Le laurate de nitro-4 phenyle dans l'eau forme des agregats dans lesquels les groupesesters s'hydrolysent lentement。Desels, deformule generale RN(CH 3 ) 3 + X − rompent ou detruisent les agregats。Les groupesesters sont alors deproteges et les vitesses d'hydrolyse 观察羊角面包。L'importance de l'accroissement de vitesse depends de R
Le laurate de nitro-4 phenyle dans l'eau forme des agregats dans lesquels les groupes esters s'hydrolysent lentement. Des sels, de formule generale RN(CH 3 ) 3 + X − rompent ou detruisent les agregats. Les groupes esters sont alors deproteges et les vitesses d'hydrolyse observees croissent. L'importance de l'accroissement de vitesse depend de R
Le laurate de nitro-4 phenyle dans l'eau forme des agregats dans lesquels les groupesesters s'hydrolysent lentement。Desels, deformule generale RN(CH 3 ) 3 + X − rompent ou detruisent les agregats。Les groupesesters sont alors deproteges et les vitesses d'hydrolyse 观察羊角面包。L'importance de l'accroissement de vitesse depends de R
PRODUCTION PROCESS FOR FLUOROSULFONYLIMIDE AMMONIUM SALT
申请人:Tsubokura Shiro
公开号:US20130331609A1
公开(公告)日:2013-12-12
A compound [II] such as ammonium N,N-di(fluorosulfonyl)imide is obtained by reacting a compound [I] such as N,N-di(chlorosulfonyl)imide and NH
4
F (HF)
p
. A compound [IV] such as an N,N-di(fluorosulfonyl)imide alkali metal salt is obtained by reacting the obtained compound [II] and an alkali metal compound or the like.
Synthesis of molecular sieves having the chabazite framework type and their use in the conversion of oxygenates to olefins
申请人:Cao Guang
公开号:US20070043249A1
公开(公告)日:2007-02-22
The synthesis of a crystalline aluminophosphate or silicoaluminophosphate molecular sieve having a chabazite-type framework type is conducted in the presence of an organic directing agent having the formula (I)
[R
1
R
2
R
3
N—R
4
]
+
X
−
(I)
wherein R
1
, R
2
and R
3
are independently selected from the group consisting of alkyl groups having from 1 to 3 carbon atoms and hydroxyalkyl groups having from 1 to 3 carbon atoms; R
4
is selected from the group consisting of 4- to 8-membered cycloalkyl groups, optionally substituted by 1 to 3 alkyl groups having from 1 to 3 carbon atoms; 4- to 8-membered heterocyclic groups having from 1 to 3 heteroatoms, said heterocyclic groups being optionally substituted by 1 to 3 alkyl groups having from 1 to 3 carbon atoms and the heteroatoms in said heterocyclic groups being selected from the group consisting of O, N, and S; and aromatic groups optionally substituted by 1 to 3 alkyl groups, said alkyl groups having from 1 to 3 carbon atoms; and X
−
is an anion.
A process for producing an aliphatic isocyanate from an aliphatic primary amine comprising a carbonylation step in which an aliphatic primary amine is allowed to react with carbon monoxide at a temperature of about 100-250°C in the presence of an aromatic hydroxyl compound having a pKa value of not more than about 11, molecular oxigen and a catalyst system comprising at least one member selected from palladium and rhodium metals and components thereof and at least one member selected from iodine and bromine and compounds thereof and a combined separation and recovery step comprising a pyrolysis-distillation reaction in which the mixture of carbonylated products is heated to a temperature of from about 100 to 300°C.
PROCESS FOR PRODUCTION OF FLUOROSULFONYLIMIDE AMMONIUM SALT
申请人:Nippon Soda Co., Ltd.
公开号:EP2674395A1
公开(公告)日:2013-12-18
A compound [I] such as ammonium N-(chlorosulfonyl)-N-(fluorosulfonyl)imide is reacted with hydrogen fluoride to obtain a compound [II] such as ammonium N,N-di(fluorosulfonyl)imide. The obtained compound [II] is reacted with an alkali metal compound or the like to obtain a compound [IV] such as an N,N-di(fluorosulfonyl)imide alkali metal salt.