Abstract:
Disclosed is a method for preparing 1-octene in the presence of a catalyst system for ethylene oligomerization, which includes: premixing a part of ethylene gas as raw material with a solvent, mixing with the components a+b, c and d of the catalyst system, and then sending in a reactor; directly sending the rest of ethylene gas in the reactor; discharging the resultant liquid from the upper part of the reactor into an overflow channel; adding a catalysis stopping agent to the overflow channel; and then separating the resultant liquid. The advantages of the method are high selectivity of 1-octene and high catalytic activity.
Abstract:
The invention relates to a pendulum guide device for a jigsaw saw blade which executes reciprocating motions, having guide elements which grip onto a saw blade back of the saw blade and which are assigned to a frame. It is proposed that at least two guide elements (7) are provided, wherein one is fixed to the frame and the other is movably mounted to the frame (8) and is pretensioned onto and in the direction of the saw blade back (6).
Abstract:
A pendulum guide device for a power jigsaw saw blade that executes reciprocating motions includes guide elements that engage a saw blade spine of the saw blade and are associated with a support frame. A first two guide elements is fixed in place on the support frame and a second guide element is bearing-mounted to the support frame in moving fashion and is prestressed in the direction toward the saw blade spine.