公开(公告)号：US4286099A

公开(公告)日：1981-08-25

申请号：US120811

申请日：1980-02-12

Applicant: Martin E. Nash ,  Edward E. Huxley

Inventor： Martin E. Nash ,  Edward E. Huxley

IPC: C07D333/48

CPC classification number: C07D333/48

Abstract: Prior to hydrogenation to produce sulfolane, a sulfolene feed containing sulfur-containing catalyst poisons is contacted with used and/or at least partially spent Raney nickel catalyst under conditions which substantially remove and/or render innocuous the catalyst poisons. The pretreatment removes sulfur dioxide and polymeric sulfones from the sulfolene which would otherwise contaminate and deactivate the fresh catalyst employed in the hydrogenation.

Abstract translation: 在氢化制备环丁砜之前，含有含硫催化剂毒素的环丁烯醚进料在使催化剂毒素基本上除去和/或使无害的条件下与使用和/或至少部分用过的阮内镍催化剂接触。 该预处理从环丁砜中除去二氧化硫和聚合砜，否则会污染并使在氢化中使用的新鲜催化剂失活。

公开(公告)号：US4275218A

公开(公告)日：1981-06-23

申请号：US168886

申请日：1980-07-14

Applicant: Edward E. Huxley ,  Martin E. Nash

Inventor： Edward E. Huxley ,  Martin E. Nash

IPC: C07D333/48

CPC classification number: C07D333/48

Abstract: A process for converting sulfolene compounds to sulfolane compounds comprising contacting at least one sulfolene compound with hydrogen in the presence of a metal hydrogenation catalyst and an effective amount of ammonia as an SO.sub.2 neutralizer or scavenger. The addition of ammonia increases conversion of sulfolene to sulfolane, improves product color, and reduces polymer formation during hydrogenation. In a preferred embodiment, the ammonia is admixed with the hydrogen prior to contacting with the sulfolene compound.

Abstract translation: 将环丁烯砜化合物转化为环丁砜化合物的方法，包括在金属加氢催化剂和有效量的氨作为SO 2中和剂或清除剂的存在下，使至少一种环丁烯砜化合物与氢气接触。 加入氨会使环丁砜转化成环丁砜，提高产品颜色，并减少氢化过程中聚合物的形成。 在优选的实施方案中，在与环丁烯化合物接触之前将氨与氢混合。

公开(公告)号：US4355183A

公开(公告)日：1982-10-19

申请号：US64967

申请日：1979-08-08

Applicant: Martin E. Nash ,  Edward E. Huxley

Inventor： Martin E. Nash ,  Edward E. Huxley

IPC: C07C149/18

CPC classification number: C07C319/26

Abstract: Inhibition of the formation of color bodies and color-forming materials and other contaminants and/or decolorization of discolored sulfur-containing organic compounds containing divalent sulfur by addition of a small amount of oxalic acid.

Abstract translation: 通过加入少量草酸抑制着色体和成色材料等污染物的形成和/或含有二价硫的变色的含硫有机化合物的脱色。

公开(公告)号：US4348214A

公开(公告)日：1982-09-07

申请号：US249547

申请日：1981-03-31

Applicant: Bruce W. Gordon ,  Edward E. Huxley

Inventor： Bruce W. Gordon ,  Edward E. Huxley

IPC: B01D53/14 ,  C07C7/11 ,  B01D19/00

CPC classification number: B01D53/1493 ,  C07C7/11

Abstract: Sulfur-containing esters, such as dimethyldithiodipropionate, are excellent solvents for hydrogen sulfide and can be used for the purification of gas streams containing hydrogen sulfide. The obtained solution can be stored and used as H.sub.2 S source.

Abstract translation: 含硫酯如二甲基二硫代二丙酸酯是硫化氢的优异溶剂，可用于净化含有硫化氢的气流。 获得的溶液可以作为H2S源储存和使用。