Abstract:
A method for preparing copper-containing mixed metal oxide is provided to offer the copper-containing mixed metal oxide with a particle size of 200nm or less, a uniform particle shape and narrow particle size distribution and to offer a manufacturing method of saturation system aliphatic alcohol. A method for preparing a copper-containing mixed metal oxide comprises the following steps of: manufacturing a mixed solution containing a metal precursor consisting of a copper precursor and one or more selected from a chrome precursor, an aluminum precursor, and a barium precursor and a molding material; manufacturing a co-precipitation material by injecting a precipitation agent in the mixed solution; and manufacturing copper-containing mixed metal oxide by drying and plasticizing the obtained co-precipitation material.
Abstract:
The present invention relates to a production method of high purity dimer acid methylester in high yield by performing a conjugation reaction of animal and vegetable oil or waste oil derived fatty acid methylester for facilitating the conjugation of the unsaturated fatty acid methylester and improving reactivity, and by removing the non-reaction saturated fatty acid methylester through distilling. [Reference numerals] (AA) Conjugation fatty acid methyl ester;(BB) Fatty acid methyl ester
Abstract:
PURPOSE: An anionic multi-chain type surfactant using alkali metal salt of 1,5-dialkoxymethyl-3-aza-3-methyl-1,5-pentanedisulfuric acids and a manufacturing method thereof are provided to form micelle at 30-90 times lower concentration than sodium lauryl sulfate. CONSTITUTION: An anionic multi-chain type surfactant has a structure marked as chemical formula 1. In the chemical formula 1, R1 and R2 respectively indicate C1-C30 linear alkyl or branched alkyl, and M is selected from alkali metal. The alkyl can include unsaturated bond and substitute for fluorine or aromatic ring. The anionic multi chain type surfactant has 20-80ppm range of critical micelle concentration value and 72-80 range of HLB value.
Abstract:
PURPOSE: A polymer composition is provided to efficiently prepare polymers using specific monomers and to ensure higher calcium ion sequestering effects than existing polyacrylic acids. CONSTITUTION: A polymer composition for sequestering calcium ions comprises a monomer of chemical formula 1 and a (meth)acrylic acid monomer. In chemical formula 1, R1 is hydrogen or methyl and n is 1~10. In chemical formula 2, R2 is hydrogen or methyl, and R3 is hydrogen, sodium, potassium or ammonium. The polymer composition further includes one or two or more selected from maleic acid, maleic anhydride, and 2-methoxypolyethoxyethyl (meth)acrylate.
Abstract:
A manufacturing method of zinc-comprising mixed metal oxide is provided to form uniform particles by using a distributed system and to manufacture method of producing a catalytic of the mixed metal oxide containing a zinc of which an average diameter mostly is less than 200 nm. A mixed solution containing a metal precursor and a molding material is manufactured. The metal precursor is made of one or more materials and a zinc precursor. The one or more materials are selected from chrome precursor, aluminum precursor or a barium precursor. The coprecipitation material is manufactured by injecting precipitation agent into the mixed solution. A zinc-comprising mixed metal oxide of a chemical formula 1 (Zn_a-Cr_b-Al_c-Ba_d-O_e) is manufactured by drying and plasticizing the obtained coprecipitation material. In the chemical formula 1, a is a molar ratio of a Zn atom, B is a molar ratio of a Cr atom, C is a molar ratio of an Al atom, D is a molar ratio of a Ba atom and E is a molar ratio of an O atom.
Abstract:
본 발명은 두개 혹은 세개의 소수기와 두개의 친수기를 한 분자 내에 가지고 있어 고성능 제미니형 계면활성제의 원료로 사용될 수 있는 N,N-비스(3-알킬옥시-2-히드록시프로필)알킬아민 화합물의 효율적인 제조방법에 관한 것으로서, 더욱 상세하게는 1°알킬아민과 알킬글리시딜에테르를 반응시켜 N,N-비스(3-알킬옥시-2-히드록시프로필)알킬아민 화합물을 효율적으로 제조하는 방법에 관한 것으로, 본 발명에 따른 제조방법은 별도의 용매나 촉매를 사용하지 않고도 고수율과 고순도로 N,N-비스(3-알킬옥시-2-히드록시프로필)알킬아민을 제조할 수 있는 장점이 있다. 제미니형 계면활성제, 1°알킬아민, 글리시딜에테르, 2쇄형디올, 3쇄형디올