Effect of Treatment with Sodium Carbonate and Hydrogen on the Activity and Selectivity of Pd-Containing Polymer Catalysts for the Hydrogenation of Acetylene Compounds

2021 ◽  
Vol 13 (3) ◽  
pp. 280-288
Author(s):  
A. V. Bertova ◽  
A. A. Korshakova ◽  
A. V. Bykov ◽  
M. G. Sulman ◽  
L. Zh. Nikoshvili ◽  
...  
Keyword(s):  
Sodium Carbonate ◽  
Effect Of Treatment ◽  
Acetylene Compounds

The effect of treatment with sodium carbonate and hydrogen on the activity and selectivity of polymeric Pd-containing catalysts for hydrogenation of acetylene compounds

2021 ◽  
Vol 1 (1-2) ◽  
pp. 86-96
Author(s):  
A. A. Bertova ◽  
A. A. Korshakova ◽  
A. V. Bykov ◽  
M. G. Sulman ◽  
L. Zh. Nikoshvili ◽  
...  
Keyword(s):  
Sodium Carbonate ◽  
Atmospheric Pressure ◽  
Palladium Catalysts ◽  
High Selectivity ◽  
Industrial Process ◽  
Polymeric Support ◽  
Amino Groups ◽  
Carbon Carbon Bond ◽  
Effect Of Treatment ◽  
Acetylene Compounds

Catalytic hydrogenation of the triple carbon-carbon bond of acetylene compounds is an important industrial process. High selectivity to the olefin compound should be provided in the process. This study considers the effect exerted by sodium carbonate treatment of the palladium catalysts containing super-cross-linked polystyrene (SPS) on their activity and selectivity in the hydrogenation of 2-methyl- 3-butin-2-ol and phenylacetylene. The effect of such treatment was shown to depend on the chosen palladium precursor and the type of polymeric support (non-functionalized SPS or that containing ternary amino groups). At atmospheric pressure of hydrogen and a temperature of 90 °C in a toluene medium, the 1%-Pd/SPS catalysts treated with Na2CO3 provided a 98 % selectivity in the hydrogenation of 2-methyl-3-butin-2-ol (at a 95 % conversion of the substrate), while selectivity in the hydrogenation of phenylacetylene reached 99.5 %.

1115: The Effect of Treatment Strategy on Stone Comminution Efficiency in Shock Wave Lithotripsy

2004 ◽  
Vol 171 (4S) ◽  
pp. 294-294
Author(s):  
Yufeng Zhou ◽  
Charles G. Marguet ◽  
Michaella E. Maloney ◽  
Franklin H. Cocks ◽  
Glenn M. Preminger ◽  
...  
Keyword(s):  
Shock Wave ◽  
Treatment Strategy ◽  
Shock Wave Lithotripsy ◽  
Effect Of Treatment

In Vitro Incorporation of Sodium Acetate-l-C14 into Leukocyte Lipids of Normal and Leukaemic Subjects as a Function of Incubation Time

1962 ◽  
Vol 02 (02) ◽  
pp. 165-172
Author(s):  
C Miras ◽  
G Lewis ◽  
J Mantzos
Keyword(s):  
Sodium Acetate ◽  
Linear Part ◽  
Lipid Synthesis ◽  
Normal Subjects ◽  
Cytostatic Agents ◽  
Time Intervals ◽  
Total Blood ◽  
Effect Of Treatment ◽  
Product Relation

Summary1. Separated leukocytes or total blood from normal subjects, untreated leukaemic patients and from leukaemic patients treated with cytostatic agents were incubated with CH3COONa-l-C14. Radioactivity of mixed lipids was measured at standard time intervals.2. The time incorporation curve observed with leukocytes from treated leukaemic patients showed after an initial linear part, a more rapid levelling off than the curves observed with leukocytes from untreated and normal subjects.3. Therefore, an indirect effect of treatment on leukocyte lipid synthesis seems to be present.4. Phospholipid and neutral lipid synthesis by leukaemic leukocytes was also studied. The results give no evidence that these fractions as a whole have any precursor-product relation.

Management of patients in conditions of female consultation at persistent course of papillomavirus infection of the cervix

2017 ◽  
pp. 34-36
Author(s):  
N.A. Shcherbina ◽  
◽  
D.I. Demidenko ◽  
A.D. Demidenko ◽  
N.V. Kapustnik ◽  
...  
Keyword(s):  
Human Papillomavirus ◽  
Key Words ◽  
Maximum Effect ◽  
Cervical Epithelium ◽  
Results Of Treatment ◽  
Human Papillomavirus Infection ◽  
Papillomavirus Infection ◽  
Complex Therapy ◽  
Effect Of Treatment

Under our supervision there were 66 women with a diagnosis of "dysplasia of cervical epithelium mild" on the background of persistent human papillomavirus infection (PVI). With the aim of improving the treatment of dysplasia of the 1st degree in rehabilitation activities after cryoablation there were applied drugs Distreptaza and inducer of interferon. The results of treatment were evaluated after 3 months. For patients of the 1st group (18 women) who underwent only cryoablation, the efficacy of therapy was 77.8%. In the 2nd group (22 women) after cryoablation was used inducer of interferon, the effectiveness made up of 90.9%. The maximum effect of treatment - 100% recorded in 3rd group (26 patients), where after cryoablation was carried out treatment with Distreptaza and inducer of interferon. The results of treatment obtained in this group allow to recommend the complex therapy of PVI in conditions of female consultation. Key words: dysplasia, HPV, cryosurgery, Distreptaza, inducer of interferon.

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