Nippon Shokubai Co., Ltd.

Technische Universitat Munchen

Tunap-gmbh & Co.kg

Alex Lange

Tsuyoshi Hirata

Johann Plank

Sergej Pawlitschek

Volker Knöthig

The present disclosure relates to the use of a polar solvent as an additive to a solution containing a component that releases ammonia at above 200° C. for the removal of deposits or impurities in a selective catalytic reduction system, wherein the polar solvent has a boiling point at 101.3 kPa of at least 140° C. The present disclosure further relates to a method of removing deposits or impurities in a selective catalytic reduction system and a method of operating a selective catalytic reduction system.

Additive for cleaning SCR systems

A copolymer that has sufficient dispersibility to various kinds of cements, including those having low fluidity (difficult cement). The copolymer is obtained by polymerizing monomer components including an unsaturated (poly)alkylene glycol ether monomer (a), an unsaturated carboxylic acid monomer (b), and an unsaturated cross-linkable monomer (c) or an unsaturated cross-linkable monomer (d). The unsaturated cross-linkable monomer (c) is allyl itaconate or allyl citraconate, or ester thereof. The unsaturated cross-linkable monomer (d) is an ester obtained by reaction of at least one acid, selected from the group consisting of (meth)acrylic acid, maleic acid, fumaric acid, itaconic acid, and citraconic acid and ester derived from the acids, with a (poly)alkylene glycol or a (poly)alkylene glycol ether.

Copolymer for dispersant for cement, dispersant for cement, and cement composition

Growing community of inventors

Munich, Georgia

Alex Lange