Process for demineralization of crustacea shells

Details Process for demineralization of crustacea shells Process for demineralization of crustacea shells

1976-11-15

1978-01-03

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkaline earth metal

423166, 423173, 536 20, C01F 1146

Patent

active

040667359

ABSTRACT:
This disclosure is concerned with the demineralization of crustacea shells and the like, before or after protein removal therefrom, with sulfurous acid, thus to convert the calcium carbonate of the shell to calcium bisulfite solution which may be separated from the solid residual shell, and regenerating sulfurous acid from the said solution for reuse in the process.

REFERENCES:
patent: 1694231 (1928-12-01), Richter
patent: 1959448 (1934-05-01), Staufer et al.
patent: 2113198 (1938-04-01), Nonhebel et al.
patent: 2676090 (1954-04-01), Johnstone
patent: 2862789 (1958-12-01), Burgess
patent: 3025131 (1962-03-01), Lerner
patent: 3533940 (1970-10-01), Peniston et al.
patent: 3556722 (1971-01-01), Owaki
patent: 3681020 (1972-08-01), Shah

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