Process for recovering copper and noble metals from organic resi

Details Process for recovering copper and noble metals from organic resi Process for recovering copper and noble metals from organic resi

1974-04-16

1976-03-30

Vertiz, Oscar R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Platinum group metal

423 27, 252413, 252416, 260604AC, C01G 5500, C01G 300, B01D 1506

Patent

active

039475433

ABSTRACT:
A process for recovering copper and noble metals from organic precipitates, residues and polymerizates which involves subjecting the organic components to a slow, low-temperature carbonization process without the use of any additional heat supplying elements. The metals remain in the ash in the form of salts. Normally the metals in the resulting solution are not separated out but can be recycled directly to the process as active components. No additional components need be added. Typically, the burning process takes place with a conversion rate of approximately one percent per hour. Preferably the burning process takes place at a temperature between 300.degree. and 500.degree.C. The ash is obtained in a form in which it almost completely dissolves in suitable acids, preferably hydrochloric acid. Preferably the process is used to burn the copper and palladium chloride containing residues obtained from the process of the oxidation of ethylene to form acetaldehyde.

REFERENCES:
patent: 1925204 (1933-09-01), Reich
patent: 2632737 (1953-03-01), Stehman
patent: 3154586 (1964-10-01), Bander et al.
patent: 3461157 (1969-08-01), Olivier et al.
patent: 3525674 (1970-08-01), Barnekey

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