公开(公告)号：US4149993A

公开(公告)日：1979-04-17

申请号：US883770

申请日：1978-03-06

Applicant: Babu Y. Rao ,  John T. Nolan, Jr. ,  John H. Estes

Inventor： Babu Y. Rao ,  John T. Nolan, Jr. ,  John H. Estes

IPC: B01J23/38 ,  B01J37/08 ,  B01J37/24 ,  C07C5/27 ,  B01J27/10

CPC classification number: B01J37/24 ,  B01J23/38 ,  B01J37/08 ,  C07C5/2791

Abstract: A process for the hydroisomerization of paraffinic hydrocarbons employing a catalyst composed of a noble metal, alumina and chlorine. The catalyst is prepared by treating a composite of noble metal and alumina with an aluminum compound such as an inorganic or organic salt of aluminum, preferably aluminum nitrate, calcining the treated composite and thereafter contacting the treated composite with a conventional chloride activating agent. By treating and calcining the composite with an aluminum salt, the amount of noble metal retained on the catalyst's surface during chloride activation is maximized enabling high conversions of normal paraffins to isoparaffins to be realized.

Abstract translation: 使用由贵金属，氧化铝和氯构成的催化剂对链烷烃进行加氢异构化的方法。 通过用铝化合物如铝的无机或有机盐，优选硝酸铝处理贵金属和氧化铝的复合物，煅烧所述经处理的复合材料，然后使经处理的复合材料与常规氯化物活化剂接触来制备催化剂。 通过用铝盐处理和煅烧复合材料，在氯化物活化期间保留在催化剂表面上的贵金属的量最大化，使得能够实现正链烷烃到异链烷烃的高转化率。

公开(公告)号：US4113789A

公开(公告)日：1978-09-12

申请号：US774099

申请日：1977-03-03

Applicant: Babu Y. Rao ,  John T. Nolan, Jr. ,  John H. Estes

Inventor： Babu Y. Rao ,  John T. Nolan, Jr. ,  John H. Estes

IPC: B01J23/38 ,  B01J37/08 ,  B01J37/24 ,  C07C5/27 ,  C07C5/30

CPC classification number: B01J37/24 ,  B01J23/38 ,  B01J37/08 ,  C07C5/2791

Abstract: A process for the hydroisomerization of paraffinic hydrocarbons employing a catalyst composed of a noble metal, alumina and chlorine. The catalyst is prepared by treating a composite of noble metal and alumina with an aluminum compound such as an inorganic or organic salt of aluminum, preferably aluminum nitrate, calcining the treated composite and thereafter contacting the treated composite with a conventional chloride activating agent. By treating and calcining the composite with an aluminum salt, the amount of noble metal retained on the catalyst's surface during chloride activation is maximized enabling high conversions of normal paraffins to isoparaffins to be realized.

Abstract translation: 使用由贵金属，氧化铝和氯构成的催化剂对链烷烃进行加氢异构化的方法。 通过用铝化合物如铝的无机或有机盐，优选硝酸铝处理贵金属和氧化铝的复合物，煅烧所述经处理的复合材料，然后使经处理的复合材料与常规氯化物活化剂接触来制备催化剂。 通过用铝盐处理和煅烧复合材料，在氯化物活化期间保留在催化剂表面上的贵金属的量最大化，使得能够实现正链烷烃到异链烷烃的高转化率。

公开(公告)号：US4144138A

公开(公告)日：1979-03-13

申请号：US870406

申请日：1978-01-18

Applicant: Babu Y. Rao ,  Sheldon Herbstman ,  Michael D. Riordan

Inventor： Babu Y. Rao ,  Sheldon Herbstman ,  Michael D. Riordan

IPC: C07C41/34 ,  C07C41/00 ,  C07C41/42 ,  C07C43/04 ,  C07C67/00 ,  C07C41/12 ,  B01D3/36

CPC classification number: C07C41/42 ,  Y10S203/20

Abstract: Methyl tertiary butyl ether may be recovered from etherification reaction effluent by azeotropic distillation to recover methanol-ether azeotrope overhead which is water-washed to give pure ether raffinate plus ether-methanol bottoms, the latter being azeotropically distilled to yield ether-methanol overhead which is recycled to water-washing.

Abstract translation: 可以通过共沸蒸馏从醚化反应流出物中回收甲基叔丁基醚，以回收甲醇 - 醚共沸物塔顶馏出物，其水洗以得到纯醚萃余液和乙醚 - 甲醇塔底馏分，后者共沸蒸馏以产生醚 - 甲醇开销， 回收水洗。