公开(公告)号：US07033485B2

公开(公告)日：2006-04-25

申请号：US09853372

申请日：2001-05-11

申请人： William E. Saver ,  E. Ronald McHenry

发明人： William E. Saver ,  E. Ronald McHenry

IPC分类号： C10C1/19 ,  C10C3/00 ,  C10C1/04

CPC分类号： C10L1/322 ,  B29C47/0004 ,  B29C47/0009 ,  B29C47/92 ,  B29C2947/92704 ,  C04B35/522 ,  C04B35/532 ,  C04B35/83 ,  C04B2235/6021 ,  C04B2235/614 ,  C04B2235/77 ,  C04B2235/96 ,  C08J3/201 ,  C08J2395/00 ,  C08L95/00 ,  C08L2555/54 ,  C10C1/16 ,  C10C3/002 ,  C10C3/06 ,  F16D69/023

摘要： Described are methods that utilize high efficiency evaporative distillation to make a high softening point coal tar pitch, a quinoline insoluble-free and ash-free coal tar pitch having a desired softening point, and a mesophase coal tar pitch. Each of the methods uses a feed coal tar pitch having a softening point in the range of 70° C. to 160° C. The methods may be carried out using appropriate conventional distillation equipment, a wiped film evaporator, or a thin film evaporator.

公开(公告)号：US5746906A

公开(公告)日：1998-05-05

申请号：US513329

申请日：1995-08-10

申请人： E. Ronald McHenry ,  William E. Saver

发明人： E. Ronald McHenry ,  William E. Saver

IPC分类号： C10C3/00 ,  C10C73/36

CPC分类号： C10C3/005

摘要： A coal tar pitch/petroleum pitch blend is disclosed together with a method of making the same. In accordance with the invention, a crude coal tar material is selected according to specific properties including QI, specific gravity, water and ash content. A petroleum pitch material is also selected according to its softening point, QI, coking value and sulfur content. The coal tar pitch is distilled to a uncharacteristically high softening point which is then mixed with the petroleum pitch to a desired softening end point. The material retains significant QI and coking value characteristics of pure coal tar pitch particularly for use in Soderberg-type anodes for aluminum smelting as well as electric arc furnace electrodes. PAH emissions, and more specifically B(a)P equivalent emissions, are all reduced by approximately 40%.

摘要翻译： 公开煤焦油沥青/石油沥青混合物及其制备方法。 根据本发明，根据包括QI，比重，水和灰分含量的特定性质选择粗煤焦油材料。 石油沥青材料也根据其软化点，QI，焦化值和硫含量进行选择。 将煤焦油沥青蒸馏至非常高的软化点，然后将其与石油沥青混合至所需的软化终点。 该材料保持纯煤焦油沥青的重要QI和焦化价值特征，特别适用于用于铝冶炼的Soderberg型阳极以及电弧炉电极。 PAH排放，更具体地说是B（a）P当量排放量，都减少了约40％。