Industrial process for the manufacture of alkyl xanthogen format

Details Industrial process for the manufacture of alkyl xanthogen format Industrial process for the manufacture of alkyl xanthogen format

1982-06-01

1986-08-12

Jiles, Henry R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Esters having the thiocarboxylate group, -cx-, wherein the...

C07C15402

Patent

active

046055185

ABSTRACT:
A batch process including a circulating reactor and an agitated reactor for the production of dialkyl xanthogen formates, including means to increase yields of products, inhibiting chloroformate hydrolysis, suppress production of xanthic anhydride as a byproduct, and generally control product/byproduct yields based on intended use. Certain product mixtures are particularly useful as flotation reagents, specifically collectors in the flotation of molybdenum-bearing copper ores, where molybdenum recovery has been increased by more than 10% without adverse effects on copper recovery.

REFERENCES:
Cambron, Canadian Journal of Research, vol. 2, 1930, p. 341f.
Felumb, Bull. Soc. Chim. France, 1957, pp. 890-894.
Gurvich, et al., Zh. Prikl. Khim., 39,(2) p. 351 (1966).
Reid, Journal fur Praktische Chemie, Band 15, vol. 123, 1877.
Holmberg, J. f. Prakt. Chimie, (2) Band 71, 1905, p. 264f.
J. Welde, Journ. f. Prakt. Chemie (2), Band 15, p. 43 (1887).

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