2) direct oxidation
直接氧化法
1.
Synthesis of 2,3,5-trimethylhydroquinone by direct oxidation;
直接氧化法合成2,3,5-三甲基氢醌
2.
p-Bromobenzaldehyde was synthesized from p-bromotoluene by direct oxidation with manganese sesquioxide The factors affecting the yields of p-bromobenzaldehyde were investigated.
用三氧化二锰直接氧化法将对溴甲苯氧化对溴苯甲醛,讨论了合成过程中影响产率的各种因素,确定反应的优化条件为温度338K,硫酸的浓度7。
3.
The paper reviews the development of direct oxidation process for sulfur recovery, with the emphasis on direct oxidation processes which are more successful recently, and puts forth the necessity for developing the processes.
综述了直接氧化法硫回收技术的进展情况 ,重点介绍了目前较为成功的直接氧化法工艺技术 ,指出了开发该技术的必要性。
3) indirect zinc oxide
间接法氧化锌
1.
on its particle surface during vulcanization;the modulus at 300% and abrasion resistance of vulcanizate increased,and the compression set and compression fatigue temperature-rise decreased by using nano-zinc oxide instead of conventional indirect zinc oxide in equal weigh.
以纳米氧化锌等量替代普通间接法氧化锌 ,可提高硫化胶的 3 0 0 %定伸应力和耐磨性 ,减小压缩永久变形 ,降低压缩疲劳温升 ;以纳米氧化锌减量 5 0 %替代间接法氧化锌 ,仍可保证硫化胶的性能要求。
2.
The results showed that the Mooney viscosity of compound decreased,the Mooney scorch time extended and the curing behavior changed little by using nano-zinc oxide in reduced weight instead of indirect zinc oxide;the tear strength,abrasion resistance and H pull-out of vulcanizate increased;the endurance and average tread wear of test tire improved;and the cost of compound dereased.
用纳米氧化锌减量替代间接法氧化锌 ,胶料的门尼粘度下降 ,门尼焦烧时间延长 ,硫化特性基本保持不变 ;硫化胶的撕裂强度、耐磨性及H抽出力有所提高 ;试验轮胎的耐久性能及累计平均磨耗里程均较生产轮胎有所提高 ;可适当降低胶料成本。
4) electro-fax paper
直接法静电复印纸，氧化锌静电复印纸
5) direct combination of hydrogen and oxygen
氢氧直接化合法
6) directed metal oxidation
直接金属氧化法
补充资料：直接法氧化锌
分子式：
CAS号：
性质：以锌矿石为原料制备的氧化锌，直接法氧化锌是用锌矿粉与无烟煤、石灰按比例混合成球，经还原冶炼制得锌蒸气，再用空气氧化而成。其氧化锌含量约98.0％，低于间接法氧化锌，根据锌矿石种类的不同，直接法氧化锌可以含有氧化铅、氧化铁、二氧化硫、三氧化硫、氯等。
CAS号：
性质：以锌矿石为原料制备的氧化锌，直接法氧化锌是用锌矿粉与无烟煤、石灰按比例混合成球，经还原冶炼制得锌蒸气，再用空气氧化而成。其氧化锌含量约98.0％，低于间接法氧化锌，根据锌矿石种类的不同，直接法氧化锌可以含有氧化铅、氧化铁、二氧化硫、三氧化硫、氯等。
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