公开(公告)号：US06479717B1

公开(公告)日：2002-11-12

申请号：US09618132

申请日：2000-07-17

Applicant: Paolo Cuzzato ,  Sergio Peron

Inventor： Paolo Cuzzato ,  Sergio Peron

IPC: C07C1908

CPC classification number: C07C17/202 ,  C07C19/08 ,  C07C19/12

Abstract: A gaseous process for eliminating chlorine atoms from a chlorofluorocarbon (CFC) of formula CnFxCly, wherein n is an integer from 1 to 3 and x+y=2n+2, wherein said compound is reacted with an hydrofluorocarbon of formula Cn′Fx′Hy′, wherein n′, x′, y′ are as above defined, in the presence of a fluorination catalyst in solid phase at temperatures in the range 200° C.-400° C.

Abstract translation: 用于从式C n F x Cly的氯氟烃（CFC）中除去氯原子的气态方法，其中n为1至3的整数，x + y = 2n + 2，其中所述化合物与式Cn'Fx'Hy的氢氟烃反应 '，其中n'，x'，y'如上所定义，在氟化催化剂存在下，在固相中的温度范围为200℃-400℃。

公开(公告)号：US5608125A

公开(公告)日：1997-03-04

申请号：US507644

申请日：1995-07-25

Applicant: Paolo Cuzzato ,  Antonio Masiero

Inventor： Paolo Cuzzato ,  Antonio Masiero

IPC: B01J27/12 ,  B01J23/26 ,  B01J27/125 ,  C07B61/00 ,  C07C17/04 ,  C07C17/10 ,  C07C17/20 ,  C07C17/21 ,  C07C19/08 ,  C07C17/08

CPC classification number: C07C17/206 ,  B01J23/26 ,  B01J27/125 ,  C07C17/21

Abstract: 1,1,1,2-tetrafluoroethane (134a) is prepared by reacting, in the gas phase, trichloroethylene with 1,1,1-trifluorochloroethane (133a) and hydrofluoric acid with trichloroethylene/133a molar ratios ranging from 5/95 to 50/50, in the presence of a catalyst consisting of Cr.sub.2 O.sub.3 carried on AlF.sub.3.The process provides 134a yields higher than 90% and permits an exceptionally long life of the catalyst. In this way it is possible to realize a continuous process by recycling the unreacted trichloroethylene and 133a, thereby making up for the relatively low global conversion of the reagents.

Abstract translation: 1,1,1,2-四氟乙烷（134a）是通过在气相中使三氯乙烯与1,1,1-三氟氯乙烷（133a）和三氟乙烯/ 133a摩尔比为5/95至50的氢氟酸反应制备的 / 50，在由AlF3承载的Cr2O3组成的催化剂存在下。 该方法提供134a产率高于90％并且允许催化剂的使用寿命特别长。 以这种方式，可以通过再循环未反应的三氯乙烯和133a来实现连续的方法，从而弥补了试剂的相对低的全局转化率。

公开(公告)号：US5475168A

公开(公告)日：1995-12-12

申请号：US243066

申请日：1994-05-16

Applicant: Antonio Masiero ,  Paolo Cuzzato ,  Letanzio Bragante

Inventor： Antonio Masiero ,  Paolo Cuzzato ,  Letanzio Bragante

IPC: B01J23/26 ,  C07C17/38 ,  C07C17/395 ,  C07C19/08

CPC classification number: C07C17/395

Abstract: 1,1,1-trifluoro-2-fluoroethane (CFC 134a) is purified from 1,1-difluoro-2-chloroethylene (CFC 1122) by reacting a mixture comprising said compounds with hydrofluoric acid, at temperatures from 200.degree. C. to 450.degree. C., in the presence of chrome oxide (Cr.sub.2 O.sub.3) in substantially crystalline form.

