3 results about "Carbon number" patented technology

The present invention provides a water absorbing agent, and a method for producing the water absorbing agent. The water absorbing agent includes water absorbent resin particles, an organic acid and/or salt thereof having carbon number of 10 or more and not more than 30 in its molecule, and a water-soluble polyvalent cation. The method includes the step (i) of mixing the water absorbent resin particles, the organic acid and/or salt thereof having carbon number of 10 or more and not more than 30 in its molecule, and the water-soluble polyvalent cation with one another.

The present invention discloses a method for preparing cyclohexanone through a cyclohexane liquid-phase oxidation method. According to the method, alcohol ketone from a cyclohexane oxidation reaction sequentially passes through a first rectification tower so as to separate the cyclohexanone product, and passes through a second rectification tower and a third rectification tower so as to separate cyclohexanol, the separated cyclohexanol is added into a dehydrogenation reactor through an alcohol groove to carry out a dehydrogenation reaction, the reaction product from the dehydrogenation reactor sequentially enters a fourth rectification tower so as to separate the component containing the carbon number of less than 6, and enters a fifth rectification tower so as to separate the cyclohexanone product, the tower kettle liquid of the fifth rectification tower is recycled as the feeding material of the second rectification tower, and a light component separation device is arranged after the fifth rectification tower, such that the raw material containing the high light component content is removed in the light component separation device in advance so as to reduce the light component content in the cyclohexanol. The method of the present invention has advantages of simple process, low cost and good light component separation effect.

The invention relates to the technical field of olefin polymerization reaction catalysis. The invention specifically discloses an application of a mono-cyclopentadienyl fourth subgroup metal complex containing a neutral coordination side group. The structure of the mono-cyclopentadienyl fourth subgroup metal complex containing the neutral coordination side group is represented by a formula 1 or aformula 2, the mono-cyclopentadienyl fourth subgroup metal complex containing the neutral coordination side group is used as a main catalyst, a mixture of alkylaluminoxane or alkylaluminum and an organic boron auxiliary agent is used as a cocatalyst, and the mono-cyclopentadienyl fourth subgroup metal complex containing the neutral coordination side group is used for catalyzing olefin polymerization reaction, so that 1-hexene or alpha-olefin with the carbon number of more than or equal to C10 can be generated with high selectivity.