顺-2-丁烯

顺-2-丁烯（CAS 590-18-1）：分子式 C4H8、分子量 56.11。

产品概览

应用领域

登记用途：Uses: INT FOR BUTADIENE、HEPTENES、SEC-BUTYL ALC、BUTYLENE OXIDE、PRODN OF HIGH-DENSITY POLYETHYLENE & POLYMER GASOLINES、For cis-2-butene (USEPA、OPP Pesticide Code: 606666) there are 0 labels match.、SRP: Not registered for current use in the U.S.、but approved pesticide uses may change periodically and so federal、state and local authorities must be consulted for currently approved uses.、Solvent、cross-linking agent、polymerization of gasoline、butadiene synthesis、synthesis of C4 and C5 derivatives.、CHEM INT FOR GASOLINE ALKYLATE & POLYGAS (BUTYLENES MIXT)、REFINERY FUEL (MIXT OF BUTYLENES)、For more Uses (Complete) data for cis-2-Butene (6 total)、please visit the HSDB record page.、Industry Uses: Intermediate、Fuel、Consumer Uses: Not Known or Reasonably Ascertainable、Intermediate、Methods of Manufacturing: There are two important sources for the commercial production of butylenes: catalytic or thermal cracking、and steam cracking. In these two processes、butylenes are always produced as by-products.、Butylenes、1-Butene and isobutylene cannot be economically separated into pure components by conventional distillation because they are close boiling isomers. 2-Butene can be separated from the other two isomers by simple distillation. There are four types of separation methods available: (1) selective removal of isobutylene by polymerization and separation of 1-butene、(2) use of addition reactions with alcohol、acids、or water to selectively produce pure isobutylene and 1-butene、(3) selective extraction of isobutylene with a liquid solvent、usually an acid、and (4) physical separation of isobutylene from 1-butene by absorbents.、Disproportionation or the metathesis reaction offers an opportunity to convert surplus olefins to other desirable olefins. Phillips Petroleum and Institut Francais du Petrole have pioneered this technology for the dimerization of light olefins. The original metathesis reaction of Phillips Petroleum was intended to convert propylene to 2-butene and ethylene. The reverse reaction that converts 2-butene in the presence of excess ethylene to propylene has also been demonstrated. In this process、ethylene is first dimerized to 2-butene followed by metathesis to yield propylene. Since this is a two-stage process、2-butene can be produced from the first stage、if needed. In the dimerization step、about 95% purity of 2-butene is achieved at 90% ethylene conversion.、...、A、process has emerged that consists of catalytically hydroisomerizing 1-butene to 2-butenes. In this process、trace quantities of butadienes are also hydrogenated to yield feedstocks rich in isobutylene which can then be easily separated from 2-butenes by simple distillation.、2-Butenes、For more Methods of Manufacturing (Complete) data for 2-Butene (6 total)、There are two important sources for the commercial production of butylenes: catalytic or thermal cracking、Gases containing appreciable content of cis-butene-2、along with other butene and butane hydrocarbons、are obtained by fractional distillation of refinery gas.、CATALYTIC OR THERMAL CRACKING OF PETROLEUM FEEDSTOCK、DEHYDROGENATION OF N-BUTANE、OR DISPROPORTIONATION OF PROPYLENE FOLLOWED BY SEPARATION (EG、FRACTIONAL DISTILLATION)、Formulations、Preparations: Grades: Technical 95%、CP 99%、Research 99.8%、U.S. Production: 2023: 25、000、000 - <40、000 lb、2022: 10、000 - <25、2021: 10、000 - <50、2020: 10、(1984) 3.56X10+11 g、1-Butene and 2-Butene mixed、Non-confidential 2016 Chemical Data Reporting (CDR) information on the production and use of chemicals manufactured or imported into the United States. Chemical: 2-Butene:、Table: National Aggregate Production Volume (pounds) [Table#675]、(1982) 3X10+11 G (EST、IN MIXT OF BUTYLENES)、Non-confidential 2016 Chemical Data Reporting (CDR) information on the production and use of chemicals manufactured or imported into the United States. Chemical: cis-2-Butene:、Table: National Aggregate Production Volume (pounds) [Table#5520]、Petroleum Refineries、Petrochemical Manufacturing、2-Butene: ACTIVE、2-Butene、(2Z)-: ACTIVE、Butylenes are C4H8 mono-olefin isomers: 1-butene、cis-2-butene、trans-2-butene、and isobutylene (2-methylpropene). These isomers are usually coproduced as a mixture and are commonly referred to as the C4 fraction. These C4 fractions are usually obtained as by-products from petroleum refinery and petrochemical complexes that crack petroleum fractions and natural gas liquids. Since the C4 fractions almost always contain butanes、it is also known as the B-B stream. The linear isomers are referred to as butenes.、Butenes are unsaturated olefinic hydrocarbons、C4H8、Mr 56.1080、existing in four isomers: 1) 1-butene、2) cis-2-butene、3) trans-2-butene、and 4) 2-methylpropene (isobutene). In everyday use、the IUPAC nomenclature is less common than the use of older designations. Especially the branched-chain isomer 4 is commonly referred to as "isobutene" or "isobutylene" instead of the IUPAC name "2-methylpropene". The three linear chain isomers 1、2、and 3 are usually referred to as "n-butenes" and often occur as mixtures during chemical processing. The old name "butylenes" is still in use for butenes.、can occur in trans or cis conformation、the former is the more stable form.、and isobutylene (2-methylpropene). These isomers are us。

技术档案

这个产品是什么

顺-2-丁烯 是一种化工化合物，登记 CAS 号为 590-18-1，分子式 C4H8（分子量 56.11）。

识别信息

登记 CAS 号：590-18-1

其分子式 C4H8 由 4 个碳、8 个氢 组成。

别名/同义词：顺-2-丁烯 · cis-2-butene

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PubChem 公开数据