Claim: Process for the production of spherical or lenticular, abrasion-resistant catalysts according to Patent 922 530, characterized in that instead of a suspension, a sol is used which is adjusted to a pH between 4 and 7 before the alginic acid derivative is added. Energized publications: USA. Patent Nos 2,463,467, 2,492,808, 2 5 0 5 895 2 5o6316;. British Patent No. 576 058; French patent specification No. 922 694.
DED14018A 1952-01-18 1953-01-04 Process for the production of spherical or lenticular abrasion-resistant catalysts Expired DE924748C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED14018A DE924748C (en) 1952-01-18 1953-01-04 Process for the production of spherical or lenticular abrasion-resistant catalysts

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DED11378A DE922530C (en) 1952-01-18 1952-01-18 Process for the production of spherical or lens-shaped abrasion-resistant bodies for catalytic purposes
DED14018A DE924748C (en) 1952-01-18 1953-01-04 Process for the production of spherical or lenticular abrasion-resistant catalysts

Publications (1)

Publication Number Publication Date
DE924748C true DE924748C (en) 1955-03-07

Family

ID=34227385

Family Applications (1)

Application Number Title Priority Date Filing Date
DED14018A Expired DE924748C (en) 1952-01-18 1953-01-04 Process for the production of spherical or lenticular abrasion-resistant catalysts

Country Status (1)

Country Link
DE (1) DE924748C (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB576058A (en) * 1942-10-09 1946-03-18 Socony Vacuum Oil Co Inc Improvements in gel pellets
FR922694A (en) * 1945-05-14 1947-06-16 Standard Oil Dev Co Calalysts
US2463467A (en) * 1945-09-08 1949-03-01 Socony Vacuum Oil Co Inc Preparation of spheroidal aerogel pellets
US2492808A (en) * 1947-03-27 1949-12-27 Socony Vacuum Oil Co Inc Gelling viscous sol particles in aqueous ammonia
US2506316A (en) * 1945-05-14 1950-05-02 Standard Oil Dev Co Forming hydrogel beads by spray contact
US2505895A (en) * 1944-07-22 1950-05-02 Standard Oil Co Catalyst preparation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB576058A (en) * 1942-10-09 1946-03-18 Socony Vacuum Oil Co Inc Improvements in gel pellets
US2505895A (en) * 1944-07-22 1950-05-02 Standard Oil Co Catalyst preparation
FR922694A (en) * 1945-05-14 1947-06-16 Standard Oil Dev Co Calalysts
US2506316A (en) * 1945-05-14 1950-05-02 Standard Oil Dev Co Forming hydrogel beads by spray contact
US2463467A (en) * 1945-09-08 1949-03-01 Socony Vacuum Oil Co Inc Preparation of spheroidal aerogel pellets
US2492808A (en) * 1947-03-27 1949-12-27 Socony Vacuum Oil Co Inc Gelling viscous sol particles in aqueous ammonia

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