C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C09H—PREPARATION OF GLUE OR GELATINE
C09H1/00—Pretreatment of collagen-containing raw materials for the manufacture of glue
C09H1/04—Pretreatment of collagen-containing raw materials for the manufacture of glue of hides, hoofs, or leather scrap
C—CHEMISTRY; METALLURGY
C14—SKINS; HIDES; PELTS; LEATHER
C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
C14C3/00—Tanning; Compositions for tanning
C14C3/32—Recovering tanning agents from leather
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
Y02W30/00—Technologies for solid waste management
Y02W30/50—Reuse, recycling or recovery technologies
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Chemical & Material Sciences
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Organic Chemistry
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Chemical Kinetics & Catalysis
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General Chemical & Material Sciences
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Treatment And Processing Of Natural Fur Or Leather
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Procede pour l'extraction de proteines et de chrome de dechets de peaux tannees au chrome et produits, proteine et sulfate de chrome obtenus par ce procede
Procede de traitement de solutions proteiques contenant des pigments tels que groupements heminiques ou chlorophylles en vue de leur decoloration et produits obtenus
Procédé de traitement des déchets non tannés de l'industrie des peaux et cuirs, en vue de diminuer leur teneur en eau, d'assurer leur conservation, et de faciliter leur manutention et leur évolution ultérieures