2) meta-acid
偏酸(无机酸)
3) sodium metasilicate
偏硅酸钠
1.
This paper introduces the producing tech- nology and status of detergent builder in our country,and then analyzes the function compare of 4A zeolite,sodium metasili- cate,δ-Layered Sodium Silicate detergent builder and then proposes the 8-Layered Sodium Silicate is the best product to substitute STPP,sodium metasilicate,4A zeolite.
文章介绍了国内硅化合物中各洗涤助剂的生产工艺技术及生产状况,并对4A 沸石、偏硅酸钠、δ层硅等助洗剂的性价比作了客观分析。
2.
The historical and present status of sodium metasilicate production and its development in China and foreign countries are summarized.
论述了国内外偏硅酸钠的发展历史及产业现状，介绍了产品性能及应用、市场状况，生产工艺及设备对产品质量的影响也作了讨论。
3.
A low cost compounded surfactant(CS) was developed for EOR in higher temperature and middle low permeability sandstone reservoirs in Zhuangxi,Shengli,after many rounds of profile modification,in particular,and comprised mainly mixed natural carboxylates prepared of bottom cotton seed oil,modified sodium humate of lignite,sodium metasilicate,and polyether surfactant.
该剂的主要成分为:用棉籽油脚制成的混合天然羧酸盐,用褐煤制成的改性腐殖酸钠、偏硅酸钠及聚醚类表面活性剂。
4) ammonium metatungstate
偏钨酸铵
1.
Vapour-phase O-methylation of catechol with methanol over ammonium metatungstate exchanged hydrotalcites;
偏钨酸铵柱撑水滑石上邻苯二酚与甲醇的O-甲基化反应
2.
Ammonium tungsten oxide sulfide [(NH4)2WO2S2] crystal was synthesized in aqueous solution using ammonium metatungstate (AMT) and ammonium sulfide as raw materials.
本工作用偏钨酸铵和硫化铵为原料,在水溶液中合成二硫代钨酸铵晶体[(NH4)2WO2S2]。
3.
Catalytic properties of SiO2-supported ammonium metatungstate (AMT) catalysts calcined at different temperatures were investigated for the vapour-phase o-methylation of catechol with methanol.
考察了SiO2负载的偏钨酸铵催化剂(AMT/SiO2)上邻苯二酚和甲醇气相单醚化反应的性能。
5) metatitanic acid
偏钛酸
1.
Preparation technology and industrialization production of nanometer TiO_2 using metatitanic acid as raw material;
以偏钛酸为原料制备纳米TiO_2的方法与工业生产
2.
Preparation of nano-TiO_2 powders with metatitanic acid and its photo-catalytic properties;
偏钛酸制备纳米TiO_2粉体及其光催化性能研究
3.
Experimental study on flocculating fine metatitanic acid by modified polyacrylamide;
改性聚丙烯酰胺絮凝细小偏钛酸的试验研究
6) Sodium meta-aluminate
偏铝酸钠
1.
Sodium meta-aluminate and chitosan were selected.
从中选择偏铝酸钠、壳聚糖,并详细研究其用量、pH对预处理效果的影响,结果显示偏铝酸钠为较合适的凝聚剂。
2.
A direct method for preparation of ultra-pure pseudo-boehmite with large specific surface area and large pore volume from sodium meta-aluminate solution obtained from Shanxi Aluminium Plant was provided.
利用自制的超深度脱硅剂将山西铝厂生产的偏铝酸钠母液进行精制 ,使母液中的硅铝比 (m(SiO2 ) /m(Al2 O3 ) )和铁铝比(m(Fe2 O3 ) /m(Al2 O3 ) )稳定达到万分之一以下 ,以制取高纯拟薄水铝石 。
补充资料：偏酸
分子式：
CAS号：
性质：正酸或亚酸按摩尔比1：1进行分子内脱水而得到的酸。正酸脱水得偏酸如偏磷酸（HPO3）、偏硼酸（HBO2）、偏铝酸（HAlO2）等，亚酸脱水得偏亚酸如偏亚磷酸（HPO2）、偏亚砷酸（HAsO2）等。偏酸常以聚合体形式存在，例如偏磷酸和偏硼酸常以（HPO3）n和(HBO2)n的形式存在。
CAS号：
性质：正酸或亚酸按摩尔比1：1进行分子内脱水而得到的酸。正酸脱水得偏酸如偏磷酸（HPO3）、偏硼酸（HBO2）、偏铝酸（HAlO2）等，亚酸脱水得偏亚酸如偏亚磷酸（HPO2）、偏亚砷酸（HAsO2）等。偏酸常以聚合体形式存在，例如偏磷酸和偏硼酸常以（HPO3）n和(HBO2)n的形式存在。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条