Content:
Leather industry is one of many traditional, characteristic and ascendant industries. During the development of Leather industry, the problem of a certain the waste of resources and environmental pollution has been yielded. The waste tallow is one of the problems should be solved quickly. Based on the problem of the waste of resources and environmental pollution form the waste tallow during the leather
industry, act waste beef tallow from tannery as raw material, detection of its physical and chemical properties, de-colorization, deodorization, amidation, esterification and sulfitation were done successively.
Results suggested that the acid value and the saponification value of the waste beef tallow is 45mgKOH/g, 207mgKOH/g respectively. When 6% activated clay was used after 10% hydrogen peroxide, it has the best effect in decolorization and deodorization. When catalyzed by 1% sodium formate, n（ethanolamine）：n （waste beef tallow）is 4:1，the reaction temperature was 130~140oC and time was 2hrs, the acid value and hydroxyl value of the treated beef tallow is 15~30mgKOH/g, about 280mgKOH/g respectively. When the optimum dosage of sodium sulfite is 20%, the fatliquor obtained light yellow and good stability. The sheepskin garment leather fatliquored by this fatliquor is very soft.
Take-Away:
Modification of a sulfited fatliquor based on waste beef tallow.
Application of this sulfited fatliquor.
Other methods of modification of waste beef tallow.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:34257 |
| Date | 26 June 2019 |
| Creators | Ru-Hui, Luo, Wei-Xiao, Wu, De-Yan, Cehn, Jian-Xun, Luo |
| Contributors | International Union of Leather Technologists and Chemists Societies |
| Publisher | Verein für Gerberei-Chemie und -Technik e. V., Forschungsinstitut für Leder und Kunststoffbahnen (FILK) gGmbH |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, doc-type:conferenceObject, info:eu-repo/semantics/conferenceObject, doc-type:Text |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | urn:nbn:de:bsz:14-qucosa2-340872, qucosa:34087 |
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