However,using THEIC initiator,the reaction rate for epichlorohydrin is faster than that of propylene oxide and 2-butoxyxirane,respectively.

在THEIC体系,就链引发而言,氯丙烷的大于丙烷、丁基醚乙烷。

This paper contains two parts: (1) Trisubstituted Cyclopropane and FluorinatedAlkynone; (2) Phosphate Ester and Phosphonyl Compounds.

(1)三取代丙烷和含氟炔酮;(2)膦酸酯和膦酰化物。

So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...

增加丙烷脱沥青的溶剂比,用加氢补充制代替制等,此外,在含硫原油生产基础油时,对原油也应适当选择。

General approaches involve the nucleophilic cycloalkylation, carbenoids addition of certain amino acid derivatives and derivatization from simple cyclopropane compounds.

制备方法包括对简单氨基酸衍生物的亲烷基化、类卡宾加成以及简单丙烷化合物的衍生化合成等。

It is proved effective that deep well aeration biological treat propylene technology is used to treat propylene epoxide saponated sewage.

实践证明,深井曝气生化处技术处丙烷皂化污水是行之有效的。

Calcium ammine catalyst was prepared with metal calcium,dehydrated liquid ammonia as raw materials,nano-silica as a carrier and acetonitrile and propylene epoxide as modifiers.

采用金属钙、脱水液氨、载体纳米二化硅及改性剂乙腈与丙烷制备出氨钙体系催化剂。

Flame retardant vinyl ester resin using tetrabromo bisphenol A, epichlorohydrin, acrylic acid as raw materials was also synthesized, Its flame retardant property was excellent.

用四溴双酚A、氯丙烷和丙烯酸为原料合成了阻燃型乙烯基酯树脂，其阻燃性能良好。

Depropanization is a procedure in the separation section of ethylene production and its effect is to separate component C3 from component C4 and C4 above.

脱丙烷是乙烯生产过程中分离工段的一个工艺步骤,其目的是将C_3和C_4以上组分分离。

In this paper, the new chelating resin (PSIM) with a polythioether backbone bearing imidazole group is first synthesized by the reaction between polychloromethylthiirane and imidazole.

通过聚硫氯丙烷与咪唑进行高分子反应，合成了以聚硫醚为主链、侧链带有咪唑基团的螯合树脂（简称PSIM）。

Moreover, we found that N-heterocyclic carbene (NHC) could served as an efficient and novel catalyst for the reactions of aziridines with silylated nucleophiles or acid anhydrides.

随后，我们发现氮杂卡宾也可以作为一种有机小分子催化剂，分别催化各类硅试剂或酸酐对氮杂丙烷化合物的开。

A divided flow cell is used for electrolysis of NaBr aqueous solution.The anolyte containing Br 2 and catholyte containing NaOH are produced simultaneously and in turn to epoxide HFP to HFPO.

在由离子膜分隔的电解槽中电解溴化钠溶液,所产生的含溴阳极液和碱性阴极液,分别是由全氟丙烯合成全氟丙烷的化剂和皂化剂。

However,using THEIC initiator,the reaction rate for epichlorohydrin is faster than that of propylene oxide and 2-butoxyxirane,respectively.

在THEIC体系,就链引发而言,环氧氯丙烷的大于环氧丙烷、丁基醚环氧烷。

This paper contains two parts: (1) Trisubstituted Cyclopropane and FluorinatedAlkynone; (2) Phosphate Ester and Phosphonyl Compounds.

(1)三取代环丙烷和含氟炔酮;(2)膦酸酯和膦酰化物。

So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...

增加丙烷脱沥青的溶剂比,用加氢补充精制代替白土精制等,此外,在含硫原油生产基础油时,对原油也应适当选择。

General approaches involve the nucleophilic cycloalkylation, carbenoids addition of certain amino acid derivatives and derivatization from simple cyclopropane compounds.

