C07D251/04

HYDROGEN SULPHIDE AND MERCAPTANS SCAVENGERS

The present invention relates to a compound of formula (I):

##STR00001##

wherein

R is a radical selected from a linear, branched or cyclic hydrocarbyl group optionally comprising one

or more heteroatoms, such as oxygen, sulfur, halogen, silicon, nitrogen atoms, and its use as a hydrogen sulphide and/or mercaptans scavenger in hydrocarbon compositions and in water-based compositions such as water-based drilling fluids.

Lithium-ion battery and apparatus

The present application provides a lithium-ion battery and an apparatus, and the lithium-ion battery includes an electrode assembly and an electrolytic solution, the electrode assembly includes a positive electrode sheet, a negative electrode sheet and a separation film. A positive active material of the positive electrode sheet includes Li.sub.x1Co.sub.y1M.sub.1-y1O.sub.2-z1Q.sub.z1, 0.5x11.2, 0.85y11.0, 0z10.1 M is selected from one or more of Al, Ti, Zr, Y, and Mg, and Q is selected from one or more of F, Cl, and S. The electrolytic solution contains vinylene carbonate, fluoroethylene carbonate, 1,3-propane sultone, and an additive A. The additive A is a polynitrile six-membered nitrogen-heterocyclic compound with a relatively low oxidation potential. The lithium-ion battery has superb cycle performance and storage performance, especially under high-temperature and high-voltage conditions.

Lithium-ion battery and apparatus

The present application provides a lithium-ion battery and an apparatus, and the lithium-ion battery includes an electrode assembly and an electrolytic solution, the electrode assembly includes a positive electrode sheet, a negative electrode sheet and a separation film. A positive active material of the positive electrode sheet includes Li.sub.x1Co.sub.y1M.sub.1-y1O.sub.2-z1Q.sub.z1, 0.5x11.2, 0.85y11.0, 0z10.1 M is selected from one or more of Al, Ti, Zr, Y, and Mg, and Q is selected from one or more of F, Cl, and S. The electrolytic solution contains vinylene carbonate, fluoroethylene carbonate, 1,3-propane sultone, and an additive A. The additive A is a polynitrile six-membered nitrogen-heterocyclic compound with a relatively low oxidation potential. The lithium-ion battery has superb cycle performance and storage performance, especially under high-temperature and high-voltage conditions.

Process for producing substituted methylamine compound and triazine derivative
09926274 · 2018-03-27 · ·

The present invention provides a process that enables a substituted methylamine compound which is useful as an intermediate for the production of agricultural chemicals and medicines, to be produced easily, with good yield, and at low cost, and also provides a production intermediate thereof. The process comprises a step of reacting a hexamethylenetetraammonium salt compound represented by a formula (I) with a base to obtain an N-methylidene-substituted methylamine oligomer represented by a formula (II) or a mixture of two or more of the oligomers, and a step of hydrolyzing the N-methylidene-substituted methylamine oligomer represented by formula (II) or the mixture of two or more of the oligomers in the presence of an acid. ##STR00001##
(wherein A represents an organic group, R represents a hydrogen atom, or an organic group, L represents a halogen atom and the like, and n represents an integer of 2 to 20).

Process for producing substituted methylamine compound and triazine derivative
09926274 · 2018-03-27 · ·

The present invention provides a process that enables a substituted methylamine compound which is useful as an intermediate for the production of agricultural chemicals and medicines, to be produced easily, with good yield, and at low cost, and also provides a production intermediate thereof. The process comprises a step of reacting a hexamethylenetetraammonium salt compound represented by a formula (I) with a base to obtain an N-methylidene-substituted methylamine oligomer represented by a formula (II) or a mixture of two or more of the oligomers, and a step of hydrolyzing the N-methylidene-substituted methylamine oligomer represented by formula (II) or the mixture of two or more of the oligomers in the presence of an acid. ##STR00001##
(wherein A represents an organic group, R represents a hydrogen atom, or an organic group, L represents a halogen atom and the like, and n represents an integer of 2 to 20).

METHOD OF REDUCING HYDROGEN SULFIDE LEVELS IN GASEOUS MIXTURES USING TRIAZINES
20180044598 · 2018-02-15 ·

The present invention relates to a scavenging composition capable of scavenging a wide variety of sulfur-bearing compounds, such as hydrogen sulfide and method of use thereof. Said scavenging composition comprises an aqueous solution of a triazine compound, an anionic surfactant, and optionally an alcohol and/or glycol ether solution. The composition may be used in any kind of sulfide-scavenging operation and is particularly useful for sulfide scavenging in the context of sulfide removal from oil or gas streams and in the treatment of oil or gas transmission lines or equipment.

Conversion of glycolaldehyde with an aminating agent

A process for the conversion of glycolaldehyde with an aminating agent in the presence of hydrogen and of a catalyst in a glycolaldehyde conversion reactor, wherein one or more organic carboxylic acids are fed into the glycolaldehyde conversion reactor.

Conversion of glycolaldehyde with an aminating agent

A process for the conversion of glycolaldehyde with an aminating agent in the presence of hydrogen and of a catalyst in a glycolaldehyde conversion reactor, wherein one or more organic carboxylic acids are fed into the glycolaldehyde conversion reactor.

Lithium-ion battery and apparatus

The present application provides a lithium-ion battery and an apparatus, the lithium-ion battery includes an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode sheet, a negative electrode sheet and a separation film. The positive active material in the positive electrode sheet includes Li.sub.x1Co.sub.y1M.sub.1-y1O.sub.2-z1Q.sub.z1, 0.5x11.2, 0.8y1<1.0, 0z10.1, and M is selected from one of Al, Ti, Zr, Y, and Mg, and Q is selected from one or more of F, Cl, and S. The electrolyte contains an additive A and an additive B, the additive A is a polynitrile six-membered nitrogen-heterocyclic compound with a relatively low oxidation potential, and the additive B is an aliphatic dinitrile or polynitrile compound with a relatively high oxidation potential. The lithium-ion battery of the present application has superb cycle performance and storage performance, especially under high-temperature and high-voltage conditions.

COMPOSITIONS AND METHODS FOR DELIVERING MOLECULES
20250025428 · 2025-01-23 · ·

Compositions comprising mRNA, self-amplifying mRNA (sa-mRNA), modified mRNA, or circular RNA constructs comprising a gene-of-interest, and lipids and LNPs for use in therapy are disclosed. A method of delivering a payload to immune cells ex vivo by contacting immune cells with a lipid nanoparticle (LNP) encapsulating a payload encoding at least one polypeptide of interest, wherein the polypeptide of interest is an antigen receptor or an antibody.