Ppg Industries, Inc.

Frederick F Guzik

Suresh B Damle

Sidney B Richter

William W Carlin

James A Manner

Steven E Pamer

Ethyl chloroformate is chlorinated in the rectifying zone of a distillation reactor to produce 1-chloroethyl chloroformate and 2-chloroethyl chloroformate.

Synthesis of monochloroethyl chloroformates by free radical initiated

Disclosed is a process for preparing surface modified silica sorption agent suitable for purifying contaminated aqueous liquid, the sorption agent comprising amorphous, precipitated, silica having surface deposited thereon an organic quaternary ammonium compound.

Method for purifying waste water using surface modified silica

This invention relates to a process for preparing herbicidally active substituted diphenylethers. Also, this invention provides novel intermediates useful in the production of said diphenylethers.

Process of preparation of substituted diphenyl ethers

Haloaniline is produced in high yield by reacting halobenzene with a mixture containing a metal amide and a controlled molar excess of liquid ammonia based on the moles of halobenzene.

Preparation of haloaniline

Disclosed are S-p-methoxyphenyl N,N-diallylthiolcarbamate and S-p-methoxyphenyl N,N-bis(2,3-dibromopropyl)thiolcarbamate. The latter compound possesses systemic nematocidal properties particularly against Meloidogyne species.

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Wadsworth, OH, United States of America

Frederick F Guzik