A PRELIMINARY STUDY ON THE GERMANIUM CONTENT IN THE COAL SEAMS OF A CERTAIN REGION
WANG KUO-FU WANG LIEN-TENG
With the systematic sampling and chemical data,the authors present brief accountof the relation between the germanium contents in coals and their petrographical com-positions and ash-contents. The basic conclusions arrived are as follows: 1. Germanium is found to concentrate in the anthraxylon (vitrain) and lignite. 2. The germanium content in coal,being directly proportional to the volatile com-ponents,is universally proportional to the ash-content,and is observed to concentrate incoal of low ash-content. 3. In the course of calcination the variation of germanium content in coals de-pends on the change of temperature and is independent of the temperature-raising velo-city.