Abstract
IR and X-ray phase analyses of commercial water gas shift catalyst samples prepared by mixing solid chromic anhydride, basic copper carbonate (malachite), aluminum hydroxide, and water at 70/sup 0/-100/sup 0/C and 0.35:1 to 1.2:1 ratio of water to solid components (R) showed the formation of a basic copper chromate (BCC) CuCrO/sub 4/-2CuO-2H/sub 2/O at 80/sup 0/C (any R) and at 100/sup 0/C and R Vertical Bar3: 1.2:1, but at 100/sup 0/C and lower R (especially at R 0.7:1), a different, unidentified phase was formed. The samples containing these two phases had different colors; the high-temperature, low-water phase showed lower thermal stability but higher catalytic activity than the BCC. The BCC catalyst samples contained less unreacted malachite and their IR spectra contained a 3100-3200/cm band characteristic of hydroxyls associated by hydrogen bonds, and more molecular water, suggesting the formation of a hydroxo-polymeric structured system.
Citation Formats
Sharkina, V I, Salomatin, G I, and Boevskaya, E A.
Copper-chromium compounds formed in the preparation of a low-temperature water gas shift catalyst.
USSR: N. p.,
1978.
Web.
Sharkina, V I, Salomatin, G I, & Boevskaya, E A.
Copper-chromium compounds formed in the preparation of a low-temperature water gas shift catalyst.
USSR.
Sharkina, V I, Salomatin, G I, and Boevskaya, E A.
1978.
"Copper-chromium compounds formed in the preparation of a low-temperature water gas shift catalyst."
USSR.
@misc{etde_6685424,
title = {Copper-chromium compounds formed in the preparation of a low-temperature water gas shift catalyst}
author = {Sharkina, V I, Salomatin, G I, and Boevskaya, E A}
abstractNote = {IR and X-ray phase analyses of commercial water gas shift catalyst samples prepared by mixing solid chromic anhydride, basic copper carbonate (malachite), aluminum hydroxide, and water at 70/sup 0/-100/sup 0/C and 0.35:1 to 1.2:1 ratio of water to solid components (R) showed the formation of a basic copper chromate (BCC) CuCrO/sub 4/-2CuO-2H/sub 2/O at 80/sup 0/C (any R) and at 100/sup 0/C and R Vertical Bar3: 1.2:1, but at 100/sup 0/C and lower R (especially at R 0.7:1), a different, unidentified phase was formed. The samples containing these two phases had different colors; the high-temperature, low-water phase showed lower thermal stability but higher catalytic activity than the BCC. The BCC catalyst samples contained less unreacted malachite and their IR spectra contained a 3100-3200/cm band characteristic of hydroxyls associated by hydrogen bonds, and more molecular water, suggesting the formation of a hydroxo-polymeric structured system.}
journal = []
volume = {19:6}
journal type = {AC}
place = {USSR}
year = {1978}
month = {Dec}
}
title = {Copper-chromium compounds formed in the preparation of a low-temperature water gas shift catalyst}
author = {Sharkina, V I, Salomatin, G I, and Boevskaya, E A}
abstractNote = {IR and X-ray phase analyses of commercial water gas shift catalyst samples prepared by mixing solid chromic anhydride, basic copper carbonate (malachite), aluminum hydroxide, and water at 70/sup 0/-100/sup 0/C and 0.35:1 to 1.2:1 ratio of water to solid components (R) showed the formation of a basic copper chromate (BCC) CuCrO/sub 4/-2CuO-2H/sub 2/O at 80/sup 0/C (any R) and at 100/sup 0/C and R Vertical Bar3: 1.2:1, but at 100/sup 0/C and lower R (especially at R 0.7:1), a different, unidentified phase was formed. The samples containing these two phases had different colors; the high-temperature, low-water phase showed lower thermal stability but higher catalytic activity than the BCC. The BCC catalyst samples contained less unreacted malachite and their IR spectra contained a 3100-3200/cm band characteristic of hydroxyls associated by hydrogen bonds, and more molecular water, suggesting the formation of a hydroxo-polymeric structured system.}
journal = []
volume = {19:6}
journal type = {AC}
place = {USSR}
year = {1978}
month = {Dec}
}