制备方法包括对简单氨基酸衍生物的亲环烷基化、类卡宾加成以及简单环丙烷化合物的衍生化合成等。

It is proved effective that deep well aeration biological treat propylene technology is used to treat propylene epoxide saponated sewage.

实践证明,深井曝气生化处理技术处理环氧丙烷皂化污水是行之有效的。

Calcium ammine catalyst was prepared with metal calcium,dehydrated liquid ammonia as raw materials,nano-silica as a carrier and acetonitrile and propylene epoxide as modifiers.

采用金属钙、脱水液氨、载体纳米二氧化硅及改性剂腈与环氧丙烷制备出氨钙体系催化剂。

Flame retardant vinyl ester resin using tetrabromo bisphenol A, epichlorohydrin, acrylic acid as raw materials was also synthesized, Its flame retardant property was excellent.

用四溴双酚A、环氧氯丙烷和丙酸为原料合成了阻燃基酯树脂，其阻燃性能良好。

Depropanization is a procedure in the separation section of ethylene production and its effect is to separate component C3 from component C4 and C4 above.

脱丙烷是生产过程中分离工段的一个工艺步骤,其目的是将C_3和C_4以上组分分离。

In this paper, the new chelating resin (PSIM) with a polythioether backbone bearing imidazole group is first synthesized by the reaction between polychloromethylthiirane and imidazole.

通过聚环硫氯丙烷与咪唑进行高分子反应，合成了以聚硫醚为主链、侧链带有咪唑基团的螯合树脂（简称PSIM）。

Moreover, we found that N-heterocyclic carbene (NHC) could served as an efficient and novel catalyst for the reactions of aziridines with silylated nucleophiles or acid anhydrides.

随后，我们发现氮杂环卡宾也可以作为一种有机小分子催化剂，分别催化各类硅试剂或酸酐对氮杂环丙烷化合物的开环。

A divided flow cell is used for electrolysis of NaBr aqueous solution.The anolyte containing Br 2 and catholyte containing NaOH are produced simultaneously and in turn to epoxide HFP to HFPO.

在由离子膜分隔的电解槽中电解溴化钠溶液,所产生的含溴阳极液和碱性阴极液,分别是由全氟丙合成全氟环氧丙烷的环氧化剂和皂化剂。

However,using THEIC initiator,the reaction rate for epichlorohydrin is faster than that of propylene oxide and 2-butoxyxirane,respectively.

在THEIC体系,就链引发而言,环氧氯丙烷的大于环氧丙烷、丁醚环氧乙烷。

This paper contains two parts: (1) Trisubstituted Cyclopropane and FluorinatedAlkynone; (2) Phosphate Ester and Phosphonyl Compounds.

(1)三取代环丙烷和含氟炔酮;(2)膦酸酯和膦酰化物。

So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...

增加丙烷脱沥青的溶剂比,用加氢补充精制代替白土精制等,此外,在含硫原油础油时,对原油也应适当选择。

General approaches involve the nucleophilic cycloalkylation, carbenoids addition of certain amino acid derivatives and derivatization from simple cyclopropane compounds.

制备方法包括对简单氨酸衍物的亲环烷化、类卡宾加成以及简单环丙烷化合物的衍化合成等。

It is proved effective that deep well aeration biological treat propylene technology is used to treat propylene epoxide saponated sewage.

实践证,曝气化处理技术处理环氧丙烷皂化污水是行之有效的。

Calcium ammine catalyst was prepared with metal calcium,dehydrated liquid ammonia as raw materials,nano-silica as a carrier and acetonitrile and propylene epoxide as modifiers.

采用金属钙、脱水液氨、载体纳米二氧化硅及改性剂乙腈与环氧丙烷制备出氨钙体系催化剂。

Flame retardant vinyl ester resin using tetrabromo bisphenol A, epichlorohydrin, acrylic acid as raw materials was also synthesized, Its flame retardant property was excellent.

