30results about How to "Unique high temperature resistance" patented technology

The invention provides a sludge solidifying agent prepared by using slag, a preparation method and application thereof. The curing agent is prepared from the following raw materials in mass percentage: 15-25% slag, 20-25% modified diatomite, 20-25% attapulgite, 10-15% silica fume, 4-8% Powdered activated carbon, 5-10% peroxide, 1-3% potassium permanganate, 1-2.5% iron powder, 1-5% cationic chelate, 1-5% polyrotaxane, 1-5% polyacrylic acid Sodium, 0.1-0.8% alkaline activator, 0.1-0.5% water reducer, 0.1-0.3% thickener, fully mix the above raw materials in a mixer, and mix them according to the mass ratio of 5%-30% of the sludge Put it into the mud, then mix it thoroughly, let it dry and cure naturally for 0.5‑1h before use. The invention has the advantages of simple curing process, short curing time and high efficiency. During the curing process, the toxic and harmful substances in the sludge can be degraded, and the peculiar smell in the sludge can be removed. The cured sludge will not cause secondary pollution.

The invention provides a soft foundation material prepared by solidifying silt and a preparation method thereof. The soft foundation material is made of the following raw materials in parts by weight: 70-80 parts of silt, 5-10 parts of silt curing agent, silicic acid Aluminum 1‑3 parts, coal gangue 2‑5 parts, slag powder 0‑3 parts, modified phosphogypsum 1‑5 parts, red mud 2‑6 parts. The present invention utilizes the sludge solidifying agent to solidify the sludge. The sludge solidifying agent has good curing effect, short curing time and high efficiency. The solidified sludge is used for road subgrade or side slope protection filling, which reduces the road construction cost and is more efficient. Conducive to protecting the environment.

The invention relates to a preparation method of a lightweight aluminum-based composite material. Aluminum chips and alumina are dissolved in a nano-silica sol to form a stable suspension, and then ultrasonically reacted and solidified at low temperature, and then sintered to obtain an aluminum alloy. The bubble structure is soaked in the silicon carbide phenolic resin suspension for several times, and finally activated at low temperature to obtain the aluminum matrix composite material. The material of the invention not only has good processing performance, but also has unique wear resistance, high temperature resistance, high thermal conductivity and light specific gravity.

The invention provides a planting soil prepared by solidifying silt and its application. The planting soil is made of the following raw materials in parts by weight: 70-85 parts of silt, 5-12 parts of silt curing agent, lignin sulfonate 1‑3 parts, 2‑5 parts of potassium chloride, 3‑10 parts of plant ash, 2‑6 parts of calcium magnesium phosphate fertilizer, 1‑4 parts of ammonium bicarbonate. The planting soil prepared by solidifying silt in the present invention is applied to planting vegetation. The planting soil of the invention conforms to the nutrient absorption and vegetation growth law at the initial stage of planting, significantly improves the growth of plants planted in the soil after the sludge is solidified, has good treatment effect, protects the environment, and regenerates and utilizes resources.

The invention belongs to the technical field of organic synthesis, in particular to a CO 2 A nanocomposite catalyst efficiently converted into cyclocarbonate and a preparation method thereof; the preparation method comprises: (1) contacting the attapulgite powder with a modifier, centrifuging, washing, and drying the reaction product to obtain a solid powder (2) the solid powder is contacted with a metal salt for reaction, and then CO is introduced into the reaction system 2 , to obtain a pre-product; (3) sintering the pre-product to obtain the nanocomposite catalyst; the metal salt is a rare earth salt and / or a transition metal salt; the nanocomposite catalyst provided by the invention has a catalyst raw material Easy to get, low cost, simple preparation process, good selectivity, stable structure, high multi-metal synergistic catalytic efficiency and easy separation and recycling of the catalyst; the catalyst has the advantages of not using a solvent during the catalytic reaction, and the catalyst has no effect on the air. It is not sensitive to water and has the advantages of wide application range of substrates.