66results about How to "Reduce the precipitation rate" patented technology

A method for producing nickel composite hydroxide particles may include: a first step of producing nuclei including primary particles by controlling the pH of an aqueous solution for nucleation, the aqueous solution for nucleation containing a metal compound having an atomic ratio of metals corresponding to an atomic ratio of metals in the nickel composite hydroxide particles and substantially not containing a metal complex ion-forming agent; and a second step of forming, on an outer surface of each of the nuclei, an outer shell portion including platy primary particles larger than primary particles of the nuclei by controlling the pH of an aqueous solution for particle growth containing the nuclei obtained in the nucleation step.

A long throw Pop-Up Irrigation Nozzle assembly has no oscillating or rotating parts and includes a cylindrical body having a fluid inlet and a sidewall defining at least one fluidic circuit configured to generate a selected spray pattern when irrigation fluid flows through the body. In order to throw long distance, droplet velocity, droplet size and droplet initial aim angle determine the throw to provide a low precipitation rate (“PR”) for fluidic sprays. The nozzle assembly and method of the present invention achieve a PR of 1 in / hr or less and good spray distribution with a scheduling coefficient (“SC”) of about 1.5 without utilizing any moving components to provide a significantly more cost effective nozzle assembly, as compared to prior art rotator nozzles.

The invention provides a special alloy wax-proofing tool; the wax-proofing tool changes the electronic structures of wax molecules through electrochemical action so as to change the aggregation action of wax, efficiently inhibit and retard the coagulation blocking of wax and promote analyzed wax to suspend in liquid in the form of small crystals and flow along with the liquid, thereby efficientlypreventing and retarding the coagulation of wax on a tube wall and a sucker rod; and therefore, the flushing working period of an oil well is prolonged. As the application of a new technology of producing wax removal by crude oil, the special alloy wax-proofing tool avoids the pollution caused by thermal washing or chemical washing besides improving the production efficiency of crude oil, and hasobvious social and economic values.

A special alloy with a function of paraffin inhibition is characterized in that the special alloy contains the following elements of: by weight, 65-95% of Cu, 3-30% of Ni, 1.0-5.0% of Co and 0.1-0.5% of RE, wherein RE is rare earth element. With the application of the special alloy in crude oil production wax inhibitor / removal technology, crude oil production efficiency is not only raised, but pollution caused by hot washing / chemistry-flushing well is also avoided. Therefore, the special alloy has obvious social and economic values. The paraffin inhibition special alloy is a novel functional material and has a good subject research value and a development prospect for the research on interaction effect of a metal material and a liquid and the development of a novel functional material by its electrocatalysis effect of crude oil composition and a special function of changing wax deposition agglomeration behavior.

The invention discloses an anti-ultraviolet honeycomb composite board. The honeycomb composite board comprises a honeycomb board core material, a honeycomb board panel and a honeycomb board panel basebottom film, wherein the honeycomb board panel is compounded together with the honeycomb board core material through the honeycomb board panel base bottom film; the honeycomb board panel is made of the following components in parts by weight: 40 to 100 parts of thermoplastic material, 0.5 to 1.5 parts of coupling agent, 0.5 to 2 parts of dispersing agent, 0.1 to 5 parts of ultraviolet light absorber and 0.1 to 5 parts of radical scavenger; the honeycomb board panel base bottom film is made of the following components in parts by weight: 90 to 100 parts of glass fiber cloth material, 0.5 to 1.5 parts of coupling agent, 0.5 to 2 parts of dispersing agent and 0.1 to 5 parts of quenching agent; the honeycomb board core material is made of the following components in parts by weight: 40 to 100 parts of thermoplastic material, 0.5 to 1.5 parts of coupling agent, 0.5 to 2 parts of dispersing agent, 0.1 to 3 parts of hydroperoxide decomposer and 0.1 to 3 parts of radical scavenger. In the honeycomb composite board, different light stabilizers are added, so that the honeycomb composite board has an ultraviolet absorption capability, the negative effect of ultraviolet radiation on the honeycomb composite board is lowered, and the service life of the honeycomb composite board is prolonged.