dimethylamine

pech-amine is one of the cationic modification agents which come from the reaction of dimethylamine and polymer of epichlorohydrin under the condition of 95 ℃.

聚环氧氯丙烷胺化物PECH-amine是由环氧氯丙烷的聚合物与二甲胺在95℃条件下反应得到的阳离子改性剂。

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Alkyl dimethylamine is made from fatty alcohol and dimethylamine by one stage catalysis.

由脂肪醇、二甲胺一步催化法制取烷基二甲基胺.

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a study was made on the effect of dimethylamine ( dma) as impurity in butadiene on the synthesis and properties of medium vinyl polybutadiene rubber.

本工作研究了二甲胺对聚合速度、转化率、高聚物的微观结构、特性粘数及分子量分布的影响。

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the results showed that the selectivity for dimethylamine was over 60% at the methanol conversion of 98.5%.

结果表明：该催化剂具有优良的转化活性和二甲胺选择性。

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the syntheses of phenol-formaldehyde resin modified with dimethylamine or isopropylamine under suitable conditions were conducted.

利用二甲胺和异丙胺在适宜的条件下对酚醛树脂进行改性，得到了胺改性酚醛树脂。

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determination of ammonia, dimethylamine and trimethylamine in the air by ion chromatography

离子色谱法同时测定空气中的氨、二甲胺、三甲胺

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study on the new technology for recovery of dimethylamine from dmf distillery wastewater in tannery factories

合成革厂DMF蒸馏废水中回收二甲胺的新工艺研究

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influence factors of removal of dimethylamine from wastewater by air stripping

空气吹脱法脱除废水中二甲胺的影响因素研究

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the steam treated mordenite for selective catalytic synthesis of dimethylamine

用水蒸汽处理丝光沸石选择性催化合成二甲胺的研究

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effect of pretreatment on catalytic performance of natural mordenite for the synthesis of dimethylamine

预处理对天然丝光沸石合成二甲胺催化性能的影响

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development of a room temperature curing agent, metaphenylene dimethylamine polycondensate, for epoxy resin

环氧树脂室温固化剂间苯二甲胺缩聚物的研制

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it is recommended that one step process of dimethylamine carbonylation should be adopted by manufacturer in order to reduce the production cost and promote product quality and elevate market competition of products.

建议生产厂家采用一步法生产，以降低成本，提高产品质量，从而提高其市场竞争力。

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the results showed that polymerization temperature, molar ratio of epichlorohydrin and dimethylamine, and polymerization time all had an optimum value under certain polymerization conditions.

结果表明：在一特定聚合体系下，交联剂加入量、反应温度、环氧氯丙烷和二甲胺摩尔比、聚合时间等因素对于聚合物的阳离子度和分子量都存在一最佳值。

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chromatographic analysis for condensation products of acetic acid and dimethylamine

醋酸与二甲胺缩合产物的气相色谱分析

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study on the kinetics of the reactions between tris ( alkylxanthato) cobalt(ⅲ) and dimethylamine by high-performance liquid chromatography

高效液相色谱法对烷基黄原酸合钴（Ⅲ）与二甲胺反应动力学的研究

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study of the synthetic method of alkyl dimethylamine oxide

十二烷基二甲基氧化叔胺合成方法的探索

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study on the separation of low concentration dimethylamine from wastewater of synthetic leather industry

合成革工业废水中低浓度二甲胺的分离研究

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linen was chemically modified by the synthetic product of polyepichlorohydrin and dimethylamine, so as to improve its dye uptake and dyeing behaviour.

利用聚环氧氯丙烷与二甲胺的合成产物对亚麻织物进行化学改性，以提高亚麻织物的上染率，改善其染色性能。

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effects of different elements on the performances of copper based catalysts for disproportionation of dimethylamine

铜基催化剂中助组分对二甲胺歧化性能的影响

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study on the synthesis of n, n-dimethylformamide from methyl formate and dimethylamine

甲酸甲酯与二甲胺合成二甲基甲酰胺的研究

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catalyst and technology for synthesizing dimethylamine with high selectivity

高选择性合成二甲胺催化剂中试研究

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preparation and reactivity of the catalysts for selective synthesis of dimethylamine

选择性合成二甲胺催化剂的制备和反应性能

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in the product solution at the end period. methyl formate and dimethylamine are controlled at equal molar feeding.

反应过程控制甲酸甲酯与二甲胺等摩连续进料。

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the results showed that adsorbent r-3 with 10% crosslink degree and dimethylamine group performed the most appropriate power to purify triterpenoid acids.

结果表明交联度为10%、引入二甲胺的R-3树脂对三萜酸的吸附选择性最佳。

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preparation of alkyl dimethylamine

烷基二甲基胺的研制

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catalyst is one of key issues in the process of amination of fatty alcohol with dimethylamine for preparation of long chain alkyl dimethyl tertiary amine.

脂肪醇在催化剂作用下直接胺化催化反应是目前生产长链烷基二甲基叔胺的主要工艺。该工艺的技术关键之一在于其催化剂。

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treatment of the dimethylamine wastewater by complex extraction and ion-exchange

络合萃取法及离子交换法处理二甲胺废水的研究

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a new process with industrialization value for manufacture of chloroform and n, n-dimethylformamide has been studied, utilizing chlorine oils and 40% aqueous solution of dimethylamine as raw materials.

研究了一条以氯油和40%二甲胺水溶液为原料合成氯仿和二甲基甲酰胺（DMF）的具有工业开发价值的新工艺路线。

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molecular sieve catalyst for high proportion dimethylamine

高比例二甲胺分子筛催化剂

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it shows that self-made catalyst nahm has more higher dimethylamine selectivity than others.

结果表明：自制NaHM催化剂对二甲胺具有更高选择性。

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