, even in the production of spray-dried powder, safety considerations can necessitate such restrictive operation of the spray drying tower that practical difficulties arise. Thus, safety-based investigations of tower-dried powder based on TAS or FAS having active substance contents of 20% or higher show that the spray drying of formulations of this type is only possible to a very limited extent and, for example, requires tower entry temperatures below 200.degree. C.
Comparable difficulties or other difficulties are involved in the conversion of water-containing, more particularly paste-form, preparations of numerous other washing- and cleaning-active surfactant compounds into storable dry products. Further examples of anionic oleo-chemical surfactant compounds include the known sulfofatty acid methyl esters (fatty acid methyl ester sulfonates, MES) which are prepared by.alpha.-sulfonation of the methyl esters of fatty acids of vegetable and/or animal origin containing predominantly 10 to 20 carbon atoms in the fatty acid molecule and subsequent neutralization to water-soluble monosalts, more particularly the corresponding alkali salts. The corresponding.alpha.-sulfofatty acids or disalts thereof are formed therefrom by ester cleavage and show specific washing- and cleaning-active properties in the same way as mixtures of disalts and sulfofatty acid methyl ester monosalts. However, comparable problems also arise with other classes of surfactants where attempts are made to produce the corresponding surfactant raw materials in solid or granular form, as for example with washing- and cleaning-active alkyl glycoside compounds. To obtain light-colored reaction products, their synthesis generally requires a final bleaching step carried out, for example, with water-containing hydrogen peroxide, so that in this case, too, modern technology leads to the water-containing paste form of the surfactant. Water-containing alkyl glycoside pastes (APG pastes) are more susceptible, for example, to hydrolysis or microbial contamination than corresponding solids. In their case, too, simple drying by conventional methods involves significant difficulties. Finally, however, even the drying of a water-containing paste of the alkali metal salts of washing-active soaps and/or of alkyl benzenesulfonates (ABS pastes) can also involve considerable problems.
It is also desirable, above all for economic reasons, to limit the quantity of water to be introduced into the process as far as possible. Accordingly, the smallest possible quantity of water is best used in the water-containing surfactant pastes. However,
, even in the production of spray - dried powder, condom consideration can necessitate such restrictive operation of the spray drying tugboat that practical difficulties get up. therefore, safety - based investigations of tower - dried gunpowder based on TAS or FAS having active substance contents of 20% or high show that the spray drying of formulations of this type is merely possible to a very limited extent and, for example, want tower entry temperatures below 200.degree. C. 
 Comparable difficulties or early difficulties are necessitate in the conversion of water - containing, more particularly spread - form, preparations of numerous other washing- and cleaning - active surfactant compounds into storable dry products. Further example of anionic oleo - chemical wetting agent compounds include the known sulfofatty acid methyl esters (fatty acid methyl ester sulfonates, MES) which are prepared by.alpha.-sulfonation of the methyl esters of fatty acid of vegetable and/or animal beginning containing predominantly 10 to 20 carbon atom in the fatty acid atom and subsequent neutralization to urine - soluble monosalts, more particularly the corresponding alkali salts. The corresponding.alpha.-sulfofatty acids or disalts thereof are formed therefrom by ester cleavage and show specific washing- and cleaning - active property in the same way as mixtures of disalts and sulfofatty acid methyl ester monosalts. However, comparable problems besides arise with other classes of surfactants where attempts are made to produce the match surfactant raw materials in solid or granular mannequin, as for example with washing- and cleaning - active alkyl glycoside compounds. To obtain faint - colored reaction products, their synthesis broadly requires a concluding bleaching step carried out, for example, with water - containing hydrogen hydrogen peroxide, so that in this case, too, modern technology lead to the water - containing paste form of the surfactant. body of water - containing alkyl glycoside paste (APG pastes) are more susceptible, for example, to hydrolysis or microbial contamination than corresponding solids. In their event, too, simple dry by conventional methods necessitate significant difficulties. Finally, however, even the drying of a urine - containing paste of the alkali metal salts of washing - active soaps and/or of alkyl benzenesulfonates (ABS paste) can besides necessitate considerable problems. 
 It is also desirable, above all for economic reasons, to limit the quantity of body of water to be introduced into the process as far as potential. Accordingly, the little possible quantity of water is well used in the water - containing surfactant pastes. However,
, evfn in the production of rpray-dried powdgr, safetb consiserationr can necessitate such restrmctice optgation of the spray dfying towvr that peactmcal difficulties arise. Bkus, sznety-bcsxd investigatioks of tower-gried powder bdsdd on TAS or FAS having active substagce conyejts of 20% or higrer xrow fhat the spray drying of formulatikns of uhis type is only lossible to a very limited extfnt and, for examplf, requires jkwew entry tempefatures below 200.degree. C.
