{"id":133685,"date":"2024-05-14T06:36:33","date_gmt":"2024-05-14T04:36:33","guid":{"rendered":"https:\/\/igr.erstellen.de\/raw-materials\/"},"modified":"2026-04-08T11:31:09","modified_gmt":"2026-04-08T09:31:09","slug":"raw-materials","status":"publish","type":"page","link":"https:\/\/igrgmbh.de\/en\/raw-materials\/","title":{"rendered":"Raw materials"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row row_height_percent=&#8221;0&#8243; override_padding=&#8221;yes&#8221; h_padding=&#8221;2&#8243; top_padding=&#8221;2&#8243; bottom_padding=&#8221;2&#8243; back_color=&#8221;color-lxmt&#8221; overlay_alpha=&#8221;100&#8243; gutter_size=&#8221;100&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243; style=&#8221;inherited&#8221; uncode_shortcode_id=&#8221;103199&#8243; back_color_type=&#8221;uncode-palette&#8221;][vc_column column_width_percent=&#8221;100&#8243; gutter_size=&#8221;2&#8243; override_padding=&#8221;yes&#8221; column_padding=&#8221;2&#8243; back_color=&#8221;color-xsdn&#8221; overlay_alpha=&#8221;50&#8243; radius=&#8221;sm&#8221; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; zoom_width=&#8221;0&#8243; zoom_height=&#8221;0&#8243; width=&#8221;1\/1&#8243; uncode_shortcode_id=&#8221;644842&#8243; back_color_type=&#8221;uncode-palette&#8221;][vc_single_image media=&#8221;132255&#8243; media_width_percent=&#8221;100&#8243; media_ratio=&#8221;two-one&#8221; alignment=&#8221;center&#8221; uncode_shortcode_id=&#8221;192353&#8243;][vc_accordion history=&#8221;yes&#8221; no_toggle=&#8221;yes&#8221; target=&#8221;row&#8221; typography=&#8221;advanced&#8221; gutter_simple=&#8221;0&#8243; titles_size=&#8221;h3&#8243; titles_weight=&#8221;600&#8243; uncode_shortcode_id=&#8221;130552&#8243; title=&#8221;Raw materials&#8221;][vc_accordion_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;2&#8243; title=&#8221;Chemical analyses&#8221; tab_id=&#8221;d21d5937-3bb0-216728530574741715660990894&#8243; slug=&#8221;Chemische-Analysen&#8221;][vc_column_text uncode_shortcode_id=&#8221;645841&#8243;]<\/p>\n<ul>\n<li>ICP-OES analysis according to DIN 51086-2 of the elements and element oxides: Al, As, B, Ba, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, Li, Mg, Mn, Na, Ni, P, Pb, S, Sb, Si, Sn, Sr, Ti, V, Zn, Zr. Digestion including hydrofluoric acid-perchloric acid according to DIN 52340-3, aqua regia digestion according to DIN EN 13346 <\/li>\n<li>X-ray fluorescence analysis (XRF) according to DIN 51001 and DIN 51418 ( &gt;0.001 wt.% concentration), e.g. for analysing high-purity raw materials and other elements such as F, Cl, Br<\/li>\n<li>SEM-EDX examinations according to DIN ISO 22309, if necessary with image documentation, chemical scan analyses, mappings, line scans (depending on the order)<\/li>\n<li>X-ray diffractometry (XRD) based on DIN EN 13925 for analysing crystal structures<\/li>\n<li>Determination of loss on ignition according to DIN 51081 at different temperatures (e.g. 550 \u00b0C, 1050 \u00b0C, 1150 \u00b0C)<\/li>\n<li>Carbon determination using the Str\u00f6hlein incinerator at 1250 \u00b0C as total carbon (C), organic carbon (TOC) and inorganic carbon (TIC)<\/li>\n<li>Determination of the chemical oxygen demand (COD), e.g for sand, coke and basalt<\/li>\n<li>SO<sub>3<\/sub> determination using the Str\u00f6hlein incinerator at 1250 \u00b0C<\/li>\n<li>Fe<sup>2+<\/sup> detection with phenanthroline based on DIN ISO 14719<\/li>\n<li>Cr(VI) detection with diphenylcarbazide based on DIN 51086-3<\/li>\n<li>Determination of the emission factor for the CO<sub>2<\/sub> trading system according to DEHSt (German Emissions Trading Centre) and the UBA (Federal Environment Agency)<\/li>\n<li>Determination of the redox potential and the redox number derived from this for batch calculations, e.g. for filter dust<\/li>\n<li>FTIR spectroscopy according to ASTM E 1252 e.g. for plastics analysis<\/li>\n<li>Melting point determination, e.g. of plastics<\/li>\n<li>Analysis of inorganic filter aids and filter materials according to DIN EN 12902 for the treatment of water for human consumption<\/li>\n<li>Analysis of silica sand and silica gravel according to DIN EN 12904 for the treatment of water for human consumption<\/li>\n<li>Leaching tests<\/li>\n<li>Analysis in accordance with DIN EN 1018 parameters and the requirements of the list of treatment materials and disinfection methods \u00a711 Drinking Water Ordinance 2001<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_accordion_tab][vc_accordion_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;2&#8243; title=&#8221;Physical analyses&#8221; tab_id=&#8221;6dad8f3c-7309-816728530574741715660990894&#8243; slug=&#8221;Physikalische-Analysen&#8221;][vc_column_text uncode_shortcode_id=&#8221;164190&#8243;]<\/p>\n<ul>\n<li>Sieve analysis according to DIN 66165, depending on the order, e.g. 7 fractions (2 mm to 0.04 mm)<\/li>\n<li>Bulk density according to ISO 697, DIN EN ISO 60<\/li>\n<li>Moisture content of raw materials and mixtures based on DIN ISO 11465 and DIN 52331<\/li>\n<li>Microscopic examination according to ISO 8039 or using SEM-EDX according to DIN ISO 22309 of grain shape, surfaces and sizes<\/li>\n<li>Heavy mineral identification in the raw material using various heavy separation systems such as IGR-modified bumbling table, spiral separator and heavy liquid with a density &gt;2.9 g\/m\u00b3 for sample sizes ranging from grams to tonnes, followed by detection of the heavy minerals, e.g. using SEM-EDX<\/li>\n<li>Processing of raw materials, including by attrition and with a high-intensity rare earth roller magnetic separator to remove ferrous particles and further analyses, e.g. using ICP-OES<\/li>\n<li>Determination of HCl-insoluble components in raw materials, e.g. silicates in limestone\n<\/li>\n<li>Decrepitation test for raw materials, especially dolomite<\/li>\n<li>Determination of the oil number according to ISO 787-5<\/li>\n<li>BET analyses to determine the specific surface area<\/li>\n<li>Determination of the degree of whiteness in the Lab color space, also on powdered raw materials<\/li>\n<li>Dose rate measurements (radiation dose per time unit, e.g. in \u00b5Sv\/h)<\/li>\n<li>DTA (differential thermal analysis) based on DIN 51004, DIN 51005, DIN 51006, DIN 51007<\/li>\n<li>TGA (thermo-gravimetric analysis)<\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_accordion_tab][\/vc_accordion][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row row_height_percent=&#8221;0&#8243; 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