公开(公告)号：DE2552318C3

公开(公告)日：1978-05-24

申请号：DE2552318

申请日：1975-11-21

Applicant: SNAMPROGETTI S.P.A., MAILAND (ITALIEN)

Inventor： FATTORE, VITTORIO ,  MANARA, GIOVANNI ,  NOTARI, BRUNO

IPC: C07C43/04 ,  B01J21/00 ,  B01J21/12 ,  C07B61/00 ,  C07C41/00 ,  C07C41/09 ,  C07C67/00

公开(公告)号：DK135796C

公开(公告)日：1977-11-28

申请号：DK222275

申请日：1975-05-20

Applicant: SNAMPROGETTI S.P.A.

Inventor： ANCILLOTTI F ,  ORIANI G ,  PESCAROLLO E

IPC: C07C43/04 ,  C07C41/00 ,  C07C41/05 ,  C07C41/06 ,  C07C67/00

公开(公告)号：DE7217761U

公开(公告)日：1977-04-28

申请号：DE7217761

申请日：1972-05-10

Applicant: SNAMPROGETTI S.P.A., MAILAND (ITALIEN)

IPC: B60P3/14 ,  B61B13/10 ,  B62D1/26 ,  B62D11/24 ,  B62D55/26 ,  B60B19/00

Abstract: The present invention relates to a self-adjusting carriage device which is able to move along curved profile paths such as pipelines and the like, effecting various operations including the inspection, cleaning and varnishing of a pipe, and comprising a self-adjusting guide system, and thereby always able to maintain a rectilinear path along a pipeline or other curved profile path.

公开(公告)号：DE2023495B2

公开(公告)日：1975-11-27

申请号：DE2023495

申请日：1970-05-13

Applicant: SNAMPROGETTI S.P.A., MAILAND (ITALIEN)

Inventor： FACCHINI, ALESSANDRO, SAN DONATO MILANESE (ITALIEN)

IPC: B65G53/30

Abstract: Finely divided particles of a brittle solid are transported by dispersing them in a transport liquid of lower density in a dispersion chamber and by feeding a series of aliquots of the dispersion from the dispersion chamber to a vessel, equipped with inlet and outlet ducts which are respectively provided with automatic control valves, when the several aliquots are subjected to increased pressure and whence the dispersed particles are expelled for transport through the outlet duct.

公开(公告)号：DE2338064B2

公开(公告)日：1975-11-20

申请号：DE2338064

申请日：1973-07-26

Applicant: SNAMPROGETTI S.P.A., MAILAND (ITALIEN)

Inventor： CESCO, SILVANO ,  CORSINI, PASQUALE ,  COGNIGNI, FRANCO, CESANO MADERNO

IPC: D01F8/08 ,  D02G1/20 ,  D02J1/22

公开(公告)号：DE2338078B2

公开(公告)日：1975-08-28

申请号：DE2338078

申请日：1973-07-26

Applicant: SNAMPROGETTI S.P.A., MAILAND (ITALIEN)

Inventor： MORELLI, MORELLO, DR.-CHEM., SAN DONATO MILANESE ,  MARCO, FORTUNATO DE, MAILAND (ITALIEN)

IPC: B01J23/00 ,  B01J31/00 ,  C07B61/00 ,  C07C1/00 ,  C07C5/05 ,  C07C11/02 ,  C07C13/12 ,  C07C67/00 ,  C07C5/06 ,  C07C13/02

Abstract: A process is described whereby a diolefin is selectively hydrogenated to an olefin in the presence of a palladium base catalyst by adding to the reaction mixture an aqueous solution of a zinc salt such as zinc acetate wherein the ratio of water/zinc is at least 1/1 by weight.

公开(公告)号：ES2046456T3

公开(公告)日：1994-02-01

申请号：ES89203255

申请日：1989-12-20

Applicant: SNAMPROGETTI S.P.A.

Inventor： MARCHIONNA, MARIO ,  LAMI, MASSIMO ,  ANCILLOTTI, FRANCESCO

IPC: C07C29/15 ,  C07C29/154 ,  C07C31/04

Abstract: A process for producing methanol from synthesis gas in the liquid phase is disclosed, which comprises reacting CO with H2 in the presence of a catalytic system constituted by one or more copper compound(s) and one or more alkali metal and/or alkali-earth metal alkoxide(s), in the presence of one or more solvent(s), the basic features of which are in that to the reaction methanol and one or more alkyl formate(s) are added, with the process being carried out with a concentration of the catalytic system in the solution constituted by the solvents and the same catalytic system, which is comprised within the range of from 0.001 to 1 molar for the compound(s) of copper, and is comprised within the range of from 0,01 to 5 molar for the alkali metal and/or alkali-earth metal alkoxide(s), and at a temperature higher than 40 DEG C, and lower than 200 DEG C.

公开(公告)号：ES2041305T3

公开(公告)日：1993-11-16

申请号：ES88202832

申请日：1988-12-09

Applicant: ENIRICERCHE S.P.A. ,  SNAMPROGETTI S.P.A.

Inventor： PREVEDELLO, ALDO ,  ROMANO, GOFFREDO

IPC: E21B33/14 ,  C04B24/16 ,  C04B24/20 ,  C04B28/04 ,  C09K8/46 ,  C09K8/467 ,  E21B33/13 ,  E21B33/138

Abstract: A low-viscosity cement composition, useful for use in the sector of oil drilling, contains cement, water and an additive obtained by salifying, into the alkali-metal, alkali-earth metal, or ammonium, salts, the sulphonated and oxidated products deriving from the reaction between sulphur trioxide and cokery tar, or fuel oil from steam cracking. Such a cement composition is endowed with improved rheological characteristics, and, in particular, with a low viscosity value, without any substantial changes in the pumping times, even at high temperatures and pressures.

公开(公告)号：DE3319171C2

公开(公告)日：1989-01-26

申请号：DE3319171

申请日：1983-05-26

Applicant: SNAMPROGETTI S.P.A., MAILAND/MILANO, IT

Inventor： FORLANI, ORFEO, MAILAND/MILANO, IT ,  ANCILLOTTI, FRANCESCO ,  NOTARI, BRUNO, SAN DONATO MILANESE, MAILAND/MILANO, IT

IPC: C07C2/08 ,  B01J23/00 ,  B01J23/02 ,  B01J23/08 ,  B01J23/10 ,  B01J23/74 ,  C07B61/00 ,  C07C1/00 ,  C07C5/25 ,  C07C11/02 ,  C07C11/08 ,  C07C67/00

Abstract: A process for olefin bond isomerization by means of a gamma alumina-based catalyst containing SiO2 and oxides of a metal chosen from those of Group II A and/or VIII and/or III B and/or Lanthanides, with particular molar ratios between the various oxides. The catalyst is thermally stable, and in the conversion of butene-2 to butene-1 enables butene-1 to be obtained with an isobutene content below the allowable limits for butene-1 grade polymerization.

公开(公告)号：DE3514250C2

公开(公告)日：1988-12-22

申请号：DE3514250

申请日：1985-04-19

Applicant: SNAMPROGETTI S.P.A., MAILAND/MILANO, IT

Inventor： MENICATTI, SERGIO, MAILAND/MILANO, IT ,  MIOLA, CESARE, S. DONATO MILANESE, MAILAND/MILANO, IT ,  GRANELLI, FRANCO, MAILAND/MILANO, IT

IPC: B01J19/02 ,  B01J19/24 ,  C07C67/00 ,  C07C239/00 ,  C07C273/04 ,  F28F19/06 ,  C07C126/02 ,  F16L9/18