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39761-70-1

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39761-70-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39761-70-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,7,6 and 1 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 39761-70:
(7*3)+(6*9)+(5*7)+(4*6)+(3*1)+(2*7)+(1*0)=151
151 % 10 = 1
So 39761-70-1 is a valid CAS Registry Number.

39761-70-1Upstream product

39761-70-1Downstream Products

39761-70-1Relevant articles and documents

Highly efficient trimerization of isobutene over silica supported chloroaluminate ionic liquid using C4 feed

Liu, Shimin,Shang, Jianpeng,Zhang, Shiguo,Yang, Benqun,Deng, Youquan

, p. 41 - 48 (2013)

A series of silica, glass and molecular sieves supported chloroaluminate ionic liquids (ILs) were prepared and their catalytic performance on the trimerization of isobutene based on C4 mixture was investigated. Interestingly, it was found that the carrier played a key role in the reaction route. Among these supported catalysts, silica supported chloroaluminate ionic liquid was highly efficient for the trimerization of isobutene. X-ray photoelectron spectroscopy (XPS) and differential scanning calorimetry (DSC) characterizations suggested that the synergy between Al2Cl7- anion and silica induced the catalytic activity for isobutene oligomerization due to the strong interaction between ILs and silanol group. The reaction conditions including loading amount, temperature, reactant concentration, and space velocity for the isobutene oligomerization were optimized. Ultimately, complete conversion of isobutene and 91.4% selectivity of trimers were obtained over the IL/silica (30 wt.%) catalyst at mild conditions. Moreover, catalyst stability and deactivation were preliminarily studied.

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