Abstract translation: 通过使包含所述化合物的混合物与氢氟酸在200℃至200℃的温度下反应，从1,1-二氟-2-氯乙烯（CFC 1122）中纯化1,1,1-三氟-2-氟乙烷（CFC 134a）至 450℃，在基本上呈结晶形式的氧化铬（Cr 2 O 3）存在下进行。

公开(公告)号：US5345014A

公开(公告)日：1994-09-06

申请号：US60222

申请日：1993-05-11

Applicant: Paolo Cuzzato

Inventor： Paolo Cuzzato

IPC: B01J23/26 ,  C07B61/00 ,  C07C17/00 ,  C07C17/20 ,  C07C17/37 ,  C07C19/08

CPC classification number: C07C17/37

Abstract: Pentafluoroethane (HFC 125) is selectively prepared by dismutation of tetrafluorochloroethane (HCFC 124) effected by contacting the latter, in the gas phase, with a Cr.sub.2 O.sub.3 catalyst at temperatures ranging from 150.degree. to 330.degree. C. Along with HFC 125, also HCFC 123 substantially free from isomers 123a and 123b is obtained.

Abstract translation: 五氟乙烷（HFC 125）通过四氟氯乙烷（HCFC 124）的分解来选择性地制备，所述四氟氯乙烷（HCFC 124）在气相中与Cr 2 O 3催化剂在150℃至330℃的温度下接触而进行。与HFC 125一起，还有HCFC 123 基本上不含异构体123a和123b。

公开(公告)号：US4814113A

公开(公告)日：1989-03-21

申请号：US98469

申请日：1987-09-18

Applicant: Paolo Cuzzato ,  Arsenio Castellan ,  Antonio Pasquale

Inventor： Paolo Cuzzato ,  Arsenio Castellan ,  Antonio Pasquale

IPC: B01J27/12 ,  B01J27/00 ,  B01J27/122 ,  B01J27/125 ,  B01J27/128 ,  B01J27/138 ,  C07B61/00 ,  C07C51/00 ,  C07C51/58 ,  C07C53/46 ,  C07C53/50 ,  C07C67/00 ,  C07C51/62

CPC classification number: C07C51/58

Abstract: Process for the preparation of a perfluoroacyl fluoride wherein the acyl radical is a propionyl or butyryl group, characterized in that perfluoroalkylvinylether wherein the alkyl radical is a methyl or ethyl group is thermally treated in the presence of a catalyst selected from the group consisting of:(A) a fluoride of Li, Na, K, Cs or Rb, or another compound of Li, Na, K, Cs or Rb which is easily fluorinated under the reaction conditions;(B) a fluoride of Be, Mg, Ca, Sr, or Ba, or another compound of Be, Mg, Ca, Sr, or Ba which is easily fluorinatable under the reaction conditions:(C) a fluoroaluminate, fluorosilicate, fluorotitanate or fluorometallate of an alkali metal, or of a metal belonging to group IIA of the Periodic Table, i.e., compounds consisting of fluorine, an alkali metal and a transition metal, or a compound which is easily fluorinatable to yield one of the above-said fluoroaluminates, fluorosilicates, fluorotitanates or fluorometallates under the reaction conditions;(D) a fluoride of a metal of the first transition series, or the corresponding metal, or another compound of such a metal which is easily fluorinatable under the reaction conditions;(E) a fluoride of a lathanide or the corresponding metal, or another compound of such a metal which is easily fluorinatable under the reaction conditions; and(F) an oxyfluoride of Si, Al, Ti, Ge, Sn or Pb, or another compound of Si, Al, Ti, Ge, Sn or Pb which is easily fluorinatable to yield one of the above-said oxyfluorides under the reaction conditions.

公开(公告)号：US20060189834A1

公开(公告)日：2006-08-24

申请号：US10565957

申请日：2004-07-27

Applicant: Paolo Cuzzato ,  Letanzio Bragante

Inventor： Paolo Cuzzato ,  Letanzio Bragante

IPC: C07C21/18 ,  C07C19/08

CPC classification number: C07C17/358 ,  B01J27/125 ,  B01J37/26

Abstract: An activated AlF3 based catalyst is produced by treating a crude AlF3 for more than 5 hours with a gas stream at a temperature from 300° C. to 450° C.

