摘要:
Disclosed in a method for producing a mixture containing cycloalkanone and/or cycloalkanol which comprises oxidizing a cycloalkane with molecular oxygen to a cycloalkyl hydroperoxide represented by the formula (1): ##STR1## (wherein m represents an integer of 4.ltoreq.m.ltoreq.11) and decomposing the cycloalkyl hydroperoxide to obtain a mixture containing cycloalkanone and/or cycloalkanol, wherein the oxidation of the cycloalkane with molecular oxygen and/or the decomposition of the cycloalkyl hydroperoxide are carried out in the presence of a catalyst composition comprising at least one metallic salt represented by the formula (2):MX.sub.n (2)(wherein M represent Co, Mn, Cr or Fe, X represents an anionic ligand and n represents 2 or 3) and at least one compound represented by the formula (3): ##STR2## (wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent hydrogen or a lower alkyl group) and/or a catalyst composition comprising at least one metal complex represented by the formula (4): ##STR3## (wherein M represents Co, Mn, Cr or Fe, X represents an anionic ligand, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent hydrogen or a lower alkyl group, p is 1 or 2 and q is 0, 1 or 2).Advantages of the method are higher conversion of cycloalkyl hydroperoxide, higher yields of cycloalkanone and cycloalkanol and higher production ratio of cycloalkanone.
摘要翻译:本发明涉及制备含有环烷酮和/或环烷醇的混合物的方法,该方法包括用分子氧将环烷烃氧化为由式(1)表示的环烷基氢过氧化物:其中m表示4的整数, = m 11)并分解环烷基氢过氧化物以获得含有环烷酮和/或环烷醇的混合物,其中环烷烃与分子氧的氧化和/或环烷基氢过氧化物的分解在催化剂存在下进行 包含至少一种由式(2)表示的金属盐的组合物:MXn(2)(其中M表示Co,Mn,Cr或Fe,X表示阴离子配体,n表示2或3)和至少一种由 式(3):其中R1,R2,R3和R4独立地表示氢或低级烷基)和/或包含至少一种由式(4)表示的金属络合物的催化剂组合物: (图) 4)(其中M表示Co,Mn,Cr或Fe,X表示阴离子配体,R1,R2,R3和R4独立地表示氢或低级烷基,p为1或2,q为0,1或2) 。 该方法的优点是环烷基氢过氧化物的转化率较高,环烷酮和环烷醇的产率较高,环烷酮的生产率较高。
摘要:
A polishing work holder for supporting a lens to be polished for use in a lens polishing machine is disclosed. The work holder comprises a holder body rotatably supported by a housing and having a recess portion formed on a rotating shaft of one end face thereof and a suction hole opened at the end face, a lens receptacle having a hole communicated with the suction hole to suck and hold a lens at one end surface, a spherical body intervened between the recess portion of the holder body and the lens holder so as to contact the another end face and for carrying the lens receptacle tiltably and movably in the crossing direction to the axis of the holder body, a fitting ring secured to the holder body concentrically and loosely fitted onto an outer periphery face of the lens or an outer periphery face of the lens receptacle so as to limit the tilting of the lens and the moving in the diametrical direction, and a sealing member provided between the holder body and the receptacle at outside of the suction hole.
摘要:
An apparatus for controlling the machining of optical elements is disclosed. The apparatus comprises the thus measured value of radius curvature with the measured value of radius curvature of previously polished lens, means for determining curvature correcting value by comparing the thus obtained curvature variation value with a previously set allowed value of radius curvature, means for determining correcting value of machining conditions during the swinging motion based on the thus determined curvature correcting value, and means for adjusting the machining conditions in accordance with the correcting value of machining conditions.
摘要:
A holding device for holding an optical element to be ground is arranged such that pressure applied to a receiving face of the optical element on the holder base is made different in the radial direction in order to eliminate deformation, positional deviation or inclination of the optical element due to grinding resistances during grinding or due to high-pressure grinding. An elastic member is employed as an elastic member, or a receiving member capable of absorbing the positional deviation, the inclination, or the like of the optical element during grinding thereof is used.
摘要:
A spherometer for measuring the radius of curvature of 1 lens is disclosed. The spherometer comprises a spherometer ring having an annular portion or a part of an annular portion, a measuring member coaxially secured to the spherometer ring, a supporting member for supporting the spherometer ring, and a tilt facilitating member interposed between the spherometer ring and the ring supporting member.