Process for the filtration of suspensions containing sulfur

Details Process for the filtration of suspensions containing sulfur Process for the filtration of suspensions containing sulfur

1994-01-31

1999-01-19

Hruskoci, Peter A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

232935, 210737, 423224, 4235781, C02F 102

Patent

active

058610995

ABSTRACT:
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 is largely non-thixotropic. This mass, often called a filter cake, can be washed and utilized in a large number of ways as a source of sulfur.

REFERENCES:
patent: 4304570 (1981-12-01), Kleeberg et al.
patent: 4631068 (1986-12-01), Baker et al.
patent: 4647287 (1987-03-01), Audch
patent: 4876079 (1989-10-01), Kliem et al.
patent: 5049370 (1991-09-01), Hasebe et al.

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