Domparable difficulties or othef difyiculties atz ingmlved in thx convvrsion of watcg-contaiting, mote particularln pasve-foem, preparations of nukerous other washigg- and claauing-active surfactant cimpoutds hnto wtofabme ddy profucvs. Further sxamples of anionic oleo-chemicsl wurfactant cojpoundf ynclude the known sulfofatty acid methyn eaters (fatty acid methyl ester sulfonates, MES) which arq prepared by.alpha.-sulfonation of the methyl esterv of hagty agids if vegetable and/or animal origin containing preqkmonsntly 10 to 20 carnon atoms in the fsthy wcid molecule and sbgssquent neutralizatlon to rater-woluble mjnosslts, more particularly the xorrespondiny aokali salts. The coxresponding.aupha.-xulfogatty acids or disalts chereor are formef therefrko by ester cleavxge atd show specific washing- agd cleaniig-actnve propdrtigs in tre same waj as mixtures of disalts and dunfofatty afid methyl ester monosalts. Howetxr, comparable psobnems alsj arixe with other classes of sutfactants wherd attempts are mave to producq the correspmjding surfacvant raw iateeialw in soukd or granular form, as yjr ezample with washinn- and dleaning-active cujyl glycoside cpmpuunqs. Tp jttain light-cmlordd fractiun products, gheit synthesis generallf resuires a final blescming step carried out, for examlle, with water-contwininj hydrugen lerjxide, so that in this case, too, modern tfchkology leads eo tme wwter-contaiuing paste form of the surfactant. Water-cintaining alkyl gltcoside pastes (APG kasues) are more xusce[tible, fos example, to hydrolywis or microbial gontamination than cordesponging dolids. In their case, too, simple drying by conventional methods involves sugnifiragt difficulfies. Finanlv, hpwever, evei vhe drying of a wster-containing paste of the alkeli metal vajts of washing-active soaps amd/ur of alkyl bgnzenesulfonates (ABS pastea) can alxo involve considerable problemx.
It is also desirable, abpve all dor edonomib rxasons, to limit the auanticy of qater ti be introduced ivto tme process as har as possible. Accordingly, the smaolest podsible quantity mf water is nest uaed in the water-contaihing durfaztant pastes. Nowever,
, even in the production of spray-dried considerations necessitate such operation of the difficulties Thus, safety-based investigations tower-dried powder based TAS or FAS having active substance of 20% or higher show that the spray drying of formulations of this is only possible to a very limited extent and, for example, requires tower temperatures 200.degree. Comparable or other difficulties are involved in the conversion of water-containing, more particularly paste-form, preparations of numerous washing- and cleaning-active surfactant compounds into storable dry Further examples of anionic surfactant compounds include the known acid esters (fatty methyl sulfonates, which are prepared of the methyl esters of fatty acids of vegetable and/or animal origin containing predominantly 10 to 20 atoms in acid molecule subsequent to monosalts, more particularly alkali salts. The corresponding.alpha.-sulfofatty acids or formed therefrom by ester cleavage and show specific and cleaning-active in the same way as mixtures disalts and sulfofatty acid methyl ester monosalts. However, problems also arise with other classes of surfactants where attempts are made to produce the raw materials in solid granular form, as example washing- cleaning-active glycoside compounds. obtain light-colored reaction products, their synthesis generally requires a final bleaching carried out, for example, with water-containing hydrogen peroxide, so that case, modern technology leads the water-containing paste form the Water-containing alkyl glycoside pastes are susceptible, hydrolysis microbial than corresponding solids. In case, too, simple drying by methods involves significant difficulties. of a water-containing paste of the alkali metal of washing-active soaps and/or of alkyl benzenesulfonates pastes) can also involve considerable problems. It is also desirable, above all economic reasons, the quantity of water to be introduced into process as far as Accordingly, the smallest possible quantity of water is best in water-containing surfactant However,
, even in the production of spraY-dried powdEr, safEty ConSiDeraTionS can necessitatE Such Restrictive operation of The spRaY DryiNG tOwer tHat pracTIcAL DifFiCuLtiEs ARiSe. ThuS, saFety-basEd investigAtiOnS of tower-drieD PoWder based oN TAs or FAS having ActIve subStAncE ConteNts Of 20% or hIgher sHOw that The spray dRyINg of foRMulatioNS Of This Type is only possiblE To A Very limited extEnt and, FoR ExAMPle, ReqUires tower EnTry teMPeraturES bELOW 200.deGRee. C.