Abstract translation: 通过在300℃至450℃的温度下用气流处理粗AlF 3 3小时来制备基于活化的AlF 3 N 3催化剂。

公开(公告)号：US06436362B1

公开(公告)日：2002-08-20

申请号：US09305675

申请日：1999-05-05

Applicant: Paolo Cuzzato

Inventor： Paolo Cuzzato

IPC: C01B908

CPC classification number: C01F7/50 ,  B01J27/125 ,  B01J37/26

Abstract: Process for preparing aluminum fluoride which comprises fluorination of alumina with gaseous HF, characterized in that the alumina is fluorinated with HF at an initial temperature lower than 300° C., the temperature is raised with a temperature gradient ≦100° C./hour up to the final temperature >320° C. and

Abstract translation: 制备氟化铝的方法，其包括用气态HF氟化氧化铝，其特征在于，氧化铝在初始温度低于300℃下用HF氟化，温度升高，温度梯度<= 100℃/小时 直到最终温度> 320℃和<450℃，氟化在最终温度下继续进行，直到进料​​至少等于氧化铝的化学计量的HF摩尔量，进行氟化，直到氟化氧化铝 得到不低于化学计量的95％的氟含量。

公开(公告)号：US06300529B1

公开(公告)日：2001-10-09

申请号：US09084318

申请日：1998-05-26

Applicant: Paolo Cuzzato ,  Francesco Rinaldi ,  Letanzio Bragante

Inventor： Paolo Cuzzato ,  Francesco Rinaldi ,  Letanzio Bragante

IPC: C07C1908

CPC classification number: B01J27/125 ,  B01J23/26 ,  C07C17/37 ,  C07C19/12

Abstract: Process for preparing HCFC-123 with a content of olefins lower than 10 ppm and very small amounts of HCFC-123a and 123b by dismutation of HCFC-124 in gaseous phase by contact with a catalyst which essentially consists of three valence chromium oxide supported on aluminum fluoride, at temperatures in the range 150°-260° C., and with contact times between 5-25 sec.

Abstract translation: 通过与基本上由负载在铝上的三价铬氧化物组成的催化剂接触而在气相中鉴定HCFC-124，制备具有低于10ppm的烯烃含量的HCFC-123和非常少量的HCFC-123a和123b的方法 氟化物，温度范围为150°-260℃，接触时间为5-25秒。

公开(公告)号：US06187280B1

公开(公告)日：2001-02-13

申请号：US09081294

申请日：1998-05-20

Applicant: Paolo Cuzzato ,  Letanzio Bragante ,  Francesco Rinaldi

Inventor： Paolo Cuzzato ,  Letanzio Bragante ,  Francesco Rinaldi

IPC: C01B908

CPC classification number: C01F7/50 ,  B01J21/04 ,  B01J27/125 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1038 ,  B01J37/26 ,  C01P2006/12 ,  C01P2006/14

Abstract: Process for preparing aluminum fluoride having an high surface area and high pore volume comprising the fluorination with HF of alumina having surface area of at least 150 m2/g and pore volume not lower than 0.3 cc/g, said alumina comprising from about 0.5 up to about 15% by weight of silicon oxide.

公开(公告)号：US6037508A

公开(公告)日：2000-03-14

申请号：US209942

申请日：1998-12-11

Applicant: Paolo Cuzzato ,  Antonio Masiero

Inventor： Paolo Cuzzato ,  Antonio Masiero

IPC: B01J27/12 ,  B01J23/26 ,  B01J27/125 ,  C07B61/00 ,  C07C17/04 ,  C07C17/10 ,  C07C17/20 ,  C07C17/21 ,  C07C19/08 ,  C07C17/00

CPC classification number: C07C17/206 ,  B01J23/26 ,  B01J27/125 ,  C07C17/21

Abstract: 1,1,1,2-tetrafluoroethane (134a) is prepared by reacting, in the gas phase, trichloroethylene with 1,1,1-trifluorochloroethane (133a) and hydrofluoric acid with trichloroethylene/133a molar ratios ranging from 5/95 to 50/50, in the presence of a catalyst consisting of Cr.sub.2 O.sub.3 carried on AlF.sub.3.The process provides 134a yields higher than 90% and permits an exceptionally long life of the catalyst. In this way it is possible to realize a continuous process by recycling the unreacted trichloroethylene and 133a, thereby making up for the relatively low global conversion of the reagents.

Abstract translation: 1,1,1,2-四氟乙烷（134a）是通过在气相中使三氯乙烯与1,1,1-三氟氯乙烷（133a）和三氟乙烯/ 133a摩尔比为5/95至50的氢氟酸反应制备的 / 50，在由AlF3承载的Cr2O3组成的催化剂存在下。 该方法提供134a产率高于90％并且允许催化剂的使用寿命特别长。 以这种方式，可以通过再循环未反应的三氯乙烯和133a来实现连续的方法，从而弥补了试剂的相对低的全局转化率。