Method for preparing a filter medium

Details Method for preparing a filter medium Method for preparing a filter medium

1979-03-26

1981-10-20

Czaja, Donald E.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By treating occluded solids

264115, 264125, B29H 720

Patent

active

042960568

ABSTRACT:
A filtering medium having a large specific surface area is made by sintering basalt or lava powder with sodium or potassium metasilicate and borax. The powder before sintering and/or the sintered product after sintering is treated with inorganic acid and the extract may be processed to recover lanthanides.

REFERENCES:
patent: 2358932 (1944-09-01), Knight
patent: 3761571 (1973-09-01), Woodhead
patent: 3845185 (1974-10-01), Kamigaito et al.

Affiliated with

Also associated with

Rating

Method for preparing a filter medium does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for preparing a filter medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing a filter medium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1490679