Abstract: A multi-stage refrigeration system is provided. The refrigeration system includes a first compression element which produces a first compressed refrigerant stream. A mixer combines the first compressed refrigerant stream with an auxiliary refrigerant stream. A second compression element is coupled to the mixer and produces a second compressed refrigerant stream. A first heat exchanger receives the second compressed refrigerant stream and generates a cooled stream. A stream splitter receives the cooled stream and provides first and second output streams. A first expansion valve receives the first output stream and controls the flow of the first output stream and a second expansion valve receives the second output stream and controls the flow of the second output stream. A second heat exchanger generates the auxiliary refrigerant stream provided to the mixer.

Abstract: Synergistic, crop plant-compatible herbicidal compositions comprising herbicides from the group of the benzoylpyrazoles What is described are herbicidal compositions comprising A) a compound from the group of the benzoylpyrazoles, B) at least one further herbicide and C) at least one safener as herbicides which are active against monocotyledonous and/or dicotyledonous harmful plants. Compared to the herbicides applied individually, these compositions have superior activity and are at the same time highly compatible with crop plants.

Abstract: A multi-stage refrigeration system is provided. The refrigeration system includes a first compression element which produces a first compressed refrigerant stream. A mixer combines the first compressed refrigerant stream with an auxiliary refrigerant stream. A second compression element is coupled to the mixer and produces a second compressed refrigerant stream. A first heat exchanger receives the second compressed refrigerant stream and generates a cooled stream. A stream splitter receives the cooled stream and provides first and second output streams. A first expansion valve receives the first output stream and controls the flow of the first output stream and a second expansion valve receives the second output stream and controls the flow of the second output stream. A second heat exchanger generates the auxiliary refrigerant stream provided to the mixer.

Abstract: Combinations of a compound of formula (I) or a salt thereof in which R1, R2, R3, R4 and n are as defined in the description, and one or more aryloxyphenoxypropionate herbicides or agriculturally acceptable salts thereof are useful for increasing weed control.

Abstract: The present invention describes the combination of an agrochemically active compound with a polymer with formation of hydrogen bonds for the controlled release of this active compound. Both the polymer and active compound have functional groups which permit the formation of hydrogen bonds.