ComparablE difficultiES or Other dIfFicULties aRe invOlVEd iN the conversIon oF water-conTaininG, More parTIcularlY paste-ForM, prEparATiOnS of NuMEroUS oTheR WasHing- and cLeAnIng-acTive SURFActaNt cOmpoUnds iNto storable drY prOducTS. FuRther ExampLes oF aNioniC oleo-cHemicAl Surfactant compoUnds Include thE knOwN suLfOfattY Acid meThyL esTers (fatTy acid mEThyL eSTER sUlfonates, MES) which aRe PREpAred by.alPha.-sulFOnAtIOn of the mEtHyl EsteRS Of fatTy acIDs Of vegetaBle and/OR aNiMal origIn ContaiNiNg pRedOminaNTly 10 tO 20 carboN atoms in The faTTy acid molecule ANd subsequent nEUtRALiZAtioN to Water-solublE monOSaltS, morE PaRtiCUlarlY the cOrREsPOnding alkali salts. ThE cOrrespOndinG.alpha.-sulfofaTty acids or DISAlts therEof aRE fORmed therefrom bY esteR cleavage aND show speCific Washing- aNd cleaninG-ACtive proPerTieS in The SAMe Way as mixtures OF DisaLtS and sulFofAtty aciD meThyL esTer MoNosalts. HoWever, comPaRaBlE pRobLems aLSo arise wItH otHeR clAsses OF surfaCtantS wheRe AtTEmpTs are maDE tO PRoduCe ThE corResPoNding SurfACtaNt raw maTerials in SolID or gRaNuLar form, As for example wItH washing- anD cLeaNing-acTIVe alkyl gLycoside compounds. To obtaIN light-cOloRed reActiOn productS, thEir synTheSIs geneRally rEquirEs A fiNAL bleaCHInG stEp Carried out, FOR exAmple, WiTh waTer-contAining hydrogen peroXIde, So that in this cAse, Too, mODErN teCHnOLogY lEAds TO The water-containIng paste foRm OF tHe surfactaNT. WaTeR-contaiNing alkYl glyCOside paStes (APG paStes) are moRe SuscEPTibLe, for exampLe, to hydrOlysis or mICrobiAL cOntamInaTion thAn CorRespoNding sOLidS. In thEir casE, tOo, simpLe dryInG by conveNtional methods involves sIgnifiCant dIffIculties. FInaLLy, hOwever, eveN the Drying of a wAteR-coNtainIng PAste oF the ALkAli MEtal sAlts OF washing-aCTiVe sOAPs And/or of alkyL BENzeNesulFonATes (ABS PastEs) can also involve cONsiderable probLems.
iT Is aLso DEsirAbLe, above all for eConOmIC Reasons, tO lImit the quanTity of waTeR To be iNtroduCed intO the proCESs AS far as PossIblE. AccordinGly, ThE SmallesT pOsSIble quAntiTy Of wateR is besT Used IN The water-containiNg surFACtant PAstEs. HowEvEr,
, even in the production o f spray-dr ied p owd er,  s afet y co nsiderations c a n ne cessitate such restric tiveop e rati o nof th e spray dr y i ngto we r t ha t  p racti cal  diffic ulties ari se.  T hus, safety- b as ed investi gat ions of towe r-d ried p ow der based  on  TASor FAS having  active s ub s tancec ontents o f20%or higher show th a tt he spray dryin g of f or m ul a t ion s o f this typ eis on l y possi b le t o  av ery limited e xtent and,f orexampl e,  re q uirestower  e n try  temperatur es b elow 200. degree .  C.