用四溴双酚A、环氧氯丙烷和丙烯酸为原料合成了阻燃型乙烯酯树脂，其阻燃性能良好。

Depropanization is a procedure in the separation section of ethylene production and its effect is to separate component C3 from component C4 and C4 above.

脱丙烷是乙烯过程中分离工段的一个工艺步骤,其目的是将C_3和C_4以上组分分离。

In this paper, the new chelating resin (PSIM) with a polythioether backbone bearing imidazole group is first synthesized by the reaction between polychloromethylthiirane and imidazole.

通过聚环硫氯丙烷与咪唑进行高分子反应，合成了以聚硫醚为主链、侧链带有咪唑团的螯合树脂（简称PSIM）。

Moreover, we found that N-heterocyclic carbene (NHC) could served as an efficient and novel catalyst for the reactions of aziridines with silylated nucleophiles or acid anhydrides.

随后，我们发现氮杂环卡宾也可以作为一种有机小分子催化剂，分别催化各类硅试剂或酸酐对氮杂环丙烷化合物的开环。

A divided flow cell is used for electrolysis of NaBr aqueous solution.The anolyte containing Br 2 and catholyte containing NaOH are produced simultaneously and in turn to epoxide HFP to HFPO.

在由离子膜分隔的电解槽中电解溴化钠溶液,所的含溴阳极液和碱性阴极液,分别是由全氟丙烯合成全氟环氧丙烷的环氧化剂和皂化剂。

However,using THEIC initiator,the reaction rate for epichlorohydrin is faster than that of propylene oxide and 2-butoxyxirane,respectively.

在THEIC体系,就链引发而言,环氧氯丙烷的大于环氧丙烷、丁基醚环氧乙烷。

This paper contains two parts: (1) Trisubstituted Cyclopropane and FluorinatedAlkynone; (2) Phosphate Ester and Phosphonyl Compounds.

(1)三取代环丙烷和含氟炔酮;(2)膦酸酯和膦酰化物。

So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...

增丙烷脱沥青的溶剂比,用氢补充精制代替白土精制等,此外,在含硫原油生产基础油时,对原油也应适当选择。

General approaches involve the nucleophilic cycloalkylation, carbenoids addition of certain amino acid derivatives and derivatization from simple cyclopropane compounds.

制备方法包括对基酸衍生物的亲环烷基化、类卡宾及环丙烷化合物的衍生化合等。

It is proved effective that deep well aeration biological treat propylene technology is used to treat propylene epoxide saponated sewage.

实践证明,深井曝气生化处理技术处理环氧丙烷皂化污水是行之有效的。

Calcium ammine catalyst was prepared with metal calcium,dehydrated liquid ammonia as raw materials,nano-silica as a carrier and acetonitrile and propylene epoxide as modifiers.

采用金属钙、脱水液、载体纳米二氧化硅及改性剂乙腈与环氧丙烷制备出钙体系催化剂。

Flame retardant vinyl ester resin using tetrabromo bisphenol A, epichlorohydrin, acrylic acid as raw materials was also synthesized, Its flame retardant property was excellent.

用四溴双酚A、环氧氯丙烷和丙烯酸为原料合了阻燃型乙烯基酯树脂，其阻燃性能良好。

Depropanization is a procedure in the separation section of ethylene production and its effect is to separate component C3 from component C4 and C4 above.

脱丙烷是乙烯生产过程中分离工段的一个工艺步骤,其目的是将C_3和C_4上组分分离。

In this paper, the new chelating resin (PSIM) with a polythioether backbone bearing imidazole group is first synthesized by the reaction between polychloromethylthiirane and imidazole.

通过聚环硫氯丙烷与咪唑进行高分子反应，合了聚硫醚为主链、侧链带有咪唑基团的螯合树脂（称PSIM）。

Moreover, we found that N-heterocyclic carbene (NHC) could served as an efficient and novel catalyst for the reactions of aziridines with silylated nucleophiles or acid anhydrides.

