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    Two-stage etherification of tertiary butyl alcohol using second stage zeolite catalysts for the intermediate preparation of isobutylene
    1.
    发明授权
    Two-stage etherification of tertiary butyl alcohol using second stage zeolite catalysts for the intermediate preparation of isobutylene 失效
    使用第二阶段沸石催化剂对二丁基二醇进行二阶段醚化，用于中间体制备异丁烯

    公开(公告)号：US5856588A

    公开(公告)日：1999-01-05

    申请号：US774339

    申请日：1996-12-30

    申请人： Pei-Shing Eugene Dai ,  John Frederick Knifton

    发明人： Pei-Shing Eugene Dai ,  John Frederick Knifton

    IPC分类号： B01J29/00 ,  B01J29/08 ,  B01J29/85 ,  B01J37/26 ,  C07B61/00 ,  C07C41/09 ,  C07C43/04 ,  C07C41/00

    CPC分类号： B01J29/005 ,  B01J29/084 ,  B01J29/85 ,  C07C41/09 ,  C07C41/42 ,  Y10S977/775 ,  Y10S977/896

    摘要： Methyl tertiary butyl ether is prepared from tertiary butyl alcohol and methanol in a plural stage process by (a) reacting tertiary butyl alcohol with methanol in a primary MTBE reaction zone containing a cationic ion-exchange resin catalyst to form a primary reaction product, (b) fractionating the primary reaction product in a primary distillation zone to provide a first lighter, lower boiling distillation fraction comprising isobutylene, methanol and methyl tertiary butyl ether and a first heavier, higher boiling distillation fraction comprising methanol, tertiary butyl alcohol and water, c) contacting the first heavier distillation fraction in a second stage reactor containing a second stage acidic, fluoride-treated Y-zeolite having a silica:alumina ratio of 100:1 to 10:1 and a unit cell size of from 24.20 to 24.45 .ANG. or a fluoride-treated silicoaluminophosphate (SAPO) molecular sieve having a pore size of from 5 .ANG. to 8 .ANG., under conversion conditions including a temperature of from 20.degree. to 300.degree. C. and a pressure of from 0 to 1000 psig to form a second stage reaction product rich in isobutylene and also containing methyl tertiary butyl ether; and (d) converting the isobutylene to additional methyl tertiary butyl ether.

    摘要翻译： （a）在含有阳离子离子交换树脂催化剂的初级MTBE反应区中使叔丁醇与甲醇反应形成初级反应产物（b），由叔丁醇和甲醇在多级方法中制备甲基叔丁基醚 ）在一级蒸馏区中分馏初级反应产物以提供包含异丁烯，甲醇和甲基叔丁基醚的第一种较轻的低沸点馏分和包含甲醇，叔丁醇和水的第一较重较高沸点馏分，c） 在第二级反应器中接触第一较重蒸馏馏分，该第二级反应器含有二氧化硅：氧化铝比为100:1至10:1的第二阶段酸性，氟化物处理的Y-沸石，以及单位晶胞尺寸为24.20至24.45ng / 氟化物处理的硅铝磷酸盐（SAPO）分子筛，其孔径为5至8安培姆，转化条件包括 温度为20-300℃，压力为0-1000psig，形成富含异丁烯并含甲基叔丁基醚的第二阶段反应产物; 和（d）将异丁烯转化成另外的甲基叔丁基醚。

    Method for the purification of tertiary butyl alcohol for use in the manufacture of methyl tertiary butyl ether
    2.
    发明授权
    Method for the purification of tertiary butyl alcohol for use in the manufacture of methyl tertiary butyl ether 失效
    纯化用于制备甲基叔丁基醚的叔丁醇的方法

    公开(公告)号：US5792890A

    公开(公告)日：1998-08-11

    申请号：US792033

    申请日：1997-02-03

    申请人： Pei-Shing Eugene Dai ,  Laurence Darrel Neff ,  Kyle Lee Preston ,  Rei-Yu Judy Hwan ,  John Frederick Knifton

    发明人： Pei-Shing Eugene Dai ,  Laurence Darrel Neff ,  Kyle Lee Preston ,  Rei-Yu Judy Hwan ,  John Frederick Knifton

    IPC分类号： C07C29/88 ,  C07C41/06 ,  C07C41/09

    CPC分类号： C07C41/09 ,  C07C29/88 ,  C07C41/06

    摘要： A tertiary butyl alcohol charge stock contaminated with from about 0.5 to about 2 wt. % of corrosive oxygen-containing impurities, including peroxides and formates, is passed through an oxygenates decomposition reactor containing a bed of a basic zeolite catalyst to decompose the peroxides and oxygen-containing impurities, including peroxides and formates, and to dehydrate a portion of the tertiary butyl alcohol to form isobutylene and water to form a substantially less-corrosive tertiary butyl alcohol feedstock that is substantially free from oxygen-containing impurities, including formates that is suitable for reaction with methanol in a methyl tertiary butyl ether etherification reactor to form a methyl tertiary butyl ether etherification reaction product from which methyl tertiary butyl ether can be recovered.