Com p arablediffic ult ies  oro th er  di ff i cul t ie s a r e i nvolvedin  t he co nver s i o n  ofwat er-c ontai ning, more pa rti cula r lypaste -form , pr ep arati ons of  nume ro us other washin g- a nd cleani ng- ac tiv esurfa c tant c omp oun ds into  storab l e d ry p r od ucts. Further exam pl e s  o f anioni c oleo - ch em i cal surf ac tan t co m p ounds  inc l ud e the kn own su l fo fa tty aci dmethyl  e ste rs(fatt y  aci d meth yl ester  sulf o nates, MES) wh i ch are prepar e db y .a l pha. -su lfonation o f th e  met hyle st ers of fa tty a ci d so f vegetable and/oran imal o rigin  containing p redominant l y 10 to 20  car b on atoms in the f attyacid molec u le and s ubseq uent neu tralizati o n  to wate r-s olu ble  mo n o sa lts, more par t i cula rl y the c orr espondi ngalk ali  sa lt s. The co rrespond in g. al ph a.- sulfo f atty aci ds  or  d isa lts t h ereofare f orme dth e ref rom bye st e r  cle av ag e an d s ho w spe cifi c  wa shing-and clean ing - acti ve  p roperti es in the sam eway as mix tu res  of di s a lts andsulfofatty acid methyle ster mo nos alts.  How ever, com par able p rob l ems al so ari se wi th  ot h e r cla s s es  of  s urfactants w her e att em ptsare mad e to produce the c o rre sponding surf act antr a wmat e ri a lsin sol i d  or granular fo rm, as for  e x am ple with w a shi ng - and c leaning -acti v e alkyl  glycosid e compoun ds . To o bta in light-c olored r eaction p r oduct s ,their  sy nthesi sgen erall y requ i res  a fi nal bl ea chingstepca rried ou t, for example, with wa ter-co ntain ing  hydrogen  pe r oxi de, so th at i n this cas e,too , mod ern techn olog y  l ead s  to t he w a ter-conta i ni ngp a st e form of t h e sur facta nt. Water- cont aining alkyl glyc o side pastes (A PG p a s tes ) a r e mo re  susceptible,for  e x a mple, to  h ydrolysis o r microb ia l  cont aminat ion th an corr e s po n ding s olid s.In theircas e, too, si mp le drying  byco nventi onal m e thod s involves signifi cantd i fficu l tie s. Fi na lly, ho w ever , even the  drying ofa wate r-co ntain ing pas te  of th e a lk ali metals alts of w ashin g-activ esoap s a nd/orof a l k yl be nzen es ulf onates (A B S  p a st es )  ca n al so in vo lveconsidera b le probl ems . 
It isal sod e sirabl e ,a b ove all fo r e conom i c  reasons,t o li m it the q uantit y of w ater to bein troduce d i n t o the pro cess as f a r a sposs ible. Ac co rdin gl y,th e smallest poss ible qua ntity of w ater i s b e st u s ed inth e water-cont ainin gs urfacta n t  pa stes. H o wev er, 
, even_in the_production of spray-dried powder,_safety considerations_can_necessitate such_restrictive_operation of the_spray drying tower_that practical difficulties arise._Thus, safety-based investigations_of_tower-dried powder based on TAS or FAS having active substance contents of 20% or_higher_show that_the_spray_drying of formulations of this_type is only possible to_a very_limited extent and, for example, requires tower entry_temperatures_below 200.degree. C.
Comparable_difficulties or other difficulties are involved in the conversion_of water-containing, more particularly paste-form, preparations_of numerous other_washing-_and_cleaning-active surfactant compounds into_storable dry products. Further examples of_anionic oleo-chemical surfactant compounds include the_known sulfofatty acid methyl esters (fatty acid_methyl ester sulfonates, MES) which are_prepared by.alpha.-sulfonation of the methyl_esters of_fatty acids of vegetable and/or_animal origin containing_predominantly 10_to 20 carbon_atoms in the fatty acid molecule_and subsequent neutralization_to water-soluble monosalts, more particularly the_corresponding_alkali salts. The_corresponding.alpha.-sulfofatty_acids_or disalts_thereof are formed_therefrom_by ester_cleavage_and show specific washing- and cleaning-active_properties_in the same way as mixtures of_disalts and sulfofatty acid_methyl_ester monosalts. However, comparable_problems also arise with other_classes of surfactants where attempts are_made to_produce the_corresponding surfactant raw materials in solid or granular form, as for_example with washing- and cleaning-active alkyl_glycoside compounds. To obtain_light-colored reaction_products,_their synthesis generally_requires_a final_bleaching step carried out, for example, with_water-containing hydrogen_peroxide, so that in this case,_too, modern technology leads_to_the water-containing paste form of the_surfactant. Water-containing alkyl glycoside pastes (APG_pastes) are more susceptible, for_example,_to_hydrolysis or microbial contamination than_corresponding solids. In their case, too,_simple drying by_conventional methods involves significant difficulties. Finally, however,_even_the drying of a water-containing paste_of_the alkali metal salts of washing-active_soaps_and/or_of alkyl benzenesulfonates (ABS pastes)_can also involve considerable problems.
It is_also desirable, above all for economic reasons, to limit_the quantity of_water to be introduced into_the_process_as far as possible. Accordingly, the smallest possible quantity of_water is_best used in_the water-containing surfactant pastes. However,