随后，我们发现氮杂环卡宾也可作为一种有机小分子催化剂，分别催化各类硅试剂或酸酐对氮杂环丙烷化合物的开环。

A divided flow cell is used for electrolysis of NaBr aqueous solution.The anolyte containing Br 2 and catholyte containing NaOH are produced simultaneously and in turn to epoxide HFP to HFPO.

在由离子膜分隔的电解槽中电解溴化钠溶液,所产生的含溴阳极液和碱性阴极液,分别是由全氟丙烯合全氟环氧丙烷的环氧化剂和皂化剂。

However,using THEIC initiator,the reaction rate for epichlorohydrin is faster than that of propylene oxide and 2-butoxyxirane,respectively.

在THEIC体系,就链引发而言,环氧氯的大于环氧、丁基醚环氧。

This paper contains two parts: (1) Trisubstituted Cyclopropane and FluorinatedAlkynone; (2) Phosphate Ester and Phosphonyl Compounds.

(1)取代环和含氟炔酮;(2)膦酸酯和膦酰化物。

So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...

增加脱沥青的溶剂比,用加氢补充精代替白土精等,此外,在含硫原油生产基础油时,对原油也应适当选择。

General approaches involve the nucleophilic cycloalkylation, carbenoids addition of certain amino acid derivatives and derivatization from simple cyclopropane compounds.

备方法包括对简单氨基酸衍生物的亲环基化、类卡宾加成以及简单环化合物的衍生化合成等。

It is proved effective that deep well aeration biological treat propylene technology is used to treat propylene epoxide saponated sewage.

实践证明,深井曝气生化处理技术处理环氧皂化污水是行之有效的。

Calcium ammine catalyst was prepared with metal calcium,dehydrated liquid ammonia as raw materials,nano-silica as a carrier and acetonitrile and propylene epoxide as modifiers.

采用金属钙、脱水液氨、载体纳米二氧化硅及改性剂腈与环氧备出氨钙体系催化剂。

Flame retardant vinyl ester resin using tetrabromo bisphenol A, epichlorohydrin, acrylic acid as raw materials was also synthesized, Its flame retardant property was excellent.

用四溴双酚A、环氧氯和烯酸为原料合成了阻燃型烯基酯树脂，其阻燃性能良好。

Depropanization is a procedure in the separation section of ethylene production and its effect is to separate component C3 from component C4 and C4 above.

脱是烯生产过程中分离工段的一个工艺步骤,其目的是将C_3和C_4以上组分分离。

In this paper, the new chelating resin (PSIM) with a polythioether backbone bearing imidazole group is first synthesized by the reaction between polychloromethylthiirane and imidazole.

通过聚环硫氯与咪唑进行高分子反应，合成了以聚硫醚为主链、侧链带有咪唑基团的螯合树脂（简称PSIM）。

Moreover, we found that N-heterocyclic carbene (NHC) could served as an efficient and novel catalyst for the reactions of aziridines with silylated nucleophiles or acid anhydrides.

随后，我们发现氮杂环卡宾也可以作为一种有机小分子催化剂，分别催化各类硅试剂或酸酐对氮杂环化合物的开环。

A divided flow cell is used for electrolysis of NaBr aqueous solution.The anolyte containing Br 2 and catholyte containing NaOH are produced simultaneously and in turn to epoxide HFP to HFPO.

在由离子膜分隔的电解槽中电解溴化钠溶液,所产生的含溴阳极液和碱性阴极液,分别是由全氟烯合成全氟环氧的环氧化剂和皂化剂。

However,using THEIC initiator,the reaction rate for epichlorohydrin is faster than that of propylene oxide and 2-butoxyxirane,respectively.

在THEIC体系,就链引发而言,环氧氯的大于环氧、丁基醚环氧。

This paper contains two parts: (1) Trisubstituted Cyclopropane and FluorinatedAlkynone; (2) Phosphate Ester and Phosphonyl Compounds.

(1)三取代环含氟炔酮;(2)膦酸酯膦酰化物。

So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...

增加脱沥青的溶比,用加氢补充精制代替白土精制等,此外,在含硫原油生产基础油时,对原油也应适当选择。

General approaches involve the nucleophilic cycloalkylation, carbenoids addition of certain amino acid derivatives and derivatization from simple cyclopropane compounds.

制备方法包括对简单氨基酸衍生物的亲环基化、类卡宾加成以及简单环化合物的衍生化合成等。

It is proved effective that deep well aeration biological treat propylene technology is used to treat propylene epoxide saponated sewage.

实践证明,深井曝气生化处理技术处理环氧皂化污水是行之有效的。

Calcium ammine catalyst was prepared with metal calcium,dehydrated liquid ammonia as raw materials,nano-silica as a carrier and acetonitrile and propylene epoxide as modifiers.

采用金属钙、脱水液氨、载体纳米二氧化硅及改性与环氧制备出氨钙体系催化。

Flame retardant vinyl ester resin using tetrabromo bisphenol A, epichlorohydrin, acrylic acid as raw materials was also synthesized, Its flame retardant property was excellent.

用四溴双酚A、环氧氯烯酸为原料合成了阻燃型烯基酯树脂，其阻燃性能良好。

Depropanization is a procedure in the separation section of ethylene production and its effect is to separate component C3 from component C4 and C4 above.

脱是烯生产过程中分离工段的一个工艺步骤,其目的是将C_3C_4以上组分分离。

In this paper, the new chelating resin (PSIM) with a polythioether backbone bearing imidazole group is first synthesized by the reaction between polychloromethylthiirane and imidazole.

通过聚环硫氯与咪唑进行高分子反应，合成了以聚硫醚为主链、侧链带有咪唑基团的螯合树脂（简称PSIM）。

Moreover, we found that N-heterocyclic carbene (NHC) could served as an efficient and novel catalyst for the reactions of aziridines with silylated nucleophiles or acid anhydrides.

随后，我们发现氮杂环卡宾也可以作为一种有机小分子催化，分别催化各类硅试或酸酐对氮杂环化合物的开环。

A divided flow cell is used for electrolysis of NaBr aqueous solution.The anolyte containing Br 2 and catholyte containing NaOH are produced simultaneously and in turn to epoxide HFP to HFPO.

在由离子膜分隔的电解槽中电解溴化钠溶液,所产生的含溴阳极液碱性阴极液,分别是由全氟烯合成全氟环氧的环氧化皂化。

However,using THEIC initiator,the reaction rate for epichlorohydrin is faster than that of propylene oxide and 2-butoxyxirane,respectively.

在THEIC体系,就链引发而言,环氧氯丙烷的大于环氧丙烷、丁基醚环氧乙烷。

This paper contains two parts: (1) Trisubstituted Cyclopropane and FluorinatedAlkynone; (2) Phosphate Ester and Phosphonyl Compounds.

(1)三取代环丙烷和含氟炔酮;(2)膦酸酯和膦酰化物。

So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...

增加丙烷脱沥青的溶剂比,用加氢补充精制代替白土精制等,此外,在含硫原油生产基础油时,原油也应适当选择。

General approaches involve the nucleophilic cycloalkylation, carbenoids addition of certain amino acid derivatives and derivatization from simple cyclopropane compounds.

制备方法包单氨基酸衍生物的亲环烷基化、类卡宾加成单环丙烷化合物的衍生化合成等。

It is proved effective that deep well aeration biological treat propylene technology is used to treat propylene epoxide saponated sewage.

实践证明,深井曝气生化处理技术处理环氧丙烷皂化污水是行之有效的。

Calcium ammine catalyst was prepared with metal calcium,dehydrated liquid ammonia as raw materials,nano-silica as a carrier and acetonitrile and propylene epoxide as modifiers.

采用金属钙、脱水液氨、载体纳米二氧化硅改性剂乙腈与环氧丙烷制备出氨钙体系催化剂。

Flame retardant vinyl ester resin using tetrabromo bisphenol A, epichlorohydrin, acrylic acid as raw materials was also synthesized, Its flame retardant property was excellent.

用四溴双酚A、环氧氯丙烷和丙烯酸为原料合成了阻燃型乙烯基酯树脂，其阻燃性能良好。

Depropanization is a procedure in the separation section of ethylene production and its effect is to separate component C3 from component C4 and C4 above.

脱丙烷是乙烯生产过程中分离工段的一个工艺步骤,其目的是将C_3和C_4上组分分离。

In this paper, the new chelating resin (PSIM) with a polythioether backbone bearing imidazole group is first synthesized by the reaction between polychloromethylthiirane and imidazole.

通过聚环硫氯丙烷与咪唑进行高分子反应，合成了聚硫醚为主链、侧链带有咪唑基团的螯合树脂（称PSIM）。

Moreover, we found that N-heterocyclic carbene (NHC) could served as an efficient and novel catalyst for the reactions of aziridines with silylated nucleophiles or acid anhydrides.

随后，我们发现氮杂环卡宾也可作为一种有机小分子催化剂，分别催化各类硅试剂或酸酐氮杂环丙烷化合物的开环。

A divided flow cell is used for electrolysis of NaBr aqueous solution.The anolyte containing Br 2 and catholyte containing NaOH are produced simultaneously and in turn to epoxide HFP to HFPO.

在由离子膜分隔的电解槽中电解溴化钠溶液,所产生的含溴阳极液和碱性阴极液,分别是由全氟丙烯合成全氟环氧丙烷的环氧化剂和皂化剂。

However,using THEIC initiator,the reaction rate for epichlorohydrin is faster than that of propylene oxide and 2-butoxyxirane,respectively.

在THEIC体系,就链言,环氧氯的大于环氧、丁基醚环氧乙。

This paper contains two parts: (1) Trisubstituted Cyclopropane and FluorinatedAlkynone; (2) Phosphate Ester and Phosphonyl Compounds.

(1)三取代环含氟炔酮;(2)膦酸酯膦酰化物。

So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...

增加脱沥青的溶剂比,用加氢补充精制代替白土精制等,此外,在含硫原油生产基础油时,对原油也应适当选择。

General approaches involve the nucleophilic cycloalkylation, carbenoids addition of certain amino acid derivatives and derivatization from simple cyclopropane compounds.

制备方法包括对简单氨基酸衍生物的亲环基化、类卡宾加成以及简单环化合物的衍生化合成等。

It is proved effective that deep well aeration biological treat propylene technology is used to treat propylene epoxide saponated sewage.

实践证明,深井曝气生化处理技术处理环氧皂化污水是行之有效的。

Calcium ammine catalyst was prepared with metal calcium,dehydrated liquid ammonia as raw materials,nano-silica as a carrier and acetonitrile and propylene epoxide as modifiers.

采用金属钙、脱水液氨、载体纳米二氧化硅及改性剂乙腈与环氧制备出氨钙体系催化剂。

Flame retardant vinyl ester resin using tetrabromo bisphenol A, epichlorohydrin, acrylic acid as raw materials was also synthesized, Its flame retardant property was excellent.

用四溴双酚A、环氧氯烯酸为原料合成了阻燃型乙烯基酯树脂，其阻燃性能良好。

Depropanization is a procedure in the separation section of ethylene production and its effect is to separate component C3 from component C4 and C4 above.

脱是乙烯生产过程中分离工段的一个工艺步骤,其目的是将C_3C_4以上组分分离。

In this paper, the new chelating resin (PSIM) with a polythioether backbone bearing imidazole group is first synthesized by the reaction between polychloromethylthiirane and imidazole.

通过聚环硫氯与咪唑进行高分子反应，合成了以聚硫醚为主链、侧链带有咪唑基团的螯合树脂（简称PSIM）。

Moreover, we found that N-heterocyclic carbene (NHC) could served as an efficient and novel catalyst for the reactions of aziridines with silylated nucleophiles or acid anhydrides.

随后，我们现氮杂环卡宾也可以作为一种有机小分子催化剂，分别催化各类硅试剂或酸酐对氮杂环化合物的开环。

A divided flow cell is used for electrolysis of NaBr aqueous solution.The anolyte containing Br 2 and catholyte containing NaOH are produced simultaneously and in turn to epoxide HFP to HFPO.

在由离子膜分隔的电解槽中电解溴化钠溶液,所产生的含溴阳极液碱性阴极液,分别是由全氟烯合成全氟环氧的环氧化剂皂化剂。

However,using THEIC initiator,the reaction rate for epichlorohydrin is faster than that of propylene oxide and 2-butoxyxirane,respectively.

在THEIC体系,就链引发而,烷的大于烷、丁基醚乙烷。

This paper contains two parts: (1) Trisubstituted Cyclopropane and FluorinatedAlkynone; (2) Phosphate Ester and Phosphonyl Compounds.

(1)三取代烷和含氟炔酮;(2)膦酸酯和膦酰化物。

So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...

增加烷脱沥青的溶剂比,用加氢补充精制代替白土精制等,此外,在含硫原油生产基础油时,对原油也应适当选择。

General approaches involve the nucleophilic cycloalkylation, carbenoids addition of certain amino acid derivatives and derivatization from simple cyclopropane compounds.

制备方法包括对简单氨基酸衍生物的亲烷基化、类卡宾加成以及简单烷化合物的衍生化合成等。

It is proved effective that deep well aeration biological treat propylene technology is used to treat propylene epoxide saponated sewage.

实践证明,深井曝气生化处理技术处理烷皂化污水是行之有效的。

Calcium ammine catalyst was prepared with metal calcium,dehydrated liquid ammonia as raw materials,nano-silica as a carrier and acetonitrile and propylene epoxide as modifiers.

采用金属钙、脱水液氨、载体纳米二化硅及改性剂乙腈与烷制备出氨钙体系催化剂。

Flame retardant vinyl ester resin using tetrabromo bisphenol A, epichlorohydrin, acrylic acid as raw materials was also synthesized, Its flame retardant property was excellent.

用四溴双酚A、烷和烯酸为原料合成了阻燃型乙烯基酯树脂，其阻燃性能良好。

Depropanization is a procedure in the separation section of ethylene production and its effect is to separate component C3 from component C4 and C4 above.

脱烷是乙烯生产过程中分离工段的一个工艺步骤,其目的是将C_3和C_4以上组分分离。

In this paper, the new chelating resin (PSIM) with a polythioether backbone bearing imidazole group is first synthesized by the reaction between polychloromethylthiirane and imidazole.

通过聚硫烷与咪唑进行高分子反应，合成了以聚硫醚为主链、侧链带有咪唑基团的螯合树脂（简称PSIM）。

Moreover, we found that N-heterocyclic carbene (NHC) could served as an efficient and novel catalyst for the reactions of aziridines with silylated nucleophiles or acid anhydrides.

随后，我们发现氮杂卡宾也可以作为一种有机小分子催化剂，分别催化各类硅试剂或酸酐对氮杂烷化合物的开。

A divided flow cell is used for electrolysis of NaBr aqueous solution.The anolyte containing Br 2 and catholyte containing NaOH are produced simultaneously and in turn to epoxide HFP to HFPO.

在由离子膜分隔的电解槽中电解溴化钠溶液,所产生的含溴阳极液和碱性阴极液,分别是由全氟烯合成全氟烷的化剂和皂化剂。