Plant and method for reconditioning green foundry sand

Cleaning and liquid contact with solids – Processes – For metallic – siliceous – or calcareous basework – including...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

134 10, 134 251, 134 28, 134 30, 164 5, 423340, C23G 102

Patent

active

049522469

ABSTRACT:
Green sand having a residuum of retained clay is reconditioned by screening and predrying it to about zero moisture; calcining the sand to burn off organic matter; cooling the sand; mechanically scrubbing the cooled sand to free mechanically bonded clay and a portion of the clay magnetically adhered to the sand; mixing an acid/water solution with the sand to react with the remaining magnetically adhered clay to permit such clay to break free from the sand; drying the sand to release the freed clay; and extracting the thus-released clay from the sand.

REFERENCES:
patent: 3050364 (1962-08-01), Segrove
patent: 3282416 (1966-11-01), Colce
patent: 3297402 (1967-01-01), Chubb
patent: 4113510 (1978-09-01), Richard
patent: 4303453 (1981-12-01), Jung et al.
patent: 4405588 (1983-09-01), Caballero et al.
patent: 4478572 (1984-10-01), Selli
patent: 4542003 (1985-09-01), Watkins et al.
patent: 4685973 (1987-08-01), Ashton
patent: 4709862 (1987-12-01), Leidel
patent: 4799530 (1989-01-01), Sturgis et al.
patent: 4804422 (1969-02-01), Pupanikulau et al.
patent: 4815516 (1989-03-01), Sturgis et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Plant and method for reconditioning green foundry sand does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Plant and method for reconditioning green foundry sand, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plant and method for reconditioning green foundry sand will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1587650

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.