水滑石

In the preparation method, the raw materials of houghite compound, the alumina, the silica and the molecular sieve are mixed uniformly; then an obtained mixture is molded; the compound is dried and calcined.

其制备方法为：将原料水滑石类化合物、氧化铝、氧化硅、分子筛混合均匀；然后将所得混合物进行成型；将上述化合物进行干燥焙烧。

The adopted preparation method comprises the following steps: paper fibre or porous organism is used as a hard template; CoFeFe-LDH is synthesized in the surface and holes of the hard template and roasted to prepare the magnetic cobalt iron ferrite; as the function for fixing the houghite position is produced by the obstruction and adsorption of the hard template, the occurrence of the sintering phenomenon is greatly avoided, thereby preparing the magnetic cobalt iron ferrite with a consistent shape and even granularity.

所采用的制备方法是以纸纤维或多空有机物为硬模板、在硬模板表面及孔内合成Co 2 Fe 2 Fe 3 -LDH，再经焙烧得到磁性钴铁铁氧体，由于硬模板的阻隔和吸附而产生的水滑石位置固定作用，极大地避免了烧结现象发生；从而得到形状一致、粒度均匀的钴铁铁氧体。

The preparation method comprises the steps as follows: houghite ZnAl-NO3-LDHs is taken as the precursor, ion exchange method is adopted to insert the 2- naphthylamine-1, 5-disulfonic acid to the interlayer of ZnAl-NO3-LDHs, thereby assembling and acquiring the ZnAl-NADA-LDHs of good crystalling phase structure and splendid performance.

超分子结构2-萘胺-1，5-二磺酸插层材料，简写为ZnAl-NADA-LDHs，其分子式为：[Zn 2 1-x Al 3 x 2 ](C 10 H 7 NO 6 S 2 ) 2- x/2 mH 2 O，是以水滑石ZnAl-NO 3 -LDHs为前体，采用离子交换法将2-萘胺-1，5-二磺酸插入到ZnAl-NO 3 -LDHs层间，组装得到晶相结构良好、性能优异的ZnAl-NADA-LDHs。

The polyvinyl chloride static and dynamic experiments of the heat stability by three novel low-lead, non-lead and low-tin, and non-lead and non-tin thermal stabilizers remixed respectively with phosphite ester, epoxidized soybean oil,β-diketone, pentaerythritol and houghite were reviewed.

通过新型低铅、无铅低锡和无铅无锡热稳定剂分别与亚磷酸酯、环氧大豆油、β-二酮、季戊四醇和水滑石进行复配，进行了聚氯乙烯的静态和动态热稳定性实验。

Hydrotalcites belong to a family of anionic clays. Because of its special composition and structure, hydrotalcites are shown highly activity and selectivity in catalytic reaction, such as hydrogenization, polymerization, and condensation.

水滑石为一类阴离子型层状粘土，由于其组成和结构的特殊性，使其在催化加氢、聚合、缩合及醇类转化等有机反应中表现出高的催化活性和选择性，同时，它们还可以作为吸附剂、阻燃剂和热稳定剂等。

So we synthesis three kinds of hydrotalcite and study their structure differences.

因此我们合成了几种水滑石的系列产物，对其结构上的差异作了较为深入的研究。

In recent years, nano-scale hydrotalcite has been synthesized by rapid developing nanotechnology.

近年来，人们借助迅速发展的纳米技术，制备了纳米水滑石。

Many experimental works have been performed in the preparation and application of hydrotalcite during the past decades.

本文全面介绍了水滑石类化合物的结构、物理化学特性、制备方法、以及应用。

The mechanisms of phosphate sorption on hydrotalcite and its calcined product are different, which has been confirmed by X-ray diffraction examination.

水滑石及其焙烧产物对磷的吸附具有不同的机理，并得到了X射线衍射的证实。

The results showed that the catalytic selectivity of this transesterification reaction over these organic anion-pillared hydrotalcite was significantly improved.

结果表明，与水滑石相比，org-LDHs对碳酸二甲酯与苯酚酯交换反应的催化选择性有显著的提高。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。