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公开(公告)号:DE2631695C2
公开(公告)日:1983-05-19
申请号:DE2631695
申请日:1976-07-14
Applicant: SNAMPROGETTI S.P.A., 20121 MILANO, IT
Inventor: CANELLA, MARCO , SODINI, GIANCARLO, ROMA, IT
Abstract: A method is disclosed for extracting mycotoxins from vegetable flours, wherein an organic solvent containing at least one polar group is used conjointly with an aqueous solution of an electrolyte.
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92.
公开(公告)号:ES268061U
公开(公告)日:1983-05-01
申请号:ES268061
申请日:1981-06-02
Applicant: SNAMPROGETTI S.P.A.
IPC: B05B1/06 , B01D1/06 , B01D1/22 , B05B1/34 , B67D3/00 , B67D7/02 , B67D99/00 , F17D1/00 , F17D1/08 , F28D3/04 , F28D5/02 , F28F9/22
Abstract: Dispositivo para la distribución de líquido en forma de película en el interior de tubos verticales, con flujo líquido-vapor en contracorriente o en equicorriente, provisto de una brida a modo de corona circular en su extremidad superior, de una cavidad circular practicada en su base inferior, y de acanaladuras helicoidales en su superficie externa, caracterizado porque dicho cuerpo cilíndrico macizo comprenden un cuerpo cilíndrico macizo está dotado de una conicidad hacia abajo de 1-2 grados y es introducible en los tubos del intercambiador de película sin fondo alguno.
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公开(公告)号:DE2411496C2
公开(公告)日:1982-09-16
申请号:DE2411496
申请日:1974-03-11
Applicant: SNAMPROGETTI S.P.A., MILANO, IT
Abstract: A liquid polymer having a very high viscosity of between 250 cSt and 15,000 cSt at 210 DEG F, is prepared by polymerizing one, or a mixture of more than one, n-alpha olefine represented by the formula R - CH = CH2, in which R is an alkyl radical containing from 6 to 8 carbon atoms, in the presence of a catalyst system formed at a temperature in the range of 0 DEG -150 DEG C by a catalyst consisting of TiCl4 and a polyiminoalane having the formula: --Al---N-- ¦¦ HR n IN WHICH N IS A WHOLE NUMBER NOT GREATER THAN 50 AND R is an isopropyl radical, and in an atmosphere consisting essentially of an inert gas. The liquid polymer of very high viscosity so formed is useful as a lubricant.
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公开(公告)号:DE2310014C2
公开(公告)日:1982-08-26
申请号:DE2310014
申请日:1973-02-28
Applicant: SNAMPROGETTI S.P.A., MILANO, IT
Inventor: RIVOLA, LUIGI , NOTARI, BRUNO, SAN DONATO MILANESE, IT
Abstract: Aluminum chlorohydroxide represented by the formula: Al2(OH)x Cly, wherein x and y range from 1 to 3.5 and 5 to 2.5, respectively, is produced by reacting aluminum oxide or hydroxide with an amount of hydrochloric acid which is (1/2.5) to (1/4) of the stoichiometric amount for obtaining aluminum trichloride, at a temperature in the range from 100 DEG C to 160 DEG C, and at a pressure in the range from 0.1 kg/cm2 to 4 kg/cm2 for a period of from 2 to 10 hours.
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公开(公告)号:DE2521479C3
公开(公告)日:1982-03-04
申请号:DE2521479
申请日:1975-05-14
Applicant: SNAMPROGETTI S.P.A., MILANO, IT
IPC: C07D301/00 , C07D303/16 , C07D303/48
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公开(公告)号:DE2334521C3
公开(公告)日:1981-11-19
申请号:DE2334521
申请日:1973-07-06
Applicant: SNAMPROGETTI S.P.A., MILANO, IT
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公开(公告)号:DE2451850B2
公开(公告)日:1981-05-21
申请号:DE2451850
申请日:1974-10-31
Applicant: SNAMPROGETTI S.P.A., MILANO, IT
Inventor: BUONOMO, FRANCO, DR. , FATTORE, VITTORIO, DR. , NOTARI, BRUNO, DR., SAN DONATO, MILANESE, IT
IPC: C04B35/622 , B01J21/06 , B01J21/12 , B01J35/02 , B01J37/00 , B01J37/03 , B01J37/14 , C01F7/02 , C01F11/46 , C04B41/85
Abstract: The mechanical and thermal properties of aluminum oxide, such as gamma alumina, adapted for use as a catalyst or catalyst carrier are improved through a treatment thereof with a silicon compound such as an alkyl orthosilicate in which the aluminum oxide is impregnated with the silicon compound or a solution thereof in a compatible organic solvent whose boiling point is lower than the boiling point of the silicon compound. The impregnated aluminum oxide is dried at a temperature in the range from above the boiling point of the silicon compound to 500 DEG C and is then subjected to controlled oxidation.
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公开(公告)号:DE2840066B2
公开(公告)日:1981-03-19
申请号:DE2840066
申请日:1978-09-14
Applicant: SNAMPROGETTI S.P.A., MILANO, IT
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公开(公告)号:DE2534544B2
公开(公告)日:1981-03-12
申请号:DE2534544
申请日:1975-08-01
Applicant: SNAMPROGETTI S.P.A., MILANO, IT
IPC: B01J21/00 , B01J21/12 , B01J31/00 , B01J31/02 , B01J37/02 , C07B61/00 , C07C1/00 , C07C1/20 , C07C11/02 , C07C13/02 , C07C67/00 , C07C11/09 , C07C31/04 , B01J21/04
Abstract: A method is disclosed for preparing tertiary olefins starting from the corresponding tertiary ethers, the improvement consisting in contacting the ether with a catalyst composed by active alumina modified by reaction with a silicon compound selected among those corresponding to the general formula: wherein X,Y,Z and W can be -R, -OR, -Cl, -Br, -SiH3 , -COOR, -SihnOm, R being hydrogen, an alkyl, cycloalkyl, aryl, aralkyl or alkyl-cycloalkyl radical of from 1 to 30 carbon atoms, n and m being integers comprised between 1 and 3. The advantages afforded by the invention are mainly the nearly quantitative yields and the high purity of the end products.
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公开(公告)号:DK142233C
公开(公告)日:1981-03-02
申请号:DK350975
申请日:1975-08-01
Applicant: SNAMPROGETTI S.P.A.
IPC: B01J21/00 , B01J21/12 , B01J31/00 , B01J31/02 , B01J37/02 , C07B61/00 , C07C1/00 , C07C1/20 , C07C11/02 , C07C13/02 , C07C67/00
Abstract: A method is disclosed for preparing tertiary olefins starting from the corresponding tertiary ethers, the improvement consisting in contacting the ether with a catalyst composed by active alumina modified by reaction with a silicon compound selected among those corresponding to the general formula: wherein X,Y,Z and W can be -R, -OR, -Cl, -Br, -SiH3 , -COOR, -SihnOm, R being hydrogen, an alkyl, cycloalkyl, aryl, aralkyl or alkyl-cycloalkyl radical of from 1 to 30 carbon atoms, n and m being integers comprised between 1 and 3. The advantages afforded by the invention are mainly the nearly quantitative yields and the high purity of the end products.
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