摘要:
A water-soluble cutting fluid for slicing silicon ingots is characterized in that it includes a monoprotic or diprotic aliphatic carboxylic acid (A) having a carbon number (including the carbon in the carbonyl group) of 4˜10, and either a polyprotic organic acid (B) with ΔpKa of 0.9˜2.3 as defined by the following formula (1) or a salt (BA) of said organic acid (B) as essential components: ΔpKa=(pKa2)−(pKa1) (1) wherein the dissociation stage, at which the organic acid (B) denoted as n-protic acid HnA, becomes Hn-1A+H+ is numbered 1 with an acid dissociation constant expressed as pKa1, and the dissociation stage at which the organic acid (B) becomes Hn-2A+H+ is numbered as 2 with an acid dissociation constant expressed as pKa2.
摘要翻译:用于切片硅锭的水溶性切削液的特征在于它包括具有4〜10的碳数(包括羰基中的碳)的单质或双性脂肪族羧酸(A),以及多价有机酸 (B)具有如下式(1)所定义的0.9〜2.3的pKa或所述有机酸(B)的盐(BA)作为必要成分:&Dgr; pKa =(pKa2) - (pKa1)(1 ),其中以n-质子酸HnA表示的有机酸(B)变为Hn-1A + H +的解离阶段以酸性解离常数表示为pKa1,并且有机酸( B)变为Hn-2A + H +被编号为2,酸解离常数表示为pKa2。
摘要:
A water-soluble cutting fluid for slicing silicon ingots is characterized in that it includes a monoprotic or diprotic aliphatic carboxylic acid (A) having a carbon number (including the carbon in the carbonyl group) of 4˜10, and either a polyprotic organic acid (B) with ΔpKa of 0.9˜2.3 as defined by the following formula (1) or a salt (BA) of said organic acid (B) as essential components: ΔpKa=(pKa2)−(pKa1) (1) wherein the dissociation stage, at which the organic acid (B) denoted as n-protic acid HnA, becomes Hn-1A+H+ is numbered 1 with an acid dissociation constant expressed as pKa1, and the dissociation stage at which the organic acid (B) becomes Hn-2A+H+ is numbered as 2 with an acid dissociation constant expressed as pKa2.
摘要:
The present invention has its object to provide a lubricating oil for ship propulsor bearings which is high in bearing-damaging pressure, equivalent in lubricity and anticorrosiveness to the conventional mineral oil-based lubricating oils, higher in biodegradability than in the art and miscible with seawater. The present invention provides a lubricating oil for ship propulsor bearings which comprises a water-soluble alkylene glycol and/or polyalkylene glycol (A) with a number average molecular weight of not higher than 1,000 as a base oil as well as a water-soluble thickening agent (B) and a water-soluble anticorrosive agent (C) and in which the content of (A) is 80 to 98% by weight, that of (B) is 1 to 10% by weight and that of (C) is 1 to 10% by weight, relative to the weight of the lubricating oil for ship propulsor bearings and the bearing-damaging pressure at 50° C. is not lower than 3.5 MPa.
摘要:
To provide a novel process for producing p-dichlorobenzene satisfying both of high selectivity of p-dichlorobenzene and high conversion of chlorine at the same time.A process for continuously producing p-dichlorobenzene, which is a process for producing p-dichlorobenzene by a nuclear chlorination reaction of benzene and/or chlorobenzene with chlorine, in the presence of a Lewis acid catalyst and a phenothiazine analogue compound, said process comprising; employing a reactor having a first supply route for continuously supplying a mixed solution of benzene and/or chlorobenzene and a Lewis acid catalyst to a reactor, a second supply route for continuously supplying a mixed solution of benzene and/or chlorobenzene and a phenothiazine analogue compound to the above reactor, and a third supply route for continuously supplying chlorine to the above reactor; and supplying these raw materials for the reaction by opening the above first supply route and third supply route in random order at the initiation of reaction, and then opening the above second supply route.
摘要:
A rubber composition for a tire containing 100 parts by weight of a rubber, 1 to 30 parts by weight of a polyether (E1) having the formula (I): R1—{(OCH2CH2CH2CH2)m(OA)n—OH}q (I) wherein R1 is a residue of a C1 to C24 compound having 1-6 hydroxyl groups, from which at least one hydroxyl group is removed, A Ls a C2 to C24 alkylene group other than a 1,4-butylene group, q is an integer of 1 to 6, and m and n are independently integers of 1 to 600, and/or the derivative thereof (E2) and 10 to 180 parts by weight of a filler, which is excellent in processability, silica dispersability abrasion resistance and wet braking performance, etc.
