A system for resource recycling of sulfur dioxide includes a charcoal reduction furnace, a high temperature dust remover, a cooling separator A, a liquid sulfur tank, a cooling separator, a tail gas absorption tower, a gas stripping tower, a hypo reactor, a centrifuge, a mother liquor tank and a thickener. And a method for resource recycling of sulfur dioxide includes the following steps: (1) preparing elemental sulfur, (2) removing dust from a process gas containing gaseous sulfur, (3) separating elemental sulfur, (4) reabsorbing residual SO.sub.2 gas, (5) purifying sulfur powder, (6) preparing a slurry of cured hypo, (7) performing liquid-solid separation, and (8) preparing an absorption slurry. According to the method, SO.sub.2 gas is reduced into liquid sulfur and sulfur powder, and sodium thiosulfate is coproduced.

Provided are a cobalt-free positive electrode material for a lithium ion battery, a preparation method therefor and a lithium ion battery. The method for preparing the cobalt-free positive electrode material for the lithium ion battery comprises: mixing lithium nickel manganese oxide with sulfate, so as to obtain a first mixture; and reacting the first mixture at a predetermined temperature, so as to obtain the cobalt-free positive electrode material. The cobalt-free positive electrode material comprises lithium nickel manganese oxide and a cladding layer of an outer surface thereof, and the cladding layer comprises lithium sulphate. The lithium ion battery comprises the cobalt-free positive electrode material. The cobalt-free positive electrode material has a relatively high electrical performance and a relatively low alkali content.

Disclosed are a process and continuous system for producing LiPF.sub.6, and a prepared mixture crystal, composition, electrolyte solution and lithium ion battery containing LiPF.sub.6. During preparation, a first feed stream containing PF5 and a second feed stream containing LiF and HF are introduced into a first microchannel reactor, a gas part of a product in the first microchannel reactor is introduced into a second microchannel reactor to react with a third feed stream containing LiPF.sub.6, LiF and HF, and a liquid part of the product in the first microchannel reactor is subjected to crystallization and drying to obtain LiPF.sub.6. The LiPF.sub.6 has the advantages of a high purity, a uniform particle size, a high product quality stability, etc., and is suitable for use as a component of an electrolyte solution of a lithium ion battery.

The present invention relates to a method for the valorization of gaseous effluents derived from alcoholic fermentation, comprising: a step of alcoholic fermentation in a bioreactor producing a fermented matter and a gaseous effluent, wherein the gaseous effluent comprises carbon dioxide; a step of extraction of the gaseous effluent from the bioreactor, followed by compression thereof, in order to obtain a compressed gaseous effluent; and a step of production of a suspension of alkaline bicarbonate in a bicarbonate production unit, wherein the bicarbonate production unit is divided into at least two compartments arranged successively in series. The present invention also relates to a corresponding plant.

The present invention refers to a dry composition for chemical and physical sun protection, the composition comprising a) at least one calcium carbonate, and b) from 0.1 wt.-% to 100 wt.-%, based on the dry weight of the at least one calcium carbonate of step a) of at least one lignin. Furthermore, the present invention refers to a fluid composition comprising the inventive dry composition as well as to an emulsion comprising the inventive dry composition. The present invention also refers to the use of the inventive compositions for sun protection of plants and parts thereof as well as the use of the inventive emulsion for chemical and physical sun protection in a cosmetic formulation.

The present invention relates to a lithium metal composite oxide powder having a layered structure, and comprising at least Li, Ni, and an element X, wherein: said element X is at least one element selected from the group consisting of Co, Mn, Fe, Cu, Ti. Mg, Al, W, Mo, Nb, Zn, Sn, Zr, Ga, V, B, Si, S, and P; and the lithium metal composite oxide powder satisfies requirements (1), (2), and (3): (1) an angle of difference (θ1- θ2) calculated from an angle of repose (θ1) and an angle of fall (θ2) is 15° or less, wherein the angle of repose (θ1) is an angle of slope of the lithium metal composite oxide powder piled on a measurement table, and the angle of fall (θ2) is an angle of slope measured after application of a predetermined impact force to the measurement table; (2) an average primary particle diameter is 1 .Math.m or more; and (3) an amount of water contained in the lithium metal composite oxide powder is 1000 ppm or less.

The present disclosure provides an aluminum phosphite-based complex with dual-peak thermal gravity decomposition characteristics and a preparation method and use thereof. A structural formula of the complex is as follows: ((HPO.sub.3).sub.3Al.sub.2).((H.sub.2PO.sub.3).sub.3Al).sub.x, wherein x is 0.01-0.5 and represents a molar ratio of (H.sub.2PO.sub.3).sub.3Al to (HPO.sub.3).sub.3Al.sub.2. The dual-peak thermal gravity decomposition characteristics are as follows: a first gravity peak temperature is 460-490° C., and a second gravity peak temperature is 550-580° C. The preparation method includes: uniformly mixing aluminum phosphite and aluminum hydrogen phosphite according to the ratio in the structural formula, and then performing stepwise heating at a rate of 5° C./min to raise the temperature of a mixture from the normal temperature to no more than 350° C. within 1-10 hours, so as to obtain the aluminum phosphite-based complex with the dual-peak thermal gravity decomposition characteristics. The complex may serve as or is configured to prepare a flame retardant or a flame-retardant synergist.

A composition formed from a calcium or magnesium carbonate-including material and a surface-treatment composition including at least one cross-linkable compound, a dry process for the preparation of such a composition, a curable elastomer mixture comprising an elastomer resin and the composition, a cured elastomer product formed from the curable elastomer mixture, a process for preparing the cured elastomer product, the use of at least one cross-linkable compound including at least two functional groups, wherein at least one functional group is suitable for cross-linking an elastomer resin and wherein at least one functional group is suitable for reacting with the calcium or magnesium carbonate-including material in the compounding of an elastomer formed from an elastomer resin and at least one calcium or magnesium carbonate-comprising material as filler as well as an article formed from the cured elastomer product.

Particles with suitable properties may be generated using systems and methods provided herein. The particles may include carbon particles.

Provided is a hydrophobic silica powder that can be obtained by the sol-gel process, and that is excellent in charge properties. The hydrophobic silica powder has a hydrophobicity of 50% or more, a saturated water content of 4% or less, and a nitrogen content of 0.05% or more.