硅酸钠

They are as follows:(1) Studies of composition and structure of hydrated sodium aluminosilicate.

分述如下：水合铝硅酸钠的组成和结构研究。

The obtained catalyst was used to catalyze the transesterification of crude cottonseed oil to produce biodiesel.

以NaSiO39H2O为原料，通过高温锻烧、研磨、过筛等工艺制得硅酸钠固体催化剂，将其用于棉籽毛油的酯交换反应制备生物柴油。

According to the test result,the process of synthesis of cryolite from sodium fluorosilicate by ammonia method and the optimum process parameters are introduced in detail.

根据试验研究结果，详细介绍了氟硅酸钠氨法脱硅、氨化液化学合成制取冰晶石的工艺流程和优惠工艺技术参数，以及在制取过程中应着重注意控制的工艺条件，有效地解决了在以往生产中产品除硅、硫杂质难及产品灼烧失量大等问题。

The paper discusses the process conditions of producing synthetic cryolite by carbonation method and the main factors affecting the yield rate of sodium fluosilicate.

本文探讨了碳酸化法合成冰晶石的工艺条件，确定了影响氟硅酸钠纯碱分解率的主要因素，试验结果表明：NaF溶液的精制和〔6F-〕/〔Al〕、反应温度等对冰晶石性能有显著的影响。

An improved analysis method for determining iron content in sodium fluosilicate product was introduced.

介绍了一种改进的测定氟硅酸钠产品中铁含量的分析方法。

Huaying is engaged in production and supply of phosphoric acid, phosphogypsum and sodium fluosilicate, and made great progress in operation in 10 years.

主要从事磷酸，石膏、氟硅酸钠等磷化工系列产品的销售生产业务，公司成立十年来生产经营取得了较快发展，目前正在拓展磷酸后续加工产品——磷铵生产、销售及磷酸出口业务。

Huaying is engaged in production and supply of phosphoric acid, phosphogypsum and sodium fluosilicate, and made great progress in operation in 10 years. The company is developing the production and market of its downstream product MAP and expanding its P.A export business.

主要从事磷酸，石膏、氟硅酸钠等磷化工系列产品的销售生产业务，公司成立十年来生产经营取得了较快发展，目前正在拓展磷酸后续加工产品——磷铵生产、销售及磷酸出口业务。

The magnesium hydroxide, sodium fluosilicate are prepare d from high and low temperature salt (discarded materials from the salt chemical industry).

报道利用盐化工废弃物高低温盐制取无机阻燃剂氢氧化镁和具有广泛用途的氟硅酸钠的几种新方法。

Huaying is engaged in production supply of phosphic acid, phosphogypsum sodium fluosilicate, made great progress in operation in 10 years. The company is developing the production market of its downstream product MAP exping its P.A expt business.

主要从事磷酸，石膏、氟硅酸钠等磷化工系列产品的销售生产业务，公司成立十年来生产经营取得了较快发展，目前正在拓展磷酸后续加工产品——磷铵生产、销售及磷酸出口业务。

Makes in the construction rubber with the above raw material, when use each kilogram joins 8-15 gram sodium fluosilicate, has the strong waterproof character, and may solidify the time to reduce is 3 hours, this invention product may use in inside and outside the building room to repair the ceramic tile, the brick, the marble, the lumber, the glass cementation, is gluing the ceramic tile domain to be allowed to take the cement the substitute.

用上述原料制成的建筑胶中，在使用时每公斤加入8-15克的氟硅酸钠，具有强防水性，并且可以将固化时间缩短为3小时，本发明的产品可用于建筑物的室内外装修中瓷砖、地砖、大理石、木材、玻璃的粘接。

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。