铬鞣

In this paper,the various methods of reclaiming chrome and collagen from chrome effluent and chrome-tanned leather sc...

本文就此问题着重介绍了如何从铬鞣废液及铬鞣革屑中回收铬及皮胶原，并将其重新用于皮革工业。

A series of experiments of chrome tanning of leather making using CO 2 Supercritical fluid technique were conducted.

利用自行设计制造的CO2 超临界流体装置实施铬鞣操作进行了探索性研究，运用正交实验法找到了在SCF -CO2 条件下实施铬鞣的最佳工艺条件为：浴温 40℃，压力 1 2MPa，时间 2 。5h ，粉状铬粉剂用量 6 %。

Chrome effluent ; chrome-tanned leather scraps ; recovery ; reuse

铬鞣废液；铬鞣革屑；回收；再利用

With only 2% chromium powder, the nano-composite tanning agent can thicken the leather by 124.5%, the shrinkage temperature reaches to 95 DEG C.; compared with a chrome tanned leather, a leather tanned by the nano-composite tanning agent has a tensile strength, peeling strength and elongation at break improved by 51.8%, 8.2% and 13.3% respectively, has no obvious stratification or sedimentation during over 12 months of storage period.

所述复合鞣剂只需配入2％的铬粉，就可使皮革增厚高达124.5％，收缩温度达到95℃以上；其鞣革相较于铬鞣革，革的抗张、撕裂强度分别提高了51.8％和8.2％，断裂伸长率也提高了13.3％，存放期12个月以上无明显分层和沉淀。

The verifying investigation of the mechanismof traditional chrome tanning was carried out in this paper in order to understandbetter the mechanism of chrome tanning in supercritical carbon dioxide fluid.

为了更好地了解在二氧化碳超临界流体下铬鞣机理，采用对比实验法对常规铬鞣的基本原理进行了印证性研究。

Collagen has been treated with DHTPA and then tanned with chromium complexes,and the effect of DHTPA on chrome tanning properties has been investigated by determining the chrome absorptivity and fixation as well as the physical properties of the crust.

用DHTPA对胶原改性后进行铬鞣，通过铬的吸收率、铬的固定率、坯革物理机械性能等指标的测定，研究了DHTPA对胶原铬鞣性能的影响。

It included enzyme unhairing,sodium hydroxide based fibre opening and pickle and basification-free chrome tanning process.

介绍了一种三步铬鞣山羊面革的加工方法，即：酶脱毛，NaOH打开皮纤维和无浸酸、无提碱铬鞣。

Through the comparison, the method of directive recycling use of the used chrome liquor is more suitable than the one of chrome recovery from the used chrome liquor for tannery.

对目前国内外铬鞣废液的回收利用研究及方法进行了综述与比较，铬鞣废液的直接循环使用较回收铬的方法更易在制革厂实

Tanning method of classification according to chrome-tanned leather, vegetable tanning leather, aldehyde tanning and the combination of tanning.

按鞣制方法分类有铬鞣革、植鞣革、醛鞣革和结合鞣革。

Through orthogonal test, chrome-free tanning technology of goatskin shoe upper leather with chrome-free tanning agents such as modified glutaraldehyde,modified vegetable tannin and syntans was studied.

采用改性戊二醛、改性栲胶、合成鞣剂等无铬鞣剂，通过正交试验，优化出了多种鞣剂结合鞣制山羊鞋面革的无铬鞣制工艺。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。