| 摘要 |
To improve the separation of dispersedly precipitated sulfur from a washing solution used in the oxidative washing of hydrogen sulfide containing waste gases, the suspension is heated before filtration to about 45.degree. C to 70.degree. C. Such heating causes the sulfur contained in the solution to coagulate into large flocks and form a mass of high purity sulfur which i s largely non- thixotropic. This mass, often called a filter cake, can be washed and utiliz ed in a large number of ways as a source of sulfur.
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