Abstract: The disclosure provides a lead-acid battery storage container, mainly including an upper compartment body and a lower compartment body; the upper compartment body is provided with a pressure roller driven by a driving mechanism located at both sides of the upper compartment body; a slide rail is provided at one end of the upper compartment body, and an air duct is provided at the other end; a grab bucket is provided at the top of the upper compartment body, and a collecting tank is provided at both sides of the bottom thereof; and a water pool is located at the bottom of the lower compartment body. In the present disclosure, the driving mechanism is a translational trolley, and a bearing block engaged with an end of the pressure roller is provided at an upper side of the translational trolley.

Abstract: A process for producing basic lead carbonate is provided. The process comprises: (1) immersing neutralization slag to obtain sodium hydroxide solution; (2) leaching lead chloride slag with the aqueous solution containing sodium chloride and hydrochloric acid, adding sodium sulfide and filtering; (3) neutralizing the filtrate with sodium hydroxide solution, filtering and washing the precipitate; and (4) converting the precipitate to basic lead carbonate with ammonium bicarbonate, crystallizing and washing. Said neutralization slag and lead chloride slag are the redundant slag from fire refining bismuth. Said process makes better use of the redundant slag from fire refining bismuth, saves resources and reduces environmental pollution.

Abstract: Carbon nanotube apparatus, and methods of carbon nanotube modification, include carbon nanotubes having locally modified properties with the positioning of the modifications being controlled. More specifically, the positioning of nanotubes on a substrate with a deposited substance, and partially vaporizing part of the deposited substance etches the nanotubes. The modifications of the carbon nanotubes determine the electrical properties of the apparatus and applications such as a transistor or Shockley diode. Other applications of the above mentioned apparatus include a nanolaboratory that assists in study of merged quantum states between nanosystems and a macroscopic host system.

Abstract: The present invention relates to a desulfurization process of pastel and grids of lead accumulators comprising a carbonation in two steps, a granulometric separation between the two steps followed by specific desulfurization of the large part, a desodification obtaining the conversion of the PbSO4 contained in the pastel into PbCO3 which can be easily converted into metallic Pb in an oven by the addition of coal. The system used for the desodification of the large part of the pastel can also be used for the desulfurization of the fine part of the grids.

Abstract: To provide a process for producing carbonate particles, capable of efficient, easy formation of carbonate particles which have high crystallinity, less prone to agglomeration and offer orientation birefringence, particularly carbonate particles that are needle- or rod-shaped, and of controlling the particle size. In the process a metal ion source and a carbonate ion source are heated together in a liquid of 55° C. or higher for reaction to produce carbonate particles with an aspect ratio of greater than 1, wherein the metal ion source contains at least one metal ion selected from the group consisting of Sr2+, Ca2+, Ba2+, Zn2+ and Pb2+. The carbonate particles are preferably needle- or rod-shaped, pH of the liquid after heating reaction is preferably 8.20 or more, and in its X-ray diffraction spectrum the full-width at half maximum of the diffraction peak corresponding to (111) plane is preferably less than 0.8°.

Abstract: The present invention provides a pharmaceutical composition for application to the mucosa to be used in drug therapy comprising a water-insoluble and/or water-low soluble substance, a medicament, and an aqueous medium, and having an osmotic pressure of less than 290 mOsm. This composition is superior over conventional pharmaceutical compositions for application to the mucosa, due to efficient and high permeability to the blood at the mucosa. The present invention further provides a pharmaceutical composition for application to the mucosa comprising a hemostatic agent and a medicament. This composition is superior over conventional pharmaceutical compositions for application to the mucosa, due to permeability and retentivity at the mucosa.

Abstract: Methods and apparatus for the hydrometallurgical separation and recovery of biological nutrients, cadmium, lead, and gypsum from raw materials such as electric arc furnace flue dust. Biological nutrients, including zinc and iron, are selectively separated and recovered from raw materials, including metals and metal oxides, and are selectively and variably recombined, to achieve a biological nutrient product which a desired relative concentration of zinc and iron. The process is a closed system generating no solid waste, no liquid water or acid waste streams, and whereby gypsum, and substantially all hazardous wastes such as lead and cadmium, are separated and recovered from raw material for sale as commercial products.

Abstract: A method of recovering fine lead-containing particles (battery paste) from expended lead-acid batteries in a form which can be used as battery paste in the manufacturing of new batteries without smelting is disclosed. A method of heating lead carbonate particles to about 315.degree. C. to convert them to lead monoxide particles for use in battery manufacturing is also disclosed.

Abstract: In connection with the recycling of lead-acid batteries, lead-acid battery mud containing lead sulfate is desulfated by adding to the battery mud, which is maintained at a temperature less than 140.degree. F., an aqueous solution containing an ammonium reagent such as ammonium carbonate or ammonium bicarbonate. The ammonium reagent reacts with the lead sulfate to form an aqueous solution of ammonium sulfate and a lead carbonate precipitate. The aqueous solution of ammonium sulfate is then separated from the battery mud containing the lead carbonate precipitate.