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、丁基醚环氧乙。

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

(1)三取环和含氟炔酮;(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_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,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.

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.

脱丙烷乙烯生产过程中分离工段的一个工艺步骤,其目的将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。

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基酸衍生的亲环烷基、类卡宾加成以及简单环丙烷合的衍生合成等。

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

实践证明,深井曝气生处理技术处理环氧丙烷皂污水是行之有效的。

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、纳米二氧硅及改性剂乙腈与环氧丙烷制备出钙系催剂。

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剂，分别催各类硅试剂或酸酐对氮杂环丙烷合的开环。

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剂和皂剂。

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...

增加丙烷脱溶剂比,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亲环烷基化、类卡宾加成以及简单环丙烷化合物衍生化合成等。

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。

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.

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.

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一个工艺步骤,其目是将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.

在由离子膜分隔电解槽中电解溴化钠溶液,所产生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,环氧氯丙的大于环氧丙、丁基醚环氧。

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

(1)三取代环丙氟炔酮;(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...

增加丙脱沥青的溶比,用加氢补充精制代替白土精制等,此外,在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丙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腈与环氧丙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、环氧氯丙丙烯酸为原料合成了阻燃型烯基酯树脂，其阻燃能良好。

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.

通过聚环硫氯丙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丙化合物的开环。

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,所产生的溴阳极液碱阴极液,分别是由全氟丙烯合成全氟环氧丙的环氧化皂化。

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,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。

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,此外,在含硫生产基础时,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.

制备方法包括简单氨基酸衍生物的亲环烷基化、类卡宾加以及简单环丙烷化物的衍生化。

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料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.

通过聚环硫氯丙烷与咪唑进行高分子反应，了以聚硫醚为主链、侧链带有咪唑基团的螯树脂（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氮杂环丙烷化物的开环。

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、类卡宾加以及简单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燃型乙烯基酯树脂，其燃性能良好。

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.

通过聚环硫氯丙烷与咪唑进行高分子反应，合以聚硫醚为主链、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,环氯丙烷的大于环丙烷、丁基醚环乙烷。

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;(2)酯和酰物。

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衍生物的亲环烷基、类卡宾加成以及简单环丙烷合物的衍生合成等。

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

实践证明,深井曝气生处理技术处理环丙烷皂污水是行之有效的。

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、载体纳米二及改性剂乙腈与环丙烷制备出氨钙体系催剂。

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、环氯丙烷和丙烯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剂，分别催各类试剂或酐对氮杂环丙烷合物的开环。

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丙烷的环剂和皂剂。