Process for the production of catalytic gas permeable nets and p

Details Process for the production of catalytic gas permeable nets and p Process for the production of catalytic gas permeable nets and p

1992-03-13

1993-12-07

Shine, W. J.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Oxygen containing

423392, 502326, 502331, 502339, B01J 2340, B01J 2372, B01J 2389, C01B 2126

Patent

active

052681572

ABSTRACT:
Wires of platinum containing 4 to 12% rhodium or 4 to 12% of palladium and rhodium (4 to 12% being in reference to the sum of palladium and rhodium and not the percent values for each individually) and wires of palladium containing 2 to 15% nickel or 2 to 15% copper or 2 to 15% of nickel and copper (2 to 15% being in reference to the sum of nickel and copper) and having a diameter of 50 to 120 .mu.m, a tensile strength of 900 to 1050 N/mm.sup.2 and an elastic limit of 0.5 to 3% are used for the knitting of round nets for use as catalysts in the oxidation of ammonia and as recovery nets for platinum metals. A flat knitting machine with a gauge of 3.63 to 1.81 mm is also used whereby the loop length is 2 to 6 mm and wherein the loop or width gauge corresponds with the knitting machine gauge so as to provide a loop width of 1.81 to 3.63 mm.

REFERENCES:
patent: 1927963 (1933-09-01), Taylor
patent: 3189563 (1965-06-01), Hauel
patent: 3881877 (1975-05-01), Hunter
German language, DIN 62 125, Aug. 1985, pp. 1, 3 and 5 with translation.
German language technical description entitled "Knitting Technique", pp. 25-27, date unknown (translation included).
German language technical article entitled "Knitting Technique", pp. 3, 18 and 19, date unknown (translation included).

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