31 results about "Symclosene" patented technology

The production process of chlorinated isocyanuric acid is characterized by that it makes the chlorine gas pass through solid carbonate or solid bicarbonate powder to obtain mixed gas, and introduces the mixed gas into suspensoid of cyanuric acid or monosodium cyanurate to make reaction and obtain symclosene or sodium dichloroisocyanurate. Said ivnented process can produce pure chloride-free chlorinated isocyanuric acid, its product colour is good, and the residuum produced after reaction of carbonate or bicarbonate and chlorine gas is another product.

The invention discloses a planting method for rice paddy. The method comprises the following steps: reclaiming wasteland; building a terraced field; constructing a first ridge and digging a ditch; constructing a second ridge, digging a first water port and digging a second water port; settling land; opening the second water port, soaking the planting land, opening the first water port on the second ridge, draining water into the ditch, covering the modified soil and then turning soil over, wherein the modified soil is formed by mixing rotten mixture with mixed soil material; soaking seeds and accelerating germination, adding symclosene sodium aqueous solution into the seeds, adding chitosan and soaking the seeds, cleaning with clean water, keeping temperature at 30-32 DEG C and accelerating rice sprout; culturing the seedlings; transplanting rice seedlings; managing the field and harvesting. According to the method provided by the invention, the ditch, the first water port and the second water port are arranged, the first water port and the second water port can be selectively opened according to different water requirements in different stages of the rice planting process, the redundant water is stored in the ditch, the gravity of the water in the ditch is utilized to irrigate the corresponding next planting land, and the manpower and material resources are saved.

The chemical compound for sewage treatment consists of aluminum chloride polymer 94-98 wt% and iron trichloride 2-6 wt%. Here, aluminum chloride polymer may be replaced with iron sulfate polymer; and polyacrylamide, copper dichloride, symclosene, etc. may be also added into the chemical compound for suiting varying sewage. The chemical compound may be recovered for reuse, and has low water treating cost. The treated water can reach GB / 14848-2001V standard.

The invention discloses a method for synthesizing chiral N1-allyl pyrimidine by asymmetric allyl reaction, and belongs to the field of asymmetric synthesizing. The method is characterized in that N3-protected pyrimidine and allyl carbonate are used as the raw materials, [Rh(COD)Cl]2 is used as a catalyst, DTBM-Segphos or DTBM-MeOBIPHEP is used as a chiral ligand, and the chiral N1-allyl pyrimidine is obtained after reaction, so that the yield rate is medium to excellent.

A composite disinfectant dedicated for the culture of aquatic products includes disinfectants A, B and C. The disinfectant A contains trichloroisocyanic acid, sodium sulfate and sodium dicarbonate. The disinfectant B contains sodium (potassium or amonium) bromide, sodium chloride and potassim iodide. The disinfectant C contains sodium hydrogen sulfate, sodium citrate and aluminium sulfate. Its advantage is high disinfecting effect.

A method for in-situ chemical treatment and remediation of heavily-polluted black and odorous water bottom mud comprises the following steps that firstly, a saturated sodium carbonate solution is added into the black and odorous water bottom mud; secondly, a sodium percarbonate working solution is added into the black and odorous water bottom mud; thirdly, symclosene is added into black and odorous water; fourthly, non-ionic polyacrylamide is added into the black and odorous water so that the ecological transparence of the black and odorous water can be larger than 40 cm. According to the method, the environment-friendly chemicals of sodium carbonate, sodium silicate, manganese dioxide, sodium percarbonate, sodium symclosene and polyacrylamide are adopted, singles and compounds are used in combination, biological degradation and abiotic degradation are combined, a heavily-polluted water area is subjected to comprehensive ecological remediation, black and odorous bottom mud organic matter of the polluted water is subjected to in-situ remediation by increasing dissolution oxygen, the chemical regents can take effect fast after being added into the water, the black and odorous phenomenon in the water can be relieved in a short time, the adding mode is simple, the environment-friendly chemicals are used, secondary pollution to the water is avoided, and toxicity is very low.

The invention discloses a novel copper / iridium synergistically catalyzed allylation / 2-aza-Cope rearrangement reaction involving the participation of methyleneamine ylides to synthesize chiral multi-substituted homoallylamine derivatives. The method is as follows: in an organic solvent, under the protection of an inert gas, using allyl carbonate and amino acid-derived imine as raw materials, using copper complex and iridium complex as co-catalysts, adding cesium carbonate, at 25 ° C React at high temperature for 12-24 hours, add a high boiling point solvent at 25-100°C and continue to react for 4-24 hours, after hydrolysis, protection and other post-treatments, the target compound is obtained by column chromatography.

The invention relates to a composite disinfectant used on silkworm, formed by symclosene and tertiary sodium phosphate, wherein, the mass ration between the symclosene and tertiary sodium phosphate is 40-70:60-30. When in use, the disinfectant is diluted by water into 200-1600 times. The inventive disinfectant can disinfect the causal agent of silkworm, less excite smell, low corrosion, high stability, and long durable period. The inventive solution is transparent with low degrade speed of effective chlorine.