4results about How to "Low acid concentration" patented technology

The invention provides a laterite-nickel ore gradient continuous leaching method which comprises the following steps: laterite-nickel ore sequentially passes through a fusion leaching area, a stable leaching area and an adjustable leaching area to be continuously leached in the material conveying direction of the laterite-nickel ore; acid liquor is added into the fusion leaching area and the stability leaching area; the temperature of the fusion leaching area is T1 and the reaction time is t1, the temperature of the stable leaching area is T2 and the reaction time is t2, and the temperature of the adjustable leaching area is T3 and the reaction time is t3; wherein T < 2 > < gt >; t3 > = T1, and t2gt; t3gt; t3gt; t1. According to the method, the high-pressure acid leaching process is subjected to partition treatment, the one-time leaching efficiency is improved, scaling is slowed down, accordingly, scaling of a reaction kettle can be reduced while further leaching of Fe and Al is inhibited, acid liquor and waste residues can be fully utilized, efficient leaching of nickel, cobalt and manganese is achieved, and waste heat generated after slurry is discharged from an adjustable leaching area can be recycled.

The utility model relates to electrophoresis equipment device technical field more specifically, relate to an anode film horizontal overflow port anti -blocking device and anode film system, including device body, device body is the pipe fitting structure of both ends open, device body includes first pipe body and second pipe body, one end of first pipe body and one end of second pipe body are linked together, the included angle of first pipe body and second pipe body is 90 DEG, and one end of first pipe body away from second pipe body is connected with overflow port. The utility model makes the anode overflow port of electrophoresis system not easy to take place the blockage, reduced the impurity deposition, has stronger low flow rate ability.

The utility model belongs to the technical field of electrodeposition anolyte recycling, and particularly relates to an electrodeposition anolyte acid salt separation and concentration recycling system. The device comprises an electrolytic bath, an acid blocking device, a salt concentration device, an acid purification device and an acid concentration device, a deacidified salt liquid outlet of the acid blocking device is connected with a water inlet of the salt concentration device, and a concentrated water outlet of the salt concentration device is connected with a catholyte water inlet of the electrolytic bath. A produced water outlet of the salt concentration device is connected with a regenerated liquid inlet of the acid retardation device, an acid recovery liquid outlet of the acid retardation device is connected with a water inlet of the acid purification device, and a produced water outlet of the acid purification device is connected with a water inlet of the acid concentration device; a concentrated water outlet of the acid purification device is connected with a feed liquid inlet of the acid retarding device, an acid concentrated solution is obtained at a concentrated water outlet of the acid concentration device, and an adsorption filler of the acid retarding device is acid retarding resin. By adopting the system, the effective separation, concentration and recycling of the electrodeposition anolyte acid salt can be realized.

The present invention relates to a pharmaceutical composition comprising 1-(3-cyano-1-isopropyl-indol-5-yl)pyrazol-4-carboxylic acid or a pharmaceutically acceptable salt thereof, and a method of treating or preventing a hyperuricemia-related disease using the same, and the pharmaceutical composition of the present invention may effectively reduce the blood uric acid concentration in a patient with a hyperuricemia-related disease.