{"id":28880,"date":"2010-11-01T23:39:33","date_gmt":"2010-11-01T22:39:33","guid":{"rendered":"https:\/\/icmsva.vallealto.es\/?articulos_sci=effect-of-pressure-on-kaolinite-illitization"},"modified":"2026-04-14T11:49:57","modified_gmt":"2026-04-14T09:49:57","slug":"effect-of-pressure-on-kaolinite-illitization","status":"publish","type":"articulos_sci","link":"https:\/\/icmsva.vallealto.es\/?articulos_sci=effect-of-pressure-on-kaolinite-illitization","title":{"rendered":"Effect of pressure on kaolinite illitization"},"content":{"rendered":"<figure><img decoding=\"async\" src=\"https:\/\/icmsva.vallealto.es\/wp-content\/uploads\/2010\/11\/Effect-of-pressure-on-kaolinite-illitization-1-1.png\" alt=\"Effect of pressure on kaolinite illitization\" \/><\/figure>\n<p>The illitization of kaolinite at increasing pressures was followed by hydrothermal experiments of kaolinite in KOH solution at 300 degrees C for 12 h and pressures between 500 and 3000 bar XRD indicated a direct transformation of kaolinite into muscovite\/illite with increasing pressure However the (27)AI MAS NMR spectra showed in addition to the muscovite\/illite resonances the presence of a signal at 61 ppm that should correspond to a secondary phase not detected by XRD A second series of experiments at 300 degrees C and 1000 bar for 1 3 and 6 h was carried out to show direct evidence of such phase The XRD patterns of the products clearly showed the crystallization of K-F zeolite while the (27)AI MAS NMR spectra of these samples displayed a signal at 61 ppm that must correspond therefore to Al in the K-F zeolite structure In conclusion kaolinite transformed into muscovite\/illite when submitted to hydrothermal reaction in KOH solution with increasing pressure with the formation of a secondary metastable phase called K-F zeolite whose coherent diffraction domains were too small as to be detected by XRD.Effect of pressure on kaolinite illitization<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The illitization of kaolinite at increasing pressures was followed by hydrothermal experiments of kaolinite in KOH solution at 300 degrees C for 12 h and pressures between 500 and 3000 bar XRD indicated a direct transformation of kaolinite into muscovite\/illite with increasing pressure However the (27)AI MAS NMR spectra showed in addition to the muscovite\/illite&hellip;<\/p>\n","protected":false},"featured_media":28884,"template":"","autores":[],"grupos_de_investigacion":[6508],"revistas":[196],"anos":[895],"class_list":["post-28880","articulos_sci","type-articulos_sci","status-publish","has-post-thumbnail","hentry","grupos_de_investigacion-materiales-para-energia-y-sostenibilidad","revistas-applied-clay-science","anos-895","description-off"],"acf":[],"_links":{"self":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci\/28880","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci"}],"about":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/types\/articulos_sci"}],"version-history":[{"count":1,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci\/28880\/revisions"}],"predecessor-version":[{"id":28885,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/articulos_sci\/28880\/revisions\/28885"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=\/wp\/v2\/media\/28884"}],"wp:attachment":[{"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28880"}],"wp:term":[{"taxonomy":"autores","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fautores&post=28880"},{"taxonomy":"grupos_de_investigacion","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fgrupos_de_investigacion&post=28880"},{"taxonomy":"revistas","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Frevistas&post=28880"},{"taxonomy":"anos","embeddable":true,"href":"https:\/\/icmsva.vallealto.es\/index.php?rest_route=%2Fwp%2Fv2%2Fanos&post=28880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}