Restoration of stone objects

Details Restoration of stone objects Restoration of stone objects

1983-07-18

1984-10-30

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

134 13, 134 30, 134 42, B08B 704

Patent

active

044795033

ABSTRACT:
The restoration of monuments and other objects made of stone is described. The process is carried out by immersing the stone object in deionized water in order to dissolve the calcium sulfate contamination present on the deteriorated stone which is caused by the pollutants present in air, then circulating the water containing the dissolved calcium sulfate through an ion exchange resin which can selectively trap the sulfate and release calcium hydroxide into the solution, followed by exposure to carbon dioxide under controlled conditions in order to thereby reprecipitate the calcium ions on the stone object as the carbonate in the calcite crystalline form.

REFERENCES:
patent: 3511707 (1970-05-01), Flamme
patent: 3529999 (1970-09-01), Boeniger
patent: 4076868 (1978-02-01), Roth et al.

Affiliated with

Also associated with

Rating

Restoration of stone objects does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Restoration of stone objects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Restoration of stone objects will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1098472