摘要:
Anaerobic fermentation of substrates with microorganisms is carried out by a process and with an apparatus wherein fermentation is conducted in a container having an upper cylindrical section, a lower conical section, and between the upper and lower sections an apertured bottom wall containing a plurality of openings. During fermentation, the substrate and microorganisms are recirculated from an outlet in the upper cylindrical section to an inlet in the lower conical section and upward in the container through the openings in the apertured bottom wall at sufficient fluid velocity to agitate the substrate and microorganisms therein and prevent settling of the microorganisms in the container. The apertured bottom wall serves as the sole means of agitation, and the use of this process and apparatus enables a significant reduction in the usual fermentation period.
摘要:
Preparations with deodorizing action are provided. The preparations include the zinc salt of ricinoleic acid; amino-functional amino acids; solubility promoters; organic and/or inorganic acids; and, optionally, water.
摘要:
The invention relates to aqueous detergent concentrates based on nonionic, anionic, amphoteric surfactants, with or without the use of customary auxiliaries and additives, said concentrates comprising as cleaning enhancers at least one sorbitan ester of the general formula (I) where R can be an optionally branched, optionally substituted and/or heteroatom-containing saturated or unsaturated acyl radical having 6 to 22 carbon atoms, R1 and R2 independently of one another can be hydrogen or R, Alk is at least one radical from the group consisting of ethylene-, isopropylene- and butylene-, and a, b and c independently of one another can be values between 0 to 25, where the sum of a+b+c=0 to 25.
摘要翻译:本发明涉及基于非离子,阴离子,两性表面活性剂的含水洗涤剂浓缩物,具有或不使用常规助剂和添加剂,所述浓缩物包含作为清洁增强剂的至少一种通式(I)的脱水山梨糖醇酯,其中R可以是 具有6-22个碳原子的任选支链,任选取代和/或含杂原子的饱和或不饱和酰基彼此独立地可以是氢或 R,Alk是由乙烯 - ,异丙烯 - 和丁烯 - 组成的组中的至少一个基团,a,b和c彼此独立的基团可以是0至25之间的值,其中a + b + c = 0到25。
摘要:
Aqueous detergent concentrates for rough, especially profiled tiles and flags, based on nonionic, anionic, amphoteric surfactants, with or without the use of customary auxiliaries and additives, said concentrates comprising quaternary alkoxylated amine compounds as cleaning enhancers.
摘要:
The invention relates to emulsifier mixtures for preparing water-soluble polymers by inverse emulsion polymerization of corresponding monomers or monomer mixtures, to a process for preparing the water-soluble polymers, and to the monomer/water-in-oil emulsions thus obtained. The emulsifier mixture comprises glycerol monooleate and one or more diacetyltartrates of fatty acid glyceride.
摘要:
The invention relates to a low-viscosity alkaline cleaning emulsion comprising glyceryl trioleate or oleic acid, a nonionic emulsifier, an amine oxide, a hydrotrope, aqueous alkali metal hydroxide solution, a complexing agent and water, wherein the emulsifier is the reaction product of an ethoxylated glyceryl triricinoleate and oleic acid.
摘要:
A closed remelting furnace 1 includes a vertical furnace axis A-A, an electrode supporting rod 15 for a consumable electrode 23, a furnace body 29 which has a driving mechanism for the electrode supporting rod and several furnace lower portions 6, 7 each of which has an ingot mold 9 including an ingot mold axis K-K. A furnace upper portion 11 and the furnace lower portions can individually, if desired, be aligned by means of a lateral relative movement. Through a sealed passage the electrode supporting rod is passed through a top limiting wall 16 of the furnace upper portion 11. In order to reduce the total height and labor and cost involved in design and construction the furnace upper portion 11 is subdivided in two partial segments 13, 19 along a horizontal separating groove. The upper partial segment 13 is configured so as to be short as compared to the total height of the furnace upper portion and constantly associated with the electrode supporting rod 15 and the lower partial segment 19 can be moved out of the area of the furnace axis A-A by means of transporting device.
摘要:
A method of aerating liquids, particularly for aerobic growing of microorganisms, has the steps of forming a circumferential stream of liquid, forming a longitudinal stream of liquid, and superimposing these streams so as to form a combined closed spiral-shaped stream. An arrangement is provided in which the circumferential stream is formed by an upright conduit tube and an impeller, the longitudinal stream is formed by a distributing element with a plurality of nozzles, and the superimposing of the streams is attained by fixedly mounting the distributing element relative to the impeller.