<p style="text-indent: 18pt; mso-char-indent-count: 2.0"><font face="宋體"><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">白云石概述化學(xué)成分為</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">CaMg[CO3]2</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">，</span><span class="at4"><span style="font-size: 9pt; color: black">理論組成為氧化鎂</span></span><span class="at3"><span lang="EN-US" style="font-size: 9pt; color: black">21.7%,</span></span><span class="at4"><span style="font-size: 9pt; color: black">氧化鈣</span></span><span class="at3"><span lang="EN-US" style="font-size: 9pt; color: black">30.4%,</span></span><span class="at4"><span style="font-size: 9pt; color: black">二氧化碳</span></span><span class="at3"><span lang="EN-US" style="font-size: 9pt; color: black">47.9%,(</span></span><span class="at4"><span style="font-size: 9pt; color: black">或碳酸鈣</span></span><span class="at3"><span lang="EN-US" style="font-size: 9pt; color: black">54.2%,</span></span><span class="at4"><span style="font-size: 9pt; color: black">碳酸鎂</span></span><span class="at3"><span lang="EN-US" style="font-size: 9pt; color: black">45.8%)</span></span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">晶體屬三方晶系的碳酸鹽礦物。白云石的晶體結(jié)構(gòu)與方解石類似，晶形為菱面體，晶面常彎曲成馬鞍狀，聚片雙晶常見，多呈塊狀、粒狀集合體。純白云石為白色，玻璃光澤。三組菱面體解理完全，性脆。摩氏硬度</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">3.-4</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">，比重</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">2.8-2.9</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">。礦物粉末在冷稀鹽酸中反應(yīng)緩慢。用途：白云石可用作冶金熔劑、耐火材料、建筑材料和玻璃、陶瓷的配料。我公司生產(chǎn)各種品質(zhì)的白云石系列產(chǎn)品。白云石礦石，白云石砂</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">6-10</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">目，</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">10-20</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">目，</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">20-40</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">目，</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">40-80</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">目，</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">80-120</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">目</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">,</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">白云石粉</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">10</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">目通過，白云石超細(xì)粉</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">140</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">目</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">,325</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">目</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">,600</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">目</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">,1000</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">目</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">,1600</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">目。化學(xué)成分：</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;"> MgO=21<span class="clh15">%</span>&plusmn;0.5<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>CaO=31<span class="clh15">%</span>&plusmn;0.5<span style="mso-spacerun: yes">&nbsp;&nbsp; </span>Fe2O3</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">＜</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">0.08<span class="clh15">%</span></span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">。</span><span class="clh15"><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">AL2O3=0.16%</span></span><span class="clh15"><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">、</span></span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;"> SIO2=0.2%</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">、色度</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">90<span class="clh15">%</span></span><span class="clh15"><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">、</span></span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">包裝：塑編袋</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">(<st1:chmetcnv w:st="on" unitname="公斤" sourcevalue="50" hasspace="False" negative="False" numbertype="1" tcsc="0">50<span lang="EN-US" style="font-family: 宋體; mso-ascii-font-family: &#718;&#805;"><span lang="EN-US">公斤</span></span></st1:chmetcnv>/</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">袋</span><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;">)</span><span style="font-size: 9pt; mso-ascii-font-family: &#718;&#805;">。</span></font><span lang="EN-US" style="font-size: 9pt; font-family: &#718;&#805;"><o:p></o:p></span></p>