    摘要翻译： 叔丁醇装料被约0.5至约2wt。 含有过氧化物和甲酸盐的含腐蚀性含氧杂质的％通过含有碱性沸石催化剂床的含氧化合物分解反应器，以分解过氧化物和含氧杂质，包括过氧化物和甲酸盐，并使部分 叔丁醇形成异丁烯和水，以形成基本上不含氧的杂质的基本上较低腐蚀性的叔丁醇原料，包括适用于在甲基叔丁基醚醚化反应器中与甲醇反应形成甲基 可以回收甲基叔丁基醚的叔丁基醚醚化反应产物。

    One step process for preparing a 1,3-diol
    6.
    发明授权
    One step process for preparing a 1,3-diol 失效
    一步法制备1,3-二醇

    公开(公告)号：US06545190B2

    公开(公告)日：2003-04-08

    申请号：US09963068

    申请日：2001-09-25

    申请人： Kevin Dale Allen ,  Joseph Broun Powell ,  Paul Richard Weider ,  John Frederick Knifton

    发明人： Kevin Dale Allen ,  Joseph Broun Powell ,  Paul Richard Weider ,  John Frederick Knifton

    IPC分类号： C07C2700

    CPC分类号： C07C29/16 ,  Y02P20/582 ,  Y02P20/584 ,  C07C31/205

    摘要： Disclosed is a one step hydroformylation process for preparing a 1,3-diol, comprising the reaction of an oxirane with syngas at hydroformylation conditions in an inert solvent in the presence of a hydroformylation catalyst comprising a ruthenium (+1)-phosphine bidentate: cobalt (−1) complex, wherein the ligated metal is ruthenium, under conditions which preferably upon completion of the oxirane/syngas reaction cause a phase separation of the reaction mixture into a solvent phase which is rich in catalyst and a second phase which is rich in the 1,3-diol, recycling the phase rich in catalyst directly to the hydroformylation reaction for further reaction with previously unreacted starting materials, thus permitting valuable hydroformylation catalyst to be recycled without degradation or exposure to downstream processing and recovering the 1,3-diol from the second phase rich in 1,3-diol.

    摘要翻译： 公开了一种用于制备1,3-二醇的一步加氢甲酰化方法，其包括在加氢甲酰化条件下，在惰性溶剂中，在加氢甲酰化催化剂存在下，环氧乙烷与合成气的反应，所述加氢甲酰化催化剂包含钌（+1） - 膦二齿：钴 （-1）络合物，其中连接的金属是钌，在优选在完成环氧乙烷/合成气反应的条件下，使反应混合物相分离成富含催化剂的溶剂相和富含 该1,3-二醇将富含催化剂的相直接再循环到加氢甲酰化反应中以进一步与先前未反应的起始原料反应，从而允许有价值的加氢甲酰化催化剂再循环而不降解或暴露于下游加工并回收1,3-二醇 从第二阶段富含1,3-二醇。

    Reduction of the viscosity of reactive heavy byproducts during the production of 1,3-propanediol
    9.
    发明授权
    Reduction of the viscosity of reactive heavy byproducts during the production of 1,3-propanediol 失效
    在1,3-丙二醇生产过程中降低反应性重副产物的粘度

    公开(公告)号：US07276634B2

    公开(公告)日：2007-10-02

    申请号：US10676682

    申请日：2003-10-01

    申请人： John Frederick Knifton ,  Talmadge Gail James ,  Paul Richard Weider ,  Joseph Broun Powell ,  Edward Lewis Nielsen ,  Glenn Charles Komplin

    发明人： John Frederick Knifton ,  Talmadge Gail James ,  Paul Richard Weider ,  Joseph Broun Powell ,  Edward Lewis Nielsen ,  Glenn Charles Komplin

    IPC分类号： C07C27/10

    CPC分类号： C07C45/58 ,  C07C29/141 ,  C07C31/205

    摘要： The present invention is an improvement upon the process for the production of 1,3-propanediol wherein an aqueous solution of 3-hydroxy propanal is formed, catalyst, if any, used in said formation is removed from the solution, sodium hydroxide is added to the solution to neutralize any acid therein such that the pH is at least about 5, the neutralized aqueous solution is subjected to hydrogenation to produce a crude 1,3-propanediol mixture which is distilled to produce 1,3-propanediol, water, and reactive heavy components. The improvement on this process comprises replacing the sodium hydroxide with a hydroxide selected from the group consisting of ammonium hydroxide, alkali metal hydroxides other than sodium hydroxide, and alkaline earth metal hydroxides to reduce the viscosity of the reactive heavy components.

    摘要翻译： 本发明是对生产1,3-丙二醇的方法的改进，其中形成3-羟基丙醛的水溶液，从该溶液中除去所述地层中使用的催化剂（如果有的话），将氢氧化钠加入 中和其中的任何酸使其pH至少约为5的溶液，中和的水溶液进行氢化以产生粗制的1,3-丙二醇混合物，其被蒸馏以产生1,3-丙二醇，水和反应性 重组件。 该方法的改进包括用选自氢氧化铵，氢氧化钠以外的碱金属氢氧化物和碱土金属氢氧化物的氢氧化物代替氢氧化钠，以降低反应性重组分的粘度。