Liu, Xinhua; Wang, Youyou; Wang, Xuechuan; Han, Tengfei; Wang, Wanni; Jiang, Huie published the artcile< A salt-free pickling and chrome-free tanning technology: a sustainable approach for cleaner leather manufacturing>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is salt chrome free pickling tanning clean leather manufacture.
Tannery effluents contain harmful pollutants, such as chromium, total dissolved solids, and neutral salts (chlorides), and hence researchers have focused on eco-benign pickling and tanning processes. Here, a sustainable approach employs a salt-free pickling and chrome-free tanning process for cleaner leather manufacturing Pretreatment with 8% epoxy-terminated hyperbranched poly(amine-ester) (abbreviated as EHBP) before pickling controlled the swelling of the skin in the pickling process, in the absence of conventional neutral salts. Subsequent tanning preferably with a 6% aluminum tanning agent (abbreviated as AL) improved the hydrothermal stability of the resultant crust. It also promoted the subsequent dyeing or fatliquoring in a wet finishing process, as well as ameliorated the yellowing resistance and chem. stability of the tanned leather. This study showed that without compromising on the quality of finished leather, EHBP could ensure a salt-free pickling and chrome-free tanning process and prevent the pollution of tannery effluents (Cl- and Cr3+) with a promising development for large-scale green production
Green Chemistry published new progress about Absorption (aluminum ions). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics