SAN JOSE, Calif.--(BUSINESS WIRE)--Imerys Filtration Minerals, Inc. will raise prices for products shipped within North America effective July 15, 2014. The increase will range from 3 to 10%, subject to any provisions in individual contracts. The price increase supports continual investments and rising costs in manufacturing, maintenance, quality systems, and environmental compliance. The price increases will apply across all diatomite, perlite, cellulose, and silicate products. The energy surc