氯化乙烯

Thirdly,in the view of some different results between the reaction of complexes(2)、(3)and[(Me_3Si)_2N]_3LnLi_3 with aromatic aldehydes, the reaction of 2 equiv of aromatic aldehydes with 1 equiv of lithium amide(1) catalyzed by the YCl_3 was subsequently studied,and better yields of the corresponding amides and alcohols can be isolated.These results indicated that the enolate ligand in complexes(2)、(3)may have impact on the Cannizzaro disproportionation reaction.

第三，鉴于上述配合物2、3和[(Me_3Si_2)2_N]_3LnLi_3与芳香醛反应结果上的一些差别，我们又以三氯化钇为催化剂，将两当量的芳香醛与一当量化合物1的锂盐直接进行反应，结果以较好的产率得到了相应的酰胺和醇，这说明配合物2、3中所含的乙烯醇基可能对此Cannizzaro-型歧化反应存在一定的影响。

The coating composition comprises, in a specific proportion, a vehicle ingredient comprising in a specific proportion an oligomer having at least twoacrylate groups and an ethylenic monomer copolymerizable with the oligomer, aacrylic-modified chlorinated polyolefin having a specific chlorine content, an organic peroxide polymerization initiator, and a polyisocyanate compound.

该涂料组合物含有特定比例的由至少具有两个丙烯酸酯基的低聚物和可与该低聚物共聚的乙烯性不饱和单体形成的媒介物成分、特定氯含率的丙烯酰基改性氯化聚烯烃、有机过氧化物聚合引发剂、和聚异氰酸酯化合物。

Progress in researches on catalysts for fluidized bed oxychlorination of ethylene to make dichloroethane;2. The catalytic performance of CuCl2-KCl/MgO-Al2O3 catalysts was evaluated for the oxychlorination of ethane to produce vinyl chlorid.

采用浸渍法制备了不同含量MgO改性的γ-Al2O3，采用X射线衍射、N2物理吸附、NH3的程序升温脱附和程序升温还原等手段表征了催化剂的结构、表面酸性和氧化还原性质，并对CuCl2-KCl/MgO-Al2O3催化剂催化乙烷氧氯化制氯乙烯反应进行了活性评价。

Including high temperature for the pyrolysis of natural gas to produce carbon black and acetylene; steam reforming of natural gas or partial oxidation of natural gas, synthetic gas can be obtained; natural gas through chlorination, sulfide, nitrification, ammoniated oxide, oxidation can be obtained A N all kinds of derivatives; in the wet gas ethane, propane, butane and natural gas liquid condensate, and so on, the steam cracker or pyrolysis to produce ethylene, propylene and butadiene; dehydrogenation of butane oxidation or produce small Diene or acetic acid, methyl ethyl ketone, and maleic anhydride, and so on.

包括在高温下进行的天然气热裂解，主要生产乙炔和炭黑；天然气蒸汽转化或天然气的部分氧化，可制得合成气；天然气经过氯化、硫化、硝化、氨化氧化、氧化可制得甲烷的各种衍生物；湿性天然气中的乙烷、丙烷、丁烷和天然气凝析液等，经蒸汽裂解或热裂解可生产乙烯、丙烯和丁二烯；丁烷脱氢或氧化可生产丁二烯或醋酸、甲基乙基酮、顺丁烯二酸酐等。

The development status of technology of dichloroethane by ethylene chlorinated process were introduced.

介绍了乙烯直接氯化到二氯乙烷的技术进展情况，对比了液相法中的低温、中温、高温的技术特点。

Chlorine atoms were selectively introduced into the chlorin ring based on different reactivity between vinyl group at 3-position and 20-meso position by electrophilic addition and electrophilic substitution using hydrogen peroxide/hydrochloric acid, N-chlorosuccinimide, hydrogen chloride (or concentrated hydrochloric acid) as chlorinating reagent.

以过氧化氢/盐酸、N-氯代丁二酰亚胺、氯化氢为氯化剂，根据3-乙烯基和20-meso-位的不同化学反应活性，通过亲电加成和亲电取代反应，在二氢卟吩环上选择性地引进氯原子，完成8种未见报道的具有叶绿素-a基本碳架的氯代二氢卟吩衍生物的合成。

Effects from high-temperature and low-temperature direct chlorination on refining, energy saving and economics of ethylene chloride in chloroethylene production revamping are analyzed.

分析了高温、低温直接氯化技术对氯乙烯改造中二氯乙烷的精制、节能、技术经济等方面的影响。

The new moulded foot valve screens are available in PVC CPVC PP and PVDF ensuring that the entire assembly is of like material and capable of handling the intended media.

新的成型底阀，可在屏幕聚氯乙烯，氯化聚氯乙烯，聚丙烯和聚偏氟乙烯，确保整个装配类材料和媒体处理能力的目的。

Industrial coatings are colored ACID, amino, nitro, alkyd, a vinyl chloride, such as epoxy primer, Ciqi, hammer paint, paint orange-shaped, metal flashlight paint, paint road lines such as midrange products; Lacquer coating for the vehicle, ship paint, paint bridges, electrical insulation paint, and so on; special coating that HCPE high-chlorinated polyethylene special rust paint and rust-proof, anti-corrosion series of high temperature silicone paint; decorative paint a high-polyester, dumb Light-finish, Seqi, crystal floor paint, primers, and other ancillary products transparent and within the external walls of the High ACID latex paint products.

工业涂料有各色丙稀酸、氨基、硝基、醇酸、过氯乙烯、环氧等底漆、磁漆、锤纹漆、桔形漆、金属闪光漆、道路划线漆等高中档产品；专用涂料有汽车漆、船舶漆、桥梁漆、电工绝缘漆等；特种涂料有HCPE高氯化聚乙烯特种带锈防锈防腐系列漆和有机硅耐高温漆；装饰涂料有聚酯高光、哑光清面漆、色漆、水晶地板漆、透明底漆等配套产品和丙稀酸高级内外墙乳胶漆系列产品。

PTFE referred to F4, because of its excellent dielectric properties and corrosion-resistant chemical (high temperature of the molten fluoride elements and the state of alkali metal), non-absorbent, non-stick, not conductive, low coefficient of friction and not Ageing properties, and is widely used in chemical, petroleum, textile pharmaceutical, metallurgy, machinery, electronics, electrical appliances, electricity, food and aviation, military and scientific research in all walks of life, I plant the development of metal bellows, compensation , PTFE bellows F4 tetrafluoroethane compensator, F4 metal composite compensation, anti-corrosion steel liner tetrafluoroethane pipe, steel-lined tetrafluoroethane three links, elbow, Stone, the reaction tower, tower chloride, lining tetrafluoroethane valve Doors, tetrafluoroethane pads and steel-lined polypropylene pipes and accessories, and earnestly solve the user in the production process by the various anti-corrosion problems.

聚四氟乙烯简称F4，由于其优异的介电性能与耐化学腐蚀性(高温下的氟元素和熔融状态下的碱金属外)，不吸水、不粘、不导电、摩擦系数低及不老化等性能，而被广泛应用于化工、石油、轻纺制药、冶金、机械、电子、电器、电力、食品及航空、军用与科研等各行各业中，我厂开发的金属波纹管、补偿器，四氟波纹管F4四氟补偿器、F4金属复合补偿器，钢衬四氟防腐管件，钢衬四氟三通、弯头、四通、反应塔、氯化塔、衬四氟阀门，四氟垫片以及钢衬聚丙稀管道及配件，切实解决了用户在生产过程中所遇到的各种防腐问题。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新