三氧化二铬

该工艺同时副产大量三氧化二铬和硫酸钠，降低了2-吡啶甲酸铬的生产成本。

The process also produces lots of chromium oxide and sodium sulfate , consequently reduce the process cost .

研究了以一水氢氧化锂、电解二氧化锰EMD、三氧化二铬为原料，直接高温固相合成LiMn（0.85）Cr（0.15）O2。

LiMn_0.85Cr_0.15O_2 was synthesized with lithium hydroxide , electrolyte manganese dioxide , chromium trioxide by solid state synthesis method at high temperature .

铬矿渣及掺有铬矿渣水泥中三氧化二铬的测定

Determination of Cr_2O_3 in Chromium Slag & Chromium Slag Blending Cement

文中提出了一种以三氧化二铬为基准物料制备含铬标准样品的新方法。

A method of preparation of the standard samples is proposed .

以高碳铬铁合金粉为原料制备三氧化二铬

Chromium Oxide was Produced from High-carbon Ferrochrome Alloy Powder

从含铬（Ⅵ）废水制备三氧化二铬

Preparation of cr_2o_3 from cr (ⅵ) wastewater

纳米三氧化二铬的拉曼散射

Raman Scattering of Nanoscale Chromic Oxides

在管状炉和感应炉中对不锈钢粉尘含碳球团进行加热还原，分析得出其还原度和还原速率与纯三氧化二铬相比达到相同还原程度的温度较低；

The reduction extent and rate increase with temperature , however the temperature is lower at the same reduction extent in pure Cr_2O_3 reduction .

以Fe2+对Cr2O27-进行库仑滴定，采用永停终点法确定库仑滴定终点，根据电解定律计算三氧化二铬含量。

The end point of the titration is confirmed by the forever stop end point method . The content of Cr_2O_3 in chromium mineral is calculated based on the electrolyse law .

利用重铬酸钠铵盐还原法制备三氧化二铬，其工艺简单，产品质量高，可达化学试剂级。

The process for preparating chromium trioxide from sodium dichromate by reduction of ammonium salt is simple and the product has high quality and can be up to chemical regent grade .

本文以2,5二甲基2,5已二醇为原料，分别用三氧化二铅、二氧化二铬和磷酸催化脱水合成2,5二甲基2,4己二烯，同时用三氧化二铬作催化剂对醇脱水生成的混合二烯烃进行了异构化。

2,5 Dimethyl 2,4 hexadiene has been synthesized by catalytic dehydration of 2,5 dimethyl 2,5 hexanediol with aluminium oxide , chromium oxide and phosphoric acid respectively . The mixed dienes have been isomerized by chromium oxide .