栲胶（tannin extract）是由富含单宁的植物原料经水浸提和浓缩等步骤加工制得的化工产品。通常为棕黄色至棕褐色，粉状或块状。主要用于鞣皮，制革业上称为植物鞣剂。此外还用作选矿抑制剂、锅炉水处理剂、钻井泥浆稀释剂和金属表面防蚀剂，凝缩类栲胶也作木工胶粘剂。
... supercritical fluid extraction 超临界流体萃取 tanning extracts 栲胶 timber extraction 木材采集 ...
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落叶松栲胶 [林] larch extract
栗木栲胶 chestnut wood extract ; [林] chestnut extract ; Chestnut Extract Tannin
木麻黄栲胶 beefwood extract
橡碗栲胶 valonea extract
栲胶脱硫剂 Tannin Extract Desulfurization Agent ; Desulphurization Agent Of Tanning Extracts
栎栲胶 oak extract
植物丹宁栲胶 vegetable tanning extract
杨梅栲胶 tanning agent myrica ; myrica extract
坚木栲胶 [林] quebracho extract
研究了毛杨梅栲胶的磺甲基化改性方法。
The method of sulfomethylation modification of bayberry tannin extract was investigated.
我国盛产栲胶，开发此法的前景是光明的。
As China abounds in the tannin extract, so it is of bright prospect to develop this process.
用胶体滴定法测定了橡椀栲胶中的单宁含量。
Method of collidal titration was adopted to determine tannin content of valonea tannin extract.
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