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624 results about "Substance of very high concern" patented technology

A substance of very high concern (SVHC) is a chemical substance (or part of a group of chemical substances) for which it has been proposed that the use within the European Union be subject to authorisation under the REACH Regulation. Indeed, listing of a substance as an SVHC by the European Chemicals Agency (ECHA) is the first step in the procedure for restriction of use of a chemical. The first list of SVHCs was published on 28 October 2008 and the list has been updated many times to include new candidates. The most recent update occurred on 15 January 2019 to include a total 197 SVHC.

Sulfur-doped carbon material or sulfur-nitrogen-doped carbon material and preparation method and application thereof

The invention discloses a sulfur-doped carbon material or a sulfur-nitrogen-doped carbon material. The sulfur-doped carbon material is formed by doping sulfur into a carbon material, or the sulfur-nitrogen-doped carbon material is formed by doping the sulfur and nitrogen into the carbon material, wherein the carbon material is carbon black. The material can be used as or in an electrode material for manufacturing a battery and has excellent electrochemical performance. The invention further discloses a preparation method of the sulfur-doped carbon material or the sulfur-nitrogen-doped carbon material, and the preparation method comprises the following steps of: evenly mixing a sulfur doping raw material or the sulfur doping raw material and a nitrogen doping raw material with the carbon material, to form a mixture, then, pouring the mixture into water to form a uniformly-dispersed suspension; and drying the suspension to obtain a substance, grinding the substance, and then, calcining the substance in an inert gas atmosphere to obtain the sulfur-doped carbon material or the sulfur-nitrogen-doped carbon material. The preparation method is simple in operation and easy in mass production.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI

Olfactory analog instrument and on-site analysis method for odor grade of specific substance

The invention provides an olfactory analog instrument and an on-site analysis method for the odor grade of a specific substance. The invention has the following characteristics: 1, a gas sensor array constant temperature operation room, a computer and an autoinjection system are integrated in a test box; 2, utilization of a sample bottle with a volume of 250 ml and 25 ml of a to-be-tested sample enables a gas-liquid ratio to be 9: 1; 3, parallel resistance wires respectively wind in a semi-circle manner to generate 45-W power, so the sample and headspace volatilized gas are heated to a temperature of 80 DEG C in only 8 min and maintained at the temperature for 30 min; 4, 25 ml of an aqueous ethanol solution with a concentration of 100 ppm is used to generate standard reference gas in the sample bottle with a volume of 250 ml, and correction on gas sensors are carried out based on the generated standard reference gas; 5, headspace sampling flow is 500 ml / min, sampling time is 30 s, and gas sensor response signals undergo lowpass filtering and dimensionality reduction pretreatment; and 6, a database is established, and the olfactory analog instrument carries out on-site detection and grade prediction and identification on the odor of specific substances consisting of an adhesive, petroleum wax, leather, glycerin and edible vegetable oil.
Owner:EAST CHINA UNIV OF SCI & TECH

A modular full-function expansion atmosphere monitoring mobile platform and a monitoring use method

PendingCN109878400AAtmospheric environment monitoring is convenientImplement parsingMeasurement devicesItem transportation vehiclesWireless dataEngineering
The invention discloses a modular full-function expansion atmosphere monitoring mobile platform and a monitoring use method. An atmosphere mobile super monitoring platform is formed by an atmosphere environment monitoring system (A), an instrument calibration system (B), a data integration system (D), a pollutant tracing system (E) and a wireless data communication system (F) which are modularly integrated and mounted on a vehicle body (1); a floor sliding type side pull compartment (7), a half-section type upturning door (5) and a half-section type downward turning platform (6) are expanded from the vehicle body (1). The pollutant tracing system (E) finally analyzes the source and diffusion conditions of pollutants according to the operation result of a LPDM model; the monitoring mobile platform can monitor the content and components of pollutants in the atmosphere at any time and any place, and can continuously monitor the wide-range atmospheric environment. Through rapid detection of tracer pollutants including VOCs and the like, an emission source is judged, and pollution source analysis is achieved. Traceability forecasting and diffusion simulation are rapidly carried out, theemission reduction situation is evaluated, and a future monitoring route plan is formulated.
Owner:NANJING UNIV +1

Method for producing coated acidifier granules for feed

The invention relates to a method for producing coated acidifier granules for a feed. The method comprises the following steps of: atomizing and adsorbing lactic acid; placing a proper amount of carbon black into a one-step granulator; spraying the lactic acid into the granulator for atomization and adsorption by a peristaltic pump; crushing citric acid, fumaric acid and malic acid and screening the materials with a 60-mesh sieve; mixing the materials and a lactic acid adsorbate; and adding a coating agent into a high-efficiency mixer granulator for coating and granulating to obtain the finished product. The acidifier prepared by the method is combination of organic acids, so that the releasing of the acidifier can be slowed down. The granules are coated with protective films, so that thecontact with an alkaline substance in the feed is reduced and the acidification effect of the granules is enhanced. The organic acid and other antibacterial substances can be produced by promoting the growth and mass propagation of beneficial bacteria such as lactobacillus and the like, so that the pH value in the gastrointestinal tract is further reduced and the growth of harmful bacteria is suppressed. The organic acid gradually released in the alimentary canal has a complexing effect; and the absorption in small intestine can be promoted after the organic acid is complexed with trace elements in the feed.
Owner:WUXI ZHENGDA POULTRY
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