Based on the principle of ester hydrolyzation to ether in alkali condition, the process for preparation of dimethyl sulfide from sodium methyl sulfate residue was investigated.
根据酯在碱性条件下水解反应生成醚的原理，研究了以甲基硫酸钠废渣为原料制备二甲基硫醚的方法。
The dominant bacteria, which can remove methyl sulfide such as methanethiol(ME), dimethyl sulfide(DMS) and dimethyl disulfide(DMDS), were enriched and cultured by activated sludge process.
采用活性污泥法富集培养去除甲硫醇、甲硫醚、二甲基二硫等甲基硫化物的优势菌种。
The two catalytic systems can be recycled twice and three times, respectively, with very low enantioselectivities for the oxidation of phenyl methyl sulfide with 30% H2O2 as oxidant in acetone.
以丙酮为溶剂，30％H2O2为氧化剂，两种体系催化苯甲硫醚氧化反应分别可以循环使用两次和三次，但产物亚砜的对映选择性很低。
The main constituents of the waste gas include hydrogen sulfide, ammonia, dimethyl benzene, benzene, methyl benzene, phenol, hydrocarbon, methyl mercaptan, dimethyl sulfide and dimethyl disulfide.
废气主要组成为硫化氢、氨气、二甲苯、苯、甲苯、酚、烃类、甲硫醇、甲硫醚、二甲二硫等。
The synthesis of 5-chloro-2-methyl-4-isothiazoline-3-ketone with multisodium sulfide, methyl acrylate, methyl amine, had been studied. The product had good ability of killing the mold and bacteria.
以多硫化钠、丙烯酸甲酯、甲胺等为原料合成杀菌剂5 -氯- 2 -甲基- 4 -异噻唑啉- 3-酮，具有很好的杀灭细菌、霉菌的能力。
The synthesis of 5-chloro-2-methyl-4-isothiazoline-3-ketone with multisodium sulfide, methyl acrylate, methyl amine, had been studied. The product had good ability of killing the mold and bacteria.
以多硫化钠、丙烯酸甲酯、甲胺等为原料合成杀菌剂5 -氯- 2 -甲基- 4 -异噻唑啉- 3-酮，具有很好的杀灭细菌、霉菌的能力。
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