Maurice A Knight Company has pioneered in the development of corrosion-proof materials of construction for the chemical industry. In 1981 Koch Engineering Company, Inc., purchased selected assets of the Maurice A. Knight Company. Today, Koch Knight LLC continues to be a leading innovator in the fields of corrosion proof materials and environmental heat transfer equipment.

KNIGHT-WARE® (Chemical Ceramic) was the first material produced by the Maurice A Knight Company in the early 1900’s. Until this time, the American chemical industry relied on chemical stoneware manufactured in England and Germany. Although stoneware was made in the United States, it was considered inferior to the European product. The only reasons for using American stoneware were lower price and quicker delivery. In order to raise the status of American stoneware, Maurice A. Knight Company developed KNIGHT-WARE® products from vitreous ceramic, which did not depend upon a glaze for acid resistance and was strong enough to be formed into large pieces of equipment.

PYROFLEX® Sheet Lining was developed as protective membrane protective lining for concrete and steel vessels. As the chemical industry grew, larger corrosion-proof vessels were needed to satisfy the ever-increasing demand for chemical products. To meet this challenge, PYROFLEX® Lining, a continuous leak-proof protective lining, was developed. Through research, we continue to improve the original PYROFLEX formulation to meet the on-going requirements for acid proof construction in today’s chemical process industries. PYROFLEX® 500 is the latest improvement to this product line.

Acid Proof Mortars were brought into use as a means of bonding brick and tile to protect the membrane linings from abrasion and high temperature. The early mortars were mainly inorganic materials such as silicates and sulfur. Later, resin mortars such as phenolics, furans, polyester and vinylester, were developed for improved chemical resistance and bonding strength. PERMANITE® Mortar, a furfuryl alcohol resin mortar, was developed and continues to be produced to meet the needs of the chemical and allied industries. Today, we offer improved inorganic and resin mortars blended for the application.

Ceramic Tower Packing, such as Raschig Rings, Spiral and Cross Partition Rings, were developed to replace tower packing made of quartz, coke, and brick. The BERL Saddle was first made in commercial quantities in America by the Knight Company in the early 1930’s. These designs offered a significant improvement in mass transfer surface area of the earlier packing designs. FLEXISADDLE® Tower Packing was also developed to achieve increased performance in mass transfer operations. Today FLEXISADDLE® Tower Packing is available in chemical stoneware, porcelain, and other specialized ceramic compositions.

Koch Knight engineers have extensive experience in the fabrication of corrosion-proof equipment and knowledge of liquid-gas direct contact heat and mass transfer in packed towers. They pioneered in the design and construction of many chemical process units such as Direct Contact Cooling and Drying of Chlorine Cell Gas, HCl Recovery, production of Anhydrous HCl, Fume Disposal Systems, Autoclaves, Quench Towers, Sulfuric Acid production towers and many others.

FLEXERAMIC® Structured Ceramic Packing was developed in the late 1980’s. This high surface area, low pressure drop tower packing offers many benefits in mass and heat transfer applications. It can be manufactured from various ceramic composites offering plant operators efficient and economical alternatives to engineered plastics and exotic alloys.

PRESSURE OXIDATION AUTOCLAVES. Koch Knight LLC took its expertise in acid brick lining design, manufacture and installation to develop linings for the high temperatures and pressures encountered in pressure oxidation. Today, Koch Knight has experience in all types of hydrometallurgical ore processing including gold, nickel, zinc and copper.

Throughout the last decade, Koch Knight LLC has:

	Opened our Canadian Sales Office in Ottawa, Ontario
	Purchased additional manufacturing capacity and capability in East Canton, Ohio
	Opened our Australian Sales Offices in Sydney, New South Wales and Perth, Western Australia

Recently, Koch Knight LLC introduced the state of the art in tower packing; the Low Pressure Drop, or LPD® Packing. This patented design provides improved efficiencies, throughput, and energy savings for environmental and chemical applications.

New and improved products continue to be developed in Koch Knight LLC's laboratories and manufactured in our facilities to meet the needs of our customer’s applications. Some of these innovative products include PYROFLEX® 500 Membrane, KNIGHT-WARE® PV33P Brick, KNIGHT-WARE® WR Brick, LPD® and GR™ FLEXISADDLE® Packing along with many others.

Koch Knight LLC's engineering and construction capabilities continue to grow as well. With the addition of high tech plastics and virtually all types of anti-corrosive materials, Koch Knight LLC now has the ability to solve most any corrosion problem.

Today, Koch Knight LLC, as a manufacturer and installer of acid proof materials, equipment and environmental media worldwide, remains prepared to assist you with all your corrosion resistant, mass transfer, and heat transfer requirements.

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