| 摘要 |
Tannery waste, such as shoulder and belly splits and glue stock, is delimed, pickled in a salt solution containing a strong acid until it loses some of its initial water content and absorbs acid, disintegrated in the presence of excess water whereby it swells to several times it original weight, and then dewatered by contact with a solution of a soluble chloride or sulfate. The partly dewatered material may then be further processed to collagen fibers by tanning and other conventional procedures.
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