ES380656A1 - A method of preparing cogelified, spherical chrome-alumin particles. (Machine-translation by Google Translate, not legally binding) - Google Patents

A method of preparing cogelified, spherical chrome-alumin particles. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES380656A1
ES380656A1 ES380656A ES380656A ES380656A1 ES 380656 A1 ES380656 A1 ES 380656A1 ES 380656 A ES380656 A ES 380656A ES 380656 A ES380656 A ES 380656A ES 380656 A1 ES380656 A1 ES 380656A1
Authority
ES
Spain
Prior art keywords
chromium
particles
hydrochloric acid
translation
legally binding
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
ES380656A
Other languages
Spanish (es)
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.)
Universal Oil Products Co
Original Assignee
Universal Oil Products Co
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
Application filed by Universal Oil Products Co filed Critical Universal Oil Products Co
Publication of ES380656A1 publication Critical patent/ES380656A1/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

A method of preparing spherical, cogelled chromium-alumina oxide particles comprising: (a) dissolving chromium trioxide in hydrochloric acid in an amount corresponding to about 0.2 to about 2 moles of hydrochloric acid per mole of hydroxide trioxide chromium and then treating the solution with a reducing agent and forming a chromium oxide sol comprising chromium in the +3 valence state, (b) forming an alumina sol, digesting aluminum in an acid chloride chosen from the group which It consists of hydrochloric acid and aluminum chloride in aqueous solution, (c) combining the aforementioned chromium oxide and alumina sols together with an ammonia precursor that can decompose into ammonia with the type and temperature and disperse the resulting mixture containing the sun in droplet form in a hot oil bath, (d) aging the resulting cogellated spheres to an elevated temperature by decomposing the precursor of Residual ammonia contained therein, (e) thereafter wash, dry and calcine the aged spherical particles. (Machine-translation by Google Translate, not legally binding)
ES380656A 1969-06-12 1970-06-11 A method of preparing cogelified, spherical chrome-alumin particles. (Machine-translation by Google Translate, not legally binding) Expired ES380656A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83286269A 1969-06-12 1969-06-12

Publications (1)

Publication Number Publication Date
ES380656A1 true ES380656A1 (en) 1972-10-16

Family

ID=25262802

Family Applications (1)

Application Number Title Priority Date Filing Date
ES380656A Expired ES380656A1 (en) 1969-06-12 1970-06-11 A method of preparing cogelified, spherical chrome-alumin particles. (Machine-translation by Google Translate, not legally binding)

Country Status (10)

Country Link
BE (1) BE751665A (en)
CA (1) CA919153A (en)
DK (1) DK123571B (en)
ES (1) ES380656A1 (en)
FR (1) FR2050001A5 (en)
GB (1) GB1302223A (en)
LU (1) LU61112A1 (en)
NL (1) NL7008556A (en)
NO (1) NO125521B (en)
SE (1) SE363587B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116959B (en) * 1982-03-19 1985-09-04 Atomic Energy Authority Uk Materials suitable for use as thermal spraying powders
US4548832A (en) * 1982-03-19 1985-10-22 United Kingdom Atomic Energy Authority Materials

Also Published As

Publication number Publication date
DK123571B (en) 1972-07-10
GB1302223A (en) 1973-01-04
NL7008556A (en) 1970-12-15
BE751665A (en) 1970-11-16
DE2027787A1 (en) 1971-11-11
LU61112A1 (en) 1970-08-12
FR2050001A5 (en) 1971-03-26
DE2027787B2 (en) 1975-10-23
CA919153A (en) 1973-01-16
SE363587B (en) 1974-01-28
NO125521B (en) 1972-09-25

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