%0 Journal Article
%T Calcium Carbide of Different Crystal Formation Synthesized by Calcium Carbide Residue<br>利用电石渣制备多种晶形碳酸钙的研究
%A LU Zhong-yuan
%A KANG Ming
%A JIANG Cai-ron
%A TU Ming-jing
%A <br>卢忠远
%A 康明
%A 姜彩荣
%A 涂铭旌
%J 环境科学
%D 2006
%I 
%X To recycle calcium carbide residue effectively,calcium carbide of different crystal form,including global aragonite,calcite and acicular calcium carbide was synthesized.Both the influence of pretreatment in the purity of calcium carbide,and the influence of temperatures of carbonization reaction,release velocity of carbon dioxide in the apparition of calcium carbide of different crystal form were studied with DTA-TG and SEM.The result shows that calcium carbide residue can take place chemistry reaction with ammonia chlorinate straight.Under the condition that pH was above 7,the purity of calcium carbide was above 97%,and the whiteness was above 98.Once provided the different temperatures of carbonization reaction and the proper release velocity of carbon dioxide,global aragonite,calcite and acicular calcium carbide were obtained.
%K calcium carbide residue
%K calcium carbide of different crystal formation
%K pretreatment<br>电石渣
%K 多晶形碳酸钙
%K 预处理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=60C65569DCE2AD9D&yid=37904DC365DD7266&vid=DB817633AA4F79B9&iid=E158A972A605785F&sid=FA519F4FF622280A&eid=0358FC3DBCE8E14D&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=19