摘要:
To provide a novel process for producing p-dichlorobenzene satisfying both of high selectivity of p-dichlorobenzene and high conversion of chlorine at the same time.A process for continuously producing p-dichlorobenzene, which is a process for producing p-dichlorobenzene by a nuclear chlorination reaction of benzene and/or chlorobenzene with chlorine, in the presence of a Lewis acid catalyst and a phenothiazine analogue compound, said process comprising; employing a reactor having a first supply route for continuously supplying a mixed solution of benzene and/or chlorobenzene and a Lewis acid catalyst to a reactor, a second supply route for continuously supplying a mixed solution of benzene and/or chlorobenzene and a phenothiazine analogue compound to the above reactor, and a third supply route for continuously supplying chlorine to the above reactor; and supplying these raw materials for the reaction by opening the above first supply route and third supply route in random order at the initiation of reaction, and then opening the above second supply route.
摘要:
A request heat calculation unit calculates a request heat power requested to heat sources to supply. A heat cost calculation unit calculates a relationship between a heat power supplied from each of the heat sources and a heat cost, which is a fuel quantity consumed to supply a unit heat power. An abnormal source detection unit detects an abnormal heat source, which cannot normally supply a heat power, from the heat sources. An abnormal heat calculation unit calculates an abnormal heat power supplied from the abnormal heat source. A determination unit determines distribution of heat power supplied from the heat sources based on both the relationship and the abnormal heat power, such that a sum of the heat power supplied from the heat sources coincides with the request heat power, and the heat cost of all the heat sources is minimized.
摘要:
The present invention has its object to provide a lubricating oil for ship propulsor bearings which is high in bearing-damaging pressure, equivalent in lubricity and anticorrosiveness to the conventional mineral oil-based lubricating oils, higher in biodegradability than in the art and miscible with seawater. The present invention provides a lubricating oil for ship propulsor bearings which comprises a water-soluble alkylene glycol and/or polyalkylene glycol (A) with a number average molecular weight of not higher than 1,000 as a base oil as well as a water-soluble thickening agent (B) and a water-soluble anticorrosive agent (C) and in which the content of (A) is 80 to 98% by weight, that of(B) is 1 to 10% by weight and that of(C) is 1 to 10% by weight, relative to the weight of the lubricating oil for ship propulsor bearings and the bearing-damaging pressure at 50° C. is not lower than 3.5 MPa.
摘要:
A rubber composition for a tire containing 100 parts by weight of a rubber, 1 to 30 parts by weight of a polyether (E1) having the formula (I): R1-{OCH2CH2CH2CH2)m(OA)n—OH}q (I) wherein R1 is a residue of a C1 to C24 compound having 1-6 hydroxyl groups, from which at least one hydroxyl group is removed, A Ls a C2 to C24 alkylene group other than a 1,4-butylene group, q is an integer of 1 to 6, and m and n are independently integers of 1 to 600, and/or the derivative thereof (E2) and 10 to 180 parts by weight of a filler, which is excellent in processability, silica dispersability abrasion resistance and wet braking performance, etc.
摘要翻译:一种用于轮胎的橡胶组合物,其包含100重量份的橡胶,1至30重量份的具有式(I)的聚醚(E1):<?在线配方描述=“在线配方”末端 =“铅”→R 1 - (OCH 2)2 CH 2 CH 2 CH 2 2 < (OA)n(OH)n(OH)n(i)<?in-line-formula description =“In-line 式“end =”tail“?>其中R 1是具有1-6个羟基的C 1至C 24 H 12的化合物的残基 从其中除去至少一个羟基,除了1,4-亚丁基以外的A Ls a C 2〜C 24亚烷基,q是 1〜6,m和n独立地为1〜600的整数,和/或其衍生物(E2)和10〜180重量份的加工性,二氧化硅分散性耐磨性和湿制动性能优异的填料 等等
摘要:
The present invention provides a lubricant for water-based metal working oil containing polyether (E) represented by the following general formula (1) and having an HLB of 6.1 to 16.0 and a weight-average molecular weight of 500 to 10,000 R1[{(OCH2CH2CH2CH2)m/(OA1)n}(OA2)p—OH]q (1) [in the formula, R1 denotes a residue such that at least one hydroxyl group is removed from a compound with a carbon number of 1 to 24 having 1 to 6 hydroxyl group(s); A1 denotes an alkylene group with a carbon number of 2 to 4 except a 1,4-butylene group; A2 denotes an alkylene group with a carbon number of 2 to 4; m denotes an integer of 1 or more having an average of 1 to 120; n and p each denotes an integer of 0, 1 or more such that an average of (n+p) is 1 to 200, and n and p are not simultaneously 0; q denotes an integer of 1 to 6; and {(OCH2CH2CH2CH2)m/(OA1)n} in a case where n is an integer of 1 or more denotes a random bond], and water-based metal working oil containing said lubricant. They are superior in lubricity to steel materials as well as, particularly, lubricity to soft metal such as aluminum, and excellent because of stability on dilution with water and non-separation property.