179 results about "Phosphite salt" patented technology

Dithiocarbamate and phosphite containing fertilizers, as well as methods of making and methods of using these fertilizers, are disclosed.

The process and catalyst of this invention can be utilized to synthesize homo and copolymers of conjugated diene monomers and vinyl aromatic monomers having high trans contents of greater than 60% with low melting points. These homo and copolymers of conjugated diene monomers and vinyl aromatic monomers can be utilized in tire tread and sidewall rubbers that exhibit outstanding wear and tear characteristics in the tread and excellent flexing properties in the sidewall. The rubber polymers of this invention are made utilizing an improved catalyst system. This catalyst system is comprised of (a) organo aluminum compounds, (b) organo lithium compounds, (c) a barium compound selected from barium salts of (i) di(ethylene glycol) ethyl ether, (ii) di(ethylene glycol) propyl ether, (iii) di(ethylene glycol) hexyl ether, (iv) di(N,N-dimethyl amino glycol) ethyl ether, (v) menthol and thymol in the presence of polar modifier consisting of water, alcohols, amines, thiols, phosphates and phosphites. The trans polymers and copolymers of this invention made with the above catalyst system typically have a glass transition temperature ranging from −97° C. to −40° C., a melt temperature ranging from −30° C. to +30° C., and a number average molecular weight from 20,000 to 250,000. The inclusion of such polar modifiers in the barium catalyst system results in a high styrene content in copolymerization, a high trans content, and high molecular weight. Copolymers of conjugated diolefin monomers and vinyl aromatic monomers made with the catalyst system of this invention also have a tapered macrostructure.

The invention discloses escherichia coli expressing formamidase and phosphite dehydrogenase fusion protein, a construction method and application thereof. The method comprises the following steps: taking escherichia coli DH5 alpha engineering bacteria as a host, amplifying formamidase gene and phosphite dehydrogenase gene formed through cloning into fusion gene, then connecting the fusion gene toa multiple cloning site, transferring obtained recombinant plasmid into DH5 alpha, extracting plasmid and transferring the plasmid into an expression strain, and performing induction culture, so as toobtain the recombinant escherichia coli. The recombinant escherichia coli produces the formamidase and phosphite dehydrogenase fusion protein through expression, the fusion protein can decompose formamide to produce NH4<+> and oxidize phosphite to produce phosphate at the same time, and provides a nitrogen source and a phosphorus source required for growth and reproduction of recombinant escherichia coli engineering bacteria, while other microorganisms cannot grow and reproduce in an MOPS culture medium containing formamide and phosphite because the microorganisms do not have two paths, and the problem of contamination of escherichia coli during industrial fermentation is solved.

The invention is directed to various alkylaryl phosphite compositions that ideally are suitable for use as secondary antioxidants in polymers. In one aspect, the phosphite composition comprises a tris(dialkylaryl)phosphite in an amount from 20 to 93 weight percent; and at least one of: a bis(dialkylaryl)monoalkylaryl phosphite; a bis(monoalkylaryl)dialkylaryl phosphite; and a tris(monoalkylaryl)phosphite. The inventive phosphite composition is a solid at ambient conditions. The invention also relates to alkylate compositions and processes for forming such alkylate compositions and such phosphite compositions.

This water-based coolant is characterized by being obtained by mixing at least one of each of the following inorganic acid salts: phosphate, phosphite, sulphate, sulphite, borate, molybdate, tungstate, carbonate, hydrogen carbonate, and sesquicarbonate. This water-based coolant exhibits excellent cooling performance, and excellent anti-corrosion properties towards metal materials to be cooled therewith, and thus is suitable for use as a cutting fluid and a quenching fluid for metal materials.

A water soluble liquid fertilizer concentrate is provided that includes a bio-available phosphorus source, said phosphorus source consisting essentially of a phosphite salt. At least one of a bio-available nitrogen source and a bio-available potassium source are also provided. At least one micronutrient of calcium, magnesium, cobalt, iron, manganese, copper, boron, zinc, or molybdenum is present in the concentrate as an aqueous solute or soluble chelates. In some embodiments, the at least one phosphite salt is present at between 30 to 57 total weight percent dissolved in water and optionally contains a phosphate salt. A process of fertilizing a crop includes diluting the fertilizer concentrate with water to obtain a liquid fertilizer solution. The liquid fertilizer solution is then applied to the crop and after by allowing sufficient time, the fertilizer solution promotes